Senior Software Engineer

Company: Tact
Apply for the Senior Software Engineer
Location: Greater London
Job Description:

Want to build software that powers real-world, high-value trading operations at global scale?

I’m currently working with a specialist tech consultancy that builds critical software for large global companies. They’re hiring a Senior Software Engineer to join their team and help develop a live trading platform for a major international business.

You’ll play a key role in designing and delivering a large-scale trading platform, contributing to both frontend and backend development with a 60% frontend leaning.

This is a senior-level position with meaningful input into system design, architecture, and engineering standards.

What will you need?

  • ✅8+ years of professional software development experience
  • ✅3+ years hands‑on with TypeScript, including Node.js and React
  • ✅Strong frontend capability (React-focused)
  • ✅Senior‑level system design and architecture experience
  • ✅Experience building and maintaining production‑critical systems

What’s in it for you?

  • Work on a live, commercially critical trading system
  • Influence architecture and technical direction
  • Join a high‑calibre engineering environment
  • Exposure to complex, real‑time enterprise systems
  • Long‑term permanent opportunity with stability

This is a hybrid role, twice a week in the office in Waterloo.

On offer is up to £85,000 plus a 10% bonus and a strong benefits package.

Does this sound like you? Click “easy apply” and I’ll be in touch!

#J-18808-Ljbffr…

Posted: February 28th, 2026