Full Stack AI Software Engineer

At Sonder, we believe that every person deserves to feel safe, supported, and empowered to be at their best - wherever they are. That’s why we’re redefining workplace health, safety, and wellbeing through a seamless blend of technology and human expertise. Sonder’s mobile platform provides 24/7, real-time support from a dedicated team of safety, medical, and mental health professionals - ensuring that our members receive immediate care when they need it most. In critical situations, we go beyond digital support, offering on-the-ground assistance to manage time-sensitive incidents.

By harnessing real-time insights, we enable organisations to take proactive steps toward a healthier, safer future, which leads directly to tangible bottom-line business outcomes.

An Exciting Time to Join Sonder! 

Since our founding in 2017, Sonder has experienced rapid growth, expanding operations across Australia, New Zealand, and the UK. Backed by Australia’s leading venture capital firms, Seek and Blackbird, we are well-capitalised and on a mission to scale globally, partnering with corporations, educational institutions, and government agencies to transform workplace wellbeing at scale. Our impact and scale: 1,000,000+ members across multiple countries 200+ team members, plus an extensive network of on-the-ground responders If you’re passionate about using technology and human expertise to drive meaningful change, join us in shaping the future of workplace wellbeing!

About the Role

As our Full Stack AI Software Engineer, you’ll design, build, and scale the technology that powers Sonder’s platform, with a particular focus on incorporating AI-driven solutions and intelligent agents into our products. You’ll work across the stack, from intuitive front-end experiences to robust, high-performing back-end systems, while experimenting with and embedding AI capabilities that enhance how our members receive support.

Who We’re Looking For

You’re an adaptable engineer who thrives on solving complex problems and exploring new technologies. You’re equally comfortable shipping production-ready features, improving scalability, and experimenting with AI/ML/LLM models to bring intelligent automation into products. You’re collaborative by nature and want to build technology that makes a tangible difference in people’s lives.

What You’ll Be Doing

• End-to-end engineering: Build and maintain scalable features across front-end and back-end systems, ensuring performance, security, and reliability.
• AI integration: Design and implement AI-powered features, including conversational agents, intelligent triage, and predictive systems that improve user experiences.
• Experimentation & prototyping: Rapidly test AI models, frameworks, and APIs to evaluate their effectiveness, and bring successful concepts into production.
• Collaboration: Work with product managers, designers, data scientists, and other engineers to define opportunities where AI can add value.
• System design & architecture: Contribute to technical discussions and help shape Sonder’s platform to support large-scale, AI-enabled services.
• Quality & reliability: Write clean, testable code, and champion secure coding, observability, and best practices in CI/CD.
• Knowledge sharing: Mentor junior engineers and contribute to building a culture of continuous learning and improvement.

What You Bring to the Team

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent professional experience.
• 3+ years of experience in full stack software engineering, with exposure to AI/ML technologies.
• Strong skills in at least one front-end framework (e.g., React, Angular, or Vue) and one back-end framework/language (e.g., Node.js, Python, Java).
• Experience designing and consuming APIs (RESTful and/or GraphQL).
• Familiarity with AI/ML frameworks and APIs (e.g., TensorFlow, PyTorch, OpenAI, Hugging Face, LangChain).
• Hands-on experience with cloud platforms (AWS, GCP, or Azure) and modern DevOps practices.
• Strong grasp of databases (SQL and NoSQL), distributed systems, and performance optimisation.
• Excellent problem-solving skills, with a bias for action and continuous improvement.
• The right to work full-time in Australia.

Why Join Sonder?

• Hybrid and flexible working – strike the right balance for your life and productivity
• Free Sonder app access for you and your family – 24/7 health, safety and wellbeing support
• 2 days study leave
• Paid parental leave – 12 weeks for primary carers and 4 weeks for secondary carers, with a supportive return-to-work program
• Employee Share Option Plan (ESOP) – share in Sonder’s success
• Wellbeing fund – $250 per year to spend your way
• Novated leasing and salary packaging options
• Weekly team perks – free coffee Tuesdays, catered lunch Thursdays, and a dog-friendly office
• Volunteer leave – 2 days per year to support causes that matter to you
• Regular social events and team bonding opportunities

Sonder is for Everyone

We’re committed to building a diverse and inclusive workplace. We encourage applications from people of all backgrounds, experiences, abilities and identities. If you need any support with your application or the recruitment process, please reach out – we’d love to hear from you.

Due to the nature of our industry, all Sonder employees are required to complete a National Police Check and Working With Children Check.