Full Stack Engineer

Department: Data, Development & Operations

Employment Type: Full Time

Location: Jersey

Key Responsibilities

Feature Delivery

• Build and ship full-stack features across Connect, from data model and backend logic through to user-facing screens.
• Take ownership of discrete areas of work, delivering independently within agreed architecture and standards.
• Translate designs into accurate, responsive, accessible front-end implementations.
• Break work down into deliverable increments and track progress through the team's planning process.
  
  

Backend and Data

• Develop and maintain backend systems in Ruby on Rails, including RESTful APIs, background jobs, and workflow logic.
• Design and evolve data models in MySQL, with attention to consistency, performance, and maintainability.
• Implement robust authorisation and access-control logic, with care for data segregation and security.
• Build and consume third-party integrations, including external APIs and CRM systems.
  
  

Front End

• Build front-end applications and components in React and TypeScript, consuming and extending the platform's design system.
• Implement data visualisations and interactive analytics views.
• Maintain a high standard of usability and visual fidelity, working from design specifications and collaborating with the design partner where detail needs resolving.
  
  

Reporting and Document Generation

• Contribute to Enhance's reporting and document-generation capabilities, building new report outputs.
• Integrate reporting into the wider platform, re-using existing calculation logic rather than duplicating it.
  
  

Engineering Standards

• Write clear, well-tested code, following the team's conventions for test-driven development and automated testing (RSpec and front-end testing frameworks).
• Participate in code review, both submitting work for review and reviewing others' contributions constructively.
• Use the team's version control, branching, and continuous-integration practices, and contribute to safe, repeatable deployment.
• Help troubleshoot and resolve technical issues across the stack, escalating architectural decisions to the Head of Engineering where appropriate.
  
  

Collaboration and Continuous Improvement

• Work closely with the Head of Engineering, the engineering team, the design partner, and colleagues across the business.
• Contribute to architectural discussions, surfacing trade-offs and flagging risks early.
• Support the controlled adoption of automation and AI-assisted capabilities where they deliver measurable value.
• Support new features through to launch, responding to user feedback.

Skills, Knowledge and Expertise

• Solid commercial experience with Ruby on Rails, including building and consuming RESTful APIs.
• Strong proficiency in modern front-end development using React and TypeScript.
• Experience with relational databases (MySQL or similar), data modelling, and query performance.
• A working discipline of automated testing (TDD, RSpec, or equivalent) and the habit of writing tested code by default.
• Comfortable working within an established codebase, respecting existing patterns and conventions rather than reinventing them.
• Experience integrating third-party APIs, including authentication, error handling, and rate considerations.
• Familiarity with Git-based workflows, code review, CI/CD pipelines, and modern deployment practices.
• Experience with Agile delivery and breaking features into incremental, shippable work.
• Exposure to data visualisation or charting libraries is an advantage.
• Exposure to Node.js / NestJS or templating-based document rendering is an advantage, though not essential.
• A practical interest in AI and data-driven systems, and the judgement to assess where they genuinely add value.
• Strong written and verbal communication, and the ability to work collaboratively with non-technical colleagues and external partners.