12 of 12 Permanent API Design Jobs in South Yorkshire

Staff Software Engineer

Hiring Organisation
Definely
Location
Doncaster, South Yorkshire, UK
Employment Type
Full-time
What you'll do: Technical Leadership & Strategy Define and drive the technical vision, architecture, and roadmap for both desktop and backend services. Lead architectural design sessions, ensuring scalable, secure, and maintainable solutions. Champion engineering best practices, including early-stage quality planning (Shift Left), design patterns, automated testing … assisted coding, cross-platform frameworks) to improve productivity and product innovation. Application Development & Delivery Lead the development of complex WPF-based applications following modern design patterns such as MVVM, leveraging data binding, templating, and modular architecture. Oversee and contribute to the implementation of scalable backend services, APIs, and libraries ...

Remote Senior Software Engineer

Hiring Organisation
Turing
Location
Sheffield, UK
Employment Type
Full-time
Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … . Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment: flexible engagement ...

Software Architect

Hiring Organisation
Autodesk
Location
Sheffield, England, United Kingdom
Authoring, and their integration with Autodesk's existing and future AEC products. This opportunity is for you if you have a passion for the design of complex system architectures and are excited by the idea of transforming how AEC professionals use data to capture knowledge, inform decisions, and deliver … Data (e.g. 3D models, 2D drawings, issue tracking, cost, sensor streams, etc.) and information throughout the entire lifecycle of a built asset, from design and construction through operation and maintenance. This is an individual contributor role reporting to the Distinguished Architect, AEC Platform Data, central Architecture team. Responsibilities Define ...

Full Stack Engineer (JavaScript, Python)

Hiring Organisation
CRU
Location
Sheffield, England, United Kingdom
cross-functional teams to improve product quality and competitiveness. Key Responsibilities Drive the technical vision and strategy for web application development and backend services Design and implement modern, scalable applications; provide technical guidance and promote continuous learning Collaborate with business and engineering stakeholders to align technical development with strategic … Python for building and maintaining complex applications Strong understanding of software engineering concepts with applied experience in OO and functional programming paradigms Experience with API design and implementation (REST and/or GraphQL) Experience with cloud platforms (Azure and/or AWS) and DevOps practices (CI/ ...

Senior Shopify Developer

Hiring Organisation
Pulse Recruit
Location
Sheffield, UK
Employment Type
Full-time
work across: Advanced theme builds using Liquid Hydrogen, Oxygen and modern Shopify frameworks Custom Shopify app development (Node/React or Ruby) API development and third-party integrations Performance optimisation for high-traffic storefronts Building reusable frontend components and design systems Technical scoping and solution design Code … Shopify developer Proven background in building and maintaining custom Shopify apps Strong knowledge of Liquid, frontend fundamentals and Shopify's latest tooling Understanding of API design, data structures and integration patterns Experience working on large-scale or high-growth ecommerce brands Confident in leading technically and supporting developers ...

Senior Java Software Engineer

Hiring Organisation
Insight International (UK) Ltd
Location
Sheffield, England, United Kingdom
Role : Senior Java Developer Location : Sheffield, UK (Hybrid) Employment type : Contract Experience required : 8+ Years Must have: Java, API, Microservices, Kafaka, AWS/Azure/GCP, Banking/Payment experience The role including below major accountabilities: Set the level expected for software delivery within the team, leading by example … designing, programming, documentation and implementation of the systems Perform reviews of new and existing systems to ensure operational integrity and accomplishment of stated objective Design, code, test, debug and document programs as required. Provide architecture guidance to developers based on best practices and in alignment with global standards Ensuring ...

Senior ML Engineer/Data Scientist

Hiring Organisation
Quantori
Location
Sheffield, UK
Employment Type
Full-time
solution and code interpreter Experience with Multi-agent system architecture (e.g., LangGraph, ToolUniverse) Experience with MCP tool integration and orchestration Experience with API design and integration Experience with tool wrapping and interoperability Experience with Error handling and debugging (agentic workflows, logs) Experience with Modular system design, performance ...

Software Developer, Web

Hiring Organisation
Slice
Location
Sheffield, UK
Employment Type
Full-time
appropriate test coverage You are a Front-End specialist but you understand aspects of the full tech stack and can contribute meaningfully to API design and overall system architecture The Extras Working at Slice comes with a comprehensive set of benefits, but here are some of the unexpected ...

Senior Java Software Engineer

Hiring Organisation
Avensys Consulting UK
Location
Sheffield, England, United Kingdom
Java FullStack Engineer Location: Sheffield, UK (3 days weekly from office) Job Type: Contract - inside ir35 Minimum of 8 years’ applied experience as an API engineer Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc. More than … programming in Java and ideally Go and Rust Expertise in JVM tuning and diagnostic for application troubleshooting and performance-optimization Expertise in distributed system design including microservices, Springboot Experience working with Kafka, Docker, k8s, service mesh Experience with monitoring and observability technologies: Splunk, Grafana, Prometheus, Jaeger, Kiali, Open Telemetry ...

Full Stack Engineer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Sheffield, UK
Sheffield, UK (Hybrid) Job Description:- Bachelor’s Degree required in Computer Science, Engineering or related majors Minimum of 8 years’ applied experience as an API engineer Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc. More than … programming in Java and ideally Go and Rust Expertise in JVM tuning and diagnostic for application troubleshooting and performance-optimization Expertise in distributed system design including microservices, Springboot Experience working with Kafka, Docker, k8s, service mesh Experience with monitoring and observability technologies: Splunk, Grafana, Prometheus, Jaeger, Kiali, Open Telemetry ...

Lead Product Manager

Hiring Organisation
ZONTAL
Location
Sheffield, UK
Employment Type
Full-time
understand real-world workflows across R&D, QC, and manufacturing. Run structured discovery (interviews, ride-alongs, lab visits, pilots) to understand sample lifecycles, assay design, automation constraints, and regulatory requirements. Technical Product Ownership Own product requirements from problem statement through detailed specifications: user stories, data models, and non-functional … industry standards, such as Allotrope Simple Model (ASM), and related standards to create interoperable, open systems. Work with internal and external SMEs to design and evolve semantic models, controlled vocabularies, and mappings between lab systems and the ZONTAL data backbone. Ensure alignment with FAIR principles, ALCOA+, 21 CFR Part ...

Lead Product Manager

Hiring Organisation
ZONTAL
Location
Doncaster, South Yorkshire, UK
Employment Type
Full-time
understand real-world workflows across R&D, QC, and manufacturing. Run structured discovery (interviews, ride-alongs, lab visits, pilots) to understand sample lifecycles, assay design, automation constraints, and regulatory requirements. Technical Product Ownership Own product requirements from problem statement through detailed specifications: user stories, data models, and non-functional … industry standards, such as Allotrope Simple Model (ASM), and related standards to create interoperable, open systems. Work with internal and external SMEs to design and evolve semantic models, controlled vocabularies, and mappings between lab systems and the ZONTAL data backbone. Ensure alignment with FAIR principles, ALCOA+, 21 CFR Part ...