release engineer jobs in Southampton

Job Description Job Title: Release Automation EngineerTarget Start Date: ASAPContract Type: Permanent, Part Time, Full Time, Job Share option availableSalary Range: £44,800 - £67,200 Dependent on Experience)Location: Eastleigh - HybridClosing Date for applications: 03/02/2026 Release Automation Engineer: Ageas Insurance is looking for a Release Automation Engineer, who will be responsible for...

JLA is a mission critical infrastructure solutions business offering services Laundry, Catering, Heating, Fire Safety, Infection Control and Air Conditioning. The company offers an end-to-end, on premise, machine supply and breakdown service proposition under the name Total Care, and additional products and services. JLA is driven by a world class Sales & Marketing engine, owns and maintains all...

You will be part of their customers Design Authority, taking responsibility for all aspects of engineering process, governance, technology and strategy.

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

You will own the engineering vision and execution of Keepnet’s core platform, operating across the UK, EU, US, UAE, and Canada, supported by distributed offshore and nearshore teams.

You will not be expected to do everything yourself. Success in this role will be measured by platform reliability, delivery predictability, team health, and customer impact.

Job Description Transducer Engineer Underwater Acoustics We are seeking an experienced and motivated Transducer Engineer to join an Electromechanical Design team working at the forefront of underwater acoustics technology. This is a high-impact role offering the opportunity to lead continuous, data-driven improvement across transducer systems used in demanding global applications. This...

Job Description Sonardyne is seeking an experienced and driven Transducer Engineer to join our Electromechanical Design Group. This is a high-impact role offering the opportunity to lead continuous, data-driven improvements across our transducer systems and ensure world-class acoustic performance and reliability. With over 50 years of innovation in underwater acoustics, Sonardyne operates at...

Senior Quality Engineer Medical Device Startup | £60M Raised Why This Role Matters This is a rare opportunity to join a high-growth medical device startup that has raised £60M from top-tier investors and is scaling rapidly towards global commercialisation. The company is building next-generation medical technologies that will meaningfully improve patient outcomes. As Senior Quality Engineer,...

Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Software Engineer to join their growing engineering team. This is an exciting opportunity to work on scalable, resilient systems while contributing to real-world solutions in the financial technology space. Key...

You will be a great fit if you: - Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. - Are backend-leaning, with deep Node. js and API experience. - Have previously worked in early-stage start-ups or very lean engineering teams. - Have extensive evidence of being a hands-on individual contributor in complex codebases.

DevSecOps Engineer – Defence Overview An experienced DevSecOps Engineer is required to support defence-focused projects, driving best practice across secure software delivery, cloud platforms, and deployment automation. The role focuses on improving the speed, reliability, and security of systems throughout the full software development lifecycle. This position works with modern DevSecOps,...

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

You will help shape both platform capabilities and client application experiences, contributing to work across backend services, operator-facing management tools, and consumer-facing applications for web, mobile and connected TV devices.

Technical Author/ Writer Basingstoke This role sits close to engineering and technology, focusing on turning complex systems into clear, accurate documentation that supports real-world users. You’ll work independently while collaborating closely with subject-matter experts, owning technical content from first draft through to release. The work spans multiple formats and audiences, with quality...

You will work closely with developers, project managers and technical stakeholders, taking ownership of testing activities and ensuring systems meet defined quality standards prior to release and go-live. As a Senior Software Tester, you will be responsible for driving software quality through effective manual and automated testing practices.

You will be the human intelligence guiding the AI tools, ensuring that our platform is robust, bug-free, and user-friendly.

You should be comfortable recording tests (Codegen), reading the resulting TypeScript/JavaScript, and using AI to tweak it.

You will manually test new features with a critical eye, looking for UX quirks, logic gaps, and edge cases that scripts can't catch.

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

About us Founded in 2008, CitNOW is an innovative, enterprise-level software product suite that allows automotive dealerships globally to sell more vehicles and parts more profitably. CitNOW’s app-based platform provides a secure, brand-compliant solution – for dealers to build trust, transparency and long-lasting relationships. CitNOW Group was formed in 2021 to unite a portfolio of 12 global...

We’re hiring a Senior Quality Assurance Specialist known as a Quality Senior Scientist internally Location: Chippenham, Wiltshire, 2 days a week hybrid Contract: Fixed-Term Contract (12 months) Reports to: Scientific Affairs Director – Pharma Division Are you passionate about driving quality excellence in healthcare? Do you thrive in a regulated environment where your expertise directly...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...