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Mark43Mark43

Full Stack Engineer

Builds end-to-end software for police custody systems, working across React, TypeScript, Java, Spring Boot, GraphQL, MySQL, and AWS. The role suits a collaborative engineer interested in AI-assisted development and production-quality systems.

About the job

Responsibilities

  • Build full-stack software for UK police custody suites, owning features end-to-end from database migrations to user interfaces.
  • Develop workflows spanning GraphQL schemas and React components.
  • Investigate production issues using Datadog traces and logs, and deliver fixes.
  • Collaborate with teammates to solve state-management and other application problems.
  • Build agentic development workflows to automate pull-request reviews and engineering reporting.
  • Write database migrations and integration tests for load-related behavior.
  • Review pull requests and identify potentially unintended application impacts.
  • Participate in biannual hackathons and prototype new ideas.

Technology Stack

  • React
  • TypeScript
  • Java
  • Spring Boot
  • MySQL
  • GraphQL
  • AWS
  • Kubernetes
  • Argo CD
  • Terraform
  • Datadog
  • Claude Code

Requirements

  • Professional software engineering experience, or a computer science degree with internship experience for graduate roles.
  • Experience with at least part of the stack, including Java, JavaScript, TypeScript, React, or MySQL.
  • Curiosity about AI-assisted development tools such as Claude Code.
  • Clean, maintainable coding practices.
  • Strong collaboration and communication skills.
  • Authorization to work in the UK; visa sponsorship is not available.
  • Ability to complete Non-Police Personnel Vetting (NPPV) security clearance up to level 3, if required.

Compensation and Benefits

  • Target base annual salary: £30,000–£80,000, plus bonus opportunity, company stock options, and benefits.
  • 28 days of holiday plus UK bank holidays.
  • Private medical, dental, and vision insurance through AXA Health and BUPA for employees and dependents.
  • 18 weeks of paid parental leave for primary caregivers, plus a ramp-back programme.
  • Income protection at 75% of salary and death-in-service cover at four times salary.
  • Nest pension with a 3% employer contribution.
  • Gym reimbursement for employees and partners.
  • Home-office equipment allowance.
  • Claude Code Enterprise and ChatGPT Enterprise licences.
  • Spring Health membership with covered therapy sessions and mental wellness tools.
  • Paid sabbatical of one month after five years.
  • Biannual hackathons and a learning budget.

Skills

React, TypeScript, Java, Spring Boot, JavaScript, MySQL, GraphQL, AWS, Kubernetes, Argo Cd, Terraform, Datadog, Claude Code

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