13 of 13 REST Jobs in South Yorkshire

Senior Cloud Engineer (Java/Python) – Finance AI Platform

Location
Sheffield, England, United Kingdom
where applicable. Required Skills 10+ years of software engineering experience. Strong hands-on expertise in Java and/or Python. Kubernetes, Docker, Microservices, and REST APIs. CI/CD, DevOps, and Agile delivery practices. Preferred Skills Experience with LLM integration, RAG, AI orchestration, or Agentic AI frameworks. Exposure ...

Senior Software Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
tooling. Support the continuous improvement of platform reliability, scalability and performance. Required Skills & Experience Strong commercial Experience developing applications in Java . Experience building REST APIs and microservices. Strong understanding of SQL and relational databases. Experience working within Agile delivery teams. Proficiency with development tools such as GitHub, Bitbucket, Jira ...

Lead Azure Engineer

Location
Sheffield, England, United Kingdom
Significant experience in Senior Lead or Lead Engineer roles delivering and operating production systems. Strong hands‐on engineering background in Java, including Spring Boot, REST APIs, testing strategies, and performance tuning. Strong hands‐on experience with Python for service development and automation, preferably using FastAPI or Flask. Proven experience building ...

Lead Azure Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £550/day
Significant experience in Senior Lead or Lead Engineer roles delivering and operating production systems. Strong hands-on engineering background in Java, including Spring Boot, REST APIs, testing strategies, and performance tuning. Strong hands-on experience with Python for service development and automation, preferably using FastAPI or Flask. Proven experience building ...

IAM Developer | GCP | Identity & Access Management | Contract

Hiring Organisation
GCS
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
scale Identity & Access Management transformation programme. Key Skills Required: Identity & Access Management (IAM) Auth0, Okta, WorkOS, or similar identity platforms Python, Go, or Node.js REST API & Micro services development GCP (Cloud Run, Cloud Functions, GKE) Pub/Sub/Event-Driven Architecture Terraform & CI/CD OAuth2, OIDC, JWT, SAML ...

Senior Software Engineer

Location
Sheffield, England, United Kingdom
technical stakeholders What will you need to succeed? Strong understanding of design patterns and hexagonal architecture Hands‐on experience building and consuming REST APIs and using API documentation tools Solid knowledge of both relational and NoSQL databases Excellent communication skills with the ability to clearly explain technical concepts Proven experience ...

Card Solutions Architects - Contract role - Sheffield - Immediate

Hiring Organisation
StrategicsIQ Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
solution designs , decomposing into MVPs, epics, and detailed technical stories Design and implement scalable, resilient, and secure architectures across distributed systems Define integration patterns (REST APIs, messaging, event-driven architecture) across internal platforms and external partners Provide hands-on architectural leadership to engineering teams, ensuring design consistency and adherence ...

Senior Enterprise Architect

Hiring Organisation
Hackajob Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
scalable, highly available cloud services (e.g., GCP/Azure) Breadth across modern + legacy technology stacks such as Docker, Kubernetes, microservices, API gateways (Kong), REST, Kafka, React Familiarity with large-scale transformation using analytics and AI/ML Opening up a world of opportunity Being open to different points ...

Data Scientist

Hiring Organisation
Hackajob Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
GenAI/LLM and/or agentic patterns) with measurable operational outcomes -Strong technical grounding in several of: Python (and/or JVM languages), REST/gRPC APIs, microservices Containers/Kubernetes, CI/CD, release management -SQL and data integration patterns (batch/stream), data quality controls -LLM/ ...

Frontend React Developer

Location
Sheffield, England, United Kingdom
responsive web applications using React.js. Build reusable UI components and front‐end libraries. Implement state management using Redux, Context API, or equivalent frameworks. Integrate REST APIs and backend services. Optimize applications for performance, scalability, and security. Participate in code reviews, testing, and CI/CD deployment activities. UX Design Create ...

Senior Software Engineer (Interoperability)

Location
Sheffield, England, United Kingdom
from legacy manufacturing systems, enabling their transformation into a modern digital ecosystem. Evaluate existing infrastructure and recommend architectural improvements, protocols, and communication standards (e.g., REST, MQTT, GraphQL, SPARQL). Write clean, maintainable, and scalable software solutions to support integration projects, transitioning proof-of-concept scripts into robust backend services, including … developed collaboratively with source control (e.g. Git). Essential Interview/Application Proven track record in designing and implementing interoperable software systems, APIs (e.g., REST, GraphQL, OpenAPI), message brokers, and robust data integration pipelines utilising standard data exchange formats (e.g. JSON, XML). Essential Interview/Application Advanced familiarity with ...

Java Developer

Hiring Organisation
GCS
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £551/day
products Design, develop & implement back-end features as per backlog/priority with a small element of front-end development. Collaborate with the rest of the engineering team to design and launch new features. Proactively work with customers to resolve their issues and respond to feature requests. Build APIs … style applications. Experience with Graph databases (experience with Neo4j is desirable). Experience modernising legacy Java applications. Experience with the design and build of REST APIs Experience building HTML/JavaScript front-ends (experience with Angular is desirable). Strong technical and analytical troubleshooting skills. Experience in BDD and/ ...

IAM Tester (Identity Processing & Provisioning)

Hiring Organisation
GCS
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
e.g., Jira, ALM). Strong defect writing, stakeholder communication, and evidence-based reporting Desirable skills API testing experience (e.g., Postman) and basic understanding of REST/JSON. Exposure to IAM tools (e.g., SailPoint, Saviynt, Okta, Azure AD) and directories (AD/LDAP). Test automation experience (e.g., Java/Python … Selenium, REST-assured, Cypress) and CI/CD (e.g., Jenkins/GitLab). Understanding of audit/control requirements for access management and segregation of duties. GCS is acting as an Employment Business in relation to this vacancy. ...