1 to 25 of 27 OpenAPI Jobs

Senior Back-end Engineer

Hiring Organisation
Calyptus
Location
United Kingdom, UK
services, including EC2, and a strong understanding of Kubernetes (K8s) for container orchestration is a big plus Strong experience in building RESTful APIs, especially OpenAPI-generated interfaces Familiarity with CI/CD pipelines and automated testing frameworks Proficiency with SQL including migrations (Flyway), ensuring data integrity and optimal performance ...

Software Engineer / Java Developer

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
Bournemouth, Dorset, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
DevOps Write automated tests (unit, integration) with JUnit, TestNG, Mockito Secure APIs using OAuth2, JWT, Spring Security Document APIs using Swagger/OpenAPI Monitor applications with ELK, Prometheus, Grafana, Splunk Collaborate using GitHub, JIRA, Confluence, Slack/Teams What We’re Looking For Solid experience in Java backend development ...

Full Stack Software Developer

Hiring Organisation
Damia Group Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £550 per day
principles and Test-Driven Development (TDD) . Experience working with both relational databases (e.g., Postgres) and NoSQL Understanding of REST API design patterns and OpenAPI specifications . Hands-on experience with the AWS Cloud Platform . Knowledge of GitHub and CI/CD pipelines using GitHub Actions . Experience ...

Java FullStack

Hiring Organisation
Dns Info Ltd
Location
Bournemouth, Dorset, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
DevOps Automated build, test, and deployment pipelines Testing JUnit, TestNG, Mockito, Selenium, Cypress Unit, integration, and end-to-end testing API Documentation Swagger/OpenAPI Documenting and testing REST APIs Security OAuth2, JWT, Spring Security Implementing authentication and authorization Monitoring & Logging ELK Stack, Prometheus, Grafana, Splunk Application monitoring ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Document Processing & OCR - Experience implementing intelligent document processing solutions using OCR technologies (Tesseract, Azure ...

Engineering Lead ( PHP )

Hiring Organisation
IRIS Software Group
Location
Leeds, UK
implement large-scale, modular, and maintainable architectures (Domain-Driven Design, Hexagonal/Clean Architecture preferred) Strong experience in API architecture and design (REST, GraphQL, OpenAPI) Deep knowledge of database architecture, query optimization, and performance tuning (SQL and NoSQL) Proven experience designing and maintaining CI/CD pipelines (TeamCity, GitHub ...

Senior Technical Lead

Hiring Organisation
Brightwork Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
Azure App Service, Container Services, and CI/CD pipelines Solid understanding of REST APIs, JSON, and microservice architecture Familiarity with Docker, Swagger/OpenAPI, and modern development practices Excellent communication and stakeholder management skills You'll join an environment that values autonomy, innovation and technical excellence, with ...

Cloud Solution Architect

Hiring Organisation
International Business Solutions Consulting Limited
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£500 per day
/CD tools (Azure DevOps, GitHub Actions, Harness, Jenkins, Spinnaker), Containers & orchestration (Kubernetes) and service mesh (eg, Istio), API design & security (REST/OpenAPI, mTLS, authN/Z), Scripting in Bash, PowerShell, or Python, Cloud Expertise (Depth in One, Ready to Cross-Train), Azure: ARM/Bicep, AKS, Application ...

Lead API Solution Architect

Hiring Organisation
Venn Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £1,000 per day
Working knowledge of payments, KYC, lending, trading, or regulatory reporting. Familiarity with Open Banking standards and financial API ecosystems. Strong understanding of REST, JSON, OpenAPI, and event-driven integration. Experience with API platforms such as Azure API Management or Apigee . Knowledge of secure messaging and integration tools (e.g. ...

Cloud Platform Engineering Lead / DevOps Lead

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Harness, Jenkins, Spinnaker). Expertise in containers & orchestration (Kubernetes) and service mesh technologies (e.g., Istio). Strong understanding of API design & security (REST/OpenAPI, mTLS, authN/Z). Scripting proficiency in Bash, PowerShell, or Python . Cloud Expertise (Depth in one cloud, with willingness to cross-train ...

Senior Platform Engineer

Hiring Organisation
Adroit People Ltd
Location
Halifax, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
Up to £470 per day
/CD systems. Deep knowledge of containers, orchestration ( Kubernetes ), and service-mesh patterns ( Istio ). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash or Python. Depth in GCP services , including: GKE (Google Kubernetes Engine) Cloud Load Balancing ...

Full-Stack Developer, full-time

Hiring Organisation
Saia Agrobotics
Location
Ede, Gelderland, Netherlands
Employment Type
Permanent
Salary
EUR Annual
look beyond a single subsystem, you recognise future bottlenecks and seek knowledge and expertise outside SAIA where necessary. Bonus points for any experience with OpenAPI or similar API-first development. Bonus points for any experience in cloud infrastructure-as-code (terraform or similar technologies). A driver's license ...

Sportsbook Solutions Architect

Hiring Organisation
The Unit
Location
Ireland
Employment Type
Permanent
Salary
EUR 80,000 - 100,000 Annual
Kafka, PostgreSQL, Redis, and Next.js/React frontends. Guide teams in implementing event-driven architectures using Kafka and RabbitMQ, ensuring consistency of AsyncAPI and OpenAPI contracts across polyglot services. Architect and review backend services primarily in Spring Boot (Java/Kotlin) with optional polyglot extensions (Go, Node.js, Python, Rust … code principles. Understanding of frontend architectures (React/Next.js, micro frontends, monorepos) and API integration patterns. Proficiency in API and event contract design using OpenAPI and AsyncAPI; knowledge of GraphQL federation is a plus. Strong background in observability, monitoring, and tracing , with Prometheus/Grafana/ELK or equivalent. ...

Principal Associate, Ontology and Data Modeling- Retail Bank

Hiring Organisation
Capital One
Location
wilmington, delaware, united states
thesauri in enhancing the discovery of management of enterprise data Familiarity with graph databases and technologies Familiarity with Python or R Familiarity with JSON, OpenAPI/YAML, AVRO Familiarity with Agile principles, processes, and methodologies Familiarity with Amazon Web Services Strong project management experience At this time, Capital ...

Engineering Manager, Logs

Hiring Organisation
Cloudflare
Location
Greater London, England, United Kingdom
with event-driven architectures and large-scale data processing (e.g., Kafka, Pulsar, Flink, ClickHouse, Iceberg, BigQuery). Strong understanding of API design and standards (OpenAPI/Swagger, OAuth/JWT). Familiarity with large-scale logging, observability, or telemetry systems is highly desirable. Ability to translate product requirements into ...

Data Analyst

Hiring Organisation
Computappoint
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
technical environment. Strong proficiency in SQL and scripting languages including Python or R. Practical experience with RESTful API design, documentation (e.g. Swagger/OpenAPI), and testing tools (e.g. Postman). Working knowledge of cloud platforms (primarily Azure) and associated data services. Strong understanding of data modelling, ETL workflows ...

Solutions Designer

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
stakeholder management skills Bachelor's degree or equivalent experience in Business, Computer Science, or related field Desirable: AWS certifications, BCS/IIBA credentials, OpenAPI/Swagger experience What's in it for me? Hybrid working in Leeds with genuine flexibility Work with cutting-edge AWS technologies and modern architectures ...

Technical Business Analyst

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
stakeholder management skills Bachelor's degree or equivalent experience in Business, Computer Science, or related field Desirable: AWS certifications, BCS/IIBA credentials, OpenAPI/Swagger experience What's in it for me? Hybrid working in Leeds with genuine flexibility Work with cutting-edge AWS technologies and modern architectures ...

Technical Architect

Hiring Organisation
RCRTR
Location
Swansea, City and County of Swansea, West Glamorgan, United Kingdom
Employment Type
Contract
Contract Rate
£470 - £500/day
synchronous/asynchronous). Lead the design of distributed microservices, ensuring scalability, resilience, observability, and maintainability. Apply schema-driven design principles (e.g., JSON Schema, OpenAPI, AsyncAPI) to ensure consistent and reusable domain models. Cloud & Platform Engineering (AWS) Select and integrate AWS services (EC2, Lambda, API Gateway, S3, DynamoDB … experience with APIs (REST, event-driven, messaging), microservices, and distributed system design. Strong understanding of schema-driven design , using tools such as JSON Schema, OpenAPI, or AsyncAPI. Solid understanding of cloud security, identity and access management, and operational best practices. Experience working with Infrastructure-as-Code (Terraform, CloudFormation). ...

Sr. Node.js developer $75/hr Srinivasa Kandi

Hiring Organisation
VALIANT TECHNOLOGIES LLC
Location
Hartford, Connecticut, United States
Employment Type
Any
Salary
USD 75 Hourly
with clean, testable code.Architect greenfield systems: service boundaries, data models, REST APIs, event streams, CI/CD, observability, and runtime topology.Set API standards: versioning, OpenAPI/Swagger, pagination, error contracts, resiliency patterns (timeouts, retries, circuit breakersOwn production readiness: SLOs, dashboards, alerting, runbooks; lead incident triage/bridge calls … cost; recommend pragmatic sequencing and trade-offs. Tech Stack You ll Work WithLanguages/Frameworks: Node.js, TypeScript, Express/Fastify/NestJSAPIs: REST, OpenAPI/Swagger, OAuth2/OIDC, JWTData: PostgreSQL/MySQL, NoSQL (MongoDB/DynamoDB), Redis cacheMessaging/Streaming: Kafka/RabbitMQ (sagas, outbox, idempotency)Cloud & Platform ...

Technical Writer

Hiring Organisation
JPMorganChase
Location
London, UK
Writer with experience creating technical documentation for developer-focused products, with emphasis on API documentation. Proficiency with modern documentation technologies and tools including Markdown, OpenAPI/Swagger, static site generators, docs-as-code content authoring, and git-based version control. Ability to quickly understand complex technical concepts and translate ...

Software Developer

Hiring Organisation
Blues Point Ltd
Location
Nottingham, Nottinghamshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum
maintain applications using .NET (C#), Angular, TypeScript/JavaScript, and CSS Work with SQL Server databases and develop API-first solutions using REST and OpenAPI/Swagger Contribute to cloud-based solutions in Azure (App Services, Functions, Event Grid, Logic Apps, Cosmos DB) Implement and maintain CI/… JavaScript Solid understanding of CSS and web development principles Experience with SQL Server and database design Familiarity with API-first development, REST, and OpenAPI/Swagger Experience in cloud-first environments , particularly Azure Knowledge of Azure DevOps and DevOps principles Proficiency with Git and modern version control Experience with ...

Technical Architect

Hiring Organisation
rcrtr
Location
Swansea, UK
synchronous/asynchronous). Lead the design of distributed microservices, ensuring scalability, resilience, observability, and maintainability. Apply schema-driven design principles (e.g., JSON Schema, OpenAPI, AsyncAPI) to ensure consistent and reusable domain models. Cloud & Platform Engineering (AWS) Select and integrate AWS services (EC2, Lambda, API Gateway, S3, DynamoDB … experience with APIs (REST, event-driven, messaging), microservices, and distributed system design. Strong understanding of schema-driven design, using tools such as JSON Schema, OpenAPI, or AsyncAPI. Solid understanding of cloud security, identity and access management, and operational best practices. Experience working with Infrastructure-as-Code (Terraform, CloudFormation). ...

Technical Architect

Hiring Organisation
IPS Group
Location
London, United Kingdom
Employment Type
Permanent
asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams to standardise the technical approach for messaging, data extraction, transformation, and load (ETL/ELT) processes across … queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification. Strong understanding of DevOps practices and hands-on experience with CI/CD tooling such as Azure DevOps or GitLab CI. Extensive knowledge ...

Technical Architect

Hiring Organisation
IPS Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
asynchronous messaging, and batch ETL). Lead the design and documentation of internal and external APIs, ensuring best practice in RESTful design, versioning, and OpenAPI standards. Work with Engineering and Data teams to standardise the technical approach for messaging, data extraction, transformation, and load (ETL/ELT) processes across … queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification. Strong understanding of DevOps practices and hands-on experience with CI/CD tooling such as Azure DevOps or GitLab CI. Extensive knowledge ...