Full-Stack Developer & Development Team Lead

AWTG Ltd; Greater London; On-site; GBP 85,000 - 130,000; Full time

Job summary

AWTG Ltd is seeking an experienced Full-Stack Developer & Development Team Lead to build and maintain modern web applications, combining frontend and backend expertise with hands-on coding.

You will lead a team, review work, set technical standards, support architecture decisions, and ensure reliable delivery, while contributing directly to production code using TypeScript, React/Next.js, Node.js/NestJS and relational databases. This role requires strong communication and mentoring.

Qualifications

• Minimum 5–7 years of professional software development experience.
• At least 2 years of technical leadership or development team leadership experience.
• Strong experience with TypeScript and JavaScript.
• Frontend experience with React/Next.js and backend with Node.js/NestJS.
• Experience designing and integrating REST APIs and relational databases.

Responsibilities

• Design, develop, test, and maintain scalable web applications across frontend and backend systems.
• Build modern applications using TypeScript, React/Next.js, Node.js/NestJS, relational databases and APIs.
• Lead development team, review technical work, and ensure coding standards.
• Develop automated tests including unit, integration, API and end-to-end tests.
• Collaborate with Product, QA, AI/ML, Security and other teams to plan and deliver.

Skills

Software development

Technical leadership

TypeScript

JavaScript

React

Next.js

Node.js

NestJS

REST APIs

PostgreSQL

MySQL

ORMs (Prisma/TypeORM/Sequelize)

Redis

Git & code reviews

Testing (Jest/Cypress/Playwright)

Security & auth

CI/CD

Architecture design

Education

Bachelor’s or Master’s degree in Computer Science / Software Engineering

Equivalent professional experience

Tools

Prisma

TypeORM

Sequelize

Redis

PostgreSQL

MySQL

Git

Jest

Cypress

Playwright

Job description

We are looking for an experienced Full-Stack Developer & Development Team Lead with strong hands-on experience in building and maintaining modern web applications.

The ideal candidate will combine strong frontend and backend development skills with technical leadership experience. This is a hands-on role where you will contribute directly to production code while also leading the development team, reviewing technical work, maintaining development standards, supporting architecture decisions, and ensuring reliable delivery.

Key Responsibilities

Full-Stack Development

Design, develop, test, and maintain scalable web applications across frontend and backend systems.

Build modern applications using technologies such as TypeScript, React/Next.js, Node.js/NestJS, relational databases, and APIs.

Frontend Development

Develop responsive, accessible, and maintainable web applications using modern frontend frameworks.

Build reusable components, integrate APIs, manage application state, and ensure good performance and user experience.

Backend and API Development

Develop scalable backend services and secure APIs.

Implement business logic, authentication, authorisation, integrations, background processing, validation, and error handling.

Database Development

Design and maintain relational databases using technologies such as PostgreSQL or MySQL.

Work with database modelling, migrations, indexes, transactions, data integrity, and query optimisation.

Development Team Leadership

Lead and support frontend and backend developers while remaining actively involved in hands-on development.

Translate business and functional requirements into clear technical tasks and support developers in resolving technical challenges.

Help ensure development work is delivered consistently and follows agreed technical and coding standards.

Code Review and Development Standards

Review pull requests for code quality, security, performance, maintainability, and testing.

Promote good practices around clean code, architecture, documentation, version control, testing, and maintainable software design.

Testing and Quality

Develop and maintain automated tests including unit, integration, API, and end-to-end testing.

Work closely with QA teams to investigate and resolve defects and ensure changes meet agreed requirements before release.

System Design and Performance

Contribute to scalable and maintainable software architecture.

Work with technologies and patterns such as caching, queues, asynchronous processing, background jobs, and distributed services where required.

Identify and resolve application performance issues across frontend, backend, APIs, and databases.

Security and Access Control

Follow secure software development practices.

Implement appropriate authentication, authorisation, role-based access control, data validation, and application security measures.

Team Support and Collaboration

Mentor developers, provide technical guidance, and encourage knowledge sharing across the development team.

Work closely with Product, Business Analysis, QA, AI/ML, Security, and other development teams to support technical planning and delivery.

Skills And Qualifications

• Minimum 5 to 7 years of professional software development experience.
• At least 2 years of technical leadership or development team leadership experience.
• Strong experience with TypeScript and JavaScript.
• Strong frontend experience with React, Next.js, or equivalent technologies.
• Strong backend experience with Node.js, NestJS, or similar frameworks.
• Strong experience designing and integrating REST APIs.
• Experience with PostgreSQL, MySQL, or similar relational databases.
• Experience with ORM technologies such as Prisma, TypeORM, Sequelize, or equivalent.
• Experience with Redis, caching, queues, or asynchronous processing.
• Strong understanding of software architecture and scalable application design.
• Experience with authentication, authorisation, RBAC, and application security.
• Experience with automated testing using tools such as Jest, Playwright, Cypress, or equivalent.
• Strong experience with Git, pull requests, code reviews, and version control best practices.
• Good understanding of software performance, security, and maintainability.
• Strong problem-solving and analytical skills.
• Strong communication and team leadership skills.
• Ability to lead developers while remaining actively involved in software development.

Preferred Experience

• Experience with Next.js, NestJS, Prisma, PostgreSQL, and Redis.
• Experience with multi-tenant SaaS or enterprise applications.
• Experience with OAuth, JWT, SSO, and enterprise authentication systems.
• Understanding of GDPR, accessibility, and secure software development.
• Experience integrating applications with AI/ML or LLM-based services.
• Familiarity with Python, FastAPI, or related technologies.
• Experience with vector databases, knowledge graphs, or AI application architectures.
• Experience mentoring developers and improving development standards and processes.

Educational Requirements

Bachelor’s or Master’s degree in Computer Science, Software Engineering, Computer Engineering, or a related field.

Equivalent professional experience may also be considered.

Working Days

Candidates must be available to work, Monday to Friday on site.