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        50 Contract API jobs in Grays Inn + 20 miles

        247 exact matches jobs are outside your preferred location

        Azure Cosmos Developer

        Infoplus Technologies UK Ltd
        London
        £550 per day
        This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. * Architect and develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API)
        This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. * Architect and develop cloud-native applications using Azure Cosmos DB (SQL API, Mongo API)
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        NEW
        We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
        We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
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        NEW

        Solution Architect

        Stackstudio Digital Ltd.
        SL4, Windsor
        From £525 to £550 per day
        Job Title: Solution Architect - Location: Windsor, UK - Work Model: Hybrid (1 day per week in office) Job Type: Contract (Inside IR35) Duration: 6 Months - We are seeking an experienced Solution Architect to join our team in Windsor. You will play a key role in defining, communicating, and implementing strategic technology standards and roadmaps, ensuring robust and scalable solutions for business transformation initiatives. This is a hybrid role requiring one day per week in the office. * Identify, publish, and communicate strategic technology standards, frameworks, principles, and roadmaps to guide technology decisions and leverage efficiency opportunities. * Analyze the impact of implementing new technologies into the IT infrastructure. * Assist Solution Architects, Product Specialists, and Project Managers in matching technology services to specific business servi
        Job Title: Solution Architect - Location: Windsor, UK - Work Model: Hybrid (1 day per week in office) Job Type: Contract (Inside IR35) Duration: 6 Months - We are seeking an experienced Solution Architect to join our team in Windsor. You will play a key role in defining, communicating, and implementing strategic technology standards and roadmaps, ensuring robust and scalable solutions for business transformation initiatives. This is a hybrid role requiring one day per week in the office. * Identify, publish, and communicate strategic technology standards, frameworks, principles, and roadmaps to guide technology decisions and leverage efficiency opportunities. * Analyze the impact of implementing new technologies into the IT infrastructure. * Assist Solution Architects, Product Specialists, and Project Managers in matching technology services to specific business servi
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        NEW

        Solutions Architect

        Queen Square Recruitment Limited
        SL4, Windsor
        Unspecified
        Solution Architect - Location: Windsor, UK (Hybrid 1 day per week onsite) Type: Contract (6 months) | Rate: £500/day (Inside IR35) Start Date: 15 September 2025 - About the Role - Our client, a leading global organization, is seeking an experienced Solution Architect to play a key role in shaping and delivering scalable, secure, and efficient solutions within a large-scale transformation programme. You will be responsible for defining technology roadmaps, ensuring architectural best practices, and collaborating with stakeholders across business and IT functions. This is a hands-on, strategic role requiring strong architecture expertise, particularly in AWS integration, application hosting, governance, and security roadmaps, with the ability to influence at senior levels and guide implementation teams. Key Responsibilities
        Solution Architect - Location: Windsor, UK (Hybrid 1 day per week onsite) Type: Contract (6 months) | Rate: £500/day (Inside IR35) Start Date: 15 September 2025 - About the Role - Our client, a leading global organization, is seeking an experienced Solution Architect to play a key role in shaping and delivering scalable, secure, and efficient solutions within a large-scale transformation programme. You will be responsible for defining technology roadmaps, ensuring architectural best practices, and collaborating with stakeholders across business and IT functions. This is a hands-on, strategic role requiring strong architecture expertise, particularly in AWS integration, application hosting, governance, and security roadmaps, with the ability to influence at senior levels and guide implementation teams. Key Responsibilities
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        API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
        API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
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        NEW

        Senior Python Developer

        Hays
        London
        £600.0 - £700.0 per day + Up to £700pd Umbrella
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders - What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working - What you need to do now - If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders - What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working - What you need to do now - If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
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        NEW

        Python Developer

        Hays
        London
        £600.0 - £700.0 per day + Up to £700pd Umbrella
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders - What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working - What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders - What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working - What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
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        Overview - We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities - Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
        Overview - We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities - Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
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        Location: Hybrid Working London Office/Remote - Reporting to: Engineering Manager - We are seeking innovative Linux Systems Engineer to help shape the next generation of secure endpoint solutions. This role is open to both experienced engineers ready to tackle complex challenges and mid-level engineers eager to learn, grow, and innovate. You will work at the intersection of Linux internals, networking, virtualisation, and security, building solutions for high-profile clients. The work you do will contribute to endpoint technologies that will set the direction for the next decadejust as todays established solutions set the standard a decade ago. * Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. * System & Security Engineering: Work with Linux distributions, kernel-level
        Location: Hybrid Working London Office/Remote - Reporting to: Engineering Manager - We are seeking innovative Linux Systems Engineer to help shape the next generation of secure endpoint solutions. This role is open to both experienced engineers ready to tackle complex challenges and mid-level engineers eager to learn, grow, and innovate. You will work at the intersection of Linux internals, networking, virtualisation, and security, building solutions for high-profile clients. The work you do will contribute to endpoint technologies that will set the direction for the next decadejust as todays established solutions set the standard a decade ago. * Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. * System & Security Engineering: Work with Linux distributions, kernel-level
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        NEW

        Lead Android Engineer

        Halian Technology Limited
        London
        From £82,000 to £92,000 per annum
        Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
        Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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        Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
        Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
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        NEWFEATURED
        London - hybrid - 8 Months+ Inside IR35- Umbrella only * Proficient with React Native and Expo open source modules (bare workflow) * Strong React fundamentals: hooks, context, state management * React Navigation, app routing JavaScript & TypeScript * Advanced JavaScript (ES6+) and TypeScript * Type safety and maintainability for large-scale projects * Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules * Native module integration in Expo * React Native projects * State Management & Storage Redux for complex state management MMKV for high-performance key-value storage * Architecture & APIs System Design * Deep expertise in complex React Native architectures and patterns * Subject matter expert for technical problem-solving and architectural guidance * Designs solutions for the most challenging technical requirements GraphQL Integratio
        London - hybrid - 8 Months+ Inside IR35- Umbrella only * Proficient with React Native and Expo open source modules (bare workflow) * Strong React fundamentals: hooks, context, state management * React Navigation, app routing JavaScript & TypeScript * Advanced JavaScript (ES6+) and TypeScript * Type safety and maintainability for large-scale projects * Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules * Native module integration in Expo * React Native projects * State Management & Storage Redux for complex state management MMKV for high-performance key-value storage * Architecture & APIs System Design * Deep expertise in complex React Native architectures and patterns * Subject matter expert for technical problem-solving and architectural guidance * Designs solutions for the most challenging technical requirements GraphQL Integratio
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        NEWPREMIUM

        Lead Android Engineer

        Halian Technology Limited
        RG1, Reading
        From £82,000 to £92,000 per annum
        Halian Technology are searching for aLead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
        Halian Technology are searching for aLead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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        NEW

        Lead Android Engineer

        Halian Technology Limited
        RG12, Bracknell
        From £82,000 to £92,000 per annum
        Halian Technology are searching for aLead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
        Halian Technology are searching for aLead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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        Please note that relevant training, guidance, and advice will be given. This document lists the responsibilities you will encompass in your daily role. Company purpose statement: To use the best technology to better connect people. Company Profile - We are an award-winning technology services company based in Bedford. Established in 2006, we have an outstanding growth record, fantastic clients, and an excellent working environment. Committed to delivering high-touch Technology services to the property sector, specifically skyscrapers, our aim is to provide the highest levels of service coupled with a great working environment. Were hiring an experienced Smart Systems Manager to lead the delivery, integration, and optimisation of smart technologies across multiple client properties. You will act as the central point of contact for all things smartfrom IoT sensors and a
        Please note that relevant training, guidance, and advice will be given. This document lists the responsibilities you will encompass in your daily role. Company purpose statement: To use the best technology to better connect people. Company Profile - We are an award-winning technology services company based in Bedford. Established in 2006, we have an outstanding growth record, fantastic clients, and an excellent working environment. Committed to delivering high-touch Technology services to the property sector, specifically skyscrapers, our aim is to provide the highest levels of service coupled with a great working environment. Were hiring an experienced Smart Systems Manager to lead the delivery, integration, and optimisation of smart technologies across multiple client properties. You will act as the central point of contact for all things smartfrom IoT sensors and a
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        New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
        New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
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        NEWFEATURED

        C# Engineer (Blazor Experience)

        Hays
        MK1, Milton Keynes
        £350.0 - £400.0 per day + £350 - 400 per day Outside IR35
        Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
        Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
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        Salesforce Developer

        Queen Square Recruitment Limited
        SL4, Windsor
        £500 per day
        Job Title: Salesforce Vlocity Developer - Location: Windsor, UK (Hybrid 1 day per week onsite) Contract Duration: 6 Months - Day Rate: £500 Inside IR35 - About the Role - We are looking for an experienced Salesforce Vlocity Developer to join a major business unit on a 6-month contract. This is a hybrid role requiring weekly onsite presence in Windsor, offering an exciting opportunity to work on cutting-edge Salesforce solutions within a collaborative team environment. Key Responsibilities * Design and develop custom Vlocity solutions on the Salesforce platform, including CPQ, CLM, and OmniStudio. * Translate business and product requirements into technical specifications. * Build and maintain Vlocity data models, including objects, fields, and relationships. * Develop custom Apex classes, triggers, and Lightning Web Components.
        Job Title: Salesforce Vlocity Developer - Location: Windsor, UK (Hybrid 1 day per week onsite) Contract Duration: 6 Months - Day Rate: £500 Inside IR35 - About the Role - We are looking for an experienced Salesforce Vlocity Developer to join a major business unit on a 6-month contract. This is a hybrid role requiring weekly onsite presence in Windsor, offering an exciting opportunity to work on cutting-edge Salesforce solutions within a collaborative team environment. Key Responsibilities * Design and develop custom Vlocity solutions on the Salesforce platform, including CPQ, CLM, and OmniStudio. * Translate business and product requirements into technical specifications. * Build and maintain Vlocity data models, including objects, fields, and relationships. * Develop custom Apex classes, triggers, and Lightning Web Components.
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        Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions * Champion best practices in frontend engineering, testing, and CI/CD * Mentor and support teammates to raise the engineering
        Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions * Champion best practices in frontend engineering, testing, and CI/CD * Mentor and support teammates to raise the engineering
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        Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
        Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
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        Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
        Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
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        Frequently Asked Questions

        How many contract API jobs are there in Grays Inn?
        There are 50 contract API jobs within 20 miles of Grays Inn available on CWJobs right now.

        Where in Grays Inn are these contract jobs?
        You can find contract jobs in Southwark, Shadwell, The City, City (EC3).

        What other similar jobs are there to contract API jobs in Grays Inn?
        As well as contract API jobs in Grays Inn, you can find contract Aws, IT, Software Development, amongst many others.