Languages
TypeScript, JavaScript, Python, Go, HTML, CSS
ENGINEER
Bishal Singh
Engineer who takes products from zero to a working platform — PERN,MERN, AWS, and AI pipelines, built with the people who have to ship them.
Stack
Technical skills
Frameworks & libraries
Next.js, React.js, Node.js, Express.js, Django, Zustand, Prisma
Databases
MySQL, PostgreSQL, MongoDB, Firebase, Redis
Tools & platforms
Git, GitHub, AWS, Linux, Postman
Experience
Where I shipped
Onetuza Mekhos AI Labs Pvt. Ltd. — Mekhos Technology
Bengaluru, KA · Onsite
- Founding engineer — built the product from zero to a working platform on the PERN stack, working directly with the founder to define features, flows, and system architecture.
- Scaled development alongside a growing engineering team and led AWS deployment, setting up infrastructure, environments, and CI workflows.
- Partnered with the AI team to architect data pipelines for AI-powered features, bridging the core platform and ML capabilities.
Datapaths
Bengaluru, KA · Hybrid
- Architected a full-stack HR platform (PERN) for 100–300 employees, unifying employee management, attendance, and performance evaluation.
- Built 15 REST API endpoints (Node.js/Express) on a normalized PostgreSQL schema; cut existing UI bugs by 60% and page load time by 30%.
- Collaborated in a 10-member team on an AWS-hosted environment, contributing to code review, debugging, and on-time delivery.
GeeksforGeeks
Bengaluru, KA · Hybrid
- Built a full-stack Food Delivery app (MERN) with user authentication, real-time order updates, and order management.
- Used React/Next.js with server-side rendering for performance, and a scalable Express/Node.js backend for data and business logic.
Open source
TypeScript, Next.js, Express, React Flow — 5 merged PRs. Interactive spatial knowledge graph for codebases.
#20
Diagnosed and fixed an unhandled promise rejection crashing the backend under concurrent load, and a git clone that hung indefinitely on private/invalid repos.
#21Built a search-and-jump feature for the app’s interactive dependency graph, redesigning the camera-centering logic after discovering it broke on large node clusters.
#23Fixed a multi-layered stale-cache bug spanning the browser, backend, and file-preview caches that prevented the app from reflecting new commits to an already-analyzed repo.
#32Built high-resolution PNG/PDF export for the dependency graph, redesigning the capture approach after diagnosing a browser-crashing bug at scale, plus an in-app warning for large exports.
#14Added toast notifications for repository analysis feedback, closing a good-first-issue and fixing a related error-handling bug found during testing.
Projects
Selected work
React · Node.js · Express · PostgreSQL · Gemini AI
Flonny-AI — AI Expense Tracker
Parses natural-language transaction entries (amount, category, merchant, date) via Google Gemini, with a local regex/keyword fallback so the app works without an API key. Includes an AI chat coach that reviews history and budget progress, plus live budget-health tracking with category-level limits.
React · Node.js · Express · MongoDB
WhatsWeb — Real-Time Chat App
Full-stack, real-time web chat with a React frontend and a Node.js/Express backend handling user sessions and live message delivery.
Go · React · DNS · CLI
ESS — Email Security Scanner
Scans a domain’s email-security DNS records (MX, SPF, DKIM, DMARC, BIMI) and returns a score, letter grade, and issue list. Same Go scanner powers a React dashboard and a CLI that prints CSV, with a public scan API for lookups.
TypeScript · Node.js · Groq AI · npm
devdoctor — Dev Environment CLI
Published npm CLI that scans JS/TS projects for hardcoded secrets, committed .env files, outdated dependencies, and missing test scripts, then uses Groq to explain and interactively fix them. Includes a read-only benchmark that tracks token cost and time to measure how AI-friendly a codebase stays as it evolves.
npx @bishalsingh/devdoctor scan
Education
School
Master of Computer Applications
Assam Don Bosco University — Guwahati, Assam
Oct 2021 – Sep 2023Bachelor of Computer Applications
K.C. Das Commerce College — Guwahati, Assam
Aug 2017 – Jul 2021How I Work
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Communication
I keep stakeholders aligned with clear updates — from founders and AI teammates to code review — so features, architecture, and trade-offs are understood before they ship.
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Collaboration
I work well in small founding teams and 10-person squads alike, pairing across product, backend, and ML to land one shared outcome instead of throwing work over the wall.
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Problem-solving
I debug at the root: hung git clones, stale caches, graph-export crashes, and production load issues — then ship a durable fix, not a patch that hides the symptom.
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Adaptability
I move across PERN, MERN, AWS, and AI pipelines without slowing the team down, and I pick up new stacks when the product needs it.
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Time management
I protect delivery dates: scoped APIs, CI, and reviews that cut UI bugs and load time while still shipping on schedule in internship and founding-engineer settings.
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Leadership
As a founding engineer I helped define the system from zero, led AWS deployment and environments, and raised the bar for the engineers who joined after.
Contact
Let’s build the next one.