Senior Software Engineer (JavaScript)

Koyfin is a rapidly growing, VC-backed fintech startup looking for a Senior Software Engineer (JavaScript) to join a small team to help scale our product from thousands of users to millions of users.

Our mission is to empower investors with easy-to-use analytics and beautiful charts to research stocks and understand market trends. Koyfin’s vast, real-time data coverage includes data on stocks, Exchange Traded Funds (ETFs), fixed income securities, Foreign Exchange (FX) currencies, commodities, economics, financial news, and Twitter.

Superior functionality combined with a delightful user experience explains why the number of users on Koyfin has tripled over the past year. Our daily users spend more than two hours per day on our browser-based platform. We’re not the only ones who think we’re on to something big.

Koyfin is backed by Social Leverage and Craft Ventures, two of the savviest, value-adding seed-stage VC firms.

See what users say about us on Twitter and check out our company overview.

Who we’re looking for?

• 5+ years experience in software engineering
• Experience with back-end technologies: Node.js, NestJS (or any other framework), SQL, and NoSQL databases.
• Experience with infrastructure: Cloud computing (AWS), CI/CD, Kubernetes
• Understanding design patterns, algorithms, and system design
• Great communication skills; curious, collaborative, humble, and an excellent problem solver
• Upper-Intermediate level of English

Will be a plus

• Previous experience in FinTech startup
• Experience with front-end technologies: React (or any other framework), HTML, CSS.

What you’ll be doing?

You will join the Application team and help our effort to deliver a comprehensive investment experience to our customers. Tech Stack: TypeScript, Node.js, NestJS, React, RxJS, AWS, Kubernetes, MongoDB, PostgreSQL. More specifically:

• You will be responsible for the end-to-end development and implementation of features
• Being a small team requires you to be responsible for features, from gathering requirements to realizing and maintaining, and offering improvements
• Designing and implementing scalable web services, applications, and APIs
• Transform large and complex datasets into beautiful visualizations
• Identifying bottlenecks and improving software efficiency
• Work closely with the product management and design team to define feature requirements and deliver the product that materially impacts the business and improves the customer experience

What we offer

• We strive to create an open environment where problems are solved by honest and rigorous discussion
• A small team at a fast-growing fintech startup where each person has a big impact and feedback from users
• Flexible work schedule
• Fully remote work or the possibility to attend the modern coworking space in the center of Kyiv
• Generous salary and bonus potential
• Health Insurance/Well-being payment
• Extra days of vacations.