1 to 25 of 27 Permanent OpenAPI Jobs

Java Solution Architect - Lansing, MI

Hiring Organisation
Digital Technology Solutions
Location
Michigan, United States
Employment Type
Permanent
Salary
USD Annual
first principles Architect event-driven systems using platforms like Apache Kafka, RabbitMQ, and IBM MQ Define and govern API contracts (REST, OpenAPI, gRPC) and integration patterns Implement resilience patterns (circuit breaker, retries, DLQ, saga orchestration) Design cloud-native solutions on Microsoft Azure and Amazon Web Services Lead containerization using ...

Software Engineer - Secret Cleared

Hiring Organisation
Global TechPro
Location
Arlington, Virginia, United States
Employment Type
Permanent
Salary
USD 130,000 Annual
Designed and built scalable RESTful APIs using ASP.NET Core, Spring Boot, and NestJS, ensuring consistent patterns, strong consumer usability, and fully documented contracts through OpenAPI/Swagger. Modernized legacy .NET and Java applications by refactoring monolithic components into maintainable modules and microservices, and developing MuleSoft System, Process, and Experience ...

Full Stack Software Engineer (Golang/Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-haves: Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

Senior Java Software Engineer

Hiring Organisation
Sanderson
Location
United Kingdom
containerisation CI/CD pipelines (Jenkins or similar) Working in agile, multi‐disciplinary teams Desirable experience Kafka Liquibase or similar migration tooling Swagger/OpenAPI Gradle React TypeScript ...

Java Developer

Hiring Organisation
TXP Technology x People
Location
Newcastle upon Tyne, UK
Employment Type
Full-time
features. Essential Skills & Experience You must have commercial experience or strong hands-on exposure to: Java (17+) Spring Framework Microservices architecture & REST APIs OpenAPI/Swagger for API design and documentation Test-Driven Development (TDD) Desirable/Nice-to-Have Skills Experience or familiarity with any of the following ...

C# Senior Software Developer

Hiring Organisation
Adria Solutions
Location
Preston, Lancashire, North West, United Kingdom
Employment Type
Permanent
Salary
£75,000
Framework Core (DbContext, LINQ, Migrations) Debug and trace request flows from UI Controller API Database Response Maintain and publish API documentation via Swagger/OpenAPI Ensure API security, reliability, and performance (error handling, retry logic, logging, timeouts, CORS) Collaborate with database, infrastructure, and QA teams for portal ...

Application Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes (AKS), Azure App Services Azure DevOps, Azure ...

Software Engineer

Hiring Organisation
17918
Location
Bristol, Gloucestershire, United Kingdom
/SNS. Knowledge of both NoSQL (preferably DynamoDB) and SQL databases for high-performance storage. Understanding of API Gateway management and maintaining clear OpenAPI specifications. Strong problem-solving and debugging skills within complex, distributed environments. Excellent communication skills and a preference for working in collaborative, Agile team structures. ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

Senior Quality Assurance Specialist

Hiring Organisation
System1
Location
United Kingdom
such as Selenium BDD frameworks such as Reqnroll Test frameworks such as NUnit, xUnit or MSTest API testing using REST, Postman or Swagger/OpenAPI CI/CD pipelines and automated testing workflows SQL and relational databases such as SQL Server or MySQL Cloud environments, ideally Microsoft Azure Microservices ...

API Developer

Hiring Organisation
Mphasis
Location
London Area, United Kingdom
financial services industry and their IT systems Practical cloud native experience Professional experience in API management technology e.g APIGEE, Kong, Mulesoft Strong understand of OpenAPI Specification (OAS) for RESTful APIs DevOps (CICD, Kubernetes, Terraform) Preferred qualifications, capabilities, and skills AWS (ECS, EKS, MSK) Kong API Gateway Golang programming language ...

Principal API Architect

Hiring Organisation
TeleWorld Solutions
Location
United States
Employment Type
Permanent
Salary
USD Annual
into clean, developer friendly interfaces Define and enforce API standards for scalability, performance, security, versioning, and lifecycle management Drive API design decisions across REST, OpenAPI, GraphQL, gRPC, and event driven architectures Ensure APIs support high through put, low latency enterprise grade work loads with strong observability and resiliency Provide ...

UX/UI Developer

Hiring Organisation
Metro
Location
Birmingham, England, United Kingdom
component libraries such as DevExpress/DevExtreme Understanding of the full software development lifecycle in Agile environments Experience consuming RESTful APIs and working with OpenAPI/Swagger Knowledge of browser compatibility, performance optimisation, and accessibility standards Experience with Git-based source control and CI/CD pipelines Working knowledge ...

API Integration Platform Specialist

Hiring Organisation
Dns Info Ltd
Location
London, United Kingdom
Employment Type
Any
Salary
GBP Annual
services industry and their IT systems Practical cloud native experience Professional experience in API management technology eg API GEE, Kong, Mulesoft Strong understand of OpenAPI Specification (OAS) for RESTful API s DevOps (CICD, Kubernetes, Terraform) Preferred qualifications, capabilities, and skills AWS (ECS, EKS, MSK) Kong API Gateway Golang programming ...

Software Engineer (Golang / AWS)

Hiring Organisation
Adria Solutions
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
using Go. Develop serverless applications in AWS (Lambda, SST). Implement CI/CD pipelines and automated testing frameworks. Build and document APIs using OpenAPI standards. Work with NoSQL data stores, including DynamoDB. Apply strong security principles in all software design. Collaborate in Agile squads to deliver solutions efficiently. ...

AWS Solution Architect

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75,000
Hands-on experience as an AWS Solution Architect (Integration Specialist) with Lambda and Kubernetes (EKS) Strong knowledge of API design and security (API Gateway, OpenAPI, OAuth2, JWT) Experience with cloud-native frameworks such as Flask or FastAPI Solid understanding of Kubernetes security, IAM, encryption, and CI/CD tooling ...

Technical Business Analyst

Hiring Organisation
Maxwell Bond
Location
Greater Manchester, England, United Kingdom
line management responsibilities) Key Skills & Experience Proven experience as a Technical Business Analyst in a software delivery environment Solid experience working with APIs (REST, OpenAPI/Swagger, JSON) Strong SQL skills for data analysis and validation Ability to communicate effectively with both technical and non-technical stakeholders Experience with ...

AWS Solution Architect - Associate Manager

Hiring Organisation
Anson Mccade
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Hands-on experience as an AWS Solution Architect (Integration Specialist) with Lambda and Kubernetes (EKS) Strong knowledge of API design and security (API Gateway, OpenAPI, OAuth2, JWT) Experience with cloud-native frameworks such as Flask or FastAPI Solid understanding of Kubernetes security, IAM, encryption, and CI/CD tooling ...

Developer, Quality Engineering

Hiring Organisation
Connect Auto
Location
United Kingdom
multi-brand or multi-tenant environments. Our technology stack Frontend - React 18, TypeScript, Vite, MUI, Tailwind CSS, TanStack Query Backend - Node.js 22, Express, TSOA (OpenAPI) Infra - AWS Lambda, DynamoDB, OpenSearch, PostgreSQL, S3 Auth - Auth0 (JWT) QA Tooling - Qase Working arrangements This is a UK-based position. We offer fully ...

Principal Solutions Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technical foundation, including: Knowledge of blockchain data structures, networking principles, Layer 1/Layer 2, and interoperability protocols. Experience designing and integrating RESTful APIs, OpenAPI specifications, and cloud‐based architectures. Familiarity with IT and security protocols (TLS/SSL) and experience with data compliance, governance, and auditability. Proficiency ...

Principal Architect - Intelligent Automation

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
reference architectures for Agentic AI solutions, leveraging Azure AI Foundry as the pro-code platform - including multi-agent orchestration, tool integration (MCP, A2A, OpenAPI), agent memory, and enterprise knowledge grounding (RAG)* Assess opportunities for Intelligent Automation based on technical feasibility and business value, to enable prioritisation of the backlog ...

Software Engineer

Hiring Organisation
17918
Location
London, United Kingdom
proactive and adaptable mindset, with a passion for learning new technologies and a drive to explore innovative solutions. Familiarity with API Gateway management and OpenAPI specs. Experience with cloud platforms (e.g. Amazon AWS). At JET, this is how we play Our teams forge connections internally and work with ...

Software Engineer - Java /Back End

Hiring Organisation
Som3
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum
management (Flyway/Liquibase), indexing strategy, and query optimisation. Design, document, and maintain RESTful and/or GraphQL APIs, ensuring consistency, versioning, and thorough OpenAPI/Swagger documentation. Identify, catalogue, and systematically address technical debt in collaboration with the wider Your background and experience will include Great communication skills … design. PostgreSQL skills: schema design, complex query writing, index optimisation, and migration tooling (Flyway or Liquibase). Experience designing and documenting APIs using OpenAPI/Swagger Proficiency with build tools - Maven or Gradle - and a modern Java development workflow. Understanding of software design principles (SOLID, DRY, Clean Architecture) Familiarity ...

Senior Backend Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput workloads. Build well-versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward compatibility. Implement authentication and authorization using OAuth2/OIDC, session management, and fine-grained … Palantir Foundry, including working with Foundry APIs, data pipelines, ontologies, or Foundry-based application development. Proven experience designing and operating production REST APIs with OpenAPI/Swagger. Deep understanding of relational database design, indexing, performance tuning, and migrations (PostgreSQL). Proficiency with containerisation (Docker) and Git-based workflows. Experience ...

Python Developer

Hiring Organisation
Understanding Solutions
Location
City of London, London, United Kingdom
Experience Needed Highly experienced Python Engineer/Developer Can hit the ground running and make an impact from early Technology needed: Python, Kafka, Flask, OpenAPI + FastAPI Excellent communication and collaborative skills needed Python Developer Day Rate: £400 Outside IR35 Duration: 6-months Start Date: ASAP (No long notice ...