12/23/2025 updated

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100 % available

Senior Javascript/Typescript Developer with 10+ years of experience

Badhoevedorp, Netherlands
Only remote
BSc(Hons) Web and Multimedia Development
Badhoevedorp, Netherlands
Only remote
BSc(Hons) Web and Multimedia Development

Profile attachments

Sagar Sawuck CV Oct 25.pdf

About me

Front-end specialist - I build digital products for people, crafting excellent user experiences. I'm a clean code advocate who believes great software comes from great teamwork — whether that's mentoring developers, collaborating with designers, or taking ownership. AI ready and ready to deploy!

Clean Code PrinciplesJavaScriptUser Experience (UX)Adobe InDesignAgile MethodologyAmazon Web ServicesArchitectureCloud ComputingDevOpsProgramming ToolsAmazon DynamoDBPostgreSQLMongoDBMySQLNode.jsPerformance TuningScrum MethodologyTypeScriptOpenapiTestingGoogle CloudApache YarnReact.jsExpress.jsCypress (Programming Language)BackendGitKanbanWebpackAngularJSGitlab-ciKubernetesNpm(Software)Front End Software DevelopmentApi DesignNestJSDatabase AdministrationDocker
Frontend Development
Frontend specialist with full-stack capabilities including React, Next JS, Angular, API development, Node JS, Express, Fastify, and Nest JS

User Experience Optimization
Focus on user experience, engagement, and performance optimization with expertise in design systems, component libraries, and scalable UI architecture

Full-Stack JavaScript Development
Comprehensive JavaScript and TypeScript development skills with experience in building complex, data-intensive projects and maintaining clean code standards

Backend Technologies
Node.js, ExpressJS, NestJs, Fastify, OpenAPI Specification (OAS)

Testing Frameworks
Jest, Vitest, Jasmine, Cypress, Testcafe

Database Management
MongoDB, DynamoDB, MySQL, PostgreSQL, Sequelize

Cloud and DevOps
AWS, GCP, Docker, Kubernetes, Helm, GHA, GitLab CI

Development Tools
Git, Webpack, Vite, NPM/Yarn/PNPM

Methodologies
Scrum, Kanban, Agile development practices

Experience

Professional experience10+ years
Freelancer since2020

Languages

EnglishNative speakerFrenchNative speakerHindiGoodDutchBasic knowledge

Project history

Software Specialist (Senior Front-end consultant)

IO
Building and innovating internal tools that empower non-technical teams at IO. Gathering requirements directly from stakeholders, designing and delivering solutions that solve real problems while pushing boundaries with AI-augmented interfaces.

Full-stack Developer

Corel Corporation
Mind mapping software development - supporting people, teams and organizations to manage, organize, and plan their ideas through sleek mind-mapping software, working with remote colleagues across multiple timezones.

Full-stack Javascript Developer

Talpa eCommerce
React/Next.js ninja for a high-traffic e-commerce platform serving millions of users. Focused on engagement, performance, and developer productivity.

Lead Front-end Developer

bol.com via IO (Contract)
Architected and built a React platform enabling social media creators to launch their bol affiliate storefronts, focusing on user & developer experiences, and guiding a backend-focused team through their first React production environment.

Senior React Developer

Providus Technologies Limited
Built a real-time virtual soccer betting platform serving 11 million Nigerian users with live updates and animated game simulations.

Senior Software Developer

Maureva
Modernized a revenue accounting platform for airline providers by migrating legacy UIs to Angular, developing a reusable component library, and managing complex, data-heavy integrations.

Senior Front-end Developer

IPEDIS
Led frontend development for a document virtualization platform with a strong focus on accessibility, enabling organizations to customize and publish interactive annual reports online, pioneering custom in-house solutions & libraries as the front-end team lead.

Full-stack Developer

BFast Systems
Interactive kiosk application development - driving marketing campaigns in a fun and interactive way, offering users a chance to win prizes interactively, and engineering templates & libraries for faster development of new campaigns.

Frontend Developer

Proximity BBDO Indian Ocean
Developed and maintained websites for P&G consumer brands and real estate clients, automating workflows for developer efficiency.

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