1 to 25 of 26 Permanent API Development Jobs in Bristol

Please note: This is a CONTRACT Opportunity About the Role Our client is on a mission to build a cutting-edge API management platform in AWS, and they need a Senior Integration Engineer to drive this initiative forward. This role is crucial in designing, implementing, and optimizing integrations across … ecosystem, ensuring seamless connectivity, security, and efficiency. If you thrive in cloud-native environments , have deep expertise in AWS services , and are passionate about API architecture and integrations , we’d love to hear from you! Key Responsibilities Architect and develop scalable, resilient, and secure integrations for our API management platform in AWS Design and implement API gateways, authentication mechanisms, and monitoring solutions Develop automation pipelines for API deployments and infrastructure management Collaborate with engineering teams to define best practices and governance for API lifecycle management Ensure compliance with security policies and standards, implementing robust More ❯

As part of an exciting and rapidly evolving area of the business, they are expanding their API Engineering team and seeking an Integrations Lead to help drive innovation and integration across their systems. Responsibilities: Design and develop scalable, efficient API features while ensuring best practices in security, architecture … and data governance. Collaborate with technical and non-technical stakeholders to align development with business and technology strategies. Participate in code reviews and continuously identify opportunities for enhancement and innovation. Drive agile development by prioritising and refining the product backlog with key stakeholders. Establish and maintain best practices … development workflows, and team standards. Develop and maintain platform designs, process documentation, and solution overviews. Coaching and providing technical direction to more junior members of the team. Skills & Experience: Enterprise API Development - Experience building API Gateway solutions using REST or GraphQL. Database Technologies - Strong experience with More ❯

that power real-world applications at scale. What You'll Do: Build scalable applications using C# and .NET Core/.NET 6/7. API Development - Design and maintain RESTful and GraphQL APIs. Work with SQL Server, PostgreSQL, or NoSQL solutions (MongoDB, Redis). Deploy and maintain applications … Docker & Kubernetes. Work closely with front-end developers, DevOps engineers, and product teams. What We're Looking For: 3+ years experience in back-end development with .NET (C#). Strong experience with .NET Core/.NET 6+ and Entity Framework. Expertise in SQL Server, PostgreSQL, or NoSQL databases. Familiarity … Developer, Software Developer, Software Engineer, Web Developer, Application Developer, Programmer, C# Developer, .Net Developer, C#, .Net, ASP.Net, .Net Core, MVC, Entity Framework, SQL, Restful API, Microsoft SQL In Technology Group Ltd is acting as an Employment Agency in relation to this vacancy. More ❯

Applications - Develop robust, scalable, and efficient web apps. Work Across the Stack - Frontend (React, Vue, or Angular) & Backend (Node.js, Python, Java, .NET). Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs. Deploy & Maintain - Use Docker, Kubernetes, AWS, or Azure for scalable deployments. Collaborate - Work More ❯

Applications - Develop robust, scalable, and efficient web apps. Work Across the Stack - Frontend (React, Vue, or Angular) & Backend (Node.js, Python, Java, .NET). Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs. Deploy & Maintain - Use Docker, Kubernetes, AWS, or Azure for scalable deployments. Collaborate - Work More ❯

Up to £65,000 dependent on experience HL are looking for a talented full stack Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking … CD processes. Cultivate strong working relationships within the squad and across the organization. Engage in working groups and communities of practice to support the development team. About You We encourage you to apply even if you don't meet every single requirement. If you're passionate about technology, eager … from you! Skills Professional experience with TypeScript, React and Node, Java, and with the use of IaC tools such as Terraform. Familiarity with product development for cloud environments such as AWS, Azure or GCP, and related technologies (e.g. Kubernetes, Docker and serverless). Experience with unit, integration, and end More ❯

legal professionals, and data specialists, to deliver efficient, scalable, and secure applications. You will have at least two years experience of working with applications, API’s along with a good understanding of both front-end and back-end development, ensuring seamless integration with existing systems and compliance with … industry standards. Skills and experience Proficiency in application development: Working knowledge of MS Power Platform with knowledge of legal applications (such as Visualfiles, Intapp, etc) an advantage Database management: Strong knowledge of SQL and Python API development and integrations: Expertise in creating and consuming RESTful APIs, and … DevOps, or similar tools for source control and team collaboration. Agile methodologies: Experience working in Agile/Scrum environments, with a focus on iterative development and continuous improvement. Security best practices: Knowledge of secure coding practices and compliance with data protection regulations (GDPR, ISO 27001, CE+). Problem-solving More ❯

client in the pensions and wealth management industry. They are looking for a skilled Senior Full Stack PHP Developer to join their team. Responsibilities: Development and maintenance of software solutions. Essential skills: Strong PHP and Laravel skills. Strong experience with React, NodeJS backend, Node Package Manager (NPM). Docker … containerisation. Writing and maintaining Unit Tests - experience with PHPUnit, Jest or similar. API Development - including RESTful APIs. Automated testing tools - including Selenium, Cypress, Postman. SQL - coding and management with various SQL dialects including SQL, MSSQL, MySQL, PostgreSQL etc. Azure Cloud Services. Additional programming languages - e.g. Python, C#, or … GitHub actions. ELK stack, Prometheus, or Grafana. Benefits: Annual bonus scheme. 25 days holiday plus bank holidays. Life Insurance. Healthcare benefits. Flexible working. Continuous development opportunities - training, support, and mentoring. This is an urgent vacancy so please apply if you are interested quoting reference 102842. If you are interested More ❯

evolve your team practises and processes. Essential Qualifications/skills/experience: Passionate about changing lives with assistive technology. 5+ years of professional software development experience in modern C#. Knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. Excellent understanding of software design … principles. Confident and experienced with automated testing – from unit tests to system and integration tests. REST API development using C# and ASP.NET Core. Experience developing, deploying and maintaining APIs in AWS/Azure - including use of load balancers, SQL/NoSQL data stores and caches. Understanding of REST … API principles and best practices including API versioning, authentication/authorization models and techniques, and secret management. Familiarity with Entity Framework or other ORM tools. Experience in applying OWASP secure coding practices. Confident applying cloud best-practices for identity and access management, hosting, deployment and monitoring. Confident working More ❯

evolve your team practises and processes. Essential Qualifications/skills/experience: Passionate about changing lives with assistive technology. 5+ years of professional software development experience in modern C#. Knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. Excellent understanding of software design … principles. Confident and experienced with automated testing - from unit tests to system and integration tests. REST API development using C# and ASP.NET Core. Experience developing, deploying and maintaining APIs in AWS/Azure - including use of load balancers, SQL/NoSQL data stores and caches. Understanding of REST … API principles and best practices including API versioning, authentication/authorization models and techniques, and secret management. Familiarity with Entity Framework or other ORM tools. Experience in applying OWASP secure coding practices. Confident applying cloud best-practices for identity and access management, hosting, deployment and monitoring. Confident working More ❯

Level). 🎯 Impact | Technology Transformation, Modernization, and Scalability. 📏 Size | Medium-sized team, part of an exciting in-house engineering transformation. 🌟 Skills | PHP (Laravel), JQuery, API Development, MySQL, SOLID Principles, and modern DevOps tools. 📍 Location | London, UK/Remote - You must be eligible to work in UK 💻 Hybrid | Flexible … opportunity to make a real impact within a fast-growing fintech company undergoing an exciting technology transformation? As part of a motivated and collaborative development team, you’ll play a pivotal role in enhancing and modernizing the company’s tech stack. This involves building a robust backend API … points if you have worked with DevOps practices or modern tools like Docker or Kubernetes . Role Responsibilities: • Develop and maintain a robust backend API using PHP Laravel. • Enhance the platform with innovative new features that align with the product roadmap. • Seamlessly integrate third-party APIs into the system. More ❯

across various platforms. We are looking for a highly skilled and experienced Senior Full-Stack Developer to join our team and contribute to the development and maintenance of our web applications, integrations and future tech. Project Tech Stack Overview: Our current ecosystem involves a diverse range of technologies across … clean, maintainable, and efficient code following best practices. Troubleshoot, debug, and upgrade existing software. Participate in code reviews and contribute to a high-quality development culture. Stay up-to-date with emerging technologies and propose improvements to our existing stack and processes. Required Skills and Experience: Proven experience as … Cloud Platform Experience: Familiarity with platforms like Digital Ocean and/or AWS. Version Control: Proficient with Git and platforms like GitHub/GitLab. API Development: Experience in designing and consuming RESTful APIs and/or GraphQL. Excellent problem-solving skills and attention to detail. Strong communication and More ❯

across various platforms. We are looking for a highly skilled and experienced Senior Full-Stack Developer to join our team and contribute to the development and maintenance of our web applications, integrations and future tech. Project Tech Stack Overview: Our current ecosystem involves a diverse range of technologies across … clean, maintainable, and efficient code following best practices. Troubleshoot, debug, and upgrade existing software. Participate in code reviews and contribute to a high-quality development culture. Stay up-to-date with emerging technologies and propose improvements to our existing stack and processes. Required Skills and Experience: Proven experience as … Cloud Platform Experience: Familiarity with platforms like Digital Ocean and/or AWS. Version Control: Proficient with Git and platforms like GitHub/GitLab. API Development: Experience in designing and consuming RESTful APIs and/or GraphQL. Excellent problem-solving skills and attention to detail. Strong communication and More ❯

developing, and maintaining data infrastructure to ensure the seamless inflow, data sanitation/consolidation and automated report production for clients. Key Responsibilities: Design and Development: Design, develop, and maintain scalable ETL pipelines to process and integrate data from various sources. Implement data validation routines to ensure data quality and … understand data requirements. Database Management: Design and maintain relational database schemas to support business needs. Ensure efficient storage, retrieval, and management of large datasets. API Management: Develop and maintain APIs for data access and integration. Utilize tools like Postman for API testing and documentation. A good understanding of … working with APIs: Ensure robust and efficient API integration and management. Data bricks Management: Manage permissions and access controls within Databricks to ensure data security and compliance Data Analytics and Reporting: Work with data analysts to provide clean and well-structured data for analysis. Develop and maintain documentation for More ❯

and FastAPI, though experience with other frameworks is valuable), cloud services (particularly AWS), and modern AI approaches including working with agentic architecture. Key ResponsibilitiesBackend Development & Architecture · Design and implement scalable backend services using Python, with experience in Django, FastAPI, or similar frameworks · Architect and maintain production-grade, multi-tenant … Implement data validation, transformation, and enrichment processes · Optimise data storage and retrieval for AI/ML workloads Security & Compliance · Implement security best practices in API development and backend systems · Design secure authentication and authorisation mechanisms · Ensure compliance with relevant regulations for pharmaceutical data · Conduct security reviews and implement … and technical roadmap planning · Work cross-functionally with data scientists and product managers Qualifications and SkillsRequired Skills and Experience · 5+ years of Python backend development experience · Proficiency with Django, FastAPI, or similar Python web frameworks · Experience building and maintaining production-scale, multi-tenant applications · Strong knowledge of cloud services More ❯

APIs for 3rd party integrations. The ideal candidate will have substantial expertise in working with Node, ideally in an AWS serverless environment. Responsibilities: Backend Development: Design, develop, and maintain serverless systems in Node on AWS. Utilize AWS services such as Lambda, DynamoDB, S3, ECS, ECR for efficient data processing. … Develop and maintain Docker containers for data processing. Integration and Deployment: 3rd party API development Work on systems using AWS ECS and ECR for deployment. Implement and optimize CI/CD pipelines for efficient deployment processes. Monitoring and Logging: Implement and maintain monitoring solutions using CloudWatch. Utilize EventBridge … flexibility of working from anywhere. Comprehensive health insurance coverage for you and your family. Plan: Secure your future with our contributory pension scheme. and Development: Continuous learning opportunities to enhance your skills. Balance: Flexible working hours to support your work-life balance. Leave: 25 days paid (plus Bank Holidays More ❯

Beam etc. DBT Snowflake Infrastructure Skills Terraform Devops Skills Experienced in developing CI/CD pipelines Integration Skills REST and Graph APIs (Desirable) Serverless API development ( e.g. Lambda, Cloud Functions etc.) (Desirable) Why Us? Here at HL, we're the UK's number 1 investment platform for private More ❯

now looking for an experienced Backend Developer with a focus on Data. The deal candidate will have a strong technical background in enterprise integration development, particularly with Azure Service Bus, Function Apps, and Logic Apps, as well as experience working on data migration projects. If you are interested in … enterprise systems Expertise in Azure Service Bus, including queues, topics, and relays Strong knowledge of Microsoft technologies, including Azure and SQL Server Experience with API development and management, particularly REST and SOAP Benefits: 💰Salary: Available upon request 📍Location: Bristol (Once a week onsite) 🏥Private healthcare 🌴28 days holiday … + bank holiday 🪙Company pension scheme 📈Autonomous position with huge development opportunities More ❯

and cloud-based projects with a strong emphasis on solution design and technical leadership. Role & Responsibilities: Lead delivery of key projects across cloud migration, API development, digital platforms, and system integration Work within value streams and Centres of Excellence, aligning project goals with business strategy Act as a More ❯

for a SIEM Engineer to continue developing their expertise in security platforms at an established Microsoft Partner. The company places strong emphasis on staff development, offering support for training and professional certifications. You’ll also gain exposure to cutting-edge technologies, working across security operations and cyberspace. This is … Roles & Responsibilities Create, maintain, and optimise Logic Apps and Sentinel playbooks to automate incident detection and response workflows in Microsoft Sentinel. Develop and implement API integrations between Microsoft Sentinel and other systems to enhance data collection, cross-system communication, and automation. Leverage APIs to streamline security operations and increase … workflows, and incident response processes within Microsoft Sentinel. Experience in building and maintaining workflows with Azure Logic Apps to automate processes. Strong experience in API development and integration. Proficiency in KQL, JSON, and PowerShell. Good written and verbal communication skills. Technical understanding of IT infrastructure – Microsoft 365 suite More ❯

implementation and improving the overall quality of these key growth drivers. Key Skills: Proficient in React Experience in Ruby environments. Experience with GraphQL for API development and integration. Solid understanding of HTML, CSS, and JavaScript standards. Knowledge of testing frameworks (e.g., Jest, React Testing Library) is a plus. More ❯

to drive efficiency. Ensure data security and compliance with GDPR and industry regulations. What We’re Looking For 4+ years of experience in Python development (Flask, Django). Strong expertise in AWS cloud environments (EC2, S3, RDS, Redshift, Athena). Experience with SQL databases (PostgreSQL, SQLAlchemy). Knowledge of … ETL pipelines, API development, and front-end technologies (HTML, CSS). Experience with Infrastructure as Code tools (Terraform, Pulumi). Why Join? Be part of a fast-growing renewable energy company driving sustainable solutions. Work on cutting-edge data and cloud projects in a dynamic team. A culture More ❯

to drive efficiency. Ensure data security and compliance with GDPR and industry regulations. What We’re Looking For 4+ years of experience in Python development (Flask, Django). Strong expertise in AWS cloud environments (EC2, S3, RDS, Redshift, Athena). Experience with SQL databases (PostgreSQL, SQLAlchemy). Knowledge of … ETL pipelines, API development, and front-end technologies (HTML, CSS). Experience with Infrastructure as Code tools (Terraform, Pulumi). Why Join? Be part of a fast-growing renewable energy company driving sustainable solutions. Work on cutting-edge data and cloud projects in a dynamic team. A culture More ❯

We are seeking a skilled Mid-Level Back-End Engineer to join our growing development team. You will work on a system that utilizes PHP Symfony-based logic and communicates via REST APIs. This role is ideal for a motivated developer with a strong understanding of back-end development … HTML5 SQL PHP Javascript NodeJS Git Symfony/Laravel Good to know: GraphQL Docker Vue.js Python Experience: 3+ years of experience in back-end development, with a focus on PHP and Symfony framework. Strong understanding of REST API design and development. Experience working with databases such as MySQL … . Health & Wellness: Private health insurance with Confido or monthly sports compensation with Stebby. Sick Leave: Paid sick leave from the 2nd day. Learning & Development: Generous learning & development package (personal development plan & trainings, company-wide knowledge sharing & trainings). Working Environment: A comfortable workspace in the city More ❯

Interim API Developer | Hybrid or Remote | 3 Month Contract | Global Facilities Organisation We're working with a rapidly growing global facilities management business undertaking a large-scale digital transformation — moving from a patchwork of heavily customised on-prem systems to a modern cloud environment. The Situation Phase 1 of … the integration has been delivered by a third-party integrator, but Phase 2 is stalling. The business needs an experienced, independent API Developer to step in immediately, take the reins, and deliver point-to-point integrations between multiple systems. What’s In Place Legacy ERP, payroll, ops, and task … on the journey of the "what", "how", and "why". Must Haves Independent mindset — able to deliver under your own steam Strong experience building API integrations end-to-end Able to work across systems, define and advise on best approaches Comfortable working across business teams and tech stakeholders Integration More ❯