FULL-STACK SOFTWARE AND PRODUCT ENGINEER
NafisHossain
I own codebases end to end, from scoping and architecture to delivery and production support. More than six years of production software for US-based companies, from a B2B SaaS marketplace with thousands of users to card payments on a point-of-sale platform.
STATUSOpen to full-time remote roles. Contract work is also considered.
KEY DIMENSIONS
Career, 2020 to 2026
- 2025 TO PRESENTBrevonic LLC
- 2022 TO 2025Wide Open Technologies
- 2020 TO 2022Independent Contractor
- 2020 TO 2022RoomDaddy
FIG. 2Career timeline, 2020 to 2026
Experience
Brevonic LLC
Founder and Lead Engineer, full-time, remote, United States
- Gave US-based companies one accountable engineering partner, from scoping and architecture to delivery and production support, by running a product engineering studio and managing a team of engineers and contractors; now open to moving from client work into a full-time role on a team.
B2B SaaS Marketplace
Lead Engineer
- Gave buyers and sellers a confidential place to list and negotiate deals, growing to thousands of users, by architecting and owning a multi-tenant B2B SaaS marketplace end-to-end.
- Kept sensitive deal information visible only to the right parties by designing role-based access control, confidential listings, secure document uploads and admin approval workflows.
- Let buyers and sellers find and negotiate deals in one place through dashboards, listing search and filters, buyer-seller messaging and public profiles.
- Kept SMS notifications compliant with US carrier rules and reliably delivered by integrating Twilio with proper A2P 10DLC carrier registration.
- Shipped the platform from first build to launch and supported it in production, partnering directly with the founder on what to build and in what order.
LaunchPOS
Full-Stack Engineer
- Let merchants accept card payments in person by engineering custom payment processing and card-terminal integration for a point-of-sale platform, alongside AI features and cloud deployment.
FreshQuote
Full-Stack Engineer
- Brought an unfinished B2B marketplace to feature-complete by ramping up on the inherited codebase and building the remaining features within its existing architecture.
Wide Open Technologies
Lead Software Engineer, full-time, remote, Wilmington, NC, United States
- Cut API response times by 38% for a B2B enterprise client by designing secure, scalable APIs.
- Streamlined a client’s core business processes by leading the development of a custom ERP system.
- Gave a client one platform for daily event operations and attendee interaction by building an event management system.
Independent Contractor
Full Stack Web Developer, freelance, remote, United States
- Got a startup’s B2B SaaS product to market ahead of its target timeline by building and launching it.
- Gave an enterprise client’s stakeholders real-time visibility into operations by building KPI dashboards.
RoomDaddy
Software Developer, contract, remote, Dubai, United Arab Emirates
- Made accommodation booking intuitive on mobile by rebuilding the booking platform as a mobile-first experience.
- Let partner hotels manage their own listings, bookings and tenants by building a property management system integrated with the booking platform.
SCHEDULE 1Experience, newest first
Featured project: B2B SaaS marketplace
Lead Engineer, through Brevonic. Architected and owned end to end. The feature map below shows how the pieces fit together.
PLATFORM, MULTI-TENANT SAAS
Access and trust
- Role-based access control
- Confidential listings
- Secure document uploads
- Admin approval workflows
Deal flow
- Dashboards
- Listing search and filters
- Buyer-seller messaging
- Public profiles
REFERENCE, LAUNCHPOS
“He understands both the ‘why’ and the ‘how.’”
Method
Scope
Set directly with the founder or client: what to build, and in what order.
Architecture
Multi-tenant structure, role-based access control, secure and scalable APIs.
Build
Features, payments, dashboards, an ERP system and an event platform.
Launch
From first build to production.
Support
Continued in production after launch.
FIG. 3Delivery method, scope to support
Infrastructure and integrations
Where the code is built and deployed, and the services it connects to.
CLOUD AND DEVOPS
- AWS
- Docker
- GitHub Actions
- CI/CD pipelines
- Cloud deployment
INTEGRATIONS
- PAYMENTSStripe, card terminals
- MESSAGINGTwilio (A2P 10DLC), email servers
- REAL-TIMEPusher
- AIOpenRouter, LLM integration
- BUSINESS SYSTEMSCRM, WordPress API
FIG. 4Infrastructure and integrations
Bill of materials, stack
TABLE 1Technologies by category
About and contact
I’m a full-stack software engineer in Rajshahi, Bangladesh. Since 2020 I’ve built production software: at RoomDaddy in Dubai, for Wide Open Technologies in North Carolina, and through my own studio, Brevonic, where I owned products end to end for founders, from architecture to production support, and led a small team.
Now I want to bring that ownership inside one company: full-time, remote, and for the long term.
Open to full-time remote roles. Contract work is also considered.