1 to 25 of 418 API Development Jobs in the UK

Senior Fullstack Developer 50-55k + benefits React, ReactJS, Rest API Development, Node, C#, TypeScript Birmingham - Hybrid Working (1 day/week in-office) Salary: Competitive, dependent on experience, with top-notch employee benefits Join a leading organisation based in Birmingham, West Midlands, offering a fantastic opportunity for a Senior Fullstack Developer with solid experience in RESTful … API development . As a Senior Developer, you will be instrumental in constructing high quality features into their software suite featuring advanced UI functionalities. We seek Fullstack Developers who consider themselves experts in crafting high-quality features for bespoke, world-leading technology organisations. Key Skills for this Fullstack Developer role include: Experience in RESTful API development … Strong expertise in HTML 5, CSS UI Design capabilities Familiarity with AGILE, CI/CD, and DevOps working environments The ideal candidate will possess 5 years plus of commercial development experience in web development, demonstrating a proven ability to deliver highly functional and visually stunning applications and websites. This role offers an excellent career path within a forward More ❯

as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Responsibilities: Design, develop, and maintain scalable APIs and … decisions, and system documentation. Stay current with best practices and emerging technologies in software engineering and data systems. Skills & Experience: You will have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API More ❯

as a specialist consultant, working on a wide array of complex projects across multiple industries. The Role: We are looking for a Software Engineer with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Responsibilities: Design, develop, and maintain scalable APIs and … decisions, and system documentation. Stay current with best practices and emerging technologies in software engineering and data systems. Skills & Experience: You will have the following skills or proven experience: API Development: Proven experience designing and building RESTful APIs and services at scale. Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). Familiarity with API More ❯

We are looking for Software Engineers with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Core Responsibilities: •Design, develop, and maintain scalable APIs … approach to diagnosing and resolving issues. •Detail-oriented with a mindset geared toward continuous improvement. •Able to prioritize and manage multiple projects simultaneously in a dynamic environment. Technical Skills: • API Development: •Proven experience designing and building RESTful APIs and services at scale. •Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). •Familiarity with API More ❯

We are looking for Software Engineers with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Core Responsibilities: •Design, develop, and maintain scalable APIs … approach to diagnosing and resolving issues. •Detail-oriented with a mindset geared toward continuous improvement. •Able to prioritize and manage multiple projects simultaneously in a dynamic environment. Technical Skills: • API Development: •Proven experience designing and building RESTful APIs and services at scale. •Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). •Familiarity with API More ❯

We are looking for Software Engineers with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Core Responsibilities: •Design, develop, and maintain scalable APIs … approach to diagnosing and resolving issues. •Detail-oriented with a mindset geared toward continuous improvement. •Able to prioritize and manage multiple projects simultaneously in a dynamic environment. Technical Skills: • API Development: •Proven experience designing and building RESTful APIs and services at scale. •Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). •Familiarity with API More ❯

We are looking for Software Engineers with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Core Responsibilities: •Design, develop, and maintain scalable APIs … approach to diagnosing and resolving issues. •Detail-oriented with a mindset geared toward continuous improvement. •Able to prioritize and manage multiple projects simultaneously in a dynamic environment. Technical Skills: • API Development: •Proven experience designing and building RESTful APIs and services at scale. •Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). •Familiarity with API More ❯

We are looking for Software Engineers with a strong foundation in API development and C# to join our data engineering team in a highly regulated industry. In this role, you’ll be instrumental in designing and building scalable, secure software systems that support seamless data movement between internal systems, third-party platforms, and cloud services. Your core focus … strict regulatory standards. We’re seeking candidates with over 5 years of relevant experience, a solid understanding of software system design, and a strong command of C# and modern API development patterns. A background in working with data systems, cloud integrations, and secure, large-scale applications will be highly advantageous. Core Responsibilities: •Design, develop, and maintain scalable APIs … approach to diagnosing and resolving issues. •Detail-oriented with a mindset geared toward continuous improvement. •Able to prioritize and manage multiple projects simultaneously in a dynamic environment. Technical Skills: • API Development: •Proven experience designing and building RESTful APIs and services at scale. •Experience with authentication, authorization, and secure API communication (OAuth2, JWT, etc.). •Familiarity with API More ❯

Software Engineer (API Development/Backend Node.js, C#) Birmingham, West Midlands (Hybrid 1 day onsite a week) £50-55k + Benefits Were partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. Theyre looking for a Software Engineer with strong API and backend development experience to work on complex, high … CD. Optimise performance, security, and maintainability of backend services. Support occasional front-end integration using React (desirable, not essential). Skills & Experience 4+ years commercial experience in backend/API development. Strong expertise in Node.js and C#. Solid understanding of REST API design and implementation. Experience with cloud computing and CI/CD pipelines. Knowledge of automated testing … communication skills. Join a forward-thinking Software engineering team focused on quality and innovation, where you will work on high-impact enterprise software projects. Keywords : Software Developer, Backend Developer, API development, Rest Api, Node.js, C#.React, Birmingham, West Midlands To apply, please send your CV to Bethany at or call 0161 438 1177 for more details. Follow us More ❯

will be responsible for designing, developing, and maintaining robust, scalable, and secure server-side solutions for PRAs web, mobile and CRM applications. You will play a key role in API development and integration, supporting key platforms and product channels, and collaborating with cross-functional teams to deliver high-quality digital products. Main Duties and Responsibilities Back-End Development … readiness and compliance. Collaboration & Agile Delivery Work closely with Product Owners, Business Analysts, Developers, and Testers to deliver integrated features. Participate in sprint ceremonies, technical reviews, and cross-functional development teams. Contribute to BAU transition planning and documentation for mobile and web platforms. Continuous Improvement Stay abreast of best practices, modern technologies, and technical approaches to back-end and … backlog and DevOps readiness. Participate in environment setup and device matrix testing for mobile app back-end support. Experience and Qualifications 3+ years of professional experience in back-end development (C#, .NET, API development). Experience supporting mobile app back-end (API integration, secure data handling, payments, authentication). Solid understanding of OOP, design principles, and More ❯

be responsible for designing, developing, and maintaining robust, scalable, and secure server-side solutions for PRA’s web, mobile and CRM applications. You will play a key role in API development and integration, supporting key platforms and product channels, and collaborating with cross-functional teams to deliver high-quality digital products. Main Duties and Responsibilities Back-End Development … readiness and compliance. Collaboration & Agile Delivery Work closely with Product Owners, Business Analysts, Developers, and Testers to deliver integrated features. Participate in sprint ceremonies, technical reviews, and cross-functional development teams. Contribute to BAU transition planning and documentation for mobile and web platforms. Continuous Improvement Stay abreast of best practices, modern technologies, and technical approaches to back-end and … backlog and DevOps readiness. Participate in environment setup and device matrix testing for mobile app back-end support. Experience and Qualifications 3+ years of professional experience in back-end development (C#, .NET, API development). Experience supporting mobile app back-end (API integration, secure data handling, payments, authentication). Solid understanding of OOP, design principles, and More ❯

API Engineer Who are we? At Bright, we've engineered cutting-edge software for accounting, payroll, tax, and practice management. We've assembled a team of top talent and stand ready to lead the industry with our superior software solutions and unparalleled customer support. We're brilliant people creating brilliant software! Join us in our mission to create brilliant … their payroll, accounts and HR practices. We take the headache out of business management and provide cost effective, real solutions to accountants and business owners. The Role: As an API Engineer at Bright, you'll be building API infrastructure that enables our product, third party integrations, our users and AI services to interact with our established product portfolio. … to-end accounting workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers. You'll design and implement the API infrastructure that enables our product, third party integrations, our users and AI services to interact with our established product portfolio. Working with autonomy and technical ownership, you'll architect More ❯

C# Developer - .NetCore, C# C# .NET Developer to write clean reliable code. Core Web API development needed for an excellent, fast paced, innovative tech driven client. Working on real-time payment software you will be working on exciting tech electric vehicle software and joining a small professional, highly talented SW dev team. Expertise in C# .NET. It would … microservices, DevOps working in a clopud AWS environment with exposure to Kubernetes, CI/CD, Containerisation, pipelines, deployment. Writing functioning code, crafting solutions, with the following tech stack: C# development .NET Core Web API development ORM - Linq2DB, Entity framework Core .Net5 Docker, CI/CD Git Agile Coding and programming in C# and .NetCore, .Net5+ developing new … existing systems which are web, microservices. You will be involved writing Nuget packages, developing unit and integration tests, performing code reviews, and debugging systems! Working in an Agile software development environment, working with CI/CD pipeline tech, ORM Technologies, Docker composer, Kubernetes, and cloud AWS/Azure. This an excellent opportunity for someone who has a drive for More ❯

edge AI and data-driven applications. Be part of an innovative and collaborative new team. Gain continuous learning and career growth opportunities. Competitive compensation and benefits package. AI & Software Development Design, develop, and maintain AI-powered applications using .NET, C#, Python, and Azure cloud technologies. Build scalable, maintainable, and high-performance AI solutions for enterprise integration. AI Solution Integration … Integrate AI services and frameworks to enhance applications with automation, analytics, and advanced decision-making. Develop smart applications using Azure Open AI, Cognitive Services, and AI-driven APIs. API Development & Cloud Solutions Develop secure, efficient, and scalable RESTful APIs for AI and enterprise applications. Deploy and manage AI/data solutions using Azure Open AI, Azure Kubernetes Service … the following skills and experience: Strong communication and problem-solving skills. Proficiency in C#, .NET, or Python for AI-driven solutions and automation. Experience in AI solution integration and API development (REST, GraphQL). Hands-on experience with Azure cloud services, including Azure OpenAI, AKS, and Azure Container Apps. Strong knowledge of SQL and NoSQL databases (Azure Cosmos More ❯

of engineers dedicated to developing AI-powered search and Retrieval-Augmented Generation (RAG) pipelines within DataStax-based architecture. This role is perfect for someone with expertise in Open-source, API development, fine-tuning LLMs, and integrating AI into scalable applications. If you thrive in an AI-driven development environment, enjoy working on cutting-edge retrieval models, and … specific performance. Optimize embedding models for better semantic search and document retrieval. Integrate AI-driven solutions with vector databases such as DataStax Astra DB, Weaviate, or FAISS. Implement secure API authentication (OAuth2, JWT) and manage access controls. Collaborate with AI/ML, data engineering, and DevOps teams to ensure seamless system integration. Monitor API performance and AI search … efficiency, implementing optimizations where necessary. Stay up to date with advancements in LLM fine-tuning, RAG methodologies, and vector search techniques. Essential Skills & Experience: Programming: Strong proficiency in Opensource. API Development: Experience with FastAPI, Flask (Python) OR Express.js for microservices. RAG Development: Hands-on experience building retrieval-augmented AI search solutions. LLM Fine-Tuning: Experience fine-tuning More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang experience and with some experience of TypeScript and React frontend development . If you also have a knack for Kubernetes/containerisation, that's a significant bonus! In this role, you'll be a key contributor to the development … We're excited to have you contribute to our mission! Responsibilities : As a Safe Intelligence Full Stack Software Engineer, you will: Engineering of Golang-based backend systems , focusing on API development and integration. Contribute significantly to software development on our TypeScript-based frontend systems , primarily utilizing React to craft intuitive and highly functional user interfaces. Productize and … dataset management, verification workflows, and result/metric aggregations. Collaborate closely with our scientific and technical teams to interface with and containerize our PyTorch-based verification toolkit. Champion an API-first development approach to deliver feature-rich, versioned interfaces that support both our TypeScript user interface and Python-based SDKs. Develop and maintain Infrastructure as Code (IaC) and More ❯

explore the next generation of intelligent applications. What you’ll be doing Build and deploy custom GenAI applications using modern cloud tech (AWS, Python, CI/CD). Own API development, database design, and infrastructure deployment via Terraform or CloudFormation. Collaborate with data science teams to integrate AI models and APIs (AWS Bedrock, LangGraph, Azure GPT, etc.). … . Work in agile sprints, joining daily stand-ups and planning sessions. What we’re looking for Git AWS services (including Terraform/Cloud Formation) CI/CD pipelines API development in Python SQL and NoSQL databases Docker containers Some familiarity (e.g. awareness and has used them before) with Generative AI tools e.g. AWS Bedrock, Strands, LangGraph, Azure More ❯

Senior API Engineer - AI Integration Team Who are we? At Bright, we've engineered cutting-edge software for accounting, payroll, tax, and practice management. We've assembled a team of top talent and stand ready to lead the industry with our superior software solutions and unparalleled customer support. We're brilliant people creating brilliant software! Join us in our … payroll, accounts and HR practices. We take the headache out of business management and provide cost effective, real solutions to accountants and business owners. The Role: As a Senior API Engineer at Bright, you'll be building API infrastructure that enables our product, third party integrations, our users and AI services to interact with our established product portfolio. … to-end accounting workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers. You'll design and implement the API infrastructure that enables our product, third party integrations, our users and AI services to interact with our established product portfolio. Working with autonomy and technical ownership, you'll architect More ❯

to develop our data and MLOps capability infrastructure What you will bring to the role: • Strong experience in software engineering with proficiency in a language such as Python for API development, Data engineering, and automation tasks • A background in working with storage solutions such as PostgreSQL, MySQL, and BigQuery • Experience in API development using tools such More ❯

to develop our data and MLOps capability infrastructure What you will bring to the role: • Strong experience in software engineering with proficiency in a language such as Python for API development, Data engineering, and automation tasks • A background in working with storage solutions such as PostgreSQL, MySQL, and BigQuery • Experience in API development using tools such More ❯

to develop our data and MLOps capability infrastructure What you will bring to the role: • Strong experience in software engineering with proficiency in a language such as Python for API development, Data engineering, and automation tasks • A background in working with storage solutions such as PostgreSQL, MySQL, and BigQuery • Experience in API development using tools such More ❯