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        26 Contract API jobs in Piccadilly, Central London + 20 miles

        Client Server

        Technical Product Manager API SaaS

        Client Server
        Shoreditch, East London (E1), EC2A
        £95000 - £120000 per annum + benefits
        You'll be embedded within delivery teams, UX and engineering and utilise your knowledge of software development to make trade-offs, steward the delivery process and close the gaps in requirements including producing technical documentation along with wireframes and API scaffolding where appropriate. Apply now to find out more about this Technical Product Manager (API SaaS) opportunity.
        You'll be embedded within delivery teams, UX and engineering and utilise your knowledge of software development to make trade-offs, steward the delivery process and close the gaps in requirements including producing technical documentation along with wireframes and API scaffolding where appropriate. Apply now to find out more about this Technical Product Manager (API SaaS) opportunity.
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        NEWPREMIUM
        Halian Technology Limited

        Lead .Net Developer

        Halian Technology Limited
        Central London (W1)
        From £75,000 to £85,000 per annum Plus bonus and benfits
        Architect secure, high-performance API solutions using C#, .NET, and Azure. Ensure best practices in API design, security, and performance optimisation. Strong experience with RESTful API development and microservices architecture. Strong understanding of API security, authentication, and performance optimisation.
        Architect secure, high-performance API solutions using C#, .NET, and Azure. Ensure best practices in API design, security, and performance optimisation. Strong experience with RESTful API development and microservices architecture. Strong understanding of API security, authentication, and performance optimisation.
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        Staffworx Limited

        Enterprise Architect - Service Assurance & Operations

        Staffworx Limited
        City of London (EC1A)
        market rates, outside IR35
        Contract | UK-based | some travel | Outside IR35 - A global consultancy operating at the forefront of mobile telecoms and satellite convergence is looking for an Enterprise Architect to lead service assurance and operational transformation across their client programmes. This is a hands-on role with real strategic influence. You will own the architectural vision for operational support and service assurance, working closely with client product, engineering and commercial teams to drive measurable improvements in service quality, platform resilience and partner ecosystem integration. * Defining and owning target-state architecture for OSS and service assurance platforms across satellite and terrestrial networks * Designing service assurance frameworks covering fault management, performance monitoring, SLA management, and root cause analysis
        Contract | UK-based | some travel | Outside IR35 - A global consultancy operating at the forefront of mobile telecoms and satellite convergence is looking for an Enterprise Architect to lead service assurance and operational transformation across their client programmes. This is a hands-on role with real strategic influence. You will own the architectural vision for operational support and service assurance, working closely with client product, engineering and commercial teams to drive measurable improvements in service quality, platform resilience and partner ecosystem integration. * Defining and owning target-state architecture for OSS and service assurance platforms across satellite and terrestrial networks * Designing service assurance frameworks covering fault management, performance monitoring, SLA management, and root cause analysis
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        NEW
        Client Server

        Principal Java Developer - Consultancy

        Client Server
        City of London (EC2A), EC2A
        £100000 - £120000 per annum + benefits
        Principal Java Developer / Software Engineer (Java SpringBoot AWS) London / WFH to £120k - Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. * Salary to £120k * Pension, Life Assurance, Income Protection * Private medical care for you and your family, including mental health * Travel Insurance * Charitable giving * Gym membership for you and your family * Flexible holiday scheme - As a Principal Java Developer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments.
        Principal Java Developer / Software Engineer (Java SpringBoot AWS) London / WFH to £120k - Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. * Salary to £120k * Pension, Life Assurance, Income Protection * Private medical care for you and your family, including mental health * Travel Insurance * Charitable giving * Gym membership for you and your family * Flexible holiday scheme - As a Principal Java Developer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments.
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        NEWPREMIUM
        Client Server

        Lead Python Developer - Fintech

        Client Server
        Soho, Central London (W1), W1D
        £100000 - £120000 per annum + benefits
        Lead Python Developer / Software Engineer London / WFH to £120k - Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development.
        Lead Python Developer / Software Engineer London / WFH to £120k - Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development.
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        NEWPREMIUM
        Client Server

        Backend Software Engineer Python - Start-up

        Client Server
        West End, Central London (W1), W1U
        £85000 - £100000 per annum + benefits
        Backend Software Engineer / Developer (Python) London / WFH to £100k - Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Backend Software Engineer you'll join a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role which could progress to Principal Engineer or Team Lead if desired as the company continues to scale. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model. * You're an experienced Software Engineer with a strong knowledge of software ...
        Backend Software Engineer / Developer (Python) London / WFH to £100k - Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Backend Software Engineer you'll join a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role which could progress to Principal Engineer or Team Lead if desired as the company continues to scale. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model. * You're an experienced Software Engineer with a strong knowledge of software ...
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        NEWPREMIUM
        DGH Recruitment

        .NET Developer

        DGH Recruitment
        East London (E1)
        £55000 - £60000 per annum
        .NET Software Engineer - 12 month FTC - An opportunity to join a major transformation programme, building modern, scalable solutions and contributing to a data-driven technology landscape. Role Overview - Working within an agile engineering squad, you will develop new features, build integrations, and support cloud-based platforms using the latest Microsoft technologies. The role includes feature development, system integrations, and contributing to CI/CD, monitoring, and security improvements. Key Responsibilities - Design, develop and maintain reliable .NET solutions (primarily C#). Build features for both internal and external users. Develop integrations across internal systems, third-party tools, and Azure services. Create and maintain CI/CD pipelines (Azure DevOps). Participate in agile ceremonies and collaborate in code reviews.
        .NET Software Engineer - 12 month FTC - An opportunity to join a major transformation programme, building modern, scalable solutions and contributing to a data-driven technology landscape. Role Overview - Working within an agile engineering squad, you will develop new features, build integrations, and support cloud-based platforms using the latest Microsoft technologies. The role includes feature development, system integrations, and contributing to CI/CD, monitoring, and security improvements. Key Responsibilities - Design, develop and maintain reliable .NET solutions (primarily C#). Build features for both internal and external users. Develop integrations across internal systems, third-party tools, and Azure services. Create and maintain CI/CD pipelines (Azure DevOps). Participate in agile ceremonies and collaborate in code reviews.
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        DGH Recruitment

        Sharepoint Developer & Administrator

        DGH Recruitment
        City of London (EC1)
        £85000 - £93000 per annum + Benefits
        Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
        Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
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        Morson Edge

        Security Architect

        Morson Edge
        Moorgate, City of London (EC2), EC2Y 9AQ
        £800 - 825 per day
        London (1 day per month - may be more frequent) - £800 - £825 Inside IR35 - Morson Edge have partnered with a major UK retail client to recruit an experienced Security Architect to play a pivotal role in a high-profile Cyber Security Maturity Programme within the CISO function. This a great opportunity to shape and elevate enterprise-wide cyber maturity, influence strategic direction, and drive meaningful, measurable improvements to security resilience across a complex technology estate. You’ll act as a security champion, working at the heart of architecture, engineering, and business teams to embed secure-by-design principles and deliver a forward-looking security architecture that evolves with both business priorities and the threat landscape. What You’ll Be Doing * Lead the design and evolution of target-state security architectures aligned to maturity goals * Drive cyber ...
        London (1 day per month - may be more frequent) - £800 - £825 Inside IR35 - Morson Edge have partnered with a major UK retail client to recruit an experienced Security Architect to play a pivotal role in a high-profile Cyber Security Maturity Programme within the CISO function. This a great opportunity to shape and elevate enterprise-wide cyber maturity, influence strategic direction, and drive meaningful, measurable improvements to security resilience across a complex technology estate. You’ll act as a security champion, working at the heart of architecture, engineering, and business teams to embed secure-by-design principles and deliver a forward-looking security architecture that evolves with both business priorities and the threat landscape. What You’ll Be Doing * Lead the design and evolution of target-state security architectures aligned to maturity goals * Drive cyber ...
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        PREMIUM
        EXL Service

        React Frontend Developer

        EXL Service
        City of London (EC3N)
        A competitive salary with a generous bonus and additional benefits
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:Front-End Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking a skilledFront-End Developerto join our Analytics team in London.
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:Front-End Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking a skilledFront-End Developerto join our Analytics team in London.
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        EXL Service

        .NET Core Backend Developer

        EXL Service
        The City, City of London (EC3), EC3N 1DD
        A competitive salary with a generous bonus and additional benefits
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
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        EXL Service

        Junior AI Consultant Apprentice

        EXL Service
        The City, City of London (EC3), EC3N 1DD
        Paid Apprenticeship
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the world's leading corporations in industries including insurance, healthcare and life sciences, banking and capital markets, retail, communications and media, and energy and infrastructure, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have over 65,000 employees spanning six continents. Role Title:Junior AI Consultant Apprentice - BU/Segment:International Growth Markets / AI & Data Solutions - Location:EXL London.
        EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the world's leading corporations in industries including insurance, healthcare and life sciences, banking and capital markets, retail, communications and media, and energy and infrastructure, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have over 65,000 employees spanning six continents. Role Title:Junior AI Consultant Apprentice - BU/Segment:International Growth Markets / AI & Data Solutions - Location:EXL London.
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        Penningtons Manches LLP

        Workflow Developer

        Penningtons Manches LLP
        City of London, London
        Competitive
        Overview: The Workflow Developer is responsible for designing, developing, and continually improving workflows, automations, and integrations across the firms core business systems including case management and finance platforms. The role ensures that processes are efficient, reliable, and aligned with legal-sector best practices. Working closely with business stakeholders, the Workflow Developer translates operational needs into robust, secure, and well-documented technical solutions that support high-quality legal service delivery and contribute to the firms wider digital strategy. The firm operates a hybrid agile working policy allowing employees to work from home (or another UK location) for up to 50% of their time. Individuals can also apply for other flexible working options either at the time of recruitment or during the course of their employment.
        Overview: The Workflow Developer is responsible for designing, developing, and continually improving workflows, automations, and integrations across the firms core business systems including case management and finance platforms. The role ensures that processes are efficient, reliable, and aligned with legal-sector best practices. Working closely with business stakeholders, the Workflow Developer translates operational needs into robust, secure, and well-documented technical solutions that support high-quality legal service delivery and contribute to the firms wider digital strategy. The firm operates a hybrid agile working policy allowing employees to work from home (or another UK location) for up to 50% of their time. Individuals can also apply for other flexible working options either at the time of recruitment or during the course of their employment.
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        Fundpath

        Salesforce Developer

        Fundpath
        City of London, London
        £50,000 - £58,000 a year
        Position: Salesforce Developer - Reports To: Technical Architect - Location: LONDON (Remote and Office based - Flexible) As a Salesforce Developer at Fundpath, you will play a key role in designing, developing, and maintaining Salesforce solutions to enhance business efficiency and functionality. You will work on resolving platform issues, developing custom solutions, and integrating Salesforce with other systems to meet the organisation's growing needs. Collaborating with stakeholders across the business, you will ensure seamless operation and optimal utilisation of Salesforce, contributing to the success of our operations. * Analyse and resolve issues within the Salesforce platform, minimising disruptions and ensuring efficient operations. * Develop tailored solutions using Apex , Visualforce , and Lightning Components , adhering to Salesforce best practices.
        Position: Salesforce Developer - Reports To: Technical Architect - Location: LONDON (Remote and Office based - Flexible) As a Salesforce Developer at Fundpath, you will play a key role in designing, developing, and maintaining Salesforce solutions to enhance business efficiency and functionality. You will work on resolving platform issues, developing custom solutions, and integrating Salesforce with other systems to meet the organisation's growing needs. Collaborating with stakeholders across the business, you will ensure seamless operation and optimal utilisation of Salesforce, contributing to the success of our operations. * Analyse and resolve issues within the Salesforce platform, minimising disruptions and ensuring efficient operations. * Develop tailored solutions using Apex , Visualforce , and Lightning Components , adhering to Salesforce best practices.
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        Frequently Asked Questions

        How many contract API jobs are there in Piccadilly, Central London?
        There are 26 contract API jobs within 20 miles of Piccadilly, Central London available on CWJobs right now.
        Where in Piccadilly, Central London are these contract jobs?
        You can find contract jobs in The City, City (EC3), Euston, Harmondsworth.
        What other similar jobs are there to contract API jobs in Piccadilly, Central London?
        As well as contract API jobs in Piccadilly, Central London, you can find contract IT, Software Development, Architecture, amongst many others.