Back End Developer

Tiro Partners Limited; England; Hybrid; GBP 103,500 - 126,500; Full time

Job summary

A leading technology startup is seeking a Back-End Engineer in London to build and maintain backend services using FastAPI and Python. This role requires strong skills in developing web applications, alongside a passion for engineering and functional programming. Candidates should have a Bachelor's degree in a relevant field and at least 2 years of experience in a production environment. This position offers hybrid working options and a competitive salary of up to £115,000 plus exceptional bonuses and benefits.

Qualifications

• 2+ years of experience building web applications in a production environment.
• Strong experience with Python and API frameworks (FastAPI, Flask, etc.).
• Genuine interest in engineering and the physical world.

Responsibilities

• Build and maintain backend services using FastAPI and Python.
• Work closely with domain experts to translate complex problems into software features.
• Follow functional programming practices to write testable, composable code.

Skills

Python

API frameworks

Functional programming

Clean code architecture

Education

Bachelor's degree in Computer Science, Engineering, Physics, Mathematics or related technical field

Job description

Pay range

Range provided by Tiro Partners Limited. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Tiro Partners Limited

Location: London, UK (Hybrid)

Type: Full-time

Level: Mid to Senior

About the Role

This startup is building a cutting‑edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to generate, visualise, and explore thousands of design alternatives – faster and more intelligently than ever before.

This company is a spin‑out from one of the UK’s most successful startups, built by top‑tier engineers and developers from industry‑leading teams. We’re looking for a software engineer who enjoys writing clean, functional code and is genuinely passionate about real‑world engineering, not just building software but helping change how things are designed and built.

Tech Stack within the engineering environment:

• Paradigms: event‑driven architecture

Responsibilities

• Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows
• Work closely with domain experts (engineers, designers) to translate complex physical problems into usable software features
• Follow functional programming practices to write testable, composable code
• Own features from idea to implementation to deployment
• Contribute to architectural decisions in a fast‑moving, early‑stage product

Requirements

• Bachelor’s degree in Computer Science, Engineering, Physics, Mathematics, or a related technical field
• 2+ years of experience building web applications in a production environment
• Strong experience with Python and API frameworks (FastAPI, Flask, etc.)
• Comfort or interest in functional programming principles and clean code architecture
• A genuine interest in engineering and the physical world
• Ability to thrive in a startup or agile environment with autonomy and ownership

Seniority level

Mid‑Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Technology, Information and Media

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Back-End Engineer - London - Up to £115,000 Starting Base + Exceptional Bonuses/Benefits

London, England, United Kingdom 1 day ago