126 to 150 of 176 API Design Jobs

customer-facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature … client's work, you are required to hold an eDV level security clearance. As an industry leading, nationwide Marketing, Digital, Analytics, IT and Design recruitment agency, we are continually receiving new assignments to work on, so keep a close eye on our website, Facebook, LinkedIn and Twitter pages ...

working - 3 days per week onsite Salary up to £65,000 per annum A leading Birmingham-based client is seeking a Python Developer to design, build, and deploy applications using Python frameworks and LLM APIs. The position focuses on developing scalable, secure AI services in Azure's public cloud … involves hands-on work throughout the development lifecycle, including API design, data access, AI integration, and cloud deployment. Key skills and responsibilities: Design, develop, and maintain AI-driven applications and services utilising Python. Build and manage RESTful APIs with FastAPI. Integrate and oversee Large Language Models ...

following key skills: - At least three years commercial scala programming - Strong framework experience (Akka, Play etc) - Relational database experience - PostgreSQL - MongoDB, NoSQL - RESTful API design and integration experience - Solid unit test understanding - Spec2, scalaTest etc - Experience working in a TDD/BDD driven environment - Containerization experience - Docker, Kubernetes … well-established friendly team then please apply now to be considered and for further details. Scala Developer Up to £80,000 Scala, REST Api, NoSQL, TDD/BDD, functional programming, CI/CD, Play, Akka ...

/Quarkus), and JVM internals. Deep experience with distributed systems, concurrency, and high-performance architectures. Hands-on experience with message queues (Kafka, RabbitMQ, Pulsar), API design, and event-driven systems. Solid understanding of SQL/NoSQL databases, caching, and data modelling. Strong knowledge of cloud platforms (Azure ...

computer science, engineering, or a related field 2-3 years commercial experience in development Experienced in C# and .NET Core Understanding of RESTful API design and integrations Understanding of CI/CD Pipelines and Git Desirable, but not essential: Experience with Azure Understanding of Containerisation using Docker ...

develop new features, enhance existing systems, and ensure our platform remains stable and efficient. Your deep understanding of Rails architecture, PostgreSQL optimisation, and API design will be essential as you contribute to ongoing development projects. If you enjoy collaborating in Agile/Scrum environments, value clean code ...

high standards for security, auditability, and compliance Main Skills Needed: Strong background in building and running production-grade systems Solid backend engineering expertise and API design experience Good understanding of relational databases and data modelling Experience working in regulated or audit-heavy environments Full stack capability across frontend ...

worlds leading banks in their high-performing engineering teams, building asynchronous, message-driven systems designed for scale, resilience, and near-zero downtime. Design and implement high-throughput, low-latency systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively … with non-blocking I/O, asynchronous flows, back-pressure, and concurrency Contribute to system and API design, focusing on scalability, fault tolerance, and observability Collaborate closely with architects, engineers, and client teams across Europe Operate in Agile environments (Scrum/Kanban) with a strong engineering culture Tech ...

Autogen, Google ADK). Architecting RAG pipelines, vector database integrations, and prompt management strategies. Building guardrail frameworks to prevent hallucinations, injection and bias. Designing API-first and event-driven architectures. Influencing enterprise roadmaps, governance forums and technical standards. Partnering with senior engineers, value streams, and product stakeholders. What … bring Expertise in Azure AI, AWS Bedrock or Google Vertex. Strong experience with LLM evaluation/MES frameworks. Deep knowledge of integration security, API design and cloud-native patterns. Experience delivering solutions in regulated environments (desirable). Naturally proactive, consultative and comfortable influencing at senior levels. ...

with delivery teams, and accountable for turning architectural thinking into practical outcomes. Why This Opportunity Stands Out True Solution Architecture – You’ll own solution design from current-state assessment through to target architecture and delivery alignment. Greenfield thinking, real constraints – Apply modern architecture principles to a live, evolving estate … will: Assess existing applications and platforms and define clear target-state architectures Build and own system and application roadmaps aligned to business priorities Design scalable, modular solution architectures including integration and NFRs Lead migration and modernisation initiatives across legacy and cloud platforms Act as the architecture point of contact ...

month project (Outside IR35.) You will work closely with senior stakeholders and the wider team on both high and low level solution design to provide improvements on existing systems. Provide technical leadership and guidance throughout the project lifecycle, ensuring solutions are scalable, secure, and align with business objectives … complex enterprise solutions. Strong background in software development and system integration. Strong understanding of cloud platforms (AWS, Azure, Google Cloud) Experience with microservices architecture, API design, and integration patterns. Experience with DevOps practices and tools. Please apply now to be considered for this role. ...

cycle Software Product Owner: Technical Experience React 18+ - Hooks, Context, Suspense, concurrent features Node.js/Express or Fastify - production APIs, Middleware, error handling REST API design - versioning, error contracts, idempotency 3rd Party API Integration AWS Jira AI - willing to leverage The permanent role for a Software Product ...

All3 is transforming how buildings are conceived, developed, and delivered. We combine AI-powered design with robotic prefabrication and on-site assembly to build custom architecture at the cost and speed of mass production - unlocking even the most complex sites. We’re currently seeking a Principal Platform Software Engineer … trade-offs to meet business goals; Leading technical discussions across robotics, hardware, controls, and product teams; Applying systems engineering principles to requirements analysis, architecture design, verification, and validation. Expertise: Expert-level experience in production-grade software development with Modern C++ and Python; Strong experience working in embedded Linux environments ...

Sector: Defence & National Security Role Summary Our client is seeking DV cleared Backend Developers to support high impact Defence and Security programmes. You will design, build and operate secure, cloud-native backend services that underpin mission-critical national systems. This is a hands on engineering role, focused on building … will work end to end - from shaping technical designs and delivering features through to improving reliability, resilience and performance in live operations. Key Responsibilities Design and build backend services and APIs, delivering features end-to-end in collaboration with cross-functional teams. Develop cloud-native and containerised applications using ...

content modelling, and multi-site setups Headless delivery experience (eg, JSS , Experience Edge ) is desirable Backend Strong C#/.NET (preferably ASP.NET Core ) REST API design and integration patterns Experience applying Sitecore Helix principles Exposure to Azure (or similar cloud hosting) is a plus, but not essential. Frontend ...

joining a small team building cto.new and shaping how it gets built. What we care about: Strong TypeScript and solid backend fundamentals - data modeling, API design, concurrency, failure modes Production experience with LLM features - tool-calling, prompt iteration, streaming, evals, cost and latency tuning AI-native workflow - fluent ...

technology teams with a track record of delivering high-quality software solutions Strong hands-on Back End engineering experience with Node.js, TypeScript, and API design Deep understanding of AWS and modern cloud-native architectures Experience working with distributed systems at scale, including performance optimisation and scalability improvements Knowledge ...

evolution of core Ruby on Rails operational platforms. Optimise PostgreSQL performance and Sidekiq background job efficiency. Manage secure third-party integrations and RESTful API design. Partner with Platform teams on AWS and CI/CD reliability. The Person: Deep experience with Ruby on Rails and OOP. Expert in PostgreSQL ...

influence architectural decisions at a critical stage of growth. The Backend Engineer (Full Stack, backend-leaning) will take ownership of complex backend REST API Services and deliver scalable systems using TypeScript and Node.js . You will closely with Product, Engineering and Operations, working alongside the Lead Engineer to refine … technical direction, improve delivery standards and elevate system reliability. The Senior Backend Engineer (Full Stack, backend-leaning) will... • Design and maintain scalable Node.js/TypeScript services and REST APIs • Own backend initiatives end-to-end, from architecture to rollout • Strengthen testing strategy across unit and integration layers • Improve data ...

Full-Stack JavaScript Engineer. You'll contribute towards an extensive product roadmap spanning multiple products, with a strong focus on third-party integrations and API development. Tech Stack - React.js, Next.js, Node.js, Nest.js, Express, Typescript, GraphQL, AWS Key Responsibilities: Build full-stack features across a suite of customer journey … marketing products API design and third-party integration work Contribute to product architecture decisions with high levels of autonomy Collaborate closely with a tight-knit, experienced engineering team Requirements: Senior-level capability Strong front-end and back-end JavaScript/Typescript experience Strong AWS skills beneficial There ...

complex risk calculations and high-throughput financial data processing. This is an environment where your technical expertise in Object-Oriented Programming (OOP) and API design will directly impact global operations and regulatory compliance. Key Responsibilities Engineering: Build scalable, testable, and maintainable applications using .NET Core and RESTful APIs … systems. Collaboration: Work alongside Quants, Risk Managers, and Front Office teams to translate business needs into technical reality. Architecture: Participate in high-level technical design and architectural discussions to evolve the platform. Requirements Technical Core: Extensive experience in C#, .NET, SQL Server, and CI/CD pipelines. Domain Expertise ...

processing is essential to understanding system performance and planning spiral development paths. This is a very hands-on role and requires the continued design and development of complex system architectures and the instantiations for future products. This is a perfect opportunity for a Software Engineer who is proactive … complex problems - you will be working with a dedicated group of experienced software, and systems engineers. We maintain an impactful team culture. Responsibilities: Design and develop real-time/embedded software using C and C++. Architect and implement robust, scalable, and maintainable multi-threaded applications. Work with hardware teams ...

building high-performance, data-driven applications used in real-world operational environments. This role goes beyond UI — you’ll work across the stack to design, build and scale the systems that power complex, real-time data products. What You’ll Work On Designing and building end-to-end features … mission-critical and high-assurance environments Tech Stack Frontend: React.js (TypeScript preferred), modern state management & component-driven architecture Backend: Python (FastAPI/Flask), API design, data processing services Cloud & Infrastructure: AWS (with dedicated platform support), scalable and secure environments Data & Systems: Real-time data pipelines, geospatial/image ...

Expert Developer: Java experience (Spring Boot, Bazel, Maven) with a focus on distributed services and Kubernetes (GKE). System Designer: Strong skills in API design (gRPC, GraphQL, REST) and relational databases like PostgreSQL. Cloud Proficient: Hands-on experience with GCP services, including BigQuery and Cloud SQL. Security Minded ...

Technical Skills: C#/.NET Microsoft SQL Server CI/CD pipelines Docker Angular RabbitMQ AI Development Tools Nice to have: Redis MongoDB REST API Design Azure Unit Testing Frameworks Benefits Package: Competitive base salary - £65k - £75k (DOE) Career Progression Flexi-Hours Onsite parking Exciting, and unique projects ...