Full-stack Software Engineer · Product Builder
For 6+ years, I’ve turned complex operational problems into dependable software—leading and shipping 10+ SaaS, AI, and business-system builds across Bangladesh and international teams.
2025—2026
Star Elevator & Power Engineering
2022—2026
Levant IT Solution
2023—2025
Autoworx
2020—Present
Independent
I work across the complete delivery cycle—from understanding operational workflows and designing the system to building, deploying, and improving the product.
Translate business workflows into clear requirements, data models, permissions, APIs, and interface flows.
Build connected frontend, backend, database, authentication, integration, and reporting features.
Handle deployment, technical decisions, user feedback, maintenance, and continued iteration after launch.
Products shaped around real operations, real users, and real constraints—from internal business systems to public platforms and open-source tools.
Full-stack products built for businesses, organizations, and the people who keep them moving.
12 projects
A connected business operating system for elevator, MEP, and contracting teams—bringing CRM, projects, offers, inventory, purchasing, finance, documents, and communication into one workspace.
Replaced scattered spreadsheets, files, and follow-ups with one operational source of truth.
A full retail management platform for counter sales, barcode billing, inventory, customer dues, vendors, branch transfers, employee workflows, and business reporting.
Connected the sales counter, stockroom, customer accounts, and management reporting.
A bilingual blood-donation platform for Bangladesh with verified donor registration, location-based search down to upazila level, emergency requests, and an AI search assistant.
Made the path from an urgent blood need to a nearby willing donor faster and clearer.
A content-rich platform for a video production company, combining film portfolios, services, team profiles, articles, festival content, galleries, and project enquiries.
Turned a wide creative catalogue into a structured path from discovery to enquiry.
An editorial website for an event company, presenting weddings, corporate events, services, galleries, and the team’s journey through a polished consultation flow.
Gave a visual service business a high-trust home built around its work and enquiries.
An all-in-one service-management platform for automotive restyling shops, connecting leads, CRM, estimates, scheduling, payments, inventory, team workflows, and reporting.
Helped shops manage the full journey from client acquisition to completed job in one system.
The official digital platform for BWKD, bringing branches, trainers, black-belt profiles, achievements, notices, galleries, admissions, member accounts, and payments together.
Connected a national martial-arts organization with its members and public community.
A product, training, and consultancy platform for a fire-safety company, with nested catalogues, technical specifications, certifications, documentation, and a connected content dashboard.
Made a complex safety catalogue easier to explore, understand, and manage.
A Bangladesh-focused karate shop with category and price filtering, size-aware inventory, optional name embroidery, persistent carts, cash-on-delivery checkout, and an owner dashboard.
Connected a specialist product catalogue with the stock and order workflows behind it.
A brand and lead-generation website for an RMG manufacturing and sourcing company, presenting capabilities, product collections, sustainable production, and enquiry pathways.
Translated manufacturing capability into a credible, export-facing digital presence.
A public website and member system for a karate club, covering branches, trainers, achievements, notices, galleries, admissions, member profiles, notifications, and payment history.
Brought public storytelling and day-to-day member administration into one product.
A role-based school system for administrators, teachers, students, and parents, covering classes, lessons, attendance, exams, results, assignments, events, announcements, and schedules.
Organized the everyday academic workflows of a primary school in one place.
Full-stack products built for businesses, organizations, and the people who keep them moving.
12 projects
A connected business operating system for elevator, MEP, and contracting teams—bringing CRM, projects, offers, inventory, purchasing, finance, documents, and communication into one workspace.
Replaced scattered spreadsheets, files, and follow-ups with one operational source of truth.
A full retail management platform for counter sales, barcode billing, inventory, customer dues, vendors, branch transfers, employee workflows, and business reporting.
Connected the sales counter, stockroom, customer accounts, and management reporting.
A bilingual blood-donation platform for Bangladesh with verified donor registration, location-based search down to upazila level, emergency requests, and an AI search assistant.
Made the path from an urgent blood need to a nearby willing donor faster and clearer.
A content-rich platform for a video production company, combining film portfolios, services, team profiles, articles, festival content, galleries, and project enquiries.
Turned a wide creative catalogue into a structured path from discovery to enquiry.
An editorial website for an event company, presenting weddings, corporate events, services, galleries, and the team’s journey through a polished consultation flow.
Gave a visual service business a high-trust home built around its work and enquiries.
An all-in-one service-management platform for automotive restyling shops, connecting leads, CRM, estimates, scheduling, payments, inventory, team workflows, and reporting.
Helped shops manage the full journey from client acquisition to completed job in one system.
The official digital platform for BWKD, bringing branches, trainers, black-belt profiles, achievements, notices, galleries, admissions, member accounts, and payments together.
Connected a national martial-arts organization with its members and public community.
A product, training, and consultancy platform for a fire-safety company, with nested catalogues, technical specifications, certifications, documentation, and a connected content dashboard.
Made a complex safety catalogue easier to explore, understand, and manage.
A Bangladesh-focused karate shop with category and price filtering, size-aware inventory, optional name embroidery, persistent carts, cash-on-delivery checkout, and an owner dashboard.
Connected a specialist product catalogue with the stock and order workflows behind it.
A brand and lead-generation website for an RMG manufacturing and sourcing company, presenting capabilities, product collections, sustainable production, and enquiry pathways.
Translated manufacturing capability into a credible, export-facing digital presence.
A public website and member system for a karate club, covering branches, trainers, achievements, notices, galleries, admissions, member profiles, notifications, and payment history.
Brought public storytelling and day-to-day member administration into one product.
A role-based school system for administrators, teachers, students, and parents, covering classes, lessons, attendance, exams, results, assignments, events, announcements, and schedules.
Organized the everyday academic workflows of a primary school in one place.
Tools I built and contributions I made because useful software should move beyond a single client.
3 projects
A private, local-first desktop media player and downloader with incremental library indexing, native high-performance streaming, playlists, managed yt-dlp downloads, and an MCP interface for agent control.
A modern VLC-style experience backed by a security-conscious Rust desktop architecture.
A mobile-first Quran reader designed for focused reading and learning-order progression, with lazy-loaded scripture data, synchronized recitation, offline support, install prompts, themes, and adjustable typography.
Made a complete reading experience fast, installable, and dependable beyond a network connection.
Contributed an MCP server that exposes the component registry to AI tools, added installation workflows and tests, fixed a path-traversal vulnerability, and removed animation-frame and event-listener leaks across interactive components.
Improved both the developer experience and the security and runtime reliability of a growing UI library.
Tools I built and contributions I made because useful software should move beyond a single client.
3 projects
A private, local-first desktop media player and downloader with incremental library indexing, native high-performance streaming, playlists, managed yt-dlp downloads, and an MCP interface for agent control.
A modern VLC-style experience backed by a security-conscious Rust desktop architecture.
A mobile-first Quran reader designed for focused reading and learning-order progression, with lazy-loaded scripture data, synchronized recitation, offline support, install prompts, themes, and adjustable typography.
Made a complete reading experience fast, installable, and dependable beyond a network connection.
Contributed an MCP server that exposes the component registry to AI tools, added installation workflows and tests, fixed a path-traversal vulnerability, and removed animation-frame and event-listener leaks across interactive components.
Improved both the developer experience and the security and runtime reliability of a growing UI library.
I built my engineering foundation through independent study and hands-on product development. Since 2020, I’ve gained professional experience by delivering production SaaS, ERP, POS, and operational systems, working with clients and teams, and contributing to open-source software.
Hiring a product-minded full-stack engineer? I’m open to discussing engineering roles, product teams, and ambitious software problems.
krshanto2005@gmail.com