At a Glance
- Tasks: Design and build production-quality software services while optimising CI/CD pipelines.
- Company: Join a forward-thinking tech company focused on AI and innovative solutions.
- Benefits: Competitive pay, health perks, and opportunities for remote work.
- Other info: Dynamic team environment with great potential for career advancement.
- Why this job: Be at the forefront of AI technology and make a real difference in the industry.
- Qualifications: Experience in software development, especially with Java and React.
The predicted salary is between 63000 - 77000 £ per year.
Job Type: Contract
Work Mode: Onsite (Client)
Responsibilities:
- Design, build and ship production quality services within our current business controls.
- Build and optimise DevOps pipelines enhancing CI/CD processing including testing and platform process observability.
- Design, iterate and optimise prompts for a wide range of LLM use cases including instruction following, structured output generation, classification, summarisation, code generation, and reasoning tasks.
- Build and manage prompt libraries and versioning strategies treating prompts as first-class engineering artefacts.
- Collaborate with product and domain teams to translate business requirements into precise, well-structured prompt specifications.
- Architect and implement agentic systems, autonomous agents, multi-agent pipelines, tool-use workflows, planning loops, and memory-augmented reasoning.
- Implement LLM observability, logging, tracing, evaluation pipelines, and guardrails to maintain quality and reliability in production AI systems.
- Advise on responsible AI deployment including output validation, human-in-the-loop design, and risk mitigation for agentic workflows.
Requirements:
- Strong proficiency in Java, Spring Boot, REST APIs, event-driven services, security, and performance optimisation.
- Solid React development skills and API integration.
- Experience with relational and in-memory databases such as PostgreSQL and Redis.
- Experience with messaging and streaming platforms like Kafka or equivalent.
- Demonstrable hands-on experience engineering prompts for production LLM applications, not just prototypes.
- Familiarity with prompt evaluation frameworks and tooling such as PromptFlow, LangSmith, Braintrust, or custom evaluation pipelines.
- Understanding of tokenisation, context limits, temperature tuning, and model-specific behaviours across major LLM providers.
- Experience structuring prompts for tool/function calling, structured JSON output, and multi-turn conversations.
- Kubernetes deployments, services, ingress, Helm, Kustomize, HPA, and RBAC.
- CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, or equivalent.
Software Engineering Delivery in Sheffield employer: TESTQ TECHNOLOGIES LTD
TESTQ Technologies LTD. is an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration in the heart of the UK Insurance and Financial Services sector. With a strong emphasis on employee growth, you will have the opportunity to mentor and lead talented data engineers while working on cutting-edge cloud technologies like AWS, Databricks, and MongoDB. The company prioritises a supportive environment that encourages professional development and provides unique advantages such as flexible working arrangements and a commitment to data governance and security.
We think you need these skills to ace Software Engineering Delivery in Sheffield
Java
Spring Boot
REST APIs
Event-Driven Services
Security and Performance Optimisation
React
API Integration
