AbhishekMittal
Full-Stack Software Engineer
Python · React/Next.js · AWS
Full-stack engineer with 5+ years building and owning production web platforms as a long-term independent contractor. I take products from architecture through deployment to growth — most recently building a trading-analytics SaaS from zero to 10,000+ users. Deep in Python (Flask/Django), React/Next.js, real-time systems, and AWS.
- 0+
- Users on a platform built from scratch
- 0
- Paying subscribers
- ~0 yrs
- Longest single client engagement
Engineering products
end-to-end, independently.
Consistent client rating across long-term freelance engagements — noted for clear communication, reliability, and problem-solving.
Focus
I'm a long-term independent contractor who runs concurrent client engagements end-to-end — architecture, implementation, deployment, and the growth work that comes after launch. Each engagement is a dedicated, multi-year relationship rather than a one-off gig, which is how I've shipped and owned production platforms used by tens of thousands of people.
My range spans the whole stack: Python backends (Flask/Django), real-time systems with WebSockets, React/Next.js front-ends, and the AWS and Windows Server infrastructure underneath. I'm equally comfortable moving fast with modern AI-assisted tooling and getting hands-on with first-principles engineering when a problem demands it.
Most recently I built a trading-analytics SaaS from zero to 10,000+ users — architecting the platform, replacing costly third-party dependencies with in-house systems, and owning everything from billing to infrastructure cost.
Products I've built and owned.
From zero-to-scale SaaS platforms to real-time systems and data pipelines — each shipped end-to-end and run in production.
Supertrader
supertrader.meSenior Software Engineer
Trading-analytics SaaS that helps traders track trades, analyze performance, and draw insights.
- Architected and built the platform from scratch; grown to 10,226 registered, 4,048 active, and 1,944 paying subscribers (Jun 2026).
- Replaced costly third-party MT5 packages with an in-house trade-connection handler, removing the external dependency and its recurring cost.
- Integrated Stripe and RevenueCat with webhook-driven billing for the full subscription and payment lifecycle.
- Provisioned and manage Windows Server (IIS, NSSM) and AWS infrastructure, actively optimizing cloud cost.
- Mentor developers across a 10-person team; own resolution of infrastructure and customer-facing technical issues.
Nexgen Enterprises
Software Developer
Land-surveying company; built and maintained the Field-to-Finish (FTF) SaaS platform for survey operations.
- Retained as 1 of only 2 developers (from a team of 5) through a company restructuring — kept for performance and communication across nearly 4 years.
- Built and owned the platform's real-time chat infrastructure: a fully custom Socket.io server and event system that replaced an external provider — cutting chat response/setup time ~50% and removing 100% of third-party messaging cost.
- Processed survey-order data at scale — millions of rows across multiple Salesflow clients — powering operational and reporting workflows.
- Delivered a job-board module letting field crews bid on available jobs within the workforce-management suite.
- Developed an MCP server for the platform, enabling AI tools to interface directly with the system's data and operations.
Deben Media
Software Engineer (Part-time)
Flask web applications with Dockerized deployments, hands-on server management, and data-analysis workflows.
- Build and maintain Flask web applications with Dockerized deployments and hands-on server management.
- Run data-analysis workflows (Pandas, NumPy, Jupyter) that turn scattered raw data into meaningful insights.
Qwego
qwego.comFrontend Developer
Startup building a platform for freelancers.
- Sole frontend engineer on the product, building the application in AngularJS.
MigArch Pvt. Ltd.
Software Engineer
Maintained and extended two products (Migmayo, Sqft) across the full stack.
- Maintained and extended two products (Migmayo, Sqft) — features and bug fixes across Flask, Angular, and MySQL.
Octal Knot Pvt. Ltd.
Software Developer (Intern)
Australian accounting-outsourcing firm building internal products and client websites.
- Built features for the Wiseaudits website and an SMSF audit platform (Python, Django, JS, React) alongside B.Tech studies.
A track record of long-term ownership.
Independent Software Engineer
Freelance / Contract · 2022 – Present
Concurrent long-term contracts, each a dedicated independent engagement — owned end-to-end from architecture through deployment and growth.
01 SupertraderSenior Software Engineer
Jan 2025 – PresentArchitected a trading-analytics SaaS from scratch to 10,000+ users; own infrastructure, billing, and a 10-person team's technical escalations.
02 Nexgen EnterprisesSoftware Developer
Sep 2022 – Jun 2026Built and owned the Field-to-Finish survey platform — custom real-time chat, large-scale data processing, and an MCP server for AI tooling.
03 Deben MediaSoftware Engineer (Part-time)
Jan 2024 – PresentFlask apps with Dockerized deployments plus data-analysis workflows in Pandas, NumPy, and Jupyter.
04 QwegoFrontend Developer
Jun 2023 – Jan 2024Sole frontend engineer building the freelancer platform in AngularJS.
05 MigArch Pvt. Ltd.Software Engineer
Mar 2022 – May 2023Maintained and extended two products (Migmayo, Sqft) across Flask, Angular, and MySQL.
06 Octal Knot Pvt. Ltd.Software Developer (Intern)
Apr 2020 – May 2022Built features for the Wiseaudits website and an SMSF audit platform alongside B.Tech studies.
The stack I build with.
Full-stack by default — backend systems, modern front-ends, data at scale, and the cloud infrastructure underneath.
Backend
Frontend
Data
Cloud & DevOps
Integrations
Tooling & AI
Foundations & recognition.
B.Tech, Computer Science
IIIT Vadodara
Senior Secondary (12th), CBSE
90.4%
Secondary (10th), RBSE
92.83%
Consistent client rating across long-term freelance engagements — noted for clear communication, reliability, and problem-solving.
Let's build something
Have a product to ship or a platform to scale? I take on a small number of select engagements at a time — tell me what you're working on.