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Locations
Locations
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2 Permanent API jobs in Peterborough + 20 miles
56 exact matches jobs are outside your preferred location
Vacancy: 1 - Location: Leicester - TESTQ Technologies is an IT services and solutions company whose offerings spans over variety of industry sectors with strong technical, domain and process expertise helping clients grow their businesses and decrease operational costs on continuous basis in an ever-changing business environment. This opportunity is in the solution design and development arena for IT Business Analyst who will play a major role in the technical design and development of the companys technical offerings. The position is based at our Leicester office with occasional assignments at client locations. * Gather, analyze, and document business requirements from stakeholders. * Translate business needs into functional specifications for IT solutions. * Conduct gap analysis, process mapping, and workflow modeling.
Vacancy: 1 - Location: Leicester - TESTQ Technologies is an IT services and solutions company whose offerings spans over variety of industry sectors with strong technical, domain and process expertise helping clients grow their businesses and decrease operational costs on continuous basis in an ever-changing business environment. This opportunity is in the solution design and development arena for IT Business Analyst who will play a major role in the technical design and development of the companys technical offerings. The position is based at our Leicester office with occasional assignments at client locations. * Gather, analyze, and document business requirements from stakeholders. * Translate business needs into functional specifications for IT solutions. * Conduct gap analysis, process mapping, and workflow modeling.
Understanding of Microservices, API call, even streaming technologies.
Understanding of Microservices, API call, even streaming technologies.
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Description - ADP is hiring a Lead Application Developer. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work within a scrum team to bring the designs and ideas to life for new or improved web applications. This work will support a mix of internal and external clients. You will work with clients, product managers, architects, software engineers, and more to plan, design, develop, test, and implement impactful solutions that support 850k Small business clients across the USA. You will start your day on a scrum call to prioritize and track work.
Description - ADP is hiring a Lead Application Developer. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work within a scrum team to bring the designs and ideas to life for new or improved web applications. This work will support a mix of internal and external clients. You will work with clients, product managers, architects, software engineers, and more to plan, design, develop, test, and implement impactful solutions that support 850k Small business clients across the USA. You will start your day on a scrum call to prioritize and track work.
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software embedded in HSMs, client-side tools, API libraries. * Embedded and application development over the range from embedded code & drivers, to client-side tools & API libraries.
software embedded in HSMs, client-side tools, API libraries. * Embedded and application development over the range from embedded code & drivers, to client-side tools & API libraries.
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Due to continued success, they are looking to grow one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Due to continued success, they are looking to grow one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
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Understanding of RESTful API development and microservices.
Understanding of RESTful API development and microservices.
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Strong understanding of API testing, performance profiling, and security testing (including OWASP top 10).
Strong understanding of API testing, performance profiling, and security testing (including OWASP top 10).
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Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
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Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
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Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
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Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
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What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for a talented software engineer to join its software team. This team builds software used by scientists to track and process large qua
What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for a talented software engineer to join its software team. This team builds software used by scientists to track and process large qua
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ClearCourse - Location: Remote - Salary: Competitive + Bonus + Benefits - Role Type: Full-Time, Permanent - Shape the Future of SaaS in a Hands-On, High-Impact Engineering Role - Are you a highly skilled C#/.NET and Angular developer with a passion for building clean, scalable software in a modern tech environment? Are you looking for the freedom to make meaningful technical decisions, mentor others, and contribute to a long-standing SaaS product used by thousands? Were seeking a Senior Software Engineer to join our small, agile development team at ClearCourse. Youll play a key role in designing, building, and maintaining a feature-rich, high-availability application hosted on Azurewhile influencing decisions across architecture, testing, performance, and quality. * C# 7+ / .NET * Angular 13+ * SQL Server * Redis * APIs and Integrations * Message Queues * CI/CD Pipeli
ClearCourse - Location: Remote - Salary: Competitive + Bonus + Benefits - Role Type: Full-Time, Permanent - Shape the Future of SaaS in a Hands-On, High-Impact Engineering Role - Are you a highly skilled C#/.NET and Angular developer with a passion for building clean, scalable software in a modern tech environment? Are you looking for the freedom to make meaningful technical decisions, mentor others, and contribute to a long-standing SaaS product used by thousands? Were seeking a Senior Software Engineer to join our small, agile development team at ClearCourse. Youll play a key role in designing, building, and maintaining a feature-rich, high-availability application hosted on Azurewhile influencing decisions across architecture, testing, performance, and quality. * C# 7+ / .NET * Angular 13+ * SQL Server * Redis * APIs and Integrations * Message Queues * CI/CD Pipeli
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What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for a talented software engineer to join its software team. This team builds software used by scientists to track and process large qua
What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for a talented software engineer to join its software team. This team builds software used by scientists to track and process large qua
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Description - ADP is hiring a Director, Application Development. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you an inspiring leader who people have followed and worked for over and over again? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work in an Agile development environment to bring the designs and ideas to life for new or improved products and web applications. This work will support a mix of internal and external clients. You will be working on current and upcoming projects that connect design, engineering, product development, and implementation to understand how those pieces impact infrastructure.
Description - ADP is hiring a Director, Application Development. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you an inspiring leader who people have followed and worked for over and over again? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work in an Agile development environment to bring the designs and ideas to life for new or improved products and web applications. This work will support a mix of internal and external clients. You will be working on current and upcoming projects that connect design, engineering, product development, and implementation to understand how those pieces impact infrastructure.
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Full Stack Developer - DV Cleared - Hybrid - Various Locations
Full Stack Developer - DV Cleared - Hybrid - Various Locations
Experis
UK
£60000 - £120000 per annum + Excellent Benefits
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
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Proficiency in REST API development
Proficiency in REST API development
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API-centric architectures.
API-centric architectures.
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
Full Stack Developer .NET / Angular - Hybrid 2 -3 days based in Coleshill, Warwickshire (UK-based) | Permanent | Full-Time? Work on a global SaaS platform transforming recruitment tech - Microsoft Partner | Cutting-Edge Greenfield Projects | Agile Delivery - About Mercury - Mercury is a fast-growing SaaS business operating in close partnership with Microsoft. We specialise in delivering market-leading recruitment technology to professional staffing sectors worldwide. Our flagship product is a custom-built Applicant Tracking System (ATS) built on Microsoft Dynamics 365, tailored specifically for recruitment agencies and talent-focused businesses. With a modern tech stack and a culture of innovation, were on a mission to transform how recruitment businesses operate empowering them with scalable, intuitive software solutions. The Role
Full Stack Developer .NET / Angular - Hybrid 2 -3 days based in Coleshill, Warwickshire (UK-based) | Permanent | Full-Time? Work on a global SaaS platform transforming recruitment tech - Microsoft Partner | Cutting-Edge Greenfield Projects | Agile Delivery - About Mercury - Mercury is a fast-growing SaaS business operating in close partnership with Microsoft. We specialise in delivering market-leading recruitment technology to professional staffing sectors worldwide. Our flagship product is a custom-built Applicant Tracking System (ATS) built on Microsoft Dynamics 365, tailored specifically for recruitment agencies and talent-focused businesses. With a modern tech stack and a culture of innovation, were on a mission to transform how recruitment businesses operate empowering them with scalable, intuitive software solutions. The Role
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Software Consulting Engineer – T&D Configuration Systems & Software Solutions
Software Consulting Engineer – T&D Configuration Systems & Software Solutions
GE Vernova
UK
Competitive
Drive the integration IEC 61850 engineering workflows (SCL-based ICD, SCD, SSD) into intuitive, automated tooling ecosystems aligned with modern UI/UX, API design, and utility integration requirements. * Knowledge of data modeling, API integration, network communications, and cybersecurity practices.
Drive the integration IEC 61850 engineering workflows (SCL-based ICD, SCD, SSD) into intuitive, automated tooling ecosystems aligned with modern UI/UX, API design, and utility integration requirements. * Knowledge of data modeling, API integration, network communications, and cybersecurity practices.
Job Introduction - Job Title: Technical Business Analyst - Salary: £51,000 - 56,000 - Contract: Permanent - Location: Hybrid based in Warrington - Weekly Hours: 35 hours per week - So. What is this role exactly? This is an exciting opportunity for a Technical Business Analyst to join our Data & Business Intelligence team. We're continuing to evolve our data capabilities and governance frameworks-so it's a great time to be part of the journey. We're looking for someone who's passionate about data, thrives on technical analysis, and takes pride in delivering high-quality solutions that support business strategy and decision-making. What will my working week look like? You will be homebased, living within the North West, within a reasonable travelling distance of our Head Office in Warrington, to attend meetings and training courses when needed.
Job Introduction - Job Title: Technical Business Analyst - Salary: £51,000 - 56,000 - Contract: Permanent - Location: Hybrid based in Warrington - Weekly Hours: 35 hours per week - So. What is this role exactly? This is an exciting opportunity for a Technical Business Analyst to join our Data & Business Intelligence team. We're continuing to evolve our data capabilities and governance frameworks-so it's a great time to be part of the journey. We're looking for someone who's passionate about data, thrives on technical analysis, and takes pride in delivering high-quality solutions that support business strategy and decision-making. What will my working week look like? You will be homebased, living within the North West, within a reasonable travelling distance of our Head Office in Warrington, to attend meetings and training courses when needed.
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Data Engineer – Proven Experience in Energy Sector, Smart Infrastructure & Industrial Automation Required
Data Engineer – Proven Experience in Energy Sector, Smart Infrastructure & Industrial Automation Required
GE Vernova
UK
Competitive
Job Description Summary - We are seeking a results-driven Data Engineer to join our Grid Innovation team. This role focuses on designing, building, and maintaining the infrastructure and data pipelines that enable effective data collection, processing, storage, and analysis for cutting-edge AI/ML applications in the energy domain. Experience in the energy sector, smart infrastructure, or industrial automation is fundamental, as this role supports AI-driven innovation in mission-critical systems with high regulatory and operational complexity. As part of the CTO organization, reporting to the AI Leader, you will work closely with Grid Automation (GA) product lines, R&D teams, product management, and other GA functions. You will also support cross-functional initiatives by developing scalable and unified data frameworks to address critical customer problems and enable r
Job Description Summary - We are seeking a results-driven Data Engineer to join our Grid Innovation team. This role focuses on designing, building, and maintaining the infrastructure and data pipelines that enable effective data collection, processing, storage, and analysis for cutting-edge AI/ML applications in the energy domain. Experience in the energy sector, smart infrastructure, or industrial automation is fundamental, as this role supports AI-driven innovation in mission-critical systems with high regulatory and operational complexity. As part of the CTO organization, reporting to the AI Leader, you will work closely with Grid Automation (GA) product lines, R&D teams, product management, and other GA functions. You will also support cross-functional initiatives by developing scalable and unified data frameworks to address critical customer problems and enable r
Fitch GroupInformation Services - United Kingdom , LondonApply Now - Fitch Group is currently seeking a Senior Software Developer Emp. Experience and Risk Technology based out of our London office. As a leading, global financial information services provider, Fitch Group delivers vital credit and risk insights, robust data, and dynamic tools to champion more efficient, transparent financial markets. With over 100 years of experience and colleagues in over 30 countries, Fitch Groups culture of credibility, independence, and transparency is embedded throughout its structure, which includes Fitch Ratings, one of the worlds top three credit ratings agencies, and Fitch Solutions, a leading provider of insights, data and analytics. With dual headquarters in London and New York, Fitch Group is owned by Hearst.
Fitch GroupInformation Services - United Kingdom , LondonApply Now - Fitch Group is currently seeking a Senior Software Developer Emp. Experience and Risk Technology based out of our London office. As a leading, global financial information services provider, Fitch Group delivers vital credit and risk insights, robust data, and dynamic tools to champion more efficient, transparent financial markets. With over 100 years of experience and colleagues in over 30 countries, Fitch Groups culture of credibility, independence, and transparency is embedded throughout its structure, which includes Fitch Ratings, one of the worlds top three credit ratings agencies, and Fitch Solutions, a leading provider of insights, data and analytics. With dual headquarters in London and New York, Fitch Group is owned by Hearst.
Golang or Erlang Software Engineer (Junior, Senior & Lead Opportunities Available) Hybrid North West & Midlands | Remote Options Available Are you passionate about building robust APIs and scalable microservices? We're hiring backend engineers to work on a modern platform powering large-scale systems. Whether you're experienced in Golang or Erlang, or coming from another backend language (C#, Java, Python, TypeScript) and want to make the move, this is a chance to join a high-performing engineering team solving real-world problems at scale. Our systems are built around a microservices architecture, driven by performance, reliability, and clean service-to-service communication. You'll help design, develop, and optimise APIs that are integral to the platforms continued growth and evolution. What Youll Be Doing: Designing and developing high-performance RESTful and ...
Golang or Erlang Software Engineer (Junior, Senior & Lead Opportunities Available) Hybrid North West & Midlands | Remote Options Available Are you passionate about building robust APIs and scalable microservices? We're hiring backend engineers to work on a modern platform powering large-scale systems. Whether you're experienced in Golang or Erlang, or coming from another backend language (C#, Java, Python, TypeScript) and want to make the move, this is a chance to join a high-performing engineering team solving real-world problems at scale. Our systems are built around a microservices architecture, driven by performance, reliability, and clean service-to-service communication. You'll help design, develop, and optimise APIs that are integral to the platforms continued growth and evolution. What Youll Be Doing: Designing and developing high-performance RESTful and ...