Ajeer Mohammed
Senior Full-Stack EngineerFull-stack engineer building production web, mobile and AI systems, and running the infrastructure behind them. Currently the lead developer on a multi-tenant e-commerce platform and an AI shopping assistant, where the work covers architecture, planning, cost decisions and code review for a team of 4 to 6 developers. Past projects have shipped to a US state health department, international pharmaceutical brands, and retail businesses in India, the UAE and the United States. Based in India and open to relocation and remote roles.
Work Experience
SEA Media05/2025 - Present
Senior Full-Stack Engineer and Project Partner- Enrixa Store: built a multi-tenant e-commerce platform, now 56 data models and 259 REST endpoints across 48 controllers, where every merchant runs an isolated store on its own subdomain. NestJS, Prisma, PostgreSQL and Redis on the backend, with separate Next.js apps for the merchant admin and the customer storefront. Set the tenancy model, the payments layer covering Razorpay and cash on delivery, and the release plan.
- Closed the platform's biggest security risk by turning tenant isolation into a build requirement. Every pull request runs an automated isolation check and a migration compatibility diff against main across a schema that has taken 83 migrations, so a query that could leak one merchant's data into another store fails CI rather than reaching customers.
- Enrixa AI: shipped an AI shopping assistant for Shopify. A Fastify service streams tool-calling agent replies over SSE, BullMQ workers keep the product catalog and its embeddings in sync, and the storefront chat widget runs inside a shadow DOM so it never collides with theme CSS. Wrote the product and technical plan behind it, including the cost model and the scaling approach, and kept a decision log for choices that would be expensive to reverse.
- W.I.N.S, Alabama Department of Public Health: led a two-repository build for an infant safety program. A Next.js 16 and React 19 admin CMS on Supabase, plus a Flutter app for parents tracking their child's health, milestones and vaccinations, both sharing one PostgreSQL database of 15 tables across 11 edge functions. Wrote the schema contract and table ownership rules that let two teams work on the same database without breaking each other's features, backed by about 100 test files across the two repositories. Live on the App Store and Google Play since July 2026 as the agency's official app for the program.
- Built a Shopify Hydrogen storefront serving more than 10,000 daily users across India, 96 routes on React Router 7, Oxygen and Sanity CMS with four other engineers, and owned the architecture notes and the Oxygen deploy pipeline.
- Built a competitor price monitoring app for Shopify that matches external catalogs against a merchant's own products and adjusts prices by rule, with repricing held behind a dry run until the merchant approves it.
- Wrote the agent instructions and custom tooling that let AI coding agents work safely in 8 production repositories, including automated audit, tenant-check and review-watcher scripts. Agents pass through the same gates the team does, so their changes still get reviewed and verified before they land.
- Handled deployment and day-to-day operations across all of it: Docker images, GitHub Actions pipelines, Vercel and Shopify Oxygen releases, PM2 process management, and the managed PostgreSQL and Redis instances. Keep roughly 185 test files green across the portfolio.
NTAM Group (Delta Plus Event Management)06/2024 - 04/2025
Software Developer- Built a gamified training platform for Abbott's medical representatives, used by over 1,000 reps worldwide, with per-region admin panels, a CMS and reporting. Angular, PHP, Node.js, SQL and microservices.
- Delivered L'Oréal's event app for Android and iOS, covering agendas, badge scanning, surveys, live voting and push notifications. Used at more than 5 live events. Flutter, .NET and SQL.
- Built two interactive pieces for Novartis and Nestlé: a talking avatar chatbot that answered product questions for healthcare professionals, using Next.js, Python, Google TTS and a fine-tuned model, and a live camera segmentation app with full-body tracking for product demos, using React, Redux, Electron and MediaPipe.
Indus Real Estate LLC12/2022 - 06/2024
Full-Stack Developer- Built a lease management CRM as a progressive web app covering more than 200 units, tracking lease expiry, payments, cheques, maintenance and reporting. Angular, PHP, Node.js and SQL on Linux.
- Rebuilt the public property site with better filtering and agent contact flows, cutting page load time by 70 percent by fixing first contentful paint. Next.js, Node.js, PHP and SQL.
- Added a CMS with an image pipeline that resizes, crops and converts uploads to WebP through Sharp, along with reporting tools for the content team.
DOSII06/2022 - 12/2022
Flutter Developer- Helped build a university admissions platform with predictive analytics that served over 1,000 students in its first quarter, and set up the project's unit and integration tests. Flutter, Python, Firebase, GCP and GetX.
Brototype11/2021 - 04/2022
Flutter Developer Intern- Built playlist management, shuffle playback and favourites for a media application.
Education
Crossroads Software Engineering BootcampIndia, 08/2020 to 11/2021. Mobile and web development with backend services. Delivered more than 10 projects in agile teams.
Technical skills
Backend and dataNestJS, Fastify and Express on Node.js, with Prisma over PostgreSQL. Multi-tenant schema design, migration safety, Redis and BullMQ for queues and background work. Frontend and mobileReact 19 and Next.js App Router, React Router 7, Angular, and Flutter for mobile. Server components, streaming, and state with Redux, Riverpod and TanStack Query. AI and agentic engineeringLLM integration across Claude, Gemini and Groq, retrieval with vector search and embeddings, tool-calling agents, SSE streaming and provider fallback. Also the rarer half: writing agent instructions, safety gates and verification harnesses so coding agents can work inside a production repository without breaking it. E-commerceShopify Hydrogen and Oxygen, Shopify apps on Remix with Polaris and App Bridge, Sanity CMS and Razorpay. Infrastructure and deliveryDocker, GitHub Actions pipelines, Vercel, AWS, GCP and Firebase, Nginx and PM2. pnpm and Turborepo monorepos, with Jest, Cypress and Playwright for tests. Open sourceTwo small npm packages. web-element-scraper extracts text from page elements using Puppeteer and Cheerio, for single or multiple selectors. nodejs-performance-profiler reports memory use, CPU load and uptime for Node.js applications, to console or to file.