Relevance AI is seeking a Staff Backend Software Engineer to join our Builders team. You will be responsible for the core builder experience on our platform, designing and operating scalable back-end systems that power AI agent and workflow builders. This is a high-visibility role with significant autonomy to shape architecture and deliver robust enterprise-grade capabilities.
What You'll Do
- Design, build, and operate scalable back-end systems that power AI agent and workflow builders.
- Own mission-critical services and infrastructure, delivering impactful features from ideation through to production.
- Push the boundaries of applied AI by enabling new agent capabilities, workflow orchestration, and system behaviours.
- Shape how we build by influencing engineering standards, architecture, and processes as we scale.
- Mentor and support engineers across the team, raising the bar for technical quality and ownership.
- Set and uphold high standards for code quality, performance, reliability, and security.
- Collaborate closely with product, design, and leadership to align technical direction with business outcomes.
What We're Looking For
- 6+ years of hands-on software engineering experience, ideally within fast-paced, high-growth tech environments.
- Strong experience designing, building, and maintaining production back-end systems.
- Evidence of operating at Senior+ scope—driving architecture, mentoring teams, and influencing across multiple squads or projects.
- Deep technical proficiency in modern web technologies, ideally TypeScript, Node.js, and cloud infrastructure (AWS preferred).
- Thrive in dynamic, high-performance startup settings and comfortable with ambiguity, rapid iteration, and taking initiative.
- Demonstrated ability to take full ownership of projects, solve complex problems, and consistently deliver high-quality, impactful results.
- Deep interest in artificial intelligence and excitement to build innovative, category-defining products.
- Regularly leverage AI tools and technologies in your workflow, and stay up-to-date with the latest advancements to boost productivity and innovation.
Nice to Have
- Experience building systems for enterprise or high-scale users.
- Contributions to open-source projects.
- Hands-on experience with LLMs, agent workflows, or AI infrastructure.
Technical Stack
- Frontend: Vue.js, Nuxt, Typescript
- Backend: Express.js, Node.js, Typescript
- Database: MongoDB, PostgreSQL
- Cloud Infrastructure: Vercel, AWS (Lambda, Batch, CloudWatch), Terraform
Team & Environment
You will join the Builders team, responsible for the core platform capabilities. We operate in a high-trust, low-ego environment that fosters collaboration, curiosity, and creativity.
Benefits & Compensation
- ESOP – Employee Stock Ownership Plan
- AI Productivity Benefit – Get up to $1200 USD/year to spend on AI tools, courses, and learning resources
- Parental Leave – 12 weeks of paid parental leave for all eligible new parents, and an additional 6 weeks for the birthing parent
- Milestone Merch – Customised Relevance AI swag for work anniversaries
- Food, Drinks & Community – Free breakfasts, healthy snacks, fully stocked fridge, team lunches (Thursday and Friday), Uber Eats dinners, regular catered office meals, community events
- Quarterly Team Events
- Social Clubs
- Sonder EAP – 24/7 mental health and wellbeing support
Work Mode
This is a hybrid role based in Sydney, AU.
Relevance AI is an equal opportunity employer.
