Senior Backend Software Engineer (AI)

TL;DR

Senior Backend Software Engineer (AI): Building and optimizing core platform systems for agent and workflow builders with an accent on scalability, reliability, and production-ready architecture. Focus on designing backend services, managing data infrastructure, and integrating LLM-based capabilities to power enterprise-grade AI automation.

Location: Must be based in Sydney, AU (Hybrid: 3 days in office required)

Company

hirify.global is an AI-native startup building a unified platform for intelligent agents and automated workflows used by enterprise leaders.

What you will do

• Design, build, and operate scalable back-end systems that power AI agent and workflow builders.
• Own mission-critical services and infrastructure from ideation to production.
• Push the boundaries of applied AI by enabling new agent capabilities and workflow orchestration.
• Influence engineering standards, architecture, and team processes as the platform scales.
• Mentor engineers and raise the bar for code quality, performance, and security.
• Collaborate with product, design, and leadership to align technical direction with business outcomes.

Requirements

• 4+ years of hands-on software engineering experience in high-growth environments.
• Strong experience designing, building, and maintaining production back-end systems.
• Comfortable with ambiguity, rapid iteration, and high-performance startup settings.
• Proven ability to take ownership of projects and deliver impactful results.
• Deep interest in artificial intelligence and building innovative products.
• Proficiency in modern back-end technologies and a commitment to leveraging AI tools for productivity.

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.

Culture & Benefits

• Competitive salary and equity participation through ESOP.
• Annual $1200 USD AI productivity benefit for learning and professional development.
• 12 weeks of paid parental leave for all parents.
• Regular team lunches, catered office meals, and quarterly team building events.
• Access to Sonder 24/7 mental health and wellbeing support.
• Vibrant work environment with social clubs and a high-trust, low-ego culture.

Hiring process

• Talent interview (virtual) and Hiring Manager interview (virtual).
• Technical interviews (onsite).
• Co-founder interview (virtual/onsite).