Mid-Senior Backend/Infrastructure Engineer - *AI Native/Building AI Co-Workers*

Mid-Senior Backend & Infrastructure Engineer

- Help Build the Backbone of an AI-Native Company

AI Staff for real businesses. Real products. Real scale. Australian company.

Cebu-based.

We're not building another AI demo. We're building AI Staff — named team members that answer the phones, quote jobs, book work, chase invoices and handle real customers for businesses every day.

Not agents. Not automations. Not a widget. Actual AI staff that businesses rely on to run.

That means real-time voice AI, running live, at scale, where a half-second of latency or a dropped call is the difference between a business winning a job or losing it.

he systems you build here get used the moment you ship them.

We're looking for a Senior Backend / Infrastructure Engineer to own the backend and infrastructure foundation this whole thing runs on.

{{This is a Cebu-based role. You must be located in Cebu or able to reliably commute to Cebu City.}}

What you'll actually be doing:

You'll lead backend development with a heavy focus on infrastructure, scale and reliability. Day to day that looks like:

• Designing, building and maintaining scalable backend services that sit under live AI phone systems.
• Owning the big infrastructure calls — cloud, containers, orchestration, networking, deployment, monitoring, security.
• Building for real-time performance where latency and uptime genuinely matter.
• Making systems observable, resilient and ready for serious scale.
• Sharpening deployment workflows, CI/CD pipelines and developer experience so the whole team ships faster.
• Defining backend architecture and the engineering standards we build on.
• Debugging gnarly production issues and making the platform more robust every week.
• Working shoulder-to-shoulder with the founders and engineers — shipping fast without cutting corners.

What we're looking for:

• 3–5+ years professional software engineering experience.
• Strong backend development in real production environments.
• Substantial hands-on experience with a major cloud provider (AWS, GCP or Azure).
• Solid grasp of containers and container orchestration.
• Experience on products used at meaningful scale — ideally 100k+ monthly active users.
• Good understanding of distributed systems, APIs, databases, networking, queues, caching and reliability.
• Comfortable with CI/CD, infrastructure automation, monitoring, logging and alerting.
• The instinct to dig into deep technical problems and come out with a more robust system.
• A genuine ownership mindset — you can run with autonomy and don't need hand-holding.

We're not after someone who knows how to click around one cloud console. We want someone who understands how systems work under the hood and likes getting their hands dirty building infrastructure that scales.

Nice to have

• Kubernetes, ECS, Cloud Run, Docker, Terraform, Pulumi or similar.
• Event-driven systems, background jobs, queues, workflow orchestration.
• High-volume API platforms or SaaS.
• AI, LLM, voice, automation or agentic systems.
• Security, compliance and infrastructure hardening.
• Startup or scale-up experience.

Who this is for

You care how the system behaves in production — scale, latency, reliability, security, deployment safety, cost. You get a kick out of hard problems and you want to be at the front edge of the tech that's reshaping how businesses actually operate.

You're pragmatic, curious and ambitious. You can move fast, but you know when to slow down and build it properly. You want to do the best work of your career, on a product real people use — and you want to be measured on what you build, not the hours you sat at a desk.

Be straight with yourself here: this is a high-ownership, high-intensity role at a company with unicorn-level ambition. It moves fast, priorities shift, and we push through hard problems together.

It's a roller coaster — and for the right engineer, that's exactly the appeal. If you're looking to coast, we're not the fit. If you want to help build the technical foundation of the next major AI company, keep reading.

Why join

• Real ownership over backend and infrastructure — you're building the foundation, not maintaining someone else's.
• A flat team where the best idea wins, not the biggest title.
• Genuinely hard technical problems across AI, real-time voice, automation, infrastructure and scale.
• A team that's driven to win and building products used by businesses every day.
• Exposure to a global product and global opportunity.
• Equity / stake options for the right person.

This is a chance to build something that matters, at the ground floor, with the people building it.

If that's the kind of work you've been chasing — hit apply and let's talk.