Full-Stack Engineer — Platform Performance

Freelancer.com; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity with PHP, Python, or Go. Join us to make a significant impact on a platform that connects millions worldwide.

Benefits

Mentorship

Exposure to internet-scale challenges

Quarterly hackathons

Qualifications

• 2–4 years of professional experience as a full-stack or frontend engineer.
• Solid experience with Angular and TypeScript.
• Comfort working with backend technologies like PHP, Python, or Go.
• A good understanding of frontend performance optimisation techniques.

Responsibilities

• Identify and solve performance issues across both frontend and backend.
• Optimise page load speed, rendering performance, and API response times.
• Contribute to design system and build reusable UI components.
• Help maintain scalable backend systems for high-performance APIs.
• Collaborate with cross-functional teams on usability and accessibility.

Skills

Angular

TypeScript

PHP

Python

Go

Frontend performance optimisation

RESTful API design

Automated testing

Job description

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity with PHP, Python, or Go. Join us to make a significant impact on a platform that connects millions worldwide.