Software Engineer, Backend Developer

The role

You'll build and own the backend systems Letly runs on — the software behind every viewing, tenancy, certificate, rent payment and repair. These are systems where correctness, reliability and scale are non-negotiable
: real people's money, homes and legal exposure are on the line.

This is one role hiring at every level, junior to staff — we level on the scope you own, not years served. At junior you ship features inside services others own, with review, mentoring and real production responsibility from the first month — the fastest engineers here ask early and close the loop quickest. At mid you own features and services end-to-end.

At senior you own systems others build on — you make the architecture calls, set the patterns, and raise the bar around you. At staff you own the technical direction of a domain: you decide what gets built and how, you unblock other engineers, and you answer for how those systems behave under load.

• Money movement. Rent, deposits and payouts through pooled client-money accounts — idempotent processing, split-settlement, exactly-once across service and bank boundaries.

• Reconciliation & bookings. A penny-accurate, self-healing ledger reconciling bank activity across thousands of tenancies; contended scheduling — viewings, certs, photography, maintenance against finite slots and vendor availability.

• Event-driven consistency. Services coordinating over Pub/Sub — sagas across offer contract tenancy payment with no distributed transaction to lean on. LLM tool calling, deterministic API calls, and other intra- and inter-service communications all running across the same coordination system.

• AI harnesses in production. Deploying agentic AI into real-world operational settings — acting on real money, tenancies and legal exposure, with the guardrails, observability and correctness that demands. Non-deterministic LLM working within compliant, secure deterministic software.

We build on NestJS + Type Script on GCP / GKE
, with MongoDB
, Redis and GCP Pub/Sub
.

You don't need to arrive fluent in it. We hire strong backend engineers who've built production systems with any robust framework —
Java/Spring Boot, Go, Kotlin, C#/.NET, Python (Django/FastAPI) or Ruby on Rails — and can ramp into Type Script fast. We care that you've built and operated real backends, not which language you did it in.

Small, well-factored services.
TDD and DDD as defaults. Trunk-based CI/CD — you ship to production and own it, with tests, observability and clean rollbacks. Lean frameworks, readable code, and we move fast because the tests and boundaries let us.