Quality Assurance Engineer London 50,000 - 70,000 An established and growing communications and technology contractor is looking for an experienced Quality Assurance Engineer to join its London team. The company specialises in delivering communications, infrastructure and technology solutions across technically demanding projects. With an experienced engineering and project delivery team, the business has built a strong reputation for quality, reliability and delivering complex projects to a high standard. This is a key role within the project team, with responsibility for ensuring quality is maintained throughout the full project lifecycle - from initial planning and design through to installation, testing and final handover. You will work closely with project managers, engineers, site teams, subcontractors and clients, carrying out inspections and audits, reviewing project documentation and ensuring works are delivered in accordance with specifications, standards and...

Cardstream is a market-leading fintech providing secure, scalable payment technology and infrastructure to partners across the payments ecosystem. Trusted by acquirers, ISVs, SaaS platforms, and payment providers, Cardstream enables businesses to build, scale, and operate sophisticated payment propositions with confidence. We are looking for a proactive Software Quality Assurance Engineer to help ensure the reliability, security, and performance of Cardstream s payment platform. If you re detail-driven, curious, and passionate about delivering high-quality software in a fast-growing FinTech, we want to hear from you. Why This Role? This is an opportunity to play a defining role in the quality of ground-breaking payment technology used at scale. As a Software Quality Assurance Engineer at Cardstream, you will help protect the reliability, security, and performance of platforms operating in a highly regulated FinTech environment. Your work will directly influence how...

QA / Test Engineer READ THIS BEFORE YOU APPLY You will be testing Kafka-based streaming data pipelines at genuinely enormous scale, and you will be writing the test strategy for the whole programme from a blank page. There is nothing in place today. If that sounds like the job you have been waiting for rather than a job with a gap in it, keep reading. WHO THE CLIENT IS Our client is a UK-headquartered AI company building sovereign AI capability for defence and national security. They have been established for around a decade and are one of the country's leading builders of AI for high-risk, high-assurance environments. Their platform is an AI operating system built entirely in the UK, designed for settings where security, trust and full infrastructure control are non-negotiable. It deploys across cloud, edge, on-premise and fully air-gapped systems, and is already live inside UK Defence and national security missions. They closed a substantial Series A round...