Backend & AI Engineer · Islamabad, Pakistan

Systems built to outlast the team that built them.

Seven years architecting cloud-native, multi-tenant SaaS platforms — from serverless AWS backends to an AI-powered applicant tracking system with an embedded Google Gemini suite. Every decision weighs the database, the API consumer, the ops team, and the end user simultaneously.

Jawad Ul Hadi

Available for new work

7+ Years experience
4 Flagship SaaS platforms
150+ REST endpoints shipped
12+ Certifications

01 · Career

Experience

Jan 2024 — Present

Current

Backend Lead · Senior Backend and AI Engineer

MicroAgility Services (Pvt) Ltd. — Islamabad, Pakistan

  • Platform Leadership: Sole backend owner of Selectmox, a multi-tenant recruitment SaaS serving 100+ organizations — 20+ NestJS modules, 150+ REST endpoints, granular RBAC.
  • System Optimisation: Restructured query patterns, indexing, and caching across MySQL/PostgreSQL — cut per-request queries by 92.5% and dashboard load times from 8–12s to 1–2s.
  • AI Service Consolidation: Architected a unified AI service (TypeScript/Python/FastAPI) abstracting OpenAI, Google Gemini, and Anthropic — cut AI codebase surface by 60% across five production workflows.
  • Resilient Infrastructure: Asynchronous ETL pipelines (BullMQ/Redis) decouple heavy AI processing (OCR/PDF parsing) from the request path, with deterministic rule-based fallbacks for graceful degradation.
  • Security & Isolation: Server-level tenant isolation via JWT-based scope enforcement, eliminating cross-tenant data leaks.
  • Mentorship: Led internal AI enablement sessions on RAG and guardrails; mentored junior engineers on distributed systems and secure coding.

Mar 2022 — Jan 2024

Back-end Software Engineer

MicroAgility Services (Pvt) Ltd. — Islamabad, Pakistan

  • Scalable SaaS Development: Backend services for APAC HRMS, iAgility, and AgileiBrains — HR/payroll, agile project management, and EdTech certification platforms.
  • Performance Engineering: Optimised RESTful and GraphQL APIs — 40% faster data retrieval in production.
  • Migration Excellence: Zero-downtime database and server migrations across PostgreSQL, MySQL, and MongoDB.
  • Cloud Operations: Containerized services with Docker, deployed to GCP and AWS.

Jan 2018 — Mar 2022

Software Developer

Market Icon — Rawalpindi, Pakistan

  • Serverless Architecture: AWS Lambda and API Gateway integrations connecting SaaS applications to CRMs and payment gateways — eliminating fixed infrastructure costs.
  • API Development: Secure, documented APIs (Express.js/FastAPI) with JWT and OAuth 2.0 authentication across multiple client projects.
  • Lifecycle Management: Full-stack delivery from requirements analysis to automated GitHub Actions deployment pipelines.

02 · Capabilities

Technical Expertise

System Architecture & Design

Distributed Systems · Multi-tenant SaaS · Event-Driven Architecture · Domain-Driven Design (DDD) · Modular Monoliths · API Design (REST, GraphQL, WebSocket)

AI & LLM Engineering

OpenAI API · Google Gemini · Anthropic Claude · Provider Abstraction · RAG Pipelines · Multi-Agent Systems · LLM Observability · Structured Output · Vector Databases

Backend & Data Performance

PostgreSQL · MongoDB · MySQL · Redis · SQL/NoSQL Query Optimisation · Indexing Strategies · Caching · Full-Text & Semantic Search

Cloud, DevOps & Infrastructure

GCP · AWS (Lambda, API Gateway) · Docker Containerization · CI/CD (GitHub Actions) · Infrastructure as Code · Serverless Architecture · Zero-Downtime Migrations

Security & Governance

RBAC · JWT · OAuth 2.0 · Tenant Isolation · HMAC Request Signing · Secrets Management · Audit Logging

Languages & Frameworks

TypeScript · Node.js · Python · FastAPI · NestJS · JavaScript

03 · Selected Work

Featured Projects

Selectmox ATS

Backend Lead · Sole Architect selectmox.com ↗

AI-powered applicant tracking system · Multi-tenant SaaS · APAC

Enterprise ATS backend powering a multi-tenant recruitment platform for the Asia-Pacific region: a three-tier organization hierarchy with row-level isolation, granular RBAC across six roles, asynchronous AI resume-parsing on BullMQ/Redis, full-text and semantic search via MeiliSearch, and integrations with Stripe, Twilio, MS Teams, and n8n. The embedded Google Gemini suite spans four features — resume parsing, a tool-calling recruitment copilot, explainable AI candidate scoring, and automated interview-question generation.

20+ modules 150+ endpoints 25+ collections 100+ tenant orgs 300+ recruiters
NestJSMongoDBTypeScriptGoogle GeminiMeiliSearchBullMQRedisGCSStripeMulti-tenant

APAC HRMS

Enterprise HR management · Backend Lead

Full employee lifecycle for APAC enterprises — onboarding, attendance, multi-country payroll with region-specific compliance, and performance reviews — tightly integrated with Selectmox for candidate-to-employee conversion.

NestJSMongoDBRedisGCPRBAC

iAgility

Agile work management SaaS · Core Engineer

Sprint boards, backlog management, velocity and burndown analytics, and real-time collaboration over WebSockets for distributed APAC teams — with a multi-project cross-team reporting engine.

NestJSGraphQLSocket.IOAWSDocker

AgileiBrains

Training & certification EdTech · Backend Developer

Structured learning paths, auto-scored assessments, and certification workflows with badge issuance — cohort enrollment and org-level reporting for teams upskilling in agile practice.

NestJSMongoDBBullMQGCSJWT

Unified AI Integration Service

LLM abstraction layer · Architect

One consistent interface over OpenAI, Google Gemini, and Anthropic with graceful rule-based fallbacks and structured output — cut AI codebase surface by 60% across five production workflows.

TypeScriptPythonFastAPIGCP

Earlier & Supporting Work

Serverless Backend Architecture

AWS Lambda + API Gateway + MongoDB — high availability with zero fixed infrastructure cost. Market Icon.

Zero-Downtime Migrations

Server and database migrations across PostgreSQL, MySQL, and MongoDB production systems with no data loss. MicroAgility.

Performance & ETL Tuning

Reporting pipelines refactored — dashboard loads up to 10x faster, per-request queries cut by 92.5%. MicroAgility.

04 · Credentials

Certifications

Verified digital credentials from Google Cloud and IBM SkillsBuild — spanning generative AI, cloud, cybersecurity, and software engineering fundamentals.

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Also holding Google Cloud · Introduction to Generative AI ISC2 Certified in Cybersecurity (Candidate) Certified Django Developer

05 · Correspondence

Let's build something durable.

"The best code never has to be rewritten — not because it's perfect, but because it's flexible enough to evolve with the business."

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