> Markdown version of [/jobs/ext/1606176-qa-software-engineer](https://www.wearedevelopers.com/jobs/ext/1606176-qa-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # qa software engineer. - **Company:** Randstad UK - **Location:** Witney, UK - **Salary:** £50,000.0 - £57,000.0 - **Contract:** Temporary contract - **Skills:** Testing (Software), C Sharp (Programming Language), Computer Programming, Databases, Data Integration, Systems Development Life Cycle, Software Engineering, Verification and Validation (Software), Software Quality Assurance (SQA), SQL Databases, Data Streaming, Systems Integration, Backend, Information Technology - **Published:** July 14, 2026 - **Apply:** https://www.randstad.co.uk/jobs/qa-software-engineer_witney_47147163/ ## About the Role * MES Expertise: Proven, hands-on experience working directly with MES systems (e.g., Siemens Opcenter, Critical Manufacturing, Werum PAS-X, Camstar, or similar platforms). * Strong Programming Skills: Direct, practical programming experience using C# and writing efficient SQL queries for database management and system integration. * Regulated Industry Background: Prior experience working within a highly regulated sector is ideal, but not essential, with a strong preference for Medical Devices, Pharmaceuticals, or Aerospace., * Education: A Bachelor's degree in Computer Science, Software Engineering, Biomedical Engineering, or a related technical discipline. * Methodical Mindset: Sharp attention to detail with a passion for software quality assurance, validation, and automated/manual testing processes. * Communication: Excellent communication skills to effectively collaborate with both factory floor operators and senior engineering teams. ## Description In this role, you will act as the crucial bridge between our shop floor and quality management systems for a leading Global Medical Device technology company. You will be responsible for maintaining, updating, improving, and building our MES platforms, ensuring that the software tracking our medical device production is robust, validated, and compliant with strict industry regulations. Core Responsibilities * System Development & Enhancement: Build, maintain, update, and continuously improve workflows, recipes, and digital batch records within our MES platforms to align with precise medical device product specifications. * Programming & Data Integration: Utilize C# and SQL to maintain system integrity, develop backend updates, manage databases, and optimize the data flow between higher-level enterprise systems (ERP) and shop-floor equipment. * Compliance & Software Validation: Ensure all MES modifications strictly meet medical device regulatory standards (e.g., cGMP, ISO 13485). Draft, update, and execute rigorous validation protocols and software test scripts. * Quality Assurance & Defect Tracking: Monitor work-in-progress (WIP) systems in real-time to proactively catch software deviations, generate non-conformance reports, and enforce corrective/preventive actions (CAPA). * Cross-functional Collaboration: Work closely with manufacturing, IT/OT infrastructure, and quality assurance teams to ensure seamless system operation and minimal downtime. ## Related Videos - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1520-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [TiDB, One Layer at a Time: How Distributed SQL Became an Agentic AI Backbone](https://www.wearedevelopers.com/videos/100117-tidb-one-layer-at-a-time-how-distributed-sql-became-an-agentic-ai-backbone) ## Related Articles - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)