Senior Frontend Engineer

Simple Machines; Greater London; Hybrid; GBP 55,000 - 80,000; Full time

Benefits offered by this job

Work on interesting, high-impact problems

Modern platforms to develop

Surrounded by senior engineers

Autonomy and room to grow

Job summary

Simple Machines is seeking a Senior Frontend Engineer in London to work on innovative projects involving complex data systems. You'll collaborate with a talented team to develop user interfaces for machine-learning applications.

The ideal candidate will have strong skills in React.js, Redux, and Typescript, with a consultative approach to software development. This hybrid, full-time role offers opportunities to work on impactful solutions while being part of an open and growth-oriented environment.

Qualifications

• Strong experience with frontend development tools including React.js, Redux, Tailwind, and Typescript.
• Past project experience with large scale web services.
• Experience with unit and integration testing for React.

Responsibilities

• Design user interfaces for a machine-learning based marketing system.
• Implement designs using React.
• Integrate with APIs from backend development.

Skills

React.js

Redux

Tailwind

Typescript

Unit and integration testing

Job description

Simple Machines is a leading independent boutique technology firm with a global footprint across London, Sydney, New Zealand and Poland. We operate at the intersection of data, AI, machine learning, data engineering, and software engineering—building bespoke platforms and products that turn complex data into real-world outcomes.

We work with enterprises, technology companies, and governments to help them better understand their organisations, customers, and citizens. Our teams design and build large-scale data platforms, intelligent systems, and high-impact software products.

The Role

As a Senior Frontend Engineer at Simple Machines, you'll be at the heart of groundbreaking projects, collaborating closely with both our talented internal team and forward‑thinking clients. In this hands‑on role, you'll drive the development of sophisticated, scalable solutions, working with our high‑performing engineering teams to deliver user interfaces for products used by data science and ML teams.

If you're passionate about solving complex problems and pushing the boundaries of what's possible, this role offers the perfect platform for you to make a real impact.

Key Responsibilities

• Design sophisticated user interfaces for use by business stakeholders to manage a machine-learning based marketing system
• Implement design as a web application using React
• Integrate with APIs provided by the backend development team
• Contribute to solution design workshops to advise on implementation approaches
• Partner with client stakeholders and team members to gather business requirements, collaborate on design decisions, and translate them into technical and design requirements
• Operate within an iterative delivery team using Agile delivery tools and practices

Hybrid · Full-time · London, UK

Requirements

Skills & Experience

• A consultative approach to software development and software engineering
• Strong experience with frontend development tools including React.js, Redux, Tailwind, Typescript
• Past project experience with large scale webservices
• Previously designed user interfaces that catered for complex business use cases
• Experience eliciting business requirements and translating them into technical and design requirements
• Familiarity with various git workflows and ability to tailor them to project needs
• Experience with unit and integration testing and test automation for React
• A passion and proven background in picking up and adopting new technologies on the fly

Benefits

• You’ll work on interesting, high-impact problems
• You’ll build modern platforms, not maintain legacy mess
• You’ll be surrounded by senior engineers who actually know their craft
• You’ll have autonomy, influence, and room to grow