Senior Java Full-Stack Engineer – Tech Lead & Client Liaison

83zero Ltd; Greater London; Hybrid; GBP 60,000 - 70,000; Full time

Benefits offered by this job

Healthcare options

Hybrid work model

Job summary

83zero Ltd in the United Kingdom is seeking a Senior Java Full Stack Engineer with strong backend and frontend experience, plus proven leadership and client-facing skills to deliver enterprise digital solutions.

Design and build Java/Spring Boot microservices and React UIs, mentor teams, collaborate with clients and stakeholders, and drive REST APIs, cloud, and CI/CD initiatives. Hybrid role (1–2 days/week) with base locations London, Bristol, Manchester or Glasgow; SC eligibility required.

Qualifications

• Experience building RESTful microservices with Java and Spring Boot.
• Frontend experience with React, JavaScript/TypeScript, HTML/CSS.
• Proven leadership or mentoring of development teams.
• Strong stakeholder management and client-facing communication.
• Experience with AWS or Azure cloud platforms.
• Experience with REST API design and integration.
• Familiar with Git-based workflows.
• Experience with NoSQL MongoDB and PostgreSQL.

Responsibilities

• Design, develop and maintain scalable microservices with Java and Spring Boot.
• Build responsive web apps using React and TypeScript.
• Provide technical leadership and guidance to teams.
• Serve as a point of contact for clients and stakeholders.
• Translate business needs into technical solutions.
• Develop and integrate REST APIs and cloud-native apps.
• Own full SDLC from design to deployment and support.
• Collaborate in Agile teams to deliver high-quality software.
• Contribute to CI/CD pipelines and DevOps practices.

Skills

REST microservices

Java & Spring Boot

React Frontend

TypeScript

Leadership

Stakeholder management

Client-facing communication

AWS or Azure

Docker

CI/CD (GitLab CI / GitHub Actions /JEN

Agile methods

Terraform

MongoDB

PostgreSQL

Tools

Git

GitHub

GitLab

Docker

Docker Compose

Terraform

Jenkins

GitHub Actions

Kubernetes

Job description

83zero Ltd in the United Kingdom is seeking a Senior Java Full Stack Engineer with strong backend and frontend experience, plus proven leadership and client-facing skills to deliver enterprise digital solutions.

Design and build Java/Spring Boot microservices and React UIs, mentor teams, collaborate with clients and stakeholders, and drive REST APIs, cloud, and CI/CD initiatives. Hybrid role (1–2 days/week) with base locations London, Bristol, Manchester or Glasgow; SC eligibility required.