Senior Software Engineer

Tact; England; Hybrid; GBP 60,000 - 75,000; Full time

Job summary

A tech-for-good startup in London is seeking a Senior Software Engineer to join their growing team. You will work closely with the CTO, taking ownership of backend systems and helping build and scale the platform using Python and React. The ideal candidate has at least 3 years of experience in a fast-paced environment and strong knowledge of AWS. The role offers a competitive salary of up to £75k, along with benefits like 27 days holiday and share options.

Benefits

27 days holiday plus bank holidays

Share options

Qualifications

• 3+ years of experience with Python and React.
• Strong AWS knowledge.
• Experience in startups or fast-paced product teams.
• Comfortable owning projects end-to-end.
• Experience working with APIs.

Responsibilities

• Work closely with the CTO and take ownership of key backend systems.
• Build and scale the platform as the company grows.

Skills

Python

React

AWS

API Development

Tools

AWS Lambda

DynamoDB

Job description

I’m working with a tech-for-good startup that’s looking for a Senior Software Engineer to join their growing team!

Who are they?

This ambitious startup is on a mission to make clean transport more accessible. Fresh off a £700k pre‑seed raise, they’re building technology that helps organisations optimise how their vehicles are powered cutting both costs and environmental impact.

They offer two core platforms that give businesses access to one of the largest public charging networks in Europe, covering hundreds of thousands of chargers. The team is based in central London and works hybrid, with two days a week in the office.

What will you be doing?

As the fourth developer and working closely with the CTO, you’ll work across the full stack with Python and React. You’ll take ownership of key backend systems and play a big part in building and scaling the platform as the company grows.

What are the requirements?

• ✅ 3+ years’ experience with Python and React
• ✅ Strong AWS knowledge
• ✅ Experience in startups or fast‑paced product teams
• ✅ Comfortable owning projects end-to-end
• ✅ Experience working with APIs
• ✅ Bonus : AWS Lambda / DynamoDB experience

They’re offering up to £75k, plus great benefits including 27 days holiday (plus bank holidays) and share options.

If this sounds like you, send your latest CV to G.Bergonzi@tact‑it.co.uk and we can set up a call