Ivan Demchenko
Senior Software Engineer | Technical Lead
Experience
Technical Lead - IDE Platform
Postman
Postman provides an API lifecycle management and collaboration product.
Led an initiative to develop an IDE extension (VSCode). Created a vision and strategy, gathered and clarified requirements, coded a PoC and performed internal testing.
Responsible for the architectural decisions and tradeoffs.
Coached and organised knowledge sharing sessions with other engineers.
The tech stack: ReactJS, NodeJS, AWS, Docker, TypeScript, NodeJS, Jest, Vitest, VSCode API, git.
Senior Software Engineer - Frontend Platform
Personio
Personio is Europe's leading HR Software for SMEs.
Initiated, planned and led the re-architecture of the UI library, resulting in a 30-40% reduction in consumer bundle size and a 60% improvement in developer experience.
Supported multiple teams with front-end architecture decisions.
Facilitated the alignment between different functions (product, design, engineering) in the organisation.
Led, mentored and coached a SCRUM team of 4 engineers.
The tech stack: ReactJS, TypeScript, Storybook, AWS, Jest, git.
Lead Software Engineer
InstaMotion Retail GmbH
InstaMotion Retail's goal is to lift the car buying process online.
Supported business needs with architectural decisions that enabled verticals based on NextJS, NodeJS, GraphQL and AWS, helping to gradually phase out the monolithic application.
Led a team of 3-5 engineers, facilitating team bonding and a culture of ownership.
Introduced best practices (code reviews, pair programming, mentoring, knowledge sharing, RFCs).
Initiated, planned, and built a UI library (mono-repository, ReactJS, Styled Components).
The tech stack: ReactJS, TypeScript, NodeJS, Express, RAML, GraphQL, AWS, git.
Software Engineer
Atlassian
Atlassian's mission is to unleash the power of every team.
Built an MVP version of a developer console for extending Atlassian products.
Worked on a solution (architecture and full stack) that bring user content into Atlassian products and handle user authentication.
Performed knowledge sharing sessions (gave talks on RamdaJS, Elm, ReasonML, Lambda calculus and category theory) and pair programming.
Helped the team formation processes and facilitated team bonding.
The tech stack: ReactJS, TypeScript, NodeJS, Express, RAML, AWS, git.
Software Engineer
AutoScout24
With 10+ million monthly users, AutoScout24 is one of the largest car marketplaces in Europe. As part of the core front-end team,
I implemented some of the most complicated UI components.
Helped building the distribution system for the UI library to address the high-load of micro-frontends architecture, availability and consistency problems.
Helped other teams to become better at front-end by mentoring and doing pair-programming with them.
On top of that, I dove deeper into functional programming and category theory.
The tech stack: JavaScript, AWS, Scala, git.
Software Engineer
ysura GmbH
ysura's main product is a mobile-/offline-first, in-browser CRM for the pharmaceutical industry.
I was constantly involved in optimising the performance to meet tight performance budgets.
I built a CSS-framework for a very specific use-case in close collaboration with designers.
Mentored junior engineers and helped more senior engineers to acquire new skills through coaching and knowledge sharing.
The tech stack: JavaScript/TypeScript (AngularJS), git.
Software Engineer
Ciklum
Ciklum is one of the largest outsourcing/consulting companies in Europe.
The tech stack: PHP, JavaScript (KnockoutJS, AngularJS), git.
Co-founder/Software Engineer
SpektrInterGroup
Co-founded a rapid website development studio
The tech stack: PHP, JavaScript.
Freelancer (PHP, JS, HTML, CSS)
Summary
Technical Lead, Developer and Architect with more than 10 years of professional experience taking end-to-end ownership of products & solutions from architecture to team building to a launched product
Experienced in building and managing teams that use web and cloud technologies to create great products
Eager to learn and a self-education addict, keeping abreast of both cutting-edge and fundamental disciplines
Committed to remote and on-site teamwork and knowledge sharing
Believes that openness and transparency build trust, and trust improves performance
Languages
Education
State University of Telecommunications
MA · Security and Telecommunication · Kyiv, Ukraine
Odesa I. I. Mechnikov National University
BS · Computer Programming · Odesa, Ukraine
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