Senior Backend Engineer (TypeScript / Node)

Location City of London
Discipline: Connect AI, Software Development
Job type: Permanent
Salary: £70,000 – £80,000
Contact name: Sean Murphy

Contact email: sean@connectgroup.ai
Published: about 5 hours ago

🚀 Senior Backend Engineer (TypeScript / Node)

London (Hybrid) | High-Growth Product Company

💡 Why this role?

This isn’t a typical backend role.

You’ll own and shape core backend systems in a scaling product business—driving improvements in architecture, reliability, and data integrity, not just shipping features.

Working directly with a strong Lead Engineer, you’ll help raise the engineering bar across the company.

🔧 What you’ll be doing

  • Build and scale Node.js / TypeScript services & APIs

  • Own backend problems end-to-end (design → build → production)

  • Improve testing, code quality, and system reliability

  • Design robust data & integration workflows (APIs, webhooks, pipelines)

  • Work with Postgres & MongoDB (modelling, performance, migrations)

  • Drive observability, monitoring & production stability

  • Contribute to engineering standards & mentorship

🎯 What they’re looking for

  • Strong experience with TypeScript / Node.js backend systems

  • Proven ability to design scalable, well-structured APIs

  • Solid Postgres experience

  • Engineers who care about:

    • Clean, maintainable systems

    • Reliability & performance

    • Owning problems fully

Bonus points for:
Frameworks (NestJS / Fastify), AWS exposure, event-driven systems, or experience improving engineering standards in scaling teams.

📈 What success looks like

Within 3–6 months:

  • You’ve taken ownership of key systems

  • Reduced production issues

  • Introduced meaningful testing improvements

  • Stabilised a critical data/integration workflow