SaaS and Product Delivery
Comfortable owning scoped features from product direction through production release.
Open to SaaS, agency, and client product work
ShuvoAnirbanRoy
Senior Full-Stack Developer for SaaS, AI, CMS, and Remotion products
Senior Full-Stack JavaScript Developer
I help founders, agencies, and client teams build production web applications, recover stalled AI-assisted work, and turn complex requirements into maintainable shipped systems.
SaaS & full-stackAI workflow recoveryCMS & Remotion
10+ Years Experience
300% Conversion Lift
100+ Reusable UI Components
5 Countries Worked With
AI Workflow Recovery
Strong at debugging prompt, API, state, and UI issues when AI-assisted work stalls or loops.
CMS and Remotion Systems
Experienced with Sanity, Payload, structured content, and programmatic video workflows.
Video
About My Work
Watch a quick overview of my senior full-stack, AI, SaaS, CMS, and Remotion product work
About
Professional background
Clear product thinking, reliable delivery, and modern web engineering for real client work.
Senior full-stack developer with 10+ years of experience building React, Next.js, Node.js, and Sanity products for SaaS founders, agencies, and client teams.
Best fit for SaaS builds, CMS-driven applications, AI product workflows, Remotion video systems, and complex production issues that need senior ownership.
I help teams ship new features, recover stalled AI-assisted work, clean up fragile implementations, and keep performance, SEO, and maintainability in view.
SaaS and Product Delivery
Comfortable owning scoped features from product direction through production release.
AI Workflow Recovery
Strong at debugging prompt, API, state, and UI issues when AI-assisted work stalls or loops.
CMS and Remotion Systems
Experienced with Sanity, Payload, structured content, and programmatic video workflows.
available Remote ready
Open to opportunities
FreelanceContractFull-Time
10+
Years Experience
300%
Conversion Lift
100+
Reusable UI Components
5
Countries Worked With
Ready to Collaborate?
Need senior full-stack help to build, rescue, or scale a product?
Skills
What I bring to the table
The technologies I use most often to ship production work.
Languages
Tools I rely on regularly across client and product work
JavaScript
Proficiency Level
96%
ES6+ expertise across frontend and backend with async patterns and performance tuning
TypeScript
Proficiency Level
92%
Type-safe React and Node.js services with generics, interfaces, and strict mode
Python
Proficiency Level
82%
APIs and scripting for data workflows and backend services
PHP
Proficiency Level
80%
Server-side development for legacy systems and ecommerce builds
SQL
Proficiency Level
88%
Query design, optimisation, and relational modelling
HTML5
Proficiency Level
96%
Semantic markup, accessibility, and responsive foundations
CSS3
Proficiency Level
94%
Modern layouts, animations, and design systems
Additional Technologies
And many more tools in my arsenalTypeScriptReact QueryZustandTanStack QueryTailwind CSSPanda CSSStyled ComponentsMaterial-UIPayload CMSSanity CMSSupabaseFirebasePrisma ORMGraphQLRESTful APIsWebSocketJWTOAuth2DockerGitHub ActionsJenkinsCI/CDPostgreSQLMongoDBMySQLRedisLiveKitMakerKitSentryJIRAFigma
Work
Featured projects
Production work across SaaS, AI, CMS, and video systems.
Want to see more? Check out my GitHub for additional projects and contributions! Explore More on GitHub
Experience
Professional experience
Recent roles, measurable wins, and the kind of product work I can help ship next.
Senior Full Stack Developer
BuiltForYou Digital
Feb 2025 - Oct 2025
Remote
full-time
Delivered marketing and streaming products with strong performance targets, secure authentication, and production-ready data infrastructure.
Key Achievements
- Improved page load speed by 40% and achieved 95+ Lighthouse scores across 15+ device categories.
- Architected JWT and OAuth-based authentication with MakerKit and Supabase for 1,000+ users while reducing delivery time.
- Built real-time streaming experiences with LiveKit and Supabase for 500+ concurrent users and sub-100ms latency.
- Optimized PostgreSQL queries to reduce average response times from 200ms to 50ms under high-throughput workloads.
Technologies Used
Next.jsTailwind CSSPayload CMSSupabaseMakerKitLiveKitPostgreSQL
Current Position
Lead AI Engineer
Presentia AI
Dec 2024 - Present
London, UK
contract
Built AI-assisted product workflows and editor experiences for a presentation platform focused on speed, usability, and production output.
Key Achievements
- Engineered multi-agent AI workflows using OpenAI, Azure, and Gemini for content generation and backend automation.
- Designed and shipped a Canva-inspired AI presentation editor that turned complex prompts into production-ready slide decks.
- Reduced token spend and API latency through prompt and request optimization while improving response quality.
- Built reusable UI systems and server-rendered workflows that supported SEO, scale, and faster product iteration.
Technologies Used
AI IntegrationsReact.jsTypeScriptSanity CMSTailwind CSSSupabaseStripeNext.js
Current Position
Full Stack Developer
Operation Nation
Sep 2022 - Present
Phoenix, AZ
full-time
Delivered product and marketing builds across AI presentation tooling, reusable UI systems, and CMS-driven websites.
Key Achievements
- Drove a 300% conversion lift by redesigning the AI presentation upgrade flow and making the offer easier to understand and adopt.
- Built a customizable AI presentation product with multiple agents, image optimization, and prompt tuning across 12 visual styles.
- Released a Sanity SEO plugin and no-code website builder that supported dynamic client sites and automated schema markup.
- Shipped 100+ reusable UI components and performance improvements that reduced bundle size by 40% and improved Time to Interactive by 35%.
- Collaborated closely with a distributed engineering team to ship quickly while maintaining strong Lighthouse scores.
Technologies Used
React.jsTypeScriptSanity CMSPanda CSSReact QueryNode.js
Full Stack Developer
Matthew Luke Studio
Jan 2021 - Aug 2022
Hackleton, UK
full-time
Built bespoke client websites, ecommerce storefronts, and CMS-driven web applications with modern JavaScript stacks.
Key Achievements
- Delivered 12 custom web applications using React, Node.js, Express.js, and MongoDB.
- Built 5 Shopify ecommerce websites with custom React components, Storefront API integration, and inventory workflows.
- Integrated Sanity CMS across projects and reduced content update turnaround time by 75%.
Technologies Used
React.jsNode.jsExpress.jsMongoDBShopifySanity.io
Frontend Web Developer
123workforce
Dec 2019 - Dec 2020
Dublin, Ireland
full-time
Built responsive workforce management interfaces and component systems with a strong focus on reuse and frontend quality.
Key Achievements
- Developed 45+ responsive web pages using HTML5, CSS3, SASS, JavaScript, and jQuery with a mobile-first approach.
- Created a reusable UI library with 60+ React and Styled Components that reduced development time by 35%.
- Improved performance through image optimization, lazy loading, and bundle cleanup for 25% faster load times.
Technologies Used
React.jsHTML5CSS3SASSJavaScriptStyled Components
Full Stack Developer
Boi Kotha
Jun 2018 - Oct 2019
Dhaka, Bangladesh
full-time
Engineered a book publishing platform with secure authentication, payments, and user-facing product improvements.
Key Achievements
- Built a full-stack publishing platform using React, Node.js, Express.js, and MongoDB with role-based access control.
- Developed REST APIs for inventory, orders, and payments serving 3,500+ registered users.
- Designed a responsive Material UI interface that reduced bounce rate by 28%.
Technologies Used
React.jsNode.jsExpress.jsMongoDBJWTMaterial-UI
Full Stack Developer
Code Builder IT
Sep 2016 - May 2018
Dhaka, Bangladesh
full-time
Delivered custom websites, ecommerce builds, and admin systems for local clients using PHP and JavaScript stacks.
Key Achievements
- Developed 10+ custom web applications using PHP, MySQL, JavaScript, and jQuery.
- Built an ecommerce platform with shopping cart, bKash and SSLCommerz integrations, and an admin dashboard.
- Created a custom CMS that reduced support requests by 65%.
Technologies Used
PHPMySQLJavaScriptjQuerySSLCommerzbKash
Let's Work Together
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.
Contact
Let's start a conversation
Hiring, contract work, or a freelance build. Send the brief and I will reply with next steps.
Why Work With Me?
- Fast reply and straightforward communication
- Comfortable with SaaS founders, agencies, and client-facing delivery
- Strong fit for CMS-backed applications, AI workflows, Remotion video, and performance cleanup
- Useful when AI-assisted work is stuck, looping, or producing fragile code
- Open to contract work, freelance builds, and senior remote product roles
Book a video call
Pick a time that works for you and let's discuss your project over a quick video call.
Send Me a Message
Share a role, project brief, or quick overview of what you need built.