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● Systems Architect & Full-Stack Leader

Building reliable software for global teams.

Principal Software Engineer with 8+ years architecting fault-tolerant backend infrastructure, event-driven services, and AI-accelerated SaaS products for US and UK enterprise clients.

Lahore, Pakistan (Open to remote US, UK & EU hours)

arch-daemon://husnain.systemACTIVE NODE

// System Philosophy Manifest

“Architecture is not about making things complex; it is about keeping systems deterministic under unpredictable distributed load.”

Experience

8+ Years

Enterprise Backend

Monthly Transactions

100,000+

Production SaaS Scale

// Specialized Runtime & Tooling

Node.js Ruby on Rails PostgreSQL Redis / BullMQ AWS / Docker LLM Pipelines

01 // Architectural Genesis

From algorithmic foundation to enterprise systems architecture.

My path as an engineer began with a relentless fascination for high-throughput computing and internal runtime semantics. Over the last eight years, that foundation evolved into guiding cross-functional engineering pods through mission-critical migrations, distributed state handling, and zero-downtime overhauls.

Executive Technical Leadership

Bridging the strategic gap between high-level business velocity and rigid architectural sanity—ensuring software is not just delivered rapidly, but remains maintainable over 5-to-10-year lifecycles.

Microservices & Events

High-Throughput Node.js

Architecting event-driven pipelines handling millions of records using BullMQ, Redis streams, and asynchronous worker orchestration with deterministic idempotency keys.

Resilience & Modernization

Ruby on Rails Modernization

Refactoring battle-tested monoliths into clean domain boundaries, implementing the Strangler Fig pattern for safe transitions with zero downtime for live enterprise tenants.

Data Persistence

Database Query Optimization

Advanced PostgreSQL and MySQL tuning: deep query analysis, index redesign, partitioned storage strategies, connection pooling (PgBouncer), and locking mitigation.

Modern AI Systems

Practical LLM Agent Integration

Harnessing OpenAI API, Claude Code, and Cursor workflows to build intelligent backend agents, autonomous code auditing routines, and semantic search vector pipelines.

02 // Career TrajectoryView Full Experience →

2021 – Present

Strategic Systems International (SSI) PRESENT

Principal Software Engineer

Lead backend and full-stack delivery for US and UK enterprise clients across fintech, crypto analytics, retail analytics, and real-time products. Work spans architecture, APIs, databases, authentication, testing, CI/CD, engineering standards, code review, and team coaching.

Backend Architecture APIs & Databases Authentication & SSO CI/CD Code Review & Coaching

2018 – 2021

Codility Solutions

Software Engineer

Architected and scaled Ruby on Rails applications, implemented role-based authentication and authorization, optimized database schemas, delivered real-time functionality with Action Cable, and supported reliable production deployments.

Ruby on Rails Role-Based Access Database Schemas Action Cable

03 // Credentials & Rigor

Degree Program

2014 – 2018

Bachelor of Science in Software Engineering

International Islamic University, Islamabad

Focus on Algorithms, OS Architecture, and Distributed Systems

Agile at Scale

VERIFIED

Certified SAFe® 5 Practitioner

Scaled Agile Framework Certification

Enterprise Cadence, Program Increment Execution & Lean Portfolio Alignment

04 // Core Architectural Tenets

// TENET 01

Architecture First

Model the domain, data, boundaries, and operational constraints before layering on unnecessary complexity.

// TENET 02

Built for Reliability

Use automated testing, observability, secure data flows, performance work, and deployment discipline to keep systems dependable.

// TENET 03

AI-Accelerated Development

Use AI tools for refactoring, testing, debugging, review, and repetitive engineering work while keeping human ownership of design decisions.

// TENET 04

Continuous Improvement

Iterate on architecture, delivery flow, developer experience, and product outcomes using evidence from real production behavior.

● Open to Consulting, Principal & Technical SEO Roles

Let’s build something reliable, scalable and easy to find.

Whether you are scaling high-throughput backends, shipping agentic AI workflows, or making a complex platform rank and get cited in search and AI answers, I’m ready to advise and engineer. I work with SaaS teams, agencies and founders as a hands-on principal: from architecture reviews and backend builds to technical SEO audits and search-led growth, embedded remotely and accountable for outcomes.

Architecture Reviews • Backend & SaaS Builds • Technical SEO Audits • Agentic AI Workflows • Remote