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Full Stack Engineer

External
mark43 logoMark43 · Manchester, UK
Full-timeOn-site2w ago
AWSDatadogGraphQLJavaJavaScriptKubernetes
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Responsibilities

  • 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, so you'll get broad exposure regardless of your starting point. Our stack includes:
  • Frontend: React, TypeScript
  • Backend: Java, Spring Boot
  • Data: MySQL, GraphQL
  • Infrastructure: AWS, Kubernetes, Argo CD, Terraform
  • Observability: Datadog
  • If you were on the team last week, you might have:
  • 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
  • Written a database migration and the integration tests to prove it works under load
  • Reviewed a pull request, spotted a change that would unintentionally affect other parts of the app, and proposed 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

Requirements

  • Professional software engineering experience (or a CS degree with internship experience for graduate roles)
  • Experience with at least part of our stack: Java, JavaScript, TypeScript + React, and MySQL
  • Curiosity about AI-assisted development tools like Claude Code and how they can improve your workflow
  • A collaborative mindset and strong communication skills

Benefits

28 days holiday plus UK bank holidaysPrivate medical, dental, and vision insurance through AXA Health and BUPA, fully paid for you and your dependents18 weeks paid parental leave (gender-neutral, for both primary and secondary caregivers) plus a ramp-back programmeIncome protection (75% of salary) and death in service cover (4x salary), fully paidPension through Nest with 3% employer contributionGym reimbursement for you and your partnerEquipment allowance to set up your home officeAI tooling including Claude Code Enterprise, Microsoft Copilot, and ChatGPT Enterprise licences providedSpring Health membership with therapy sessions and mental wellness tools, fully coveredCompany performance-based bonusPaid sabbatical of one month at your five-year anniversaryBiannual hackathons , learning budget, and a team that genuinely invests in your growthWhat We ValueHumility. 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 matterHealth insuranceDental insuranceVision insurancePerformance bonusParental leave

Additional Information

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 Software Engineers who want to build systems that genuinely matter.

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