Senior AI Engineer
Relevance AICouncil of the City of Sydney, New South Wales, Australia12 days ago
Job description4+ years in full-stack software development, with practical and production-ready AI applications or features that utilise Gen AI / LLMs / RAG. Strong programming skills in Python and JavaScript, including experience using AI-assisted coding tools. Deep understanding of foundational models, prompt engineering, and fine-tuning techniques. Understanding of software design, service architecture, and scalable systems. Passion for building AI-enhanced user experiences, not just theoretical ML solutions. Prior start-up or tech company experience is a plus—especially where you’ve worn multiple hats or shaped early products. Bonus : Side projects or open-source contributions involving building AI agents, RAG pipelines, or open-source LLM tooling. Typescript (Node.js) Python React / Vue.js Express.js LLMs Work at the forefront of AI with a nimble team that is constantly pushing boundaries. We encourage and celebrate ideas that drive our mission forward. Five core values : truth-seeking, empathy, customer focus, rapid iteration, and building memories. High-trust, low-ego environment with competitive salaries, equity, and opportunities for growth. Well-funded by leading investors, including Bessemer Venture Partners, Insights Partners, Peak XV, and King River Capital. As an early team member, you’ll help shape our culture, ways of working, and benefits as we grow. ESOP – Employee Stock Ownership Plan AI Productivity Benefit – Up to $1200 USD / year for AI tools, courses, and learning resources Parental Leave – 12 weeks of paid parental leave for eligible new parents, with an additional 6 weeks for the birthing parent Milestone Merch – Company swag for work anniversaries Food, Drinks & Community – Free breakfasts, snacks, team lunches, Uber Eats dinners, and regular catered office meals Quarterly Team Events Social Clubs Sonder EAP – 24 / 7 mental health and wellbeing support Mid-Senior level Full-time Software Development
About Us
At Relevance AI, we’re building the home of the AI workforce.
The Role
Senior AI Engineer (fullstack) to join our team and build next-generation AI-powered applications. This role is ideal for individuals excited by the intersection of software development and applied AI. You’ll work on real, user-facing AI features—powering workflows, tools, and experiences that leverage large language models and agents across the product. Expect to dive deep into prompt engineering, AI-powered backend services, and full stack implementations (APIs, microservices, and frontends alike).
You’ll collaborate closely with a visionary product and engineering team, contribute to our open-source SDKs, expand internal agent frameworks, and shape the future of AI agent interfaces and infrastructure.
Your impact
- Develop Agents and Multi-agent systems : Design and implement AI agents and extend existing agents with new capabilities, including managing the agent’s context (using techniques like sub-agents, retrieval-based context management, sliding context windows, etc.).
- Develop Tools for agents : Build complex tools for agents (e.g., computer use, browser use).
- Multi-agent orchestration and tool calling : Research and develop systems for agent collaboration and tool calls.
- Fullstack development : Build and maintain production-grade APIs and AI-powered features, from backend services to user-facing experiences.
- Evaluate and improve : Evaluate AI performance, iterating on prompts, agent tools, and orchestration to improve output quality and reliability.
What We’re Looking For
Our Tech-Stack
Why Join Us?
Benefits (Australia)
Seniority level
Employment type
Job function
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Senior Ai Engineer • Council of the City of Sydney, New South Wales, Australia
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