Senior Engineer

Ad fatigue is killing engagement, but we're fixing it. Thanks (thanks.co) is seeking a Senior Engineer to help build our groundbreaking advertising platform - the world's first customer-first ad network. You'll collaborate closely with our founders, CTO, product and engineering teams to execute our vision of advertising that actually delights consumers, not just targets them.

Our ideal candidate will bring a strong background in full-stack development on the NodeJS ecosystem. An understanding of the advertising / marketing industries would also be very beneficial in this role. Most importantly you are a people person.

What you’ll do

• Build impactful software across the stack – designing, developing, testing, and deploying frontend and backend features using modern, cloud-native technologies.
• Shape architecture and technical direction - contributing to system design, technology choices, and scalable infrastructure decisions.
• Collaborate cross-functionally with product, design, and other engineers to gather requirements, scope solutions, and deliver high-quality features.
• Champion engineering best practices including clean code, security, documentation, testing, code reviews, and CI/CD.
• Support and maintain production systems, troubleshooting issues, resolving bugs, and ensuring performance, security, and uptime.
• Communicate openly and clearly with the team, sharing progress, risks, and blockers while contributing to a collaborative and feedback-friendly culture.

What we’re looking for

• Strong, proven experience working on modern TypeScript / Node.js platforms.
• Strong software design and architecture skills, with a history of building scalable and maintainable systems.
• A deep understanding of engineering best practices including CI/CD, testing, documentation, observability, and security.
• Comfort with ambiguity and a desire to help bring structure to evolving systems and processes.
• Pragmatic problem-solving skills, balancing ideal solutions with shipping value quickly.
• Clear communicator who thrives in cross-functional collaboration with product, design, and leadership.
• Strong ownership mindset – someone who actively drives initiatives forward and takes responsibility for outcomes.
• A team-first attitude – humble, kind, and supportive of others.

Nice to have

• Understanding of or experience with adtech or martech - such as ad serving, ranking, attribution, conversion tracking, audience targeting, matching, or DSPs.
• Knowledge of the CloudFlare ecosystem (Workers, Queues, KV, etc.)
• Experience with data analytics, such as ClickHouse and / or similar OLAP platforms.
• Understanding of SRE practices and tooling.

Thanks' tech stack

• Turborepo / NodeJS / TypeScript
• React / NextJS / React Native
• Prisma / PlanetScale
• CloudFlare (Workers, Queues, KV, etc)
• Vitest / Playwright
• GitHub Actions
• DataDog / Sentry / OpenTelemetry
• Statsig

Why Thanks?

We're not just another adtech startup - we're rewriting the rules. Thanks is a Sydney-based, global-from-day-one company on a mission to kill ad fatigue and create advertising that consumers actually love. Our industry-leading engagement doesn't just capture attention; it delights, rewards, and transforms how people experience ads.

Here's why you'll love working with us:

• Direct Impact: Your work will shape our products and trajectory as we scale rapidly.
• Ownership and Autonomy: We'll give you the right tools, freedom, and collaborative environment to succeed and achieve your biggest goals.
• Competitive Package: Enjoy a competitive salary, and stock options.
• Growth Trajectory: Thrive in an environment of rapid change, constant challenges, and endless opportunities.
• Comprehensive Benefits: Enjoy a benefits package designed to support your needs and wellbeing.
• Flexibility: Work flexibly, with two required days (Tuesdays and Thursdays) at our Bridge Street office in Sydney.

We're tackling big challenges in advertising technology by creating our own ecosystem - not copying what exists. If you're excited to innovate, influence, and grow at a rapidly scaling company, we'd love to hear from you - let’s build something extraordinary together!