Валерия

Valeriia Lysivnenko
telegram: @prickly_pear
Київ, Київ 01001
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I’m a frontend and mobile engineer with about four years of professional experience, mostly working
with React Native and React (TypeScript, Redux, Firebase). I’ve spent a lot of time in fast-moving
environments — early startups, MVPs, and large existing codebases — where documentation is often
missing and you have to figure things out as you go.

My main focus is mobile frontend development, especially performance-sensitive UI and complex user
flows (media feeds, lists, integrations), but I’m also familiar with the broader product delivery cycle,
including backend collaboration and API work (NestJS, PostgreSQL). I’m comfortable taking ownership of
features, debugging unfamiliar systems, and adapting to changing requirements. I use AI tools to work
faster and iterate better, but I don’t treat them as a substitute for understanding the system. I’m looking
to keep growing my architectural judgment while building products that actually ship.

Work Experience

Mobile & Frontend Engineer
React Native / React developer at Innovecs
November 2021 to Present

• Delivered React Native and React applications for multiple client projects, including early-stage startups
and MVPs
• Implemented performance-critical UI (media feeds, long lists) using preloading, caching, memoization,
and render optimization techniques.
• Delivered complex product flows including authentication, media uploads, interactive content, maps,
forms.
• Integrated Firebase services (Auth, Firestore, Cloud Functions, Storage, FCM) and multiple third-party
APIs (affiliate, search, Google Places etc).
• Integrated AI-based third-party services (e.g. product recognition, virtual try-on).
• Owned frontend integration with backend APIs, collaborating on API contracts, error handling, and data
consistency.
• Shipped cross-platform features using React Native Web and React.js, aligning mobile and web behavior
where appropriate.
• Worked on a short-term Next.js project, implementing features and navigating client/server component
boundaries and rendering trade-offs.
• Debugged and extended existing, poorly documented codebases, developing strong reverse-
engineering and problem-isolation skills.
• Participated in technical decision-making around libraries and architecture, balancing delivery speed
vs. maintainability.

Frontend Engineer — Angular → React Migration (Enterprise Project)
Miro (outsource) November 2021 to March 2023
• Contributed to a large-scale Angular to React migration within a complex, poorly documented enterprise
codebase.
• Reverse-engineered legacy Angular components to understand business logic and re-implement
functionality in React.
• Owned delivery of non-trivial features independently in a high-ambiguity environment, coordinating
with distributed teams.
• Developed strong debugging and code comprehension skills by working extensively with existing
production systems rather than greenfield code.

Additional Technical Experience
• Contributed to backend development in startup environments, working with NestJS and Firebase to
support mobile and web applications.
• Implemented and integrated CRUD APIs, authentication flows, and basic business logic in collaboration
with frontend features.
• Worked with PostgreSQL at the application level, reasoning about schemas, data flow, and API
integration.
• Participated in broader product delivery lifecycle, including feature scoping, API contract discussions,
integration testing, and iteration based on feedback.
• Gained exposure to Kotlin in limited contexts, becoming familiar with syntax and platform tooling.

Education

Software engineering (Bachelor's)
National Aviation University-Kyiv
September 2017 to June 2021

Skills
• Firebase
• Angular
• Redux/Zustand
• Mobile/frontend development
• Typescript
• React Native
• Postgres
• GraphQL
• React
• Next.js
• NestJs
• 3rd party API (Google, Affiliate systems)

Languages

• Ukrainian - Native
• English - Fluent