About
Sifat Rabbi
Staff Software Engineer · Remote, Full-Time
I led a migration of a legacy ASP.NET/MSSQL system with 50M+ records to NestJS, PostgreSQL, and AWS, cutting a core query from 60 seconds to 500ms. That is the kind of ownership I bring as a Staff Software Engineer with 7+ years of production work across healthcare and fintech.
I work remotely and full-time as a Toptal-vetted engineer (top 3%), owning architecture, development, and deployment end to end for US-based clients. Core stack: Next.js, NestJS, TypeScript, PostgreSQL, AWS, and Prisma, plus FastAPI services for LLM-powered and retrieval-augmented generation features. I hold a Computer Engineering degree from AUST, where I now teach as an adjunct lecturer.
- Current role
- Staff Software Engineer at Toptal (remote)
- Open to
- Full-time remote roles · Part-time remote roles · Select freelance and contract projects
- Education
- BSc in Computer Engineering, Ahsanullah University of Science and Technology. Adjunct Lecturer.
- Focus
- Healthcare, Fintech, AI-driven products
- Availability
- Open to full-time and part-time remote roles
FAQ
Common questions
The same answers are published as FAQPage structured data.
What does Sifat Rabbi work on?
I take full technical ownership of production platforms across healthcare and fintech: architecture, migrations, Next.js and NestJS applications, PostgreSQL data models, and FastAPI services for LLM-powered and retrieval-augmented generation features. I work end to end with US-based teams.
What kind of role is he looking for?
Open to full-time and part-time remote roles. Priority order is Full-time remote roles, then Part-time remote roles, then Select freelance and contract projects. Staff and Principal-level remote roles come first. If you're hiring for a remote Staff or Principal role, or building something in healthcare, fintech, or AI, email me and we can talk it through.
What is his current role?
Staff Software Engineer · Remote, Full-Time. Staff Software Engineer at Toptal (remote). I hold a real full-time remote role, owning architecture, development, and deployment for US-based clients.
What stack does he use?
Next.js, NestJS, TypeScript, PostgreSQL, AWS, and Prisma for product work, plus FastAPI when the problem calls for LLM-powered or retrieval-augmented generation features.
How does he work with Toptal?
Staff Software Engineer at Toptal (remote). Toptal is where I hold that full-time remote role — I work directly with US-based client teams, not on short-term freelance gigs. Toptal-vetted, top 3% of engineering talent.
How can I hire him?
Email showmic96@gmail.com if you are hiring for a remote Staff or Principal role. You can also review my Toptal profile at https://www.toptal.com/resume/sifat-rabbi. If you're hiring for a remote Staff or Principal role, or building something in healthcare, fintech, or AI, email me and we can talk it through.
What domains does he work in?
Healthcare, Fintech, AI-driven products. I have shipped HIPAA/SOC2 healthcare platforms, fintech billing and payments, and AI-driven product features.
Where can I see his work and writing?
Selected projects are on the Projects page. Engineering notes and interview write-ups live on Contents. Both are linked from the home page.
What is his education background?
BSc in Computer Engineering from Ahsanullah University of Science and Technology (AUST), where I now teach as an adjunct lecturer, alongside a background in competitive programming.
Contact
Let's work together
If you're hiring for a remote Staff or Principal role, or building something in healthcare, fintech, or AI, email me and we can talk it through.
Open to full-time and part-time remote roles