Full-stack engineer for SaaS platforms, storefronts and booking systems.
6+ years shipping production software with React, Next.js, Laravel and Node — from architecture and API design through deployment on real infrastructure.
Open to Werkstudent, full-time or part-time roles in software development — up to 40 hrs/week, remote friendly worldwide.
- 20
- Shipped products
- 6+
- Years in production
- DE
- Based in Ilmenau
Experience
Technext
Jun 2021 — Oct 2026 · 5 yrs 5 mosSoftware Engineer III
Jun 2026 — Oct 2026- Build and maintain scalable web applications using React.js, Next.js, TypeScript and modern frontend architecture.
- Lead technical implementation of complex features, working directly with designers, backend engineers and product teams.
- Develop reusable UI systems and integrate REST APIs with a strong focus on maintainability and performance.
- Mentor developers through code reviews, technical guidance and knowledge-sharing sessions.
Software Engineer II
Jan 2024 — Jul 2026- Delivered 15+ production web applications using React.js, Next.js, NextUI, Tailwind CSS and Bootstrap.
- Cut initial page-load time by ~30% through code splitting, lazy loading and bundle optimization.
- Reduced JavaScript and CSS bundle sizes by up to 30%.
- Applied SSR and CSR strategically in Next.js to improve rendering performance and scalability.
- Shipped SEO improvements — structured data, metadata, image optimization and server-side rendering.
Software Engineer & Associate Project Manager
Jan 2023 — Jan 2024- Split time between hands-on development and coordinating delivery across engineering, design and clients.
Software Engineer
Jun 2021 — Jan 2023- Built REST APIs and backend services, integrated payment systems and third-party APIs.
- Worked with Git/GitHub, MySQL, Linux, Nginx and PM2-based deployment workflows.
Bongo IoT
Feb 2020 — May 2021 · 1 yr 4 mosWeb Application Developer
Feb 2020 — May 2021- Developed and maintained web applications using PHP, Laravel and CodeIgniter.
- Collaborated with cross-functional teams to improve application performance and user experience.
- Debugged production applications and resolved technical issues under live traffic.
Education
Technische Universität Ilmenau
MSc, Computer & Systems Engineering
2026 — 2028
Metropolitan University Bangladesh
BSc, Computer Science
2017 — 2020
Certifications
- Software Architecture: From Developer to Architect
- Mastering React
Work
20 production builds across fintech, e-commerce, hospitality and media — from WordPress sites to full custom stacks.
CreatorVelox Capital — Hedge
A USDT-native hedge fund platform where qualified investors subscribe into funds and track live NAV and P&L.
CreatorVelox Capital — Portal
A member portal for a multi-level earnings program, tracking matrix bonuses, matching bonuses and leadership ranks across ten levels.
CreatorThe Attorney A-List
A searchable directory connecting people with vetted, top-rated attorneys by practice area and location.
CreatorTrade Market
A member dashboard for a trading referral program, handling sign-ups, referral commissions and multi-level payouts.
Team LeadFuelCellsWorks
A news and research portal for the hydrogen and fuel-cell industry, publishing daily articles with AI-assisted editorial workflows.
Team lead at Quintix.ai (Canada)
Team LeadGradNet
An alumni management platform for universities, covering member directories, fundraising campaigns and event management.
CreatorSmart Academy UK
An online learning platform offering self-paced courses in web development, data science and digital marketing.
CreatorTropicana Beach Resort
A booking and management system for a beachfront resort, covering room packages, amenities and reservations.
Team LeadDigieSIM
An eSIM purchasing platform for Middle East travel — plan browsing, checkout and instant activation.
CreatorCupcakes & Gifts
An e-commerce storefront for curated cupcakes and gifts, with corporate gifting and custom bundle builders.
CreatorMedusa Flowers
A flower and gifting e-commerce store serving same-day delivery across Dubai.
CreatorSave at Home
A multi-vendor marketplace for local building-material deals, with separate storefronts for merchants and shoppers.
CreatorTrade Confraternity
A marketing site for an AI-driven forex and crypto trading community, built to convert visitors into members.
CreatorPure Balance Studio
A booking and membership site for a UK yoga studio, covering class schedules, memberships and online bookings.
CreatorHIC Consult
A marketing site for a leadership performance consultancy, including an interactive performance-gap calculator.
CreatorFairway Control
A marketing and demo-booking site for cloud-based golf course management software used by clubs across the US.
CreatorBongo IoT
A product and solutions site for a smart-city IoT platform, covering device integrations and city-scale dashboards.
CreatorAI2030
A membership and events hub for a global responsible-AI movement, built on WordPress.
CreatorChicago AI Week
An event site for an AI summit, handling ticketing, speaker profiles, sponsors and the agenda.
CreatorFrogg Recruitment
A recruitment agency site on a custom WordPress theme, with job listings for employers and job seekers.
Free tools I built
Three AI-powered generators, live in production, each tuned for a different freelance marketplace.
Upwork Proposal Generator
Generates personalized, high-converting Upwork proposals from a job post in seconds.
Fiverr Proposal Generator
Writes professional Fiverr buyer-request responses and gig descriptions that stand out.
Freelance Proposal Generator
One tool for Upwork, Fiverr, Freelancer.com, Guru and Toptal — proposals tuned per platform.
Skills
Languages
Frameworks & libraries
Data & APIs
Cloud & deployment
Workflow & tooling
Practices
Get in touch
Based in Ilmenau, Thuringia, Germany. Open to Werkstudent, full-time or part-time roles in software development — up to 40 hrs/week, remote friendly worldwide.
souravkairy.se@gmail.com© 2026 Sourav Kairy
Built with Next.js, deployed on Vercel