176 to 200 of 278 Permanent API Development Jobs

join a multidisciplinary team of experts pushing the boundaries of innovation through cutting-edge AI solutions. As an AI Engineer, you will play a key role in the design, development, and integration of intelligent solutions leveraging technologies like GPT , Azure AI Services , and other state-of-the-art tools. You will work in co-creation with business and technical … and platforms Write clear and structured documentation of code, logic, and workflows Participate in code reviews, knowledge sharing, and best practice sessions Maintain a strong focus on DevOps practices , API development , and performance Stay on top of the latest developments in AI and machine learning through continuous learning and experimentation Educate technical and non-technical stakeholders on generative … related field Proven experience working on AI projects, particularly with OpenAI models and LLMs Hands-on knowledge of prompt engineering , agentic architectures , and OpenAI SDKs Experience in Python , RESTful API development , and cloud integration (Azure Functions, SQL databases, etc.) Familiarity with BI processes , ETL/ELT , and data-driven architecture Strong communication, analytical thinking, and problem-solving skills More ❯

Description Position: Software Architect - Expert Location: Northern VA Clearance: TS/SCI Overall Assignment Description: Expert-level Software Architects lead the design and development of software solutions for complex applications problems, API design, data services, platform services, cloud services and infrastructure services to meet user requirements and align to strategic goals and the Enterprise Architecture. The Expert-Level … coding standards, tools, and platforms. The Expert-level Software Architect provides technical and software engineering support towards a model-based systems engineering approach to IT requirements engineering and architecture development, targeted at the Enterprise, Segment, and Solution Engineering levels. This consists of developing and transforming the A gency IT EA framework, processes & tools to realize EA vision, and the … SaaS, PaaS, custom software, third party offerings, open source and other technology components. Ensure a loosely coupled architecture through the use and management of APIs (e.g., REST, OData, AWS API management tools, etc ) as well as microservices. Establish standards and guardrails for internal and external use. Provide architectural guidance to support Agile/DevSecOps software development solutions, modern More ❯

Solutions Architect (Integration | API Design)St Albans (Hybrid) Compensation: Salary +Bonus +Equity Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They're seeking a Solutions Architect to lead the end-to-end technical design of mission-critical platforms and services. The Role: We're seeking … disparate systems, and overseeing their seamless migration to a new, unified platform - ensuring zero downtime throughout. In addition, you'll lead the standardisation of tooling, practices, and documentation across development teams, establishing a single source of truth to drive consistency and quality in solution delivery. Key Responsibilities: Own and deliver end-to-end architecture across microservices, APIs, message buses … emerging technologies What We're Looking For: Proven experience in Solution Architecture or Solution Design, ideally in environments involving systems consolidation or major technology transformations Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP Ability to clearly document and present architecture decisions, trade-offs, and constraints to technical and More ❯

Solutions Architect (Integration | API Design) St Albans (Hybrid) Compensation: Salary +Bonus +Equity Method Resourcing are proud to be partnering with a fast-growing, international technology business delivering critical services across multiple high-reliability sectors. They're seeking a Solutions Architect to lead the end-to-end technical design of mission-critical platforms and services. The Role: We're seeking … disparate systems, and overseeing their seamless migration to a new, unified platform - ensuring zero downtime throughout. In addition, you'll lead the standardisation of tooling, practices, and documentation across development teams, establishing a single source of truth to drive consistency and quality in solution delivery. Key Responsibilities: Own and deliver end-to-end architecture across microservices, APIs, message buses … emerging technologies What We're Looking For: Proven experience in Solution Architecture or Solution Design, ideally in environments involving systems consolidation or major technology transformations Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP Ability to clearly document and present architecture decisions, trade-offs, and constraints to technical and More ❯

with a strong background in AI production-grade applications with strong experience with LLM models (e.g., GPT, Anthropic, and others). In this role, you will conduct research and development around AI, focusing on automating processes and development at StackOne. We're building a world where users of any SaaS can integrate with the tool of their choice … is what you will help achieve. Responsibilities Research, design, and develop AI models using or training existing or bespoke LLM models (and other AI tech) to improve and automate API & more generally SaaS interactions. Managing and updating Data pipelines used for AI use-cases. Collaborate with cross-functional teams to identify opportunities for AI integration and automation. Optimize and … models and applications for performance and scalability. Stay current with advancements in AI and LLM technologies, applying new knowledge to StackOne's AI strategy. Implement best practices in AI development, ensuring compliance with data privacy and security regulations. Document and communicate research findings and development progress to stakeholders. Collaborate with other software & AI engineer(s) to deliver larger More ❯

solutions. Stay updated with emerging technologies and trends in E-commerce. Ensure compliance with UK regulations (e.g., UK-GDPR, PCI-DSS). Required Experience & Skills: 10+ years in software development, with 3+ years in an architect or technical lead role. Proven experience designing scalable and secure transactional E-commerce websites. Strong knowledge of C#, Java, .NET, JavaScript, and frameworks … like AngularJS. Experience with API development (SOAP, RESTful) and databases (e.g., MS SQL Server, Oracle Endeca). Expertise in web performance optimization and secure development practices (OWASP). Knowledge of relational databases (e.g., MS SQL Server) and document-oriented databases (e.g., Oracle Endeca). More ❯

Lead a team of developers to design, develop, test, and release software solutions to support therequirements of the business. Lead initiatives which deliver modernisation of deployed technology,tools, and development processes. Responsibilities Maintain a skilled, and motivated team capable of delivering software solutions across a broad technologystack Design high quality software solutions which meet technical architecture and security standards … Develop robust and scalable software solutions Adhere and contribute to the evolution of development standards Ensure high quality and robust automated and manual tests are completed on all system changesprior to handing over to the System Test team Lead team initiatives to improve efficiency or reduce technical debt, reporting progress to the Head ofDevelopment as Sponsor Peer review code … accuracy and completeness, whilst ensuring that changesare both maintainable and supportable Assist the Delivery Managers and/or Project Managers during the programme and project planning process Continually review development and delivery activities to identify improvements to architecture, processes,services, performance metrics and infrastructure to increase efficiency, effectiveness, and customersatisfaction Provide expert second line support to 7IM's Application More ❯

Our client is on a mission to shape the future of AI. As they expand their development team, they are looking for a talented Full Stack Developer to help build outstanding features that customers love. About the Role: As a Full Stack Developer, you will be responsible for designing, developing, and maintaining applications using Next.js, Supabase, and TypeScript. You … high standards of quality and best practices. Troubleshoot and resolve issues, ensuring optimal performance and user experience. Stay updated with the latest industry trends and technologies to continuously improve development practices. Technical Requirements: Strong experience with Next.js and TypeScript. Proficiency in front-end technologies such as HTML, CSS, and JavaScript. Experience with API design and development, including … opportunities to share in our success Flexible working hours for work-life balance Clear career progression paths A diverse, inclusive environment that values autonomy Annual learning allowance for professional development ALL APPLICANTS MUST BE FREE TO WORK IN THE UK Exposed Solutions is acting as an employment agency to this client. Please note that no terminology in this advert More ❯

ll bring: Extensive experience with PHP and the Laravel framework . A strong understanding of object-oriented programming (OOP) principles. Proficiency with database technologies (e.g., MySQL). Experience with API development and integration. Knowledge of version control systems (e.g., Git). A problem-solving mindset and the ability to work independently and as part of a team. Excellent … a large user base. A hybrid working model offering excellent flexibility with a bias towards being home-based A collaborative and supportive team environment. Opportunities for professional growth and development . A competitive salary and benefits package. You must have full eligibility to work in the UK, as they are unfortunately unable to provide work permit sponsorship. If you More ❯

focal point, promoting best practices and enforcing architectural and coding standards. Qualifications: - BSc degree in Computer Science or equivalent practical experience. - At least 4+ years of server-side software development experience in languages such asPython, Java, Scala, or Go. - Experience withBig Datatechnologies likeSpark, Databricks,andAirflow. - Familiarity with cloud environments such asAWSor GCP and containerization technologies likeDockerandKubernetes. - Strong problem-solving … skills and ability to learn new technologies quickly. - Excellent communication skills and ability to work in a team-oriented environment. Nice to Have: - Familiarity with Microservices architecture and API development. - Knowledge of databases like Redis, PostgreSQL, and DWH (such as Redshift, Snowflake, etc.). We will handle your application and information related to your application in accordance with the … Python/Java/Scala/Go? Select Do you have experience with Big Data Technologies like Spark, Databricks,andAirflow? Do you have any experience with Microservices architecture and API development? If yes, please describe briefly. What are you salary expectations? Do you require visa sponsorship to work in the UK? Select More ❯

market as the first real-time credit bureau. We are a seed-stage startup with the mission to empower better lending with accurate, real-time credit data through modern, API-first solutions. As an FCA-authorised challenger credit reference agency, we're transforming how consumer credit information is reported and shared between lenders. About the Role: We’re seeking … an outcome-focused and principled Go engineer (junior to mid-level) to join our dynamic team. You will play a key role in designing, delivering, and operating API services on AWS with some React-like SaaS UX. As part of our small, collaborative, and highly productive engineering team, reporting to the CTO, you’ll have the opportunity to contribute … operation. Demonstrate high standards of quality, ownership, security, and taste. What We’re Looking For: 2+ years of commercial software engineering experience, with at least 2 years in Go API development, and 1 year in React or similar – we use Svelte. Experience with secure AWS infrastructure, containers, and distributed systems, e.g., Docker, PostgreSQL Aurora, Cognito, DynamoDB, ECS. Proficiency More ❯

focused full stack engineer, skilled in React and Go (junior to mid-level) to join our dynamic team. You will play a key role in designing, delivering, and operating API services on AWS with a clean React (Svelte) SaaS UX. As part of our small, collaborative, and highly productive engineering team, reporting to the CTO, you’ll have the … and architecture Demonstrate high standards of quality, ownership, security, and taste. What We’re Looking For: 1+ years of commercial software engineering, with at least 1 year in Go API development, and 1 year in React or similar – we use Svelte. Proficiency in modern CI/CD practices – we use GitHub Actions A passion for problem-solving and More ❯

Engineers, Product Teams, Designers, and QA professionals to create seamless experiences. Participate in Product Planning: From discovery to deployment, we value your input throughout all stages of the Software Development Lifecycle Develop and Enhance Features: Collaborate to develop robust new features, APIs, and continuously improve our industry-leading products. Help find and fix bugs at "Deel Speed." Provide an … Exceptional, Customer-Centric Experience: Ensure top-tier products and services through quality engineering and attentive, customer-focused development. What you'll bring to the Team: Expertise in Backend Development: Strong proficiency in Node.js, TypeScript/JavaScript best practices, along with experience in at least one other server-side language. Database Mastery: You're a SQL guru, particularly with PostgreSQL … scalability, ensuring they manage rapid growth and increasing demands efficiently. High-Volume Performance: Proven expertise in optimizing systems for large transaction volumes, handling concurrency, idempotency, and performance under load. API Development: Skilled in building APIs, including input validation, JWT tokens, and ensuring security & scalability through queue-based systems. Experience: at least 8 years of experience as a Software More ❯

up new horizons, our faith in its potential unveils a new outlook where, together, humans and machines build a new future filled with knowledge, inspiration, and incredible discoveries. The development of a functional humanoid robot underpins an era of abundance and well-being where poverty will disappear, and people will be able to choose what they want to do. … low-level language (e.g., C++, C, Bash) for developing robot-side services. Strong experience with React (or similar frameworks) for creating user-friendly and scalable web applications. Expertise in API development, data handling, and creating scalable service architectures. Proficiency with CI/CD pipelines, containerization (e.g., Docker, Kubernetes), and workflow automation. Understanding of network protocols and secure data More ❯

A leading global insurer are looking to hire a Software Engineer to focuss on API Implementation to join a well established team which is growing. The role will involve developing analytics solutions using leading tech stacks and cloud technologies (Azure, Snowflake, Databricks and Python). The Role Develop and maintain an API strategy aligned with business objectives, enhancing … current systems and integrating third-party APIs. Design and develop API architectures, set standards, and collaborate with stakeholders to integrate APIs with existing systems. Build integrations with both internal systems and external API providers. Document API development processes, code, and revisions using Confluence. Implement robust security protocols for APIs and coordinate with cybersecurity teams to address … threats. Continuously monitor API performance, troubleshoot issues, and manage regular updates and maintenance. Communicate with developers, IT teams, and business leaders to align API initiatives with business goals. Provide training and technical support on effective API usage to team members. Manage technical relationships and coordinate with third-party vendors. Research and stay current with trends and innovations More ❯

A leading global insurer are looking to hire a Software Engineer to focuss on API Implementation to join a well established team which is growing. The role will involve developing analytics solutions using leading tech stacks and cloud technologies (Azure, Snowflake, Databricks and Python). The Role Develop and maintain an API strategy aligned with business objectives, enhancing … current systems and integrating third-party APIs. Design and develop API architectures, set standards, and collaborate with stakeholders to integrate APIs with existing systems. Build integrations with both internal systems and external API providers. Document API development processes, code, and revisions using Confluence. Implement robust security protocols for APIs and coordinate with cybersecurity teams to address … threats. Continuously monitor API performance, troubleshoot issues, and manage regular updates and maintenance. Communicate with developers, IT teams, and business leaders to align API initiatives with business goals. Provide training and technical support on effective API usage to team members. Manage technical relationships and coordinate with third-party vendors. Research and stay current with trends and innovations More ❯

JavaScript/TypeScript API Engineer Contract Length: 6 Months Location: Manchester (1 Day a week in Manchester City Centre Office) Rate: Outside IR35 £350 - £400 per day Immediate Start Join a fast-moving product consultancy delivering high-impact software for a broad mix of clients across a range of sectors. They're now looking for an experienced contractor to … support a critical project focused on API development and complex system integration. The Role: You'll be part of a small, highly cooperative engineering team working on a SaaS platform designed to streamline and automate operational workflows. The focus is on building out and refining backend APIs, integrating third-party services, and improving the overall scalability and reliability … of the system. Tech Stack: TypeScript & JavaScript Node.js with Express n8n (workflow and automation integrations) PostgreSQL Permit.io (RBAC and auth) API best practices (rate limiting, downstream HTTP integrations) GraphQL (mostly migrating from) Day-to-Day Responsibilities: Contribute to backend development and API design using TypeScript Work on system integrations using n8n and other tools Collaborate on migrating More ❯

technologies What We're Looking For: Proven experience as a Solution Architect or Solution Designer Strong background in systems architecture, software design, and data modelling Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP Excellent communication and stakeholder management skills Strategic thinker with a collaborative mindset and strong attention More ❯

alike Shape the future of our integrations - Develop interfaces that seamlessly connect voize with systems in the medical, care and engineering sector Build future-proof solutions - Develop a scalable API, set industry standards, and work closely with partners and clients Take end-to-end ownership - From the idea and implementation to the ongoing development of our integrations Architecture … saves caregivers time, improves documentation, and supports people who do amazing work every day. Requirements Your Skillset - What you bring to the table Several years of experience in backend development and API integration , particularly Proficiency with Kotlin and flows is essential for this position Experience with infrastructure technologies such as Linux, Kubernetes, Docker, and AWS API design … and development with REST or GraphQL , as well as authentication Team Our team at voize consists of 45 passionate members working in the areas of product/development, data, customer success, sales, support, marketing and HR. We are a dynamic and ambitious team that works closely together to continuously improve our voice AI solutions for the care industry. More ❯

with some PHP, whos passionate about building powerful systems, automating workflows, and turning ideas into real-world solutions. This is a standalone role where you will be the sole development expert and have a key responsibility in generating ROI from the work that you do. You will be an integral part of the business as they aim to drive … increased revenue and workflow from your ideas Responsibilities Microsoft 365 Platform Development: Enhance and expand their use of Dynamics 365, integrating it with their software via APIs. Data Visualization: Build interactive dashboards and heat maps using Power BI to visualize global activity. Automation & Integration: Sync Dynamics with various internal applications and automate credit checks, customer alerts, and marketing workflows. … AI & Algorithmic Triggers: Develop smart alerts based on customer behavior trends. Web Development: Improve and expand their web-based quoting tools and plugins. API Development: Connect with global data sources like currency rates, oil prices, and freight indices. Skills Proficiency in SQL and PHP Experience with Microsoft Dynamics 365, Power BI, and .Net Strong understanding of API More ❯

skills, Spring MVC, Apache CKF, Dozer (a fast and flexible framework for mapping back and forth between Java Beans) & XML: A minimum of 5 years’ work experience in Software Development Experience with implementing service-oriented architecture (SOA) Designs and develops Enterprise application integration (EAI) using any ESB products like Fuse, Camel, TIBCO, IBM message broker Designs and develops ESB … Web services Solid hands-on experience in architecting and developing J2EE based web applications (JSP, Servlet, JDBC, JMS, JAXB) Expert level experience with SOAP and REST web services , open API development, and SOA concepts, using Spring with groovy, XML, JSON, and XSLT Solid understanding of integration & design patterns Gain adoption of platform delivery processes, standards and procedures Provide … hands-on technical leadership throughout software development lifecycle (requirements gathering, Proof of Concept (POC) development, RFP creation and evaluation, design, development, implementation and close out) Experience in Database SQL Queries in Oracle Experience in Tomcat or WebLogic or Web sphere Ability to work independently in Agile Methodology (KanBan) Experience with different open source stacks including build & release More ❯

skills, Spring MVC, Apache CXF, Dozer (a fast and flexible framework for mapping back and forth between Java Beans) & XML: A minimum of 5 years’ work experience in Software Development Experience with implementing service-oriented architecture (SOA) Designs and develops Enterprise application integration (EAI) using any ESB products like Fuse, Camel, TIBCO, IBM message broker Designs and develops ESB … Web services Solid hands-on experience in architecting and developing J2EE based web applications (JSP, Servlet, JDBC, JMS, JAXB) Expert level experience with SOAP and REST web services , open API development, and SOA concepts, using Spring with groovy, XML, JSON, and XSLT Solid understanding of integration & design patterns Gain adoption of platform delivery processes, standards and procedures Provide … hands-on technical leadership throughout software development lifecycle (requirements gathering, Proof of Concept (POC) development, RFP creation and evaluation, design, development, implementation and close out) Experience in Database SQL Queries in Oracle Experience in Tomcat or WebLogic or Web sphere Ability to work independently in Agile Methodology (KanBan) Experience with different open source stacks including build & release More ❯

Avanti Recruitment is partnering with a Sheffield-based software development company with over 20 years of expertise building operational systems for secure and specialist environments. Their technology is used in critical, real-world settings with long-term client relationships built on tailored solutions. You'll join their development team to lead the modernisation of their core booking and … migrating from .NET Framework and legacy VB.NET to modern .NET Core. This system is central to their business operations, making this a high-impact role from day one. Technical Development: Migrate core systems from .NET Framework/VB.NET to .NET Core Develop bespoke software solutions using .NET and C# Build APIs and integrate with existing operational systems Client Interaction … and clarify requirements Collaborate throughout the full software lifecycle from proposals to deployment Write documentation and coordinate release management Essential Skills Strong .NET and C# experience SQL Server proficiency API development experience UK Driving License and vehicle access Eligible for UK Government SC Clearance Desirable Skills Angular or Node.js exposure Azure cloud experience VB.NET knowledge (helpful for migration More ❯

Avanti Recruitment is partnering with a Sheffield-based software development company with over 20 years of expertise building operational systems for secure and specialist environments. Their technology is used in critical, real-world settings with long-term client relationships built on tailored solutions. You'll join their development team to lead the modernisation of their core booking and … migrating from .NET Framework and legacy VB.NET to modern .NET Core. This system is central to their business operations, making this a high-impact role from day one. Technical Development: Migrate core systems from .NET Framework/VB.NET to .NET Core Develop bespoke software solutions using .NET and C# Build APIs and integrate with existing operational systems Client Interaction … and clarify requirements Collaborate throughout the full software lifecycle from proposals to deployment Write documentation and coordinate release management Essential Skills Strong .NET and C# experience SQL Server proficiency API development experience UK Driving License and vehicle access Eligible for UK Government SC Clearance Desirable Skills Angular or Node.js exposure Azure cloud experience VB.NET knowledge (helpful for migration More ❯

exceptional opportunity to join an innovative, high-growth organisation shaping the future of AI-powered automation and digital interaction. We're seeking a Machine Learning Engineer with full-stack development experience to work on cutting-edge projects involving Generative AI , Retrieval-Augmented Generation (RAG) , and multi-agent reasoning frameworks . This is a hands-on, end-to-end engineering … Flask) and integrate with React, TypeScript, Node.js Vector Search: Use FAISS, Weaviate, Pinecone, ChromaDB, OpenSearch Required skills & experience: 3-5+ years of experience in ML engineering and software development Deep Python proficiency, with PyTorch, TensorFlow or Hugging Face Proven experience with LLMs, RAG, and deploying cloud-native AI on AWS Strong full-stack skills (React, TypeScript, Node.js) and … API development Familiarity with vector databases and multi-agent frameworks Apply now to join this high growth and award-winning organisation with the opportunity to be part of building the future of AI driven projects and solutions. The role offers a highly competitive salary and benefits package and will be office based in Manchester. INDAMS More ❯