This job is no longer available
This job expired on 19/07/2026. It no longer accepts applications.
Backend Engineer
Happl · Londres
Job description
About the role
Happl is building an AI‑first platform that streamlines employee benefits, allowances, payments and wellbeing. As a Backend Engineer you will design, develop and scale the core services that power this global solution.
Key responsibilities
- Design and scale backend architecture for a global, AI‑first benefits platform.
- Build and own core services covering benefits, allowances, payments and reporting.
- Develop scalable data models and ensure data integrity across systems.
- Improve platform reliability, performance, security and observability.
- Automate workflows and rule‑based processes to streamline complex operations.
- Collaborate with product, frontend, data and customer teams to deliver end‑to‑end features.
- Write clean, well‑tested, production‑ready code and contribute to architecture decisions.
Required profile
- 3+ years of experience as a Backend or Software Engineer.
- Strong ownership mindset and ability to thrive in fast‑moving environments.
- Clear communicator comfortable with both technical and non‑technical stakeholders.
- Proactive, detail‑oriented and comfortable taking responsibility for production systems.
Required skills
- Modern backend languages and frameworks: Typescript, Golang.
- API design and consumption: REST, event‑driven architectures.
- Database expertise: SQL, PostgreSQL and data modelling.
- Cloud infrastructure and CI/CD workflows.
- Experience integrating third‑party services.
- Use of AI tools (e.g., ChatGPT, Claude) in development workflows.
What we offer
- Opportunity to shape the future of employee benefits technology.
- Competitive base salary and commission structure.
- Meaningful equity in an early‑stage, high‑growth startup.
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Happl
Londres