Senior Backend Engineer (Node.js)
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🎯 Senior Backend Engineer (Node.js)
Fully remote. Flexible hours. And a real shot at owning systems used by millions of people. If that's not enough to get you reading further, this probably isn't your role.
About BlueThrone
At BlueThrone, we don’t just build apps.
We take indie mobile products and turn them into global powerhouses.
80M+ downloads, 20M+ MAU, $14M+ ARR - we're rewriting the rules of mobile scaling, and we do it lean.
We move fast, we own our work, and we build things people actually care about. If you want autonomy and real impact, welcome aboard 💙
If you want structure, predictability, a 9–5, or someone to hold your hand - this won't be your vibe.
The product & your role 🎧
You'll be working on one of our flagship products: an analytics-driven music platform that helps millions of people understand their own listening habits - top tracks, artists, and albums, shareable recaps, badges, and social comparisons that turn raw streaming data into something people genuinely obsess over 🎧. It's already loved worldwide, and it's about to grow a lot faster.
As Senior Backend Engineer, you’ll own the systems that power this growth.
This isn’t a maintenance role.
We’re not looking for someone to “keep APIs alive.”
This is a backend-only role. If most of your recent work has been frontend, or an even fullstack split, this isn't the right fit - we need someone whose day-to-day has been backend, in Node.js and TypeScript, for years. Not someone who touches it occasionally.
We’re looking for someone who:
▸ takes initiative,
▸ thrives in fast-changing environments,
▸ isn’t afraid to zoom out to design complex systems or zoom in to perfect a single query.
You'll design and scale backend systems in Node.js and TypeScript, make bold architectural calls, and build APIs that other engineers love to use. You'll dive deep into data flows, caching, and performance - always thinking about how backend decisions shape the user experience.
What you'll do
Architect and evolve backend systems that support millions of active users - from designing architecture to making sure everything runs smooth at scale.
Build APIs engineers love - clean, reliable, and intuitive, so the frontend team can move fast without friction.
Work with complex data flows, caching, and messaging.
Catch performance bottlenecks before users ever notice them.
Work closely with product, frontend, and data teams - ship fast, iterate faster.
Bring fresh ideas, constantly push limits, challenge assumptions, and raise the bar for backend engineering.
What you bring
5+ years building backend systems at real scale - you’ve seen what works and what breaks when millions of people use a product.
Strong Node.js + TypeScript on the backend. This is your primary stack, and it shows - async code, event loops, and backend architecture decisions are second nature to you.
Experience designing scalable architectures and REST APIs other engineers actually want to use.
Deep knowledge of PostgreSQL, ClickHouse, and Elasticsearch - comfortable with large datasets, unbothered by a bad query plan.
Hands-on with Redis and RabbitMQ - you know how to make systems both fast and resilient.
Confidence around infrastructure: Nginx, Kubernetes, deployment pipelines.
Go is a HUGE plus. If you've shipped services with it, great - tell us. If you haven't but you're curious to pick it up as part of the role, that works too.
You’ll fit right in if you
Prefer freedom over fixed schedules - remote, flexible, unlimited time off.
Are naturally curious and love driving real impact for users and the business.
Can wear multiple hats - we love experts, but we also value jacks of all trades.
Keep things cool, calm, and collected - save the drama for your llama.
Like challenges and aren’t afraid to roll up your sleeves to win.
Believe in working smarter, not harder - focus on productivity and results, not punching the clock.
Follow your passion and have fun while doing work that actually matters.
The interview process 🪜
Initial call with the People team (45 minutes)
Technical interview with our Tech Lead (90 minutes).
Chat with the CTO (60 minutes).
Equal opportunities for everyone 💖
We believe the best teams are diverse teams. We welcome applicants from all backgrounds and experiences. We consider all candidates regardless of age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, veteran status, neurodiversity, or disability. If you need reasonable adjustments at any point in the application or interview process, please let us know.
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