Software Engineer jobs in United Kingdom

Closing Date for Applications: Monday 2nd March 2026

A platform you can believe in: Immersive One is the leading cyber resilience solution across the globe.

Build and scale a best in class platform alongside a team of the brightest minds in cybersecurity. At Immersive, we’re uniquely positioned to future-proof organizations against any cyber challenge. If that excites you, read on!

Immersive helps prove and improve your cyber resilience by simulating real-world threats, testing your skills, and measuring performance. We put your readiness to the ultimate test. From sharpening technical capabilities to making high-pressure decisions, our platform allows you to assess every angle, pinpoint areas for growth, and prove your ability to tackle evolving threats with unwavering confidence.

Find out more at the following internal pages: 2024-2025 information about Immersive Labs and the story of the company. 2024-2025 information about Immersive Labs.

Immersive was founded in 2017. From a cargo container in Bristol, UK we’ve grown to over 300 employees globally, announced funding of more than £150 million and have been voted a Best place to work on multiple occasions.

Find out more at the careers page: https://www.immersivelabs.com/company/careers

Associate Software Engineer - Bristol, UK (Hybrid working) - £40,000 - £45,000

Immersive is hiring! Could you be our next Software Engineer? Join our established UK Engineering team as an Associate Software Engineer. We are looking for someone curious, eager to solve problems, and excited to build alongside a collaborative team.

Reporting to one of our Engineering Managers and based in our Bristol office, you will be a key part of building our Immersive One platform. You’ll join a team where we value determination, ingenuity, and pragmatic, reusable technical solutions.

You’ll work within a multi-disciplinary agile team, focusing on quarterly outcomes that drive real impact. We rotate our teams to keep things fresh and encourage cross-pollination of skills, and you’ll also have the chance to explore innovative ideas during our twice-yearly Hack Weeks.

You will be instrumental in shaping the future of our product, working across our entire system landscape. Our tech stack includes:

• Backend: Ruby on Rails, Node.js and Python
• Frontend: React and TypeScript
• Testing: Playwright and TypeScript

This role is ideal for someone early in their commercial software development journey who has the motivation to become a well-rounded full-stack engineer. We appreciate that early in your career, you may not have a fully formed view of your preferred direction; here, you will gain hands-on experience across the entire stack.

As an individual contributor in the team, your main responsibilities will include:

• Work alongside the team to design, build, and maintain an efficient, reusable, and reliable codebase across the stack.
• Collaborate with Product Managers and other disciplines to help translate requirements into technical solutions.
• Partner with our Quality Experts to deliver automated tests, ensuring we have confidence in every feature we release.
• Contribute to the team's success by fixing bugs, resolving incidents, and minimizing customer impact.
• Help ensure code quality by sharing feedback with your peers via our code review process.

Success in this role will depend most on your approach, underlying skills, and potential for growth. You don’t have to match all the listed requirements below exactly to be considered, so we encourage you to apply even if some of them would be new to you.

Sounds good? We’d love to hear from you if you have proven experience in the following areas:

• 1–2 years of commercial experience building customer facing web applications or working on SaaS platforms.
• You consider accessibility in all aspects of your work.
• Experience using AI tools to accelerate development and problem-solving.
• You are willing to work with different programming languages across our tech stack (Ruby, Python, React, TypeScript, or Node.js) as needed.
• Proficiency with Git and familiarity with GitHub actions.
• Experience working in agile cross-functional teams and working independently and pro-actively.
• Takes pride in code quality by testing features thoroughly and offering helpful, supportive feedback during peer code reviews.

This is a hybrid role based in Bristol. While we fully support flexible working, we believe that face-to-face collaboration is vital for your development at this stage of your career. We are hiring more than one engineer, so you will have a cohort of colleagues at a similar level to collaborate with in person!

How we support you

We want to give you a place where you\'ll learn from us and we\'ll learn from you. We have a strong track record of nurturing talent through Summer internships and apprenticeships. To set you up for success, we provide:

• Mentorship & Coaching: Regular support from experienced developers.
• Collaboration: Opportunities to pair with senior engineers to grow your knowledge.
• Continuous Learning: A structured approach to professional development, backed by a dedicated professional learning fund.

Immersive’s growth has been fuelled by our values that underpin everything we do, here's how they relate to this role:

• Driven - We push the boundaries of innovation, acting swiftly to achieve ambitious outcomes.
• Inclusive - Our strength lies in diversity, fostering a culture where every individual contributes to our collective strength.
• Customer Centric - We seek to develop deep relationships with our customers to help them achieve their business outcomes.
• One Team - We are a talented global team working together to achieve our vision.

We encourage people of all different backgrounds and identities to apply. We are committed to maintaining an inclusive, supportive place for you to be you and do your very best work.

• Time off, flexible and remote working with 25 days annual leave + 2 volunteering days, plus your birthday off
• Holiday accrual up to 30 days after five years of service
• Enhanced parental leave, mindfulness groups, critical illness cover, 7% matched pension, private healthcare plan and more
• Career and learning development through the platform and a dedicated professional development fund
• Recognition & Rewards for doing great work and living our values
• Flexible working options (start/finish times, reduced hours)
• Vibrant team culture with events and Hack Week
• UK Bristol hub access, railcard loan and cycle scheme

Find out more at https://www.immersivelabs.com/company/careers

Cyber threats wait for no one and neither should you. Apply now!

What you can expect once you apply:

• Our talent acquisition partner reviews all applications; this can take up to two weeks.
• If successful, you will be invited to a screening interview (about 30–40 minutes).
• If you progress, you will have a Cultural interview with two Engineering People Managers (about 45 minutes).
• For the final stage, you will tackle a technical brief; ~90 minutes to discuss your approach.
• If all goes well, you will meet future colleagues at our Bristol office.

If at any point you are unsuccessful we will advise you. From application we do this via email; due to volumes we cannot respond individually to every applicant. From the first interview onward, we endeavour to call you with feedback.