Senior Engineer, Internal tools

Company

A1 is building a proactive AI smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behavior.

Role

You are the engineering backbone of the internal tools team. Building and maintaining the platforms that every team in the company relies on. Your work directly increases organizational efficiency and enables teams to move faster.

You’ll own systems end-to-end, from scoping and architecture through production deployment and iteration, connecting multiple business systems into a seamless, reliable internal ecosystem.

What You'll Do

Build & Ship

Design, build, and maintain internal platforms and tools that serve People, Finance, Ops, Sales, and Engineering teams.

Own features end-to-end: requirements, architecture, implementation, testing, deployment, and monitoring.

Write clean, well-tested, production-grade code. You hold yourself to the same bar as customer-facing products.

Architecture & Integration

Build API-first integrations across the internal ecosystem — connecting HRIS, CRM, finance platforms, knowledge management, and developer tools into a coherent stack.

Design for reliability, performance, and scale — what you build today must hold as the company grows 5–10x.

Eliminate data silos. Build clean data pipelines that maintain a single source of truth across systems.

Own your services in production: monitoring, alerting, incident response, and post-mortems.

AI & Automation

Build AI/LLM-powered features into internal workflows — automating approvals, knowledge retrieval, reporting, content generation, and operational processes.

Move fast from prototype to production. You know the difference between a demo and a system that works at scale.

Stay current on emerging AI capabilities and proactively identify where they unlock step-change improvements in internal productivity.

Collaboration & Influence

Work directly with business stakeholders to understand pain points and translate them into technical solutions. You don’t wait for a spec — you help shape it.

Pair with and mentor junior engineers. Raise the technical bar through code reviews, design reviews, and leading by example.

Influence technical direction: propose architectural improvements, challenge assumptions, and drive best practices across the team.

What You Will Need

Must-Have

5+ years of professional software engineering experience, with meaningful time spent buildin