Staff Backend Engineer

Job

Staff Backend Engineer

Team

Application

Location

Remote (Europe)

Type

Full-time, Remote

Overview

Koyfin is a fast-growing fintech product companies, building a powerful, intuitive analytics platform used by hundreds of thousands of investors around the world - from individual traders to top-tier financial advisors.

We believe every investor deserves world-class tools without the complexity or price tag of legacy platforms. That’s why we’ve built a sleek, customizable experience with robust data coverage and stunning visualizations to help users make smarter investment decisions.

Our impact so far:

• One of the fastest-growing platforms for financial advisors, driven by product-led growth
• Recognized by G2 as a top-rated analytics solution
• Consistent record-breaking growth in usage and revenue
• Cash flow positive — and proud of it

About the Role

We’re looking for a Staff Backend Engineer to lead the technical evolution of our platform as we scale from hundreds of thousands to millions of users. This role goes beyond coding — it requires system-level thinking, mentorship, and architectural leadership.
As a Staff Engineer at Koyfin, you’ll partner closely with engineering leadership, product managers, and cross-functional teams to define and implement scalable systems that support the next stage of our growth. You’ll help shape the long-term technical vision while remaining hands-on with code and system design.
If you thrive on tackling complex problems, driving engineering excellence, and mentoring others while building systems that directly impact investors around the world — we want to hear from you.

What you’ll be doing?

• Drive the architecture and technical roadmap for core backend services

• Lead the design and implementation of scalable APIs and data processing pipelines

• Guide critical initiatives that impact multiple teams and business areas

• Collaborate with engineering leadership to raise the bar on system performance, reliability, and maintainability

• Mentor engineers across teams and foster a culture of technical ownership

• Debug and optimize distributed systems and large-scale data flows

• Act as a force multiplier — identifying gaps, proposing solutions, and enabling others to move faster

• Work with modern technologies including TypeScript, Node.js, NestJS, PostgreSQL, MongoDB, AWS, and Kubernetes

Who we’re looking for?

• 10+ years of experience in software engineering, with deep backend expertise

• Proven experience designing and evolving backend architecture at scale

• Knowledge of design patterns, algorithms, and system architecture

• Strong knowledge of Node.js, NestJS (or similar), SQL, NoSQL, distributed systems, and caching strategies

• Clear, concise communication skills — able to influence across functions and levels

• Strong leadership qualities — capable of setting technical direction and rallying teams around it

• Advanced English, both written and spoken

Bonus Points

• Prior experience in a fintech or data-heavy product company

• Hands-on experience with CI/CD pipelines, observability tools, and infrastructure as code

• Familiarity with frontend architectures and data visualizations
  Contributions to open-source or technical thought leadership (writing, talks, etc.)

What we offer

• Remote-first work culture with flexible hours

• Competitive compensation with performance-based bonuses

• High-performance gear and resources to support your productivity

• Real impact — your decisions will shape the product and the company’s direction

• Strong team of kind, talented engineers who care deeply about the product and users

• Fast feedback loops — we ship quickly and learn from real users

• Autonomy and influence — take ownership of complex systems and drive meaningful change

• A product-led company with minimal bureaucracy and high trust in our people

How to Apply

Click the button below to submit your application via Typeform. Applications submitted through Typeform will be reviewed as a priority.

Typeform

Koyfin is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.