Senior Frontend Engineer

London, United Kingdom | Posted on 16/12/2025

VE3 is a technology and business consultancy focused on delivering end‑to‑end technology solutions and products. We have successfully serviced enterprises across multiple markets, including the public and private sectors. Our services span all aspects of business, providing a holistic approach to managing an organization. We are committed to providing technical innovations and tools that empower organizations with critical information to facilitate decision‑making that results in business transformation through cost savings and increased operational efficiency. Our commitment to quality is adopted throughout the organization and sets the foundation for delivering our full suite of capabilities.

Job Description

About VE3:

VE3 is a UK‑based technology consultancy and product innovation company delivering cutting‑edge digital transformation across public sector, enterprise, and regulated industries. We combine deep engineering expertise with an agile, product‑led mindset to build scalable, secure, and data‑driven platforms for our clients.

We are looking for a Senior Software Engineer (Full‑Stack) to join our engineering team on a major transformation programme. The ideal candidate is an experienced technologist who thrives on end‑to‑end delivery — from front‑end experience optimisation to scalable, observable, and secure backend design.

Role Overview

As a Senior Software Engineer, you’ll play a pivotal role in designing, implementing, and maintaining modern, high‑performance web applications using Next.js, TypeScript, and GraphQL. You’ll operate within an agile delivery team, collaborating closely with architects, product owners, and DevOps engineers to ensure robust, maintainable, and accessible software delivery aligned to enterprise standards.

This is a full‑stack role that demands strong technical judgment, a focus on developer experience and testability, and a deep understanding of modern front‑end and backend integration patterns.

This is a delivery‑critical role, and immediate availability (or short notice period) is highly desirable.

Requirements

Design and develop full‑stack web applications using Next.js 13/14 (App Router), React 18, and TypeScript.

• Implement performant, accessible, and responsive UI components aligned with WCAG 2.2 AA standards.
• Architect, document, and evolve GraphQL schemas, resolvers, and contracts, ensuring consistent API design and validation.
• Build and optimise PostgreSQL data models, including schema migrations, indexing, and query tuning.
• Design serverless event‑driven backends using Cloud Functions (GCP) and Pub/Sub, following principles of idempotency and least‑privilege access.
• Maintain code quality through TDD, static analysis, automated testing, and CI/CD pipeline discipline.
• Implement observability through structured logs, metrics, and distributed tracing with OpenTelemetry.
• Contribute to continuous improvement of DevSecOps practices — from OAuth/OIDC security to SonarCloud quality gates and threat modelling.
• Participate in agile ceremonies (planning, stand‑ups, retrospectives) and maintain close communication with stakeholders and cross‑functional teams.
• Produce clear, maintainable technical documentation, including architecture decision records (ADRs), runbooks, and schema notes.

Must‑Have Technical Skills

Frontend

• State management: React Query / Zustand
• Web performance optimisation (Core Web Vitals, code‑splitting, caching/CDN)
• Accessibility: Semantic HTML, ARIA, WCAG 2.2 AA, automated axe checks, accessibility E2E tests in CI

GraphQL

• Schema and resolver design
• Contract testing and schema evolution

Data Layer

• PostgreSQL schema design and migrations (e.g., Prisma)
• Index optimisation, query tuning
• Data versioning and audit models
• GCP Cloud Functions or equivalent (AWS Lambda/Azure Functions)
• Idempotent worker patterns, secure secrets management, and IAM best practices

Testing & Quality

• Vitest and React Testing Library for unit/integration tests
• Playwright for critical‑path E2E automation
• Branch protections and CI/CD enforcement
• SonarCloud quality gates (coverage, duplication, SAST)
• Dependency and secret scanning

Security

• OWASP ASVS principles, input validation
• Threat‑modelling and mitigation for high‑risk stories

Observability & Release

• OpenTelemetry for logs/metrics/traces
• Feature flags and safe rollout strategies
• Automated rollback and release pipelines

Responsibilities

• Collaborative pairing and mobbing where needed to unblock complex issues.
• Strong documentation culture – maintain runbooks, ADRs, and schema documentation to support continuity.
• Transparent communication of progress, blockers, and risks to stakeholders.

Nice‑to‑Have Domain Skills

• Collaborative editing technologies (e.g., CRDTs such as Yjs)
• Experience with rich‑text editors (Slate, Tiptap)
• Storybook and design system integration
• Light experience with GraphQL federation
• Familiarity with Infrastructure as Code (IaC) principles

Profile & Attributes

• Demonstrated ability to take ownership of complex technical solutions end‑to‑end.
• Pragmatic and delivery‑focused mindset with a deep appreciation for testing and maintainability.
• Passionate about performance, accessibility, and clean code principles.
• Excellent communicator, comfortable working across distributed, multi‑disciplinary teams.
• Strong commitment to continuous learning, mentoring, and improvement.

Qualifications & Experience

• Bachelor’s degree (or equivalent experience) in Computer Science, Engineering, or related field.
• Minimum 5+ years of professional full‑stack engineering experience.
• Proven track record of delivering complex web applications in TypeScript/React/GraphQL environments.
• Prior experience with cloud‑native serverless architectures preferred.

Why Join VE3

• Be part of a rapidly growing digital innovation firm working across high‑impact sectors.
• Work with modern tech stacks and public‑sector‑grade security and governance.
• Flexible hybrid working model, with access to office in Maidenhead.
• Supportive, collaborative environment focused on engineering excellence, continuous improvement, and professional growth.
• Opportunities to contribute to VE3’s internal accelerators, open‑source projects, and AI‑enabled platforms.