Building scalable solutions that bridge outcomes.
Engineering real-world impact through clean architecture, high-performance web systems, and rapid 1–2 week MVP delivery.
Philosophy, speed to value, and production-ready systems.
Turborepo monorepo, Next.js apps, and ecommerce platforms.
Full stack stack: React, Next.js, NestJS, Docker & Cloud.
Open for freelance contracts & MVP sprints.
Bridge the gap between problems and outcomes.
I translate complex business requirements into reliable, maintainable interfaces and backend APIs. I focus on clarity, performance, accessibility, and speed to value — shipping MVPs rapidly and refining toward resilient production quality.
Experienced across the modern JavaScript ecosystem: TypeScript, Next.js, NestJS, Express, PostgreSQL, Prisma, Docker, and Cloud Deployment. Currently advancing full-stack initiatives at Sparktech Agency.
Explore GitHub Profile
Engineering Experience & Technical Arsenal.
Full-stack development across high-growth agencies and startups. From responsive, pixel-perfect user interfaces to high-uptime RESTful backend microservices.
Huipperবর্তমান
Full Stack Web Developer (Sep 2026 – Present) · Building responsive React/Next.js/TS apps, integrating RESTful APIs with Postman testing to maintain 99.9% uptime, optimizing Node.js/Express schemas & legacy refactoring.
huipper.com ↗Sparktech Agencyপূর্বপথ
Junior Executive, Full Stack (Jul 2026 – Sep 2026) & Jr Full Stack Developer (Feb 2026 – Jun 2026) · Leading international client onboarding & roadmaps, emerging tech R&D, architecting complex Next.js dashboards.
sparktech.agency ↗Defined Solutionভিত গড়া
Frontend Engineer & Intern (Jan 2025 – Dec 2025) · Delivered 360° virtual tour MVP in 1 week, boosted load speed by 40%, built standardized Tailwind design system cutting feature dev time by 25%.
definedsolution.com ↗Core Arsenalদক্ষতার ভাণ্ডার
Frontend & Mobile: React, Next.js, Astro, Tailwind CSS, TypeScript, React Native, ElectronJs.
Backend & DB: NestJS, Express.js, MongoDB, Prisma ORM, RESTful APIs, JWT Auth.
DevOps & Recognitionঅর্জন
DevOps: Docker, CI/CD Pipelines, Git/GitHub, VPS/AWS, Linux Basics.
Awards: CSE Fest 2024 Champion · ICPC Asia Regional Contestant · ProgHero Hackathon Top 10.
Let's Build.
From architectural MVP delivery to mission-critical, high-uptime web systems. Tell me about your challenge and let's engineer the solution.
- Primary Emailshariarsfahim@gmail.com ↗
- Direct Line / WA+880 1711-264984 ↗
- LinkedIn/in/shariarsultan ↗
- GitHub/shariarSultanFahim ↗
- Location / TimeDhaka (GMT+6) · US/EU Overlap
- Rapid MVP Engineering1–2 Week Delivery Sprints
- Full-Stack ArchitectureNext.js, TypeScript, Microservices
- API & Performance99.9% Uptime · 40% Speed Tuning
- Senior Web RolesFull-Time Remote / Advisory
- Consulting & Codebase AuditMERN/TypeScript Modernization
What freelance engineering services do you provide?
I specialize in rapid 1–2 week MVP engineering, full-stack application development (Next.js, TypeScript, React), backend microservices & REST APIs (NestJS, Node.js, PostgreSQL), and performance audits (up to 40% Core Web Vitals speed tuning).
How quickly can you ship a production-ready MVP?
Standard core web app MVPs are architected, developed, and deployed to production within 1 to 2 weeks (7–14 business days), complete with responsive UI, auth, database persistence, and payment integration.
What engagement models and time zones are supported?
I work on fixed-scope sprint deliverables, hourly advisory/retainers, and dedicated fractional contracts. Based in Dhaka (GMT+6), I provide guaranteed daily 4–6 hour communication overlap for clients across the US, UK, Europe, and Asia.
How do we kick off a new project?
Send an inquiry via email to shariarsfahim@gmail.com or WhatsApp at +880 1711-264984. We will schedule a 20-minute scope alignment, agree on milestones, and immediately begin execution.