Md. Abbas Uddin

About me

I've shipped WordPress plugins from zero to scale: Bit Form (10,000+ users), Bit Integrations (20,000+ users) and Bit-Flows (2,000+ users). I also built PaymentForm, a SaaS platform with microfrontend architecture that supports Stripe, PayPal, Mollie, Razorpay, Midtrans, Square and Braintree.

I have a strong eye for UI/UX, with hands-on Figma experience and accessibility (a11y) work for visually impaired users. I take full ownership of features from design doc to production, write clean, well-tested code, lead code reviews, catch quality gaps early and mentor developers. I also contribute to open source on GitHub.

Technical skills

Experience

1. Jan 2021 – Present

   BitApps Software Engineer (Full Stack)

   Building and maintaining production SaaS platforms and web applications serving 50,000+ active users globally. I deliver moderate-to-high complexity features independently, from technical design through production, and lead code reviews, mentor developers and write technical design docs. I work in Agile/Scrum sprints and join incident retrospectives.

   PaymentForm.io Multi-tenant payment SaaS

   • Owned full feature epics: design docs, API and schema changes, backend, frontend, tests and production release on AWS.
   • Introduced microfrontend architecture so teams can deploy frontend modules independently.
   • Built Figma-accurate UI components with WCAG-compliant a11y, including screen reader support and keyboard navigation.
   • Designed a multi-tenant PostgreSQL schema with tenant isolation and concurrency-safe transactions across millions of records.
   • Built NestJS REST and GraphQL APIs, plus async processing with Redis and Laravel Queues and real-time updates over WebSockets (Laravel Reverb).
   • Set up OpenTelemetry APM dashboards with SLI/SLO tracking and alerting.
   • Integrated Stripe, PayPal, Razorpay, Mollie, Midtrans, Square, SumUp and Braintree. Deployed with Docker and GitHub Actions CI/CD, and covered on-call support.

   Bit Form WordPress form builder, 10,000+ users

   • Built the TypeScript, React 19 and Jotai frontend. Code splitting cut the bundle by 97% (350 KB to 10 KB), improving Core Web Vitals.
   • Added WCAG compliance and screen reader compatibility across all form components.
   • Led code reviews and TDD (Jest, PHPUnit, Cypress), pair programmed with juniors and onboarded new engineers.
   • Helped define quality metrics for bundle size, test coverage and load time.

   Bit Integrations WordPress automation, 20,000+ users

   • Designed the connector architecture for 150+ API integrations, including Mailchimp, Zoho CRM, Stripe, Shopify and WooCommerce.
   • Spotted quality gaps across the team and proposed improvements that were adopted across the whole plugin suite.

   Bit-Flows Automation plugin, 2,000+ users

   • Designed and delivered an automation engine with conditional logic, scheduled tasks and 150+ integrations, breaking epics into small delivery increments.
2. Jan 2020 – Dec 2020

   R-Creation Web Developer

   Built the RESTful APIs, MySQL schema and React frontend for a Bus Ticket Management System, which brought a 30% efficiency gain. Took part in Agile ceremonies and iterative releases.

Projects

Education & research

1. 2022 – 2025

   East Delta University B.Sc in Computer Science & Engineering, CGPA 3.53 / 4.00

2. 2016 – 2020

   Chittagong Science & Technology Institute Diploma in Computer Technology, CGPA 3.79 / 4.00

Research publications

• Deep Learning-Based Malware Detection (SOMLAP & UGRansom) with Explainable AI. CNN in PyTorch and Scikit-learn, evaluated with ROC-AUC and confusion matrices.
• Transformer-Based Bangla NLP: BRAC Dataset. Fine-tuned BERT with HuggingFace and PyTorch, benchmarked on precision, recall and F1.

Certifications

• Web Design & Development, BASIS Institute of Technology & Management (BITM), 2019
• Web Design & Development, Affable Technology, 2018
• Computer Hardware & Networking, Computer Village, 2014

Contact

Have a SaaS, plugin or full-stack project in mind? Send me a message.

gmabbas44@gmail.com Copy email

+880 1845 109 044 GitHub LinkedIn