Principal Full-Stack Engineer (Java/React) Hybrid Equity

SR2 | Socially Responsible Recruitment | Certified B Corporation™; Greater London; Hybrid; GBP 100,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

Bonus

Equity

Hybrid working with flexibility

Strong engineering culture

Job summary

A technology recruitment firm is looking for a Principal / Lead Full Stack Java Developer in London. The role involves designing and delivering scalable software systems utilizing Java and React, mentoring engineers, and defining technical solutions. Required experience includes strong architectural judgement, microservice architecture, SQL and NoSQL databases, and cloud experience. The position offers hybrid working flexibility, a competitive salary, and an influential role with real technical ownership.

Qualifications

• Senior engineer with architectural judgement.
• Experience in full-stack environments.
• Strong focus on testing strategies and automation.

Responsibilities

• Lead the design and delivery of scalable software systems.
• Define architecture and service boundaries.
• Work hands-on across the stack with Java/Spring and React.
• Mentor engineers and lead technical discussions.

Skills

Java

React

Microservice architectures

Domain-Driven Design (DDD)

SQL and NoSQL databases

Testing strategies

Containerisation and cloud experience (Docker, Kubernetes, AWS)

Mentoring

Tools

AWS

Docker

Kubernetes

Job description

A technology recruitment firm is looking for a Principal / Lead Full Stack Java Developer in London. The role involves designing and delivering scalable software systems utilizing Java and React, mentoring engineers, and defining technical solutions. Required experience includes strong architectural judgement, microservice architecture, SQL and NoSQL databases, and cloud experience. The position offers hybrid working flexibility, a competitive salary, and an influential role with real technical ownership.