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12 Contract API jobs in Northampton + 20 miles
393 exact matches jobs are outside your preferred location
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83zero is proud to partner with a high-growth startup that's redefining the B2B2C social media space. They're building a next-generation Platform-as-a-Service already making waves across global media ecosystems - and now they need a DevOps Leader to help scale it to the next level. Why This Role? This isn't just another leadership position. You'll own the technical vision for a serverless, event-driven, globally distributed platform on AWS. You'll lead a talented, distributed engineering team, shape high-performance APIs, and build systems that scale fast and run clean. What's On Offer * Competitive salary + performance bonus * Meaningful equity - build it, own it, grow with it * Hybrid/remote-first working culture * A seat at the decision-making table in a fast-scaling SaaS business * Real autonomy, rapid progression, and zero bureaucracy
83zero is proud to partner with a high-growth startup that's redefining the B2B2C social media space. They're building a next-generation Platform-as-a-Service already making waves across global media ecosystems - and now they need a DevOps Leader to help scale it to the next level. Why This Role? This isn't just another leadership position. You'll own the technical vision for a serverless, event-driven, globally distributed platform on AWS. You'll lead a talented, distributed engineering team, shape high-performance APIs, and build systems that scale fast and run clean. What's On Offer * Competitive salary + performance bonus * Meaningful equity - build it, own it, grow with it * Hybrid/remote-first working culture * A seat at the decision-making table in a fast-scaling SaaS business * Real autonomy, rapid progression, and zero bureaucracy
Salary: £52,265 to £73,927 DOE (FTE) plus £312 Office at Home Allowance - Hours 36 hours per Week - Closing Date5 December 2025 ** Drive Automation & AI to Transform Children's Lives ** About the Role - Are you ready to blend expert Microsoft Stack engineering with a mission that truly matters? Barnardo's is embarking on an ambitious, long-term Digital, Data, and Technology (DDaT) strategy focused on automation, integration, and AI. As a key Integration and Application Engineer, you will be pivotal in building the technical foundations that will dramatically improve our digital efficiency and help us transform the lives of vulnerable children and young people across the UK. This is a unique opportunity to use your deep expertise in Microsoft Dynamics 365 Finance & Operations (D365 F&O) and Azure Integration Services to deliver solutions with a tangible, positive socia
Salary: £52,265 to £73,927 DOE (FTE) plus £312 Office at Home Allowance - Hours 36 hours per Week - Closing Date5 December 2025 ** Drive Automation & AI to Transform Children's Lives ** About the Role - Are you ready to blend expert Microsoft Stack engineering with a mission that truly matters? Barnardo's is embarking on an ambitious, long-term Digital, Data, and Technology (DDaT) strategy focused on automation, integration, and AI. As a key Integration and Application Engineer, you will be pivotal in building the technical foundations that will dramatically improve our digital efficiency and help us transform the lives of vulnerable children and young people across the UK. This is a unique opportunity to use your deep expertise in Microsoft Dynamics 365 Finance & Operations (D365 F&O) and Azure Integration Services to deliver solutions with a tangible, positive socia
We are looking for Developers to build powerful solutions across Salesforce, SFI Insurance Cloud, and Omnistudio. Lead Salesforce & SFI Insurance Cloud implementations Build with OmniStudio (DataRaptor, FlexCards, OmniScript) Guide teams & work directly with clients Drive end-to-end solution design, delivery & integration 5+ yrs experience (Salesforce + SFI) Strong LWC, Apex, APIs, Agile background Insurance Cloud expertise (Quoting, Policy Admin, FNOL, Claims) Salesforce & SFI certifications Excellent communication + leadership skills If you're a tech leader ready to deliver innovative cloud solutions, we want to meet you!
We are looking for Developers to build powerful solutions across Salesforce, SFI Insurance Cloud, and Omnistudio. Lead Salesforce & SFI Insurance Cloud implementations Build with OmniStudio (DataRaptor, FlexCards, OmniScript) Guide teams & work directly with clients Drive end-to-end solution design, delivery & integration 5+ yrs experience (Salesforce + SFI) Strong LWC, Apex, APIs, Agile background Insurance Cloud expertise (Quoting, Policy Admin, FNOL, Claims) Salesforce & SFI certifications Excellent communication + leadership skills If you're a tech leader ready to deliver innovative cloud solutions, we want to meet you!
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Applications Support Engineer
Applications Support Engineer
Oscar Associates (UK) Limited
Loughborough (LE11)
£30000 - £40000 per annum
Application Support Analyst £30,000 - £40,000 + Bonus - Hybrid (2-3 Days Onsite) East Midlands - Are you someone who loves digging into complex systems, solving problems that others can't, and becoming the go-to expert for business-critical applications? If so - this is the next step you've been waiting for. We're working with a well-established, high-growth organisation that's investing heavily in their internal technology function. With new projects landing and a major upgrade roadmap ahead, the team is now looking for an Application Support Analyst who wants responsibility, progression, and the chance to truly own the platforms they support. What You'll Be Doing * Providing 2nd/3rd line support across key business applications * Investigating incidents, diagnosing root cause, and delivering permanent fixes * Working closely with vendors, product teams, and internal
Application Support Analyst £30,000 - £40,000 + Bonus - Hybrid (2-3 Days Onsite) East Midlands - Are you someone who loves digging into complex systems, solving problems that others can't, and becoming the go-to expert for business-critical applications? If so - this is the next step you've been waiting for. We're working with a well-established, high-growth organisation that's investing heavily in their internal technology function. With new projects landing and a major upgrade roadmap ahead, the team is now looking for an Application Support Analyst who wants responsibility, progression, and the chance to truly own the platforms they support. What You'll Be Doing * Providing 2nd/3rd line support across key business applications * Investigating incidents, diagnosing root cause, and delivering permanent fixes * Working closely with vendors, product teams, and internal
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Rate - £475 - £500 Outside IR35 - Duration - 3 months - Location - Fully remote - We're seeking a Business Central and Shopify Support Engineer to join a client of ours growing at a substantial rate! This role bridges ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for our business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integration's, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and i
Rate - £475 - £500 Outside IR35 - Duration - 3 months - Location - Fully remote - We're seeking a Business Central and Shopify Support Engineer to join a client of ours growing at a substantial rate! This role bridges ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for our business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integration's, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and i
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AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 - We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learnin
AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 - We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learnin
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Technically sharpAI Prompt Engineer - Youll design and optimize prompts, build LLM-powered applications, and deploy scalable GenAI solutions that connect people and intelligent systems in new ways. What Youll Do * Design, test, and refine prompts for leading LLMs (GPT-4/5, Claude, Gemini, Mistral, LLaMA, Cohere). * Experiment with advanced prompting techniques; Chain-of-Thought, ReAct, Tree-of-Thoughts, and more. * Deploy AI/ML pipelines using Azure ML, AWS SageMaker, Vertex AI, or Databricks. * Integrate LLMs into production apps using LangChain, LlamaIndex, and RAG architectures. * Build APIs and microservices for scalable AI deployment. * Use AI-powered dev tools like GitHub Copilot, Cursor, and Codeium to speed up iteration. * Apply MLOps/LLMOps practices with MLflow, Weights & Biases, and Kubeflow. Youll Bring
Technically sharpAI Prompt Engineer - Youll design and optimize prompts, build LLM-powered applications, and deploy scalable GenAI solutions that connect people and intelligent systems in new ways. What Youll Do * Design, test, and refine prompts for leading LLMs (GPT-4/5, Claude, Gemini, Mistral, LLaMA, Cohere). * Experiment with advanced prompting techniques; Chain-of-Thought, ReAct, Tree-of-Thoughts, and more. * Deploy AI/ML pipelines using Azure ML, AWS SageMaker, Vertex AI, or Databricks. * Integrate LLMs into production apps using LangChain, LlamaIndex, and RAG architectures. * Build APIs and microservices for scalable AI deployment. * Use AI-powered dev tools like GitHub Copilot, Cursor, and Codeium to speed up iteration. * Apply MLOps/LLMOps practices with MLflow, Weights & Biases, and Kubeflow. Youll Bring
Job Title: Customer Success Manager - Location: London, (Bishopsgate) - Hybrid (3 days WFH, 2 days on site) Salary: Up to £48,000 - As a Customer Success Manager, you'll be the bridge between clients and internal technical teams, ensuring seamless integration, onboarding, and long-term satisfaction. You'll manage integration support cases, monitor performance, and proactively resolve challenges to keep clients engaged and successful. This company are a global Ai focused consultancy shaping the future of their industry. They blend deep actuarial expertise with Ai to help their clients grow sustainably. With over a dozen offices across the EMEA and US offices, they champion diversity, collaboration, and are at the forefront of consumer-centric tech in their industry. They are making a real impact on their industry worldwide.
Job Title: Customer Success Manager - Location: London, (Bishopsgate) - Hybrid (3 days WFH, 2 days on site) Salary: Up to £48,000 - As a Customer Success Manager, you'll be the bridge between clients and internal technical teams, ensuring seamless integration, onboarding, and long-term satisfaction. You'll manage integration support cases, monitor performance, and proactively resolve challenges to keep clients engaged and successful. This company are a global Ai focused consultancy shaping the future of their industry. They blend deep actuarial expertise with Ai to help their clients grow sustainably. With over a dozen offices across the EMEA and US offices, they champion diversity, collaboration, and are at the forefront of consumer-centric tech in their industry. They are making a real impact on their industry worldwide.
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Senior Full Stack developer C# / React /Azure - Perm - hybrid
Senior Full Stack developer C# / React /Azure - Perm - hybrid
INFUSED SOLUTIONS LIMITED
Coventry (CV1)
£60000 - £70000 per annum
Full Stack Developer (C# / React / Azure) Location: Coventry - Hybrid (2 days onsite per week) Salary: £60,000 - £70,000 - Eligibility: Must be based in the UK - no visa sponsorship available - About the Company - Join a fast-moving digital team that's modernising enterprise systems and building next-generation web platforms from the ground up. This is a great opportunity to work on meaningful software projects, shape architecture decisions, and collaborate with a highly skilled engineering group in an environment that encourages innovation and autonomy. The Role - You'll be responsible for designing, developing, and deploying robust full-stack applications across cloud-based and containerised environments. From building APIs and crafting modern frontends to streamlining DevOps processes, you'll play a hands-on role in delivering reliable, scalable solutions that supp
Full Stack Developer (C# / React / Azure) Location: Coventry - Hybrid (2 days onsite per week) Salary: £60,000 - £70,000 - Eligibility: Must be based in the UK - no visa sponsorship available - About the Company - Join a fast-moving digital team that's modernising enterprise systems and building next-generation web platforms from the ground up. This is a great opportunity to work on meaningful software projects, shape architecture decisions, and collaborate with a highly skilled engineering group in an environment that encourages innovation and autonomy. The Role - You'll be responsible for designing, developing, and deploying robust full-stack applications across cloud-based and containerised environments. From building APIs and crafting modern frontends to streamlining DevOps processes, you'll play a hands-on role in delivering reliable, scalable solutions that supp
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Are you passionate about creating high-performing, flexible, and reusable web applications? Arms Digital Team is looking for a Full Stack Developer to join our Global Marketing group, helping build and evolve our flagship commercial websites. This is an exciting opportunity to give to high-visibility projects and craft special digital experiences that reach millions of users * Develop and maintain Arms key marketing websites and digital experiences * Translate visual designs and business requirements into clean, performant, and accessible web solutions * Follow Arms software development lifecycle and give to the roadmap for our frontend framework * Leverage AI tools to accelerate development and improve code quality * Collaborate with IT, architecture, security, legal, and external development partners
Are you passionate about creating high-performing, flexible, and reusable web applications? Arms Digital Team is looking for a Full Stack Developer to join our Global Marketing group, helping build and evolve our flagship commercial websites. This is an exciting opportunity to give to high-visibility projects and craft special digital experiences that reach millions of users * Develop and maintain Arms key marketing websites and digital experiences * Translate visual designs and business requirements into clean, performant, and accessible web solutions * Follow Arms software development lifecycle and give to the roadmap for our frontend framework * Leverage AI tools to accelerate development and improve code quality * Collaborate with IT, architecture, security, legal, and external development partners
The PE AI Transformation team is redefining how AI powers engineering at Arm! We partner with engineering teams across Arm to deliver real-world impact through applied AIboosting productivity, fueling innovation, and making powerful AI tools part of every engineers workflow. Guided by our visionengineering redefined through smarter workflows, faster execution, and greater creativitywere building systems that let technology amplify human potential. As an AI Engineer, youll be hands-on in designing, developing, and deploying AI capabilities that reshape how engineers work. Youll learn from experienced AI architects and senior engineers, gaining exposure to sophisticated system design and scaling patterns, while supplying your own technical depth to deliver robust, high-quality solutions. Youll also mentor junior peers and share practical insights gained through your wor
The PE AI Transformation team is redefining how AI powers engineering at Arm! We partner with engineering teams across Arm to deliver real-world impact through applied AIboosting productivity, fueling innovation, and making powerful AI tools part of every engineers workflow. Guided by our visionengineering redefined through smarter workflows, faster execution, and greater creativitywere building systems that let technology amplify human potential. As an AI Engineer, youll be hands-on in designing, developing, and deploying AI capabilities that reshape how engineers work. Youll learn from experienced AI architects and senior engineers, gaining exposure to sophisticated system design and scaling patterns, while supplying your own technical depth to deliver robust, high-quality solutions. Youll also mentor junior peers and share practical insights gained through your wor
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We're looking for an experienced Front-End Developer to join a fast-paced digital transformation project for a leading UK-based organisation in the manufacturing sector. This is an opportunity to make an immediate impact on a complex internal system used across multiple teams. You'll be joining at the latter stages of a large internal rebuild, helping optimise and refine an order processing platform that integrates data from over 40 different software tools. The ideal candidate will have a sharp eye for detail, a strong understanding of front-end best practices, and the ability to hit the ground running in a dynamic environment. * JavaScript (ES6+) * Vue.js * HTML5 / CSS3 * REST APIs & JSON * Enhance and streamline the user interface for an internal order processing system * Optimise workflows and improve system usability for internal teams
We're looking for an experienced Front-End Developer to join a fast-paced digital transformation project for a leading UK-based organisation in the manufacturing sector. This is an opportunity to make an immediate impact on a complex internal system used across multiple teams. You'll be joining at the latter stages of a large internal rebuild, helping optimise and refine an order processing platform that integrates data from over 40 different software tools. The ideal candidate will have a sharp eye for detail, a strong understanding of front-end best practices, and the ability to hit the ground running in a dynamic environment. * JavaScript (ES6+) * Vue.js * HTML5 / CSS3 * REST APIs & JSON * Enhance and streamline the user interface for an internal order processing system * Optimise workflows and improve system usability for internal teams
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The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
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Penetration Tester (Active SC Clearance)
Penetration Tester (Active SC Clearance)
Infoplus Technologies UK Ltd
Warwick (CV34)
From £350 to £400 per day
Experience working in API testing, Network technologies and cloud solutions
Experience working in API testing, Network technologies and cloud solutions
Hands on experience in API Management, integration of API with third party applications.
Hands on experience in API Management, integration of API with third party applications.
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
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Skilled in API development and microservices architecture
Skilled in API development and microservices architecture
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Lead QA Automation Engineer, C#, Home Based
Lead QA Automation Engineer, C#, Home Based
Fdo Consulting Limited
Lee Bank, Birmingham (B1), B1
£55000 - £68000 per annum + home based + benefits
Strong Automation, API, C#, and mentoring / management skills required. * UI and API Testing * Very strong API testing. * API testing - This is a great role for a candidate who has very strong C#, API testing and automation.
Strong Automation, API, C#, and mentoring / management skills required. * UI and API Testing * Very strong API testing. * API testing - This is a great role for a candidate who has very strong C#, API testing and automation.
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
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Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
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Cloud Engineer – Oracle Fusion & Cloud Infrastructure
Cloud Engineer – Oracle Fusion & Cloud Infrastructure
EFCI Group Ltd
Oxford (OX4)
From £60,000 to £70,000 per annum + £6500 travel allowance + 10% bonus
Familiarity with Oracle Integration Cloud (OIC) and API Gateway configurations.
Familiarity with Oracle Integration Cloud (OIC) and API Gateway configurations.
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Data exchange and processing skills (e.g. ETL, ESB, API...)
Data exchange and processing skills (e.g. ETL, ESB, API...)
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API development experience
API development experience
FEATURED
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED