Senior Software Engineer

Build the products and platform that power customer-first monetisation.

Thanks is building a customer-first monetisation platform that delivers sustainable growth – for advertisers, publishers, and customers. We’re operating at scale today and entering a phase where execution quality, speed, and sound technical judgment matter more than ever.

We’re hiring a Senior Engineer to design and ship meaningful product improvements across our platform. You’ll independently drive work end-to-end, bring clarity to complex decisions, and consistently deliver at pace in a high-trust, high-impact environment.

This role is hands‑on, product‑minded, and execution‑focused.

What you’ll do

Ship impactful features end-to-end:

Design, build, test, and deploy frontend and backend functionality across our TypeScript / Node / React stack.

Design thoughtful solutions:

Independently design technical solutions within our architecture, clearly communicating trade‑offs while balancing speed, scalability, and long‑term impact.

Own meaningful surface area:

Take responsibility for a subsystem or domain area, ensuring quality, maintainability, and steady improvement over time.

Bring product thinking into engineering:

Challenge scope when needed, contribute to sequencing decisions, and ensure we’re solving the right problems in the right way.

Maintain high engineering standards:

Write clean, well‑tested code, participate actively in code reviews, and contribute to a culture of contextual quality.

Support production reliability:

Troubleshoot issues, resolve bugs, and ensure performance and stability across live systems.

Collaborate openly:

Communicate clearly about progress, risks, and trade‑offs, contributing to a high‑trust, feedback‑oriented engineering culture.

Requirements What we’re looking for

Strong experience building production systems using TypeScript, Node.js, and React

Ability to independently design scalable solutions and clearly communicate technical trade‑offs

Strong software design fundamentals and system thinking

Comfort owning features from problem definition through to production

Pragmatic judgment – you balance ideal architecture with shipping value

Comfort operating in ambiguity and actively creating structure where it’s missing

High emotional intelligence and strong communication skills

Strong internal drive – you take pride in your craft and care deeply about the quality and impact of what you ship

Uses AI thoughtfully to augment problem solving and delivery – accelerating exploration, debugging, and implementation while maintaining high standards for quality, correctness, and ownership

A genuine ownership mindset – you take responsibility for outcomes and follow through

Nice to have

Experience building and scaling production systems in product‑led startup or scale‑up environments

Exposure to adtech, marketplaces, or performance‑driven platforms

Familiarity with Cloudflare (Workers, Queues, KV)

Exposure to data systems such as ClickHouse or similar OLAP platforms

Understanding of experimentation frameworks

Experience contributing to architectural discussions in growing systems

Our stack

Backend – Node.js, TypeScript, Turborepo

Frontend – React, Next.js, React Native

Infrastructure – Cloudflare (Workers, Queues, KV)

Data – Prisma, PlanetScale, ClickHouse

Testing & CI – Vitest, Playwright, GitHub Actions

Observability – Datadog, Sentry, OpenTelemetry

Experimentation – Statsig

Benefits Why Thanks? At Thanks, we’re building a customer‑first monetisation platform that delivers growth without compromise – for advertisers, publishers, and customers alike. We power growth for the world’s leading brands, delivering tens of millions of high‑value “thanks” moments every month.

Real ownership: You’ll drive meaningful product work end-to-end, with trust and autonomy.

Impact you can see: Your work directly influences performance, reliability, and growth.

High standards, low ego: We value thoughtful decisions, clear communication, and strong follow‑through.

Attractive compensation: Including worthwhile equity.

Flexibility with intent: We’re Sydney‑headquartered and value in‑person collaboration, ideally a couple of days per week. That said, we care more about leadership, impact, and outcomes than rigid rules - and we’re open to exceptional candidates across Australia’s east coast.

We’re building something deliberately – not copying what already exists. If you’re excited by product‑led engineering and solving complex problems at pace, we’d love to hear from you.

Let’s build something extraordinary.

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