26 to 50 of 93 OpenAPI Jobs in the UK

peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search Technologies Relational Databases ...

through to component and sequence-level detail — that can be directly implemented by engineering teams* Design and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team delivery* Architect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator ...

Java, JavaScript, Python, Go, Rust, or other modern programming languages Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger Experience integrating security controls and automated security testing into CI/CD pipelines Experience applying AI, automation, and modern engineering tools ...

query tuning, indexing and execution plans High-traffic E-commerce or transactional systems Cloud experience, ideally AWS Strong RESTful API design: versioning, idempotency, caching, OpenAPI/Swagger Production ownership: monitoring and profiling .NET apps (eg Datadog, New Relic, CloudWatch) Daily use of AI coding tools (Claude Code, Copilot, Cursor ...

execution plans \n High-traffic E-commerce or transactional systems \n Cloud experience, ideally AWS \n Strong RESTful API design: versioning, idempotency, caching, OpenAPI/Swagger \n Production ownership: monitoring and profiling .NET apps (eg Datadog, New Relic, CloudWatch) \n Daily use of AI coding tools (Claude Code, Copilot ...

performance, reliability, and maintainability. Python Back End development, primarily using FastAPI and modern API patterns. Strong understanding of RESTful API design, schema validation, and OpenAPI/Swagger. Experience working with messaging and eventing platforms such as Kafka, RabbitMQ, Azure Service Bus, MQTT, or similar. Cloud-native development experience ...

technical direction within your team Required experience Core Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or Java REST API development/OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

every area above - we can support with training and development in some areas! JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch Unit ...

board and digital communication interfaces , including CAN, SPI, I2C, UART and RS422. Developing networking interfaces and services, including REST APIs, SNMP agents and OpenAPI specifications . Developing and debugging TCP/UDP communication layers and investigating low-level networking and protocol performance. Developing secure communications, including authentication, encryption, secure ...

Java, JavaScript, Python, Go, Rust, or other modern programming languages. Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger. Experience integrating security controls and automated security testing into CI/CD pipelines. Experience applying AI, automation, and modern engineering tools ...

Kafka/Pulsar), messaging patternsBackend: Java, Spring Boot, microservices, REST/gRPCCloud: AWS (EKS/ECS, SQS/SNS, API Gateway, Terraform)API: OpenAPI/AsyncAPI, versioning, governanceFrontend: React/TypeScript (working knowledge)Domain Expertise (any of these)Real-Time Ledger (accounting, event sourcing)Payments (SWIFT, ISO 20022, settlement ...

deploying ML models as production services, API design, and service integration Strong Python skills and service/backend engineering experience (ideally in FastAPI/OpenAPI, Flask, Go, or Java) Production experience with containerization and orchestration (ideally Kubernetes – EKS/OpenShift), Docker, and IaC (ideally Terraform or Terraform Cloud) Ownership ...

systems, event-driven architectures, APIs, and data flows. Familiarity with tools such as JIRA and Confluence. Understanding of technical concepts such as RESTful services, OpenAPI/Swagger, CI/CD pipelines, containers, and microservices. Previous involvement in cloud infrastructure, platform, or enterprise technology programmes. SC/NPPV3 clearance ...

Essential Skills & Experience Strong software engineering fundamentals, including maintainable design, testing, code review and continuous improvement. Extensive experience designing and securing APIs, including REST, OpenAPI, OAuth 2.0, OpenID Connect and service-to-service communication. Strong Microsoft Azure experience covering application hosting, networking, monitoring and integration services. Advanced C# ...

ensure APIs, events, and data flows are compliant, secure, and well-governed. Work with frontend and mobile engineers to define clear, well-documented APIs (OpenAPI/Swagger). Leadership & Mentorship Participate in architectural discussions, design reviews, and incident retrospectives, bringing strong backend expertise. What are we looking for? Technical ...

stalls — and what absorbs it: partitioning, consumer groups, parallelism up to your partition count You've built APIs from scratch, not just consumed them — OpenAPI spec, REST/GraphQL design, auth, rate limiting, versioning, idempotency Event‐driven thinking and cloud‐native instincts Exposure to SIP, WebRTC, or real‐time ...

highly regulated environments Additional Experience of Interest Experience with any of the following would be beneficial: Terraform AWS CloudFormation Docker Gatsby REST APIs/OpenAPI GitLab Infrastructure as Code DevOps-focused development practices Scaling and improving existing software products Defence, national security or central government environments Working within blended ...

Playwright, Selenium, JUnit, Cucumber/Gherkin Performance & Security Testing: Gatling, OWASP ZAP, SonarQube Accessibility Testing: Axe, WAVE, WCAG Development & Testing Tools: WireMock, GitHub Copilot, OpenAPI Cloud & Infrastructure: AWS, Docker, Kubernetes, Microservices Contract Details Rate: £400-£430 per day (Inside IR35) Duration: 12 months Location: Telford - minimum 2 days ...

track record of clean, maintainable, testable production code. Front-end development experience (React preferred) Production API design & delivery (FastAPI preferred), including versioning, documentation (OpenAPI/Swagger), and observability. Cloud experience (AWS preferred) beyond core compute/storage/DB—e.g., eventing, queues, serverless, logging/monitoring, secrets. Git workflows ...

first mindset by designing, documenting, and ensuring the quality of robust, efficient HTTP/REST APIs for microservice communication (including using tools like OpenAPI/Swagger). Ensure System Health: Oversee and implement strategies for system scalability, resilience, and high availability, including ownership of monitoring, alerting, and performance optimization. ...

after-the-fact reporting, including eval harnesses, regression gates, and drift or quality monitoring for non-deterministic systems. Experience designing APIs with REST and OpenAPI that are scalable, secure, versioned, and extensible. Working knowledge of AWS and containerized workloads (for example Docker), and familiarity with infrastructure-as-code such ...

reporting, including eval harnesses, regression gates, and drift or quality monitoring for non-deterministic systems. Proficiency in API-first design, including REST and OpenAPI specifications, designing APIs that are scalable, secure, versioned, and extensible. Solid working knowledge of AWS and containerized workloads (e.g., Docker), and familiarity with infrastructure ...

Experience working with Azure, containerised environments and Kubernetes technologies, including pods, services and ingress. Strong understanding of API-led integration, JMS messaging, Swagger/OpenAPI and integration best practices. Experience integrating with enterprise data sources and platforms, including AWS S3, Oracle, SQL Server, MySQL and Elastic/OpenSearch. Ability ...

backend development experience with Python with a track record of clean, maintainable, testable production code. Production API design & delivery (FastAPI preferred), including versioning, documentation (OpenAPI/Swagger), and observability. Cloud experience (AWS preferred) beyond core compute/storage/DB - e.g., eventing, queues, serverless, logging/monitoring, secrets. ...

maintaining board to board and digital interfaces: CAN, SPI, I2C, UART and RS422 Building networked services and interfaces including REST APIs, SNMP agents and OpenAPI specifications Developing and debugging TCP and UDP communication layers, and getting into the weeds on protocol performance Secure communications: authentication, encryption, secure firmware update ...