Nevyana Angelova

Senior RnD Engineer

MailerLite

Sep 2025 - Current (1 year 1 month)

• Architected and developed AI powered internal and client-facing
tooling and product systems using Node.js, Laravel, Vue.js, MCPs,
ChatGPT apps.
• Designed scalable backend systems and APIs in Node.js and
Laravel focusing on maintainability, modular architecture, and
long-term extensibility for millions of users.
• Integrated AI automation tooling into daily engineering
workflows and kept up-to-speed with latest development in
prompt engineering.
• Took ownership of technical design decisions, balancing speed of
execution with scalability and code quality.
• Established monitoring, alerting, and production health
workflows across distributed systems, proactively identifying
p

S

Senior/Lead Fullstack Developer (Web3)

Seedify Fund

Dec 2023 - Aug 2025 (1 year 9 months)

• Led the development of the Seedworld app, overseeing
architecture
• Designed NFT staking, Game NFT sales, integrated with
blockchain operations and backend APIs for seamless user
experiences.
• Developed token burn mechanism and managed Token
Generation Event (TGE) bringing in over 5M in on-chain profit.
• Ensured code quality using Next.js, TypeScript, React, Node.js,
MongoDB, Context API and React Query for performance
optimization.
• Optimized state management and implemented server-side
caching, reducing page load times from 9+ seconds to under 1
second.
• Maintained high test coverage with unit and integration tests for
improved reliability and security.
• Est

Senior Software Design Engineer (Open Source)

Mattermost

Jan 2020 - Dec 2023 (4 years)

• Promoted from Software Engineer II (intermediate) to Software
Engineer III (Senior).
• Developed and upheld a high-performance chat web app for
100K+ active users using React, Redux, TypeScript, and Golang.
• Ensured code quality and best practices using code-splitting,
reusable hooks, Redux Saga and more.
• Designed and implemented accessible, responsive UI
components (design system) with SCSS, HTML, Material-UI.
• Improved iOS and Android app performance through state
management optimization, API efficiency, and delivery of 10+
features.
• Led code reviews and mentored 20+ open-source contributors to
ensure adherence to best practices.
• Initiated CI/CD pipeline automation

F

Software Engineer - Front end

Friday Versicherung

Jan 2018 - Jan 2020 (2 years 1 month)

• Developed and maintained frontend systems with React, Redux,
TypeScript, and React Hooks for enhanced user experience.
• Integrated GraphQL APIs with Prismic CMS to enhance content
delivery and data-fetching efficiency.
• Led a design sprint with product and UX teams, facilitating a
successful product launch with over 300 clients onboarded in the
first week.
• Diagnosed and resolved production incidents by troubleshooting
infrastructure and application-level issues, ensuring platform
stability.
• Established thorough test coverage with Jest and React Testing
Library to boost application reliability and minimize regression
risks.

Junior Software Engineer

Babbel

Jan 2017 - Jan 2018 (1 year 1 month)

• Contributed significantly to customer acquisition and tooling
improvements, fueling growth in the language learning industry.
• Oversaw the migration from Jekyll CMS to a cloud-based
solution, cutting infrastructure costs and boosting scalability.
• Executed the transition from Handlebars/Flux to React/Redux,
elevating application performance, maintainability, and user
interaction.
• Created a language skill grading app with JavaScript, React, and
Redux, streamlining onboarding and enhancing user assessment
accuracy.
• Ensured top-tier code quality and long-term stability with over
97% test coverage; conducted unit and integration tests using
Jasmine, Karma, Mocha, Jest, and Sele

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Nevyana Angelova

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