Senior Software Engineer

ABOUT ONEWARD Every HR system in use today was built on one assumption: that every worker is a human. That assumption breaks as enterprises deploy AI agents at scale. Oneward is building the HR platform for mixed workforces of people and agents: governed AI agents that work across the HR stacks large companies already run, and the system of record underneath them. We have raised millions of dollars and are building a lean, senior and international team. You will work alongside people who have built products at Deel, Personio, Revolut, N26, SuperAI and Zendesk. WHAT YOU WILL WORK ON Contribute to the platform our AI agents run on: permissions, auditability, evals and the guardrails that make agents safe on sensitive HR data in a multi-tenant environmentA core data model built on an ontology designed to be flexible and customizable for different org structuresIntegrations with the enterprise HR systems our customers already runInfrastructure across EU and US regions, from first commit to production WHAT YOU NEED Experience with modern, statically typed programming languages, ideally TypeScript, with EffectTS as a plusHands-on experience with AWS or GCPInfrastructure as code (Terraform, CDK or similar)You write code with AI every day, and you know how to set up the tests and harnesses that keep AI-written code correctOwnership of the full delivery pipeline: CI/CD, deployments and observability STRONG PLUS Event-driven architecture in production, and familiarity with event sourcingGraph data structures and how they map to knowledge retrieval in intelligent systemsPrevious experience building HR products HOW WE BUILD We are an AI-native engineering team. If coding agents are not already part of how you work every day, this role is not for you. WHY JOIN Hard, unsolved problems where HR, enterprise data and AI agents meetLearn how to build production AI agents from the ground up, with the option to grow into a Forward Deployed Engineer role working directly with enterprise customersA top-tier team that has built and scaled HR and fintech products beforeCompetitive salary and equityWe hire for the long run. This role grows with the company, from the first customers to scale. APPLY Send your CV, GitHub and LinkedIn to careers@oneward.com with a few lines on the system you are proudest of having shipped end to end.