Umber

About the Role 

We're looking for a Senior Backend Developer to take the lead on building a high-load copy trading platform for the LATAM market — a product set to compete with giants like Binance. You’ll be our go-to backend engineer on the project — designing scalable microservices, optimizing massive PostgreSQL datasets, integrating payment APIs, and fine-tuning AWS setup.
If you enjoy ownership, smart challenges, and building without bureaucracy slowing you down — we’d love to connect!

How You’ll Contribute 

• Develop and implement a scalable backend for our high-load Copy Trading platform
• Optimize PostgreSQL databases for massive data throughput
• Build and scale microservices to keep payment transactions smooth and reliable (Node.js, NestJS, Kafka/gRPC).
• Integrate payment APIs to make deposits and withdrawals seamless.
• Set up and optimize AWS infrastructure (S3, Lambda, RDS, EC2, CloudFormation, CloudWatch) for stability, scaling, and performance.

• Implement CI/CD pipelines, monitor system health, and ensure security of financial operations 

   

What Makes You a Perfect Fit

• 6+ years of hands-on experience building server-side solutions with Node.js and NestJS.
• Mastery of microservices and async processing (gRPC, Kafka).
• Deep experience designing and optimizing scalable, high-load systems (ideally in fintech or payment projects)
• Pro-level AWS knowledge (S3, Lambda, RDS, EC2, CloudFormation, CloudWatch).
• Deep expertise in PostgreSQL—designing and tuning databases for large-scale data.
• Strong TypeScript skills and a commitment to clean, reliable code.
• Familiarity with monitoring tools and load-balancing solutions.
• Comfortable taking ownership and driving things forward independently
   

Nice-to-haves

• Team lead experience or interest in mentoring others
• Background in payment systems or financial platforms.
• Knowledge of security and cryptography for protecting sensitive data.
• Experience with horizontal scaling and database distribution strategies like sharding or replication

Hiring Process

Just two steps: a 30–40 min intro call with our Talent Partner to get to know you and share project details, followed by one technical interview. We’ll cover your experience, project details, and the challenges we’re solving. We value your time and aim to move fast.

Your next challenge is waiting. Let’s connect, talk about the impact we can make, and see if we’re the right fit for each other!

Who We Are

Umber is a full-cycle product agency founded in 2018. We started as a design-driven company and now build complex finance systems from the ground up. Our current focus: payment solutions, trading platforms, and tools for professional investors and traders.

We’re a small, ambitious, senior-level team working with top-tier financial clients. We’re passionate about finance, trading, and creating systems that don’t just work — they scale and shine under pressure. Check us out at https://umber.tech.

Why Join Us

• Hardcore engineering challenges — real-time trading, high-load systems, financial-grade security
• Small team, no bureaucracy — you’ll work closely with the CTO and make architecture-level decisions
• Flexibility — fully remote, Eastern European time zone overlap
• Mentorship and space to grow — if you’re good, we’ll make you great
• Impact — your code goes live, fast. You’ll shape the core of the product