About Us:
We're on a mission to make subscriber churn a solved problem. Backed by a16z Speedrun, we build AI agents that help consumer subscription brands — like Higgsfield and Promova — retain more users, extend lifetime value, and grow fast. We're an incredibly driven team working on a problem that affects every consumer on the planet. If that sounds like your kind of thing, we'd love to meet you.
Our co-founders are Azamat Khamidov and Benazir Toleubekova. Azamat built a Telegram AI product from zero to five million users in four months, the first acquisition inside Telegram. Benazir received a full scholarship to Beijing University of Technology at 15. Joined Taobao at 17. At Alibaba, architected the core recommendation engine serving 500M daily users.
What You'll Do:
As a Backend Engineer, you will play a central role in building and maintaining the critical backend infrastructure that powers our products. In this position, you will:
- Contribute to designing scalable architectures that support new product features and business requirements.
- Drive the development, deployment, and optimization of backend services, ensuring performance, reliability, and maintainability.
- Collaborate with cross-functional teams to integrate third-party platforms, APIs, and emerging AI technologies.
- Take an active part in the continuous improvement of our engineering standards and development processes.
- Proactively identify and resolve complex technical challenges to ensure stable, secure operations.
What You'll Bring:
- +1 years of professional experience in backend development, with a track record of delivering reliable and scalable systems.
- Advanced proficiency in server-side programming and experience designing database-driven applications.
- Strong grasp of API development, systems integration, and best practices in software engineering.
- Experience building and maintaining environments that scale to serve real users in production.
- An independent and proactive approach to problem-solving, with the ability to drive projects forward.
- Based in San Francisco or able to be here full-time. We're not offering visa sponsorship at this time.
Our Values:
Stewardship: We build for the long term. Every customer, partner, and teammate gets that same commitment from day one.
Trust: Earned through the integrity of our technology, the consistency of our commitments, and the honesty of our communication.
Customer Obsession: We win when our customers win. Every choice and conversation orbits around what makes them stronger.
Excellence: The same standard for the product we ship, the service we give, and the team we build. The bar is the bar.
Family: A constellation, not a single star. We back each other on hard days, celebrate the great ones, and protect the time teammates need to be parents, partners, and humans first.
Life at Sirius:
In-person, in San Francisco: We work side by side, on-site in San Francisco. Proximity helps us move faster, solve harder problems, and build something we're proud of together. Note: we're not able to offer visa sponsorship at this time.
Flexible healthcare: We offer flexible spending to direct your benefits toward what matters most to you and your family.
Own what you build: We're building something real, and we want you to own it.
Lunch, coffee & snacks: Daily lunch, plus coffee, tea, and snacks to keep you going.
Time off that's actually off: Take the time you need to show up as your best self. We mean it.
Company Events: Take the time you need to show up as your best self. We mean it.