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I’m an AI and full-stack engineer with 3+ years shipping production systems end to end—building multi-tenant SaaS platforms, event-driven backends, and LLM/RAG assistants that ground answers in retrieved sources. I specialize in PostgreSQL (PL/pgSQL, RLS, pgvector), NestJS event-driven architectures, and LLM evaluation/guardrails (retrieve-then-rerank, grounding/decline behavior, CI-gated performance).…I’m an AI and full-stack engineer with 3+ years shipping production systems end to end—building multi-tenant SaaS platforms, event-driven backends, and LLM/RAG assistants that ground answers in retrieved sources. I specialize in PostgreSQL (PL/pgSQL, RLS, pgvector), NestJS event-driven architectures, and LLM evaluation/guardrails (retrieve-then-rerank, grounding/decline behavior, CI-gated performance).

Muhammad Qaim

AI Engineer, Full Stack Developer, Back-End Developer, +2

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I’m an AI and full-stack engineer with 3+ years shipping production systems end to end—building multi-tenant SaaS platforms, event-driven backends, and LLM/RAG assistants that ground answers in retrieved sources. I specialize in PostgreSQL (PL/pgSQL, RLS, pgvector), NestJS event-driven architectures, and LLM evaluation/guardrails (retrieve-then-rerank, grounding/decline behavior, CI-gated performance).…I’m an AI and full-stack engineer with 3+ years shipping production systems end to end—building multi-tenant SaaS platforms, event-driven backends, and LLM/RAG assistants that ground answers in retrieved sources. I specialize in PostgreSQL (PL/pgSQL, RLS, pgvector), NestJS event-driven architectures, and LLM evaluation/guardrails (retrieve-then-rerank, grounding/decline behavior, CI-gated performance).

Available to hire

I’m an AI and full-stack engineer with 3+ years shipping production systems end to end—building multi-tenant SaaS platforms, event-driven backends, and LLM/RAG assistants that ground answers in retrieved sources.

I specialize in PostgreSQL (PL/pgSQL, RLS, pgvector), NestJS event-driven architectures, and LLM evaluation/guardrails (retrieve-then-rerank, grounding/decline behavior, CI-gated performance).

Skills

Experience Level

Expert

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Language

English

Fluent

Urdu

Advanced

Work Experience

AI & Full-Stack Engineering Lead at Accotech UK Ltd

September 1, 2024 - June 1, 2026

Led AI and full-stack engineering for Remindoo, a multi-tenant accounting CRM serving 6 UK accounting firms. Owned greenfield stack selection, relational schema, tenant role/permission model, and service architecture across NestJS, Supabase, and serverless AWS, aligned directly with the CEO, marketing, and client firms. Shipped a production RAG assistant over client financial records using pgvector + Supabase, with grounding so the system declines rather than guesses; deployed for daily use across all client firms. Engineered an RPC→Edge Function→SQS→Lambda→SES fan-out pipeline delivering ~4,000 emails/day for event-driven notifications, marketing campaigns, and daily reminders. Reduced Lambda spend by profiling and right-sizing via Lambda Power Tuning, and cut dashboard latency from ~1500ms to ~300ms using precomputed daily rollups and Redis caching. Enforced tenant isolation via PostgreSQL RLS, Redis-backed sessions, JWT authorization, and SHA-256 magic-link document exchange

Freelance Full-Stack Engineer at Independent (UK & South Africa clients)

June 1, 2024 - July 31, 2024

Delivered full-stack development for client products. Motonex: built an auto-shop management platform for UK independent garages using React/Next.js/TypeScript. Connect-a-Link: built a job board matching radiographers with employers across South Africa.

Software Developer at Irteqa Biotech

January 1, 2021 - May 1, 2023

Built and maintained production software including: AutoPost Guru (Shopify app) for social-media automation that auto-publishes merchant content; adopted by 10+ merchants and still actively used. EasyAccounting: SMB platform for real-time inventory, invoicing, and ledger tracking, in continuous production use since launch.