At a Glance
- Tasks: Build impactful software for UK police forces using cutting-edge technologies.
- Company: Join a dynamic public safety tech company with a startup vibe in Central Manchester.
- Benefits: Enjoy 28 days holiday, private health insurance, and a competitive salary package.
- Other info: Hybrid work model with excellent career growth and biannual hackathons.
- Why this job: Make a real difference in public safety while working with innovative AI tools.
- Qualifications: Experience in software engineering, team collaboration, and AI-assisted development.
The predicted salary is between 90000 - 125000 £ per year.
Applicants must be authorized to work for any employer in the country in which the role is being hired. We are unable to sponsor or take over sponsorship of an employment visa at this time.
Mark43 is a public safety technology company trusted by over 200 police forces worldwide. We build cloud-native software on AWS that police forces and emergency services rely on in their most critical moments, from managing custody records to dispatching officers in the field. Our UK team of 25 is based in Central Manchester, helping British police forces replace outdated, fragmented systems with modern, resilient software. We're part of a 400-person global company, but the UK team operates with startup energy: small enough that your work is visible, big enough that you're backed by serious investment. We're hiring Senior Software Engineers who want to build systems that genuinely matter.
What You'll Do
- You'll work across the full stack, building the software that UK police custody suites depend on every day. Our team owns features end-to-end, from database migration to UI and our stack includes:
- Frontend: React, TypeScript
- Backend: Java, Spring Boot
- Data: MySQL, GraphQL
- Infrastructure: AWS, Kubernetes, Argo CD, Terraform
- Observability: Datadog
We're also genuinely investing in how AI changes the way we build software. We don't just use Copilot for autocomplete. We're building agentic workflows into our development process, using tools like Claude Code to automate routine work, accelerate code review, and let engineers focus on the problems that actually need human judgement. If you're excited about shaping how a team works with AI, not just using it, this is the place.
If you were on the team last week, you might have:
- Designed and shipped a new workflow for custody officers processing detainees, from GraphQL schema through to React components
- Investigated a production issue using Datadog traces and logs, then pushed a fix the same day
- Paired with a teammate to untangle a tricky state management problem in a booking form
- Built an agentic workflow that reviews PRs, learns from human feedback, and posts weekly engineering highlights to Slack, all automatically
- Managed a cross-team feature end-to-end — designed the architecture, broke work into parallel workstreams, and coordinated junior engineers to deliver on time
- Reviewed a pull request, spotted a change that would unintentionally affect other parts of the app, and directed a safer approach in the comments
- Prototyped a new idea at one of the hackathons we run twice a year, a chance to experiment with new tech, explore wild ideas, and ship something fun with no constraints
What You'll Need
- You write clean, maintainable code and care about the impact of your work. We're an AI-first team. AI tools are part of how we work every day — writing code, reviewing pull requests, investigating issues, and automating routine work. We expect you to be comfortable working alongside AI and keen to push what's possible with it.
- You should have:
- Professional software engineering experience, including ownership of complex systems and delivery of large-scale technical initiatives
- Experience mentoring and supporting other engineers
- Strong technical judgement and the ability to make architectural decisions
- Experience leading projects across multiple teams or domains, influencing technical direction beyond your immediate area
- A strategic mindset, with the ability to balance immediate delivery with long-term technical health
- Experience with our stack: Java, JavaScript, TypeScript + React, and MySQL
- Experience with AI-assisted development tools like Claude Code and how they can improve your workflow
- A strong sense of ownership and accountability for both technical outcomes and team success
- Confidence operating in ambiguous environments and helping teams navigate technical trade-offs
- A collaborative mindset and strong communication skills
What We Offer
- 28 days holiday plus UK bank holidays
- Private medical, dental, and vision insurance through AXA Health and BUPA, fully paid for you and your dependents
- 18 weeks paid parental leave (gender-neutral, for both primary and secondary caregivers) plus a ramp-back programme
- Income protection (75% of salary) and death in service cover (4x salary), fully paid
- Pension through Nest with 3% employer contribution
- Gym reimbursement for you and your partner
- Equipment allowance to set up your home office
- AI tooling including Claude Code Enterprise, Microsoft Copilot, and ChatGPT Enterprise licences provided
- Spring Health membership with therapy sessions and mental wellness tools, fully covered
- Company performance-based bonus
- Paid sabbatical of one month at your five-year anniversary
- Biannual hackathons, learning budget, and a team that genuinely invests in your growth
What We Value
- Humility. You know the best ideas win, no matter where they come from. You ask questions before making assumptions and you're as happy being wrong as being right, because either way, the team gets to a better answer.
- Inclusivity. You respect expertise in all its forms and actively seek out perspectives different from your own. You make space for others and assume good intent.
- Excellence. You care about quality in your code, your reviews, and how you communicate. You're not satisfied with "it works" when it could be better, and you encourage the same standard in those around you.
- Diligence. You take ownership, mind the details, and understand that the software we build is used in moments that genuinely matter. You don't cut corners when people are depending on the outcome.
Location
This role is based at our Central Manchester office and follows a hybrid work model. Applicants must be authorised to work in the UK. This role may require you to complete Non-Police Personnel Vetting (NPPV) security clearance up to level 3.
We feel passionately about equal pay for equal work, and transparency in compensation is one vehicle to achieve that. Total compensation for this role is market competitive, including a target base annual salary range of £90k-125k, plus bonus opportunity, company stock options, and a full benefits package. Please note that the higher end of this range will be reserved for candidates with appropriate experience who reside in high cost of labor markets.
Senior Full Stack Engineer in Manchester employer: Mark43
Mark43 is an exceptional employer that fosters a dynamic and inclusive work culture, where your contributions are visible and impactful. Based in Central Manchester, our team enjoys a hybrid work model, competitive benefits including private health insurance and generous parental leave, and ample opportunities for professional growth through biannual hackathons and a dedicated learning budget. Join us to work on meaningful projects that enhance public safety while being part of a supportive and innovative environment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full Stack Engineer in Manchester
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at local meetups. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those that align with what we do at Mark43. This gives potential employers a taste of your coding chops and problem-solving abilities.
✨Tip Number 3
Prepare for interviews by practising common technical questions and coding challenges. We want to see how you think and approach problems, so be ready to explain your thought process as you tackle them.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Mark43.
We think you need these skills to ace Senior Full Stack Engineer in Manchester
Some tips for your application 🫡
Show Your Passion for Impact:When you're writing your application, let us know why you care about building software that genuinely matters. Share your experiences where your work made a difference, especially in tech that supports public safety.
Be Clear and Concise:We love a good story, but keep it relevant! Make sure your application is straightforward and highlights your skills with our tech stack. Use bullet points if it helps to make your achievements pop!
Highlight Your AI Experience:Since we're an AI-first team, mention any experience you have with AI-assisted development tools. Show us how you've used these tools to improve your workflow or tackle challenges in your projects.
Apply Through Our Website:Don't forget to apply through our website! It’s the best way for us to see your application and get you into the process. Plus, it shows you're keen on joining our team at StudySmarter!
How to prepare for a job interview at Mark43
✨Know Your Stack Inside Out
Make sure you’re well-versed in the technologies mentioned in the job description, like Java, TypeScript, and React. Brush up on your knowledge of AWS and Kubernetes too, as they’re crucial for the role. Being able to discuss your experience with these tools confidently will show that you're ready to hit the ground running.
✨Showcase Your AI Savvy
Since this team is AI-first, be prepared to discuss how you've used AI tools in your previous projects. Share specific examples of how you've integrated tools like Claude Code into your workflow. This will demonstrate your forward-thinking approach and your ability to leverage technology to improve processes.
✨Prepare for Real-World Scenarios
Expect to tackle practical problems during the interview. Think about past challenges you've faced, especially those involving complex systems or cross-team collaboration. Be ready to explain your thought process and how you arrived at your solutions, as this will highlight your technical judgement and strategic mindset.
✨Emphasise Team Collaboration
This role values a collaborative mindset, so be sure to share experiences where you’ve worked effectively within a team. Discuss how you’ve mentored others or led projects, and how you navigated technical trade-offs. This will show that you not only care about your own success but also about the success of the team as a whole.
