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131 Permanent API jobs in Coles Meads + 20 miles
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Practical knowledge in SQL/NoSQL databases and API development/integration.
Practical knowledge in SQL/NoSQL databases and API development/integration.
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Proficiency in RESTful API development and construction.
Proficiency in RESTful API development and construction.
FEATURED
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Digital and Web Analyst
Digital and Web Analyst
iQ Student Accommodation Astor House
SE1, South East London, SE1 2DB
£55k - 60k per year + 25 days annual leave (plus bank holidays)
Familiarity with conversion APIs (Meta CAPI, Google Enhanced Conversions, TikTok Events API)
Familiarity with conversion APIs (Meta CAPI, Google Enhanced Conversions, TikTok Events API)
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Strong background in software architecture, microservices, and API design.
Strong background in software architecture, microservices, and API design.
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Experience with Python for data extraction and API integration.
Experience with Python for data extraction and API integration.
FEATURED
Build, deploy, and monitor solutions using AWS services (Lambda, API customizing platforms and overseeing the full API lifecycle using Apigee Edge and X. Drive API strategy execution, provide technical support, and generate insights - o Ensure API security and access control using OAuth, API keys, JWT, and other - o Strong knowledge of Apigee or similar API Management platforms. o Implement API design patterns, performance optimization, and custom - analytics reporting for API consumption and error tracking.
Build, deploy, and monitor solutions using AWS services (Lambda, API customizing platforms and overseeing the full API lifecycle using Apigee Edge and X. Drive API strategy execution, provide technical support, and generate insights - o Ensure API security and access control using OAuth, API keys, JWT, and other - o Strong knowledge of Apigee or similar API Management platforms. o Implement API design patterns, performance optimization, and custom - analytics reporting for API consumption and error tracking.
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Senior Solution Architect
Senior Solution Architect
UK Health Security Agency
Canary Wharf, E14 4PU
From £54,416 to £68,344 per annum
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
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Systems Engineer - Enterprise Technology
Systems Engineer - Enterprise Technology
Randstad Digital
EC1, City of London
£250000 - £350000 per annum
Proficiency with the administration, integration, and API capabilities of SaaS platforms such as Okta, Google Workspace, Atlassian products, and Slack. * Familiarity with authentication and provisioning methods like SAML, OIDC, SCIM, and non-standard API-based workflows.
Proficiency with the administration, integration, and API capabilities of SaaS platforms such as Okta, Google Workspace, Atlassian products, and Slack. * Familiarity with authentication and provisioning methods like SAML, OIDC, SCIM, and non-standard API-based workflows.
NEWFEATURED
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Rapidly learn complex API syntaxes and interfaces, understand their business context, and keep pace with ongoing changes.
Rapidly learn complex API syntaxes and interfaces, understand their business context, and keep pace with ongoing changes.
PREMIUM
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Build and work with modern API and microservices architectures
Build and work with modern API and microservices architectures
PREMIUM
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Senior Backend Engineer (Platform & Security)
Senior Backend Engineer (Platform & Security)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
Strong understanding of distributed systems, microservices architecture, and API design.
Strong understanding of distributed systems, microservices architecture, and API design.
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IT Platforms Engineer
IT Platforms Engineer
The Health And Care Professions Council
Kennington, SE11 4BU
From £57,000 to £65,000 per annum
Solid working knowledge of Microsoft Azure services, including Web Apps, App Services, Azure Site Recovery, Log Analytics, and Azure API Management. You should be confident working with API documentation and collaborating with technical teams.
Solid working knowledge of Microsoft Azure services, including Web Apps, App Services, Azure Site Recovery, Log Analytics, and Azure API Management. You should be confident working with API documentation and collaborating with technical teams.
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Solutions Architect - 6 months £700 per day - This logistics business, based in central London, has undertaken a significant change and transformation programme, the outcome of which is a new multi SAAS platform that will underpins the future state of the architecture. As part of this programme we are looking for a Solution Architect to contribute to shaping the future-state architecture that enables the organisation to meet its strategic business goals. This role ensures that technology solutions directly support desired business outcomes - such as improved efficiency, customer experience, scalability, and innovation-while maintaining strong architectural integrity. The Solution Architect oversees the design of systems and applications across the enterprise and regularly reviews the application portfolio to maximise value, reduce complexity, and ensure agility.
Solutions Architect - 6 months £700 per day - This logistics business, based in central London, has undertaken a significant change and transformation programme, the outcome of which is a new multi SAAS platform that will underpins the future state of the architecture. As part of this programme we are looking for a Solution Architect to contribute to shaping the future-state architecture that enables the organisation to meet its strategic business goals. This role ensures that technology solutions directly support desired business outcomes - such as improved efficiency, customer experience, scalability, and innovation-while maintaining strong architectural integrity. The Solution Architect oversees the design of systems and applications across the enterprise and regularly reviews the application portfolio to maximise value, reduce complexity, and ensure agility.
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Head of Development - AI Intelligence Platform. Remote UK
Head of Development - AI Intelligence Platform. Remote UK
Recruitment Revolution
EC2A, City of London
Competitive Salary + 20% bonus + Equity
Shape the platform architecture, ensuring scalable, secure, cloud-native design across AI, data, and API layers.
Shape the platform architecture, ensuring scalable, secure, cloud-native design across AI, data, and API layers.
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Senior Backend Engineer (Application & AI Orchestration)
Senior Backend Engineer (Application & AI Orchestration)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
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Understanding of relational and NoSQL databases, data structures, API patterns, and service-oriented architectures
Understanding of relational and NoSQL databases, data structures, API patterns, and service-oriented architectures
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Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
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SeniorPower Platform developer
SeniorPower Platform developer
Halian Technology Limited
W1, Central London
From £70,000 to £85,000 per annum Plus bonus and benefits
My client is an award-winning and market-leading insights and solutions provider across pensions and financial services, energy, health, and analytics. The Opportunity - We're looking for an experienced and innovativePower Platform Developerto join my clients growing team. Youll play a key role in designing, developing, and supporting scalable, user-friendly business applications, automation workflows, and analytics solutions using Microsoft Power Platform. This is a fantastic opportunity to work across a diverse range of business areas, collaborating closely with stakeholders to drive digital transformation and operational efficiency. Key Responsibilities * Design, build, and maintain custom business applications usingPower Apps * Develop and enhance workflows and automations withPower Automate * Create interactive dashboards and data visualisations usingPower BI
My client is an award-winning and market-leading insights and solutions provider across pensions and financial services, energy, health, and analytics. The Opportunity - We're looking for an experienced and innovativePower Platform Developerto join my clients growing team. Youll play a key role in designing, developing, and supporting scalable, user-friendly business applications, automation workflows, and analytics solutions using Microsoft Power Platform. This is a fantastic opportunity to work across a diverse range of business areas, collaborating closely with stakeholders to drive digital transformation and operational efficiency. Key Responsibilities * Design, build, and maintain custom business applications usingPower Apps * Develop and enhance workflows and automations withPower Automate * Create interactive dashboards and data visualisations usingPower BI
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Full Stack Engineer / Developer (JavaScript Vue.js Python) London to £100k - Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Full Stack Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Full Stack Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll work across the full tech stack using JavaScript and Vue.js on the front en
Full Stack Engineer / Developer (JavaScript Vue.js Python) London to £100k - Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Full Stack Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Full Stack Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll work across the full tech stack using JavaScript and Vue.js on the front en
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Location: Home Based 5 Month Contract Pay Rate: £600 - £650 per day (INSIDE IR35) Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer for a leading technology consultancy on an initial 5 month contract. This is a fully remote role. Due to the nature of the project valid SC Clearance is required. * Java 8 * Spring * Maven * Git * Junit * Web APIs (REST/JSON and XML/SOAP) * JSPs, Javascript, JQuery, html, CSS, Mockito/JMock, MS SQL Server, MyBatis, Azure, Azure DevOps Pipelines, Docker, Ansible, Linux, Java 11, Spring Boot
Location: Home Based 5 Month Contract Pay Rate: £600 - £650 per day (INSIDE IR35) Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer for a leading technology consultancy on an initial 5 month contract. This is a fully remote role. Due to the nature of the project valid SC Clearance is required. * Java 8 * Spring * Maven * Git * Junit * Web APIs (REST/JSON and XML/SOAP) * JSPs, Javascript, JQuery, html, CSS, Mockito/JMock, MS SQL Server, MyBatis, Azure, Azure DevOps Pipelines, Docker, Ansible, Linux, Java 11, Spring Boot
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Senior Java Software Engineer
Senior Java Software Engineer
Run-Time Group Ltd
SW19, South West London
From £70,000 to £85,000 per annum
Job Title: Mid-Senior Java Engineer - Location:London (Hybrid - 2-3 days in-office) Salary:Up to £85,000 per annum + Benefits - Sector:Financial Services - We are seeking aSenior-Level Java Engineerto join a dynamic financial technology team in London. You will play a key role in developing, maintaining, and enhancing high-performance, scalable financial applications. This is a fantastic opportunity for an ambitious developer with experience in Java and a passion for the financial sector. The role follows a hybrid working model, with 2-3 days per week in the office. * Design, develop, and maintain high-quality Java-based applications for financial services. * Collaborate with cross-functional teams to deliver robust and scalable software solutions. * Ensure code quality, security, and performance standards are met.
Job Title: Mid-Senior Java Engineer - Location:London (Hybrid - 2-3 days in-office) Salary:Up to £85,000 per annum + Benefits - Sector:Financial Services - We are seeking aSenior-Level Java Engineerto join a dynamic financial technology team in London. You will play a key role in developing, maintaining, and enhancing high-performance, scalable financial applications. This is a fantastic opportunity for an ambitious developer with experience in Java and a passion for the financial sector. The role follows a hybrid working model, with 2-3 days per week in the office. * Design, develop, and maintain high-quality Java-based applications for financial services. * Collaborate with cross-functional teams to deliver robust and scalable software solutions. * Ensure code quality, security, and performance standards are met.
£50,000 - £75,000 DOE | Full-time, on-site | Start: ASAP - Join a global logistics company that's embracing the power of AI to transform the way it operates. This is an opportunity to be part of a forward-thinking team that's leveraging the latest in Large Language Models (LLMs) and automation to drive real business value. As an AI Solutions Engineer, you'll design, build, and implement intelligent automation solutions using cutting-edge AI technologies. Working closely with business stakeholders, you'll identify opportunities for innovation, prototype new ideas, and deliver scalable AI-driven systems that make a measurable impact. * Collaborating with business teams to uncover and define AI/automation opportunities. * Engineering and optimising prompts to ensure consistent, high-quality LLM outputs.
£50,000 - £75,000 DOE | Full-time, on-site | Start: ASAP - Join a global logistics company that's embracing the power of AI to transform the way it operates. This is an opportunity to be part of a forward-thinking team that's leveraging the latest in Large Language Models (LLMs) and automation to drive real business value. As an AI Solutions Engineer, you'll design, build, and implement intelligent automation solutions using cutting-edge AI technologies. Working closely with business stakeholders, you'll identify opportunities for innovation, prototype new ideas, and deliver scalable AI-driven systems that make a measurable impact. * Collaborating with business teams to uncover and define AI/automation opportunities. * Engineering and optimising prompts to ensure consistent, high-quality LLM outputs.
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Senior Back End Developer TypeScript Node.js
Senior Back End Developer TypeScript Node.js
Client Server
EC2A, City of London
£65000 - £80000 per annum + benefits
Senior Back End Developer / Engineer (TypeScript Node.js) Remote UK to £80k - Are you a senior, hands-on Back End Developer looking for an opportunity to take ownership and progress your career at a scaling tech company? You could be joining a growing games company that combines state of the art technology, gaming and luxury fashion. As a Senior Back End Developer you'll join the team as they scale the product to support millions of users. You'll design and deliver high-quality, maintainable backend code and features using TypeScript and Node.js that is aligned with established codebase architectural standards and covered by tests as well as supporting backend system performance and reliability, helping to maintain 99% uptime SLA. You'll design, implement and extend robust APIs and microservices supporting gameplay, user management, platform and content management sys
Senior Back End Developer / Engineer (TypeScript Node.js) Remote UK to £80k - Are you a senior, hands-on Back End Developer looking for an opportunity to take ownership and progress your career at a scaling tech company? You could be joining a growing games company that combines state of the art technology, gaming and luxury fashion. As a Senior Back End Developer you'll join the team as they scale the product to support millions of users. You'll design and deliver high-quality, maintainable backend code and features using TypeScript and Node.js that is aligned with established codebase architectural standards and covered by tests as well as supporting backend system performance and reliability, helping to maintain 99% uptime SLA. You'll design, implement and extend robust APIs and microservices supporting gameplay, user management, platform and content management sys
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Description - Role Overview: We are seeking a skilled Calypso Developer to support a strategic transformation programme aimed at establishing Calypso as the single book of record for all OTC Derivative trades within our Securities Services business. This role will be instrumental in expanding Calypso coverage, automating trade capture, lifecycle events, and pricing for a wide range of products and clients. ________________________________________ Key Responsibilities: Develop and configure Calypso to support new OTC derivative products including: o CDS (Options) o Performance Swaps Market Index o CDS Index Tranche Automate trade capture and lifecycle event processing for ~9 clients currently using manual input. Implement automated pricing solutions for ~11 clients currently priced manually. Collaborate with business analysts, product owners, and operations teams to ga
Description - Role Overview: We are seeking a skilled Calypso Developer to support a strategic transformation programme aimed at establishing Calypso as the single book of record for all OTC Derivative trades within our Securities Services business. This role will be instrumental in expanding Calypso coverage, automating trade capture, lifecycle events, and pricing for a wide range of products and clients. ________________________________________ Key Responsibilities: Develop and configure Calypso to support new OTC derivative products including: o CDS (Options) o Performance Swaps Market Index o CDS Index Tranche Automate trade capture and lifecycle event processing for ~9 clients currently using manual input. Implement automated pricing solutions for ~11 clients currently priced manually. Collaborate with business analysts, product owners, and operations teams to ga
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Senior Backend Engineer
Senior Backend Engineer
Plexus Resource Solutions Ltd
EC1, City of London
From £120,000 to £160,000 per annum
Web3 / Social Product / Blockchain Infrastructure - Remote - 120k-160k - Plexus is partnering with a leading Web3 innovator building the next-generation social platform powered by blockchain. Theyre seeking a Senior Backend Engineer to architect scalable systems and help bring seamless, on-chain social experiences to life. The candidate will lead backend architecture and development for the companys social platform. Responsibilities - Design, develop, and maintain scalable backend systems and APIs. Collaborate with frontend engineers to deliver seamless user experiences. Integrate web3 technologies via third-party APIs or in-house solutions. Continuously improve infrastructure, monitoring, and engineering processes. Requirements - 4+ years of production software engineering experience, ideally at scale. Strong proficiency with TypeScript, Node.js, and AWS.
Web3 / Social Product / Blockchain Infrastructure - Remote - 120k-160k - Plexus is partnering with a leading Web3 innovator building the next-generation social platform powered by blockchain. Theyre seeking a Senior Backend Engineer to architect scalable systems and help bring seamless, on-chain social experiences to life. The candidate will lead backend architecture and development for the companys social platform. Responsibilities - Design, develop, and maintain scalable backend systems and APIs. Collaborate with frontend engineers to deliver seamless user experiences. Integrate web3 technologies via third-party APIs or in-house solutions. Continuously improve infrastructure, monitoring, and engineering processes. Requirements - 4+ years of production software engineering experience, ideally at scale. Strong proficiency with TypeScript, Node.js, and AWS.
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Related Jobs
Locations
- Southwark
- The City, City (EC3)
- Charing Cross
- Datchet Common
- Euston
- The Borough
- The City, City (EC4)
- White Hill
- Canary Wharf
- Clerkenwell
- City of London
- South East London
- Reading
- South West London
- Central London
- West End
- North West London
- East London
- West London
- North London
- London
- Berkshire
- Hampshire
- Surrey
- Hertfordshire
- East Sussex
- West Sussex
- Oxfordshire
- Bedfordshire
- Buckinghamshire
- South East