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Software Engineer Senior

Location:
Sofia, Sofia Capital, Bulgaria
Posted:
July 16, 2025

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Resume:

NEVY ANGELOV

Senior Software Engineer

359********* ****.********@*****.*** https://nevwandering.com https://github.com/nevyangelova Bulgaria, Remote

EXPERIENCE

Senior Frontend/Fullstack Developer (Web3)

Seedify.fund

12/2023 - Present Remote

Led the development of the Seedworld app, overseeing architecture and core features.

Worked closely with managers to adapt to fast-paced priority changes, make compromises, and drive innovations.

Designed NFT staking, Game NFT sales, inregrated 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.

Established and optimized monitoring and alerting strategies using Sentry and Highlight to ensure customer satisfaction. Used Figma for prototyping, requirements clarification, and documenting Lo-Fi decisions.

Mentored and assisted in career goals according to department competency matrix junior and intermediate team members. Senior Software Design Engineer (Open Source)

Mattermost

01/2020 - 12/2023 Remote

Promoted from Software Engineer II (intermediate) to Software Engineer III (Senior).

Developed and maintained 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 with GitHub Actions, reducing deployment time by 40%.

Maintained test coverage above 98% by creating unit and integration tests using Jest, Enzyme, and React Testing Library. Software Engineer - Front end

Friday Versicherung

01/2018 - 01/2020 Berlin

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. SUMMARY

Senior software engineer with 8+ years in

development, specializing in React, Next.js,

TypeScript, and Node.js. Skilled in building scalable, high-performance web applications with a strong

focus on pixel-perfect UI, UX, and accessibility.

Proficient in Context API, Custom Hooks, Redux, and Actions, with experience integrating MongoDB and

REST/GraphQL APIs for full-stack solutions. Hands- on with CI/CD pipelines, GitHub Actions, automated testing (Jest, Cypress, React Testing Library), and performance monitoring using tools like Lighthouse and Highlight. Passionate about Web3, AI, and

emerging technologies, with a proven track record of working in remote, distributed teams to build

cutting-edge digital products.

SKILLS

Hard Skills

Typescript Golang CI/CD React

Front-end JavaScript Next.js

Node.js Open Source React Hooks

Redux SCSS Styled Components

Ruby Context API Github Actions

Docker Web3.js Typescript

Full-stack Material UI PostgreSQL

MongoDB Figma Testing Library

Agile (Jira)

Soft Skills

Collaboration and Teamwork

Communication Self Management

Coaching Adaptability

Problem-solving Resilience

Attention to detail Time management

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EXPERIENCE

Junior Software Engineer

Babbel

01/2017 - 01/2018 Berlin

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.

Maintained top-tier code quality and long-term stability with over 97% test coverage; conducted unit and integration tests using Jasmine, Karma, Mocha, Jest, and Selenium.

EDUCATION

BA Hons in Digital Media

University of Worcester

09/2010 - 07/2014

LANGUAGES

English

Bilingual

PROJECTS

Founding Software Engineer (Part time

project)

07/2023 - 01/2024 Remote

Scomot LTD

Built the MVP from the group up, using Next.js,

AWS beanstock and Golang.

Authored 25000 lines of code.

Secured early-stage funding through impactful

MVP demos and pitches.

Recruited high-caliber backend talent to scale the team.

Served as a technical advisor in strategy

meetings, influencing important decisions related

to product development and company direction.

Ensured long-term viability by implementing

scalable code and best practices.

Prioritized and managed product backlog to align

with market needs.

Managed seamless deployments to minimize

downtime and issues.

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