Hi, my name is
Evgenii Kalkutin.
I build things for the web.
I'm a certified Node.js JSNAD & JSNSD Javascript engineer specializing in building exceptional digital experiences.
About Me
Hello! My name is Evgenii and I enjoy creating things that live on the internet. My interest in web development started back in 2013 when I decided to try making personal blog — turns out hacking together a custom reblog button taught me a lot about HTML & CSS!
Here are a few technologies I've been working with recently:
- Node.js
- JavaScript (ES6+)
- Typescript
- Nest.js
- MongoDB
- React
- Vue
- Angular
- RxJS
- Jest & Playwright
- Webpack
- Docker

Certifications
Achievements
Where I have worked
Team Lead @ Fabit
Jun 2020 - Jan 2021
Working on various government & social projects
- Led the development of key federal-level IT projects, ensuring the scalability of platforms used by over 5 million users
- Optimized system architecture, reducing request processing time by 40% and decreasing server load by 30%
- Managed a team of 12+ developers, implemented code review standards and CI/CD, increasing release speed by 50%
- Organized development and planning processes, enabling project completion 20% faster than initially scheduled
- Conducted interviews and onboarding for new developers, performed code reviews, designed architecture, and contributed to programming
Team Lead @ Grid Dynamics
Jun 2020 - Jan 2021
Building email sources & delivering optimization
- Led the development of an AI-powered email editor for Nike, optimizing content and increasing user engagement by 35%
- Implemented an automated email template testing system, reducing QA costs by over $200K per year
- Improved data processing in AWS SES, achieving a 99.9% email delivery success rate and reducing spam by 60%
- Introduced new development processes, boosting team productivity by 25% and decreasing the number of bugs by 40%
Engineer @ Qwil Messenger
Jun 2020 - Jan 2021
Developing complex invitation tool with onboarding process.
- Developed a complex referral invitation system, resulting in a 20% increase in the customer base
- Implemented an analytics and tracking system, enabling the marketing team to boost conversion rates by 15%
- Conducted technical interviews and code reviews, raising the overall competency level of the team
Fullstack @ Code Factory
Jun 2020 - Jan 2021
Developing a SportsBetting platform for the US market and back-office dashboard for internal use. Implemented RBAC/permissions features from scratch.
- Developed a scalable back-office platform that processed over 1M bets per day with minimal latency
- Implemented RBAC and ABAC systems, enhancing system security
- Optimized database query handling, reducing response time by 35% and ensuring 99.98% uptime
- Worked in a distributed team across multiple time zones, successfully coordinating processes across different regions
Team lead @ Endava
Jun 2020 - Jan 2021
Development of a rich money exchange platform (Travelex) combining complex UI & business logic. The application makes use of KYC, sending money abroad, withdrawal, internal back-office management.
- Contributed to the development of a banking platform processing over $1B in transactions per month
- Led the creation of a back-office system for the banking platform, increasing transaction processing speed by 50%
- Grew into a Team Lead role, coordinating a team of 8+ engineers and successfully implementing DevOps processes
- Participated in business trips, presenting the project's technical vision to C-level clients
Fullstack @ Global Upwork
Jun 2020 - Jan 2021
Working on various custom projects. Building an impressive reputation on Upwork. Proven history of success with multiple clients.
- Top rated
- Rising talent