Backend Engineer / Systems Architect PK / REMOTE / 31.5204° N

I engineer the systems products depend on.

Secure APIs, resilient SaaS infrastructure, and production backends built with Node.js and Python—designed to stay fast as the product grows.

Portrait of Arham Rumi
const status = "Open to Collaborations";
Node.js Python MongoDB AWS
01 3+ Years Experience
02 14+ Apps Built
03 60% Faster APIs
04 25% Cost Reduction
Node.jsPythonMongoDBPostgreSQLAWSJavaScriptDockerNginxRedis
01Systems Capability

Built beyond the happy path.

The engineering disciplines behind backends that remain understandable, observable, and ready to scale.

Architecture is only valuable when it survives production pressure. Every capability here is applied with security, observability, and maintainability in view.

SYS.01

Backend Engineering

  • Scalable Architectures
  • Production-grade REST API Design
  • Modular Services & Microservice Patterns
  • Secure Authentication, RBAC & JWT Flows
  • API Performance, Reliability & Error Handling
SYS.02

Databases

  • MongoDB, Mongoose & PostgreSQL
  • Schema Design & Data Modeling
  • Query Optimization & Indexing Strategies
  • Aggregation Pipelines & Relational Joins
  • Performance Tuning & Scalable Data Access
SYS.03

Cloud Infra & DevOps

  • AWS Cloud Architecture using EC2, S3, Lambda, and IAM
  • Containerized Deployment with Docker
  • Production Server Setup, Nginx, SSL, and Reverse Proxy Configuration
  • CI/CD Automation for Reliable Release Workflows
  • Application Monitoring, Logging, and Runtime Process Management
ENGINEERING MATRIX Languages, services, and delivery tools used across shipped systems.
Backend / API
ExpressSocket.IOJWT
Payments
StripePaddle
Automation / Desktop
PuppeteerPyQt6
Development Tools
GitPostmanTypeScript
Database / ORM
MongooseSequelize
Logging / Process
MorganWinstonPM2
03Field Record

Production experience, measurable impact.

A progression from implementation to technical ownership across SaaS products and operational platforms.

01
Aug 2025 - Present Webexhaust, Remote

Lead Backend Engineer

  • ArchitectureOwn backend planning, service design, and technical direction for SaaS products.
  • ReliabilityBuild secure APIs, scalable data models, and production-ready release paths.
  • InfrastructureGuide cloud-ready deployments with maintainability and long-term product growth in mind.
Node.js Express.js MongoDB AWS DevOps System Architecture
02
Jun 2024 - Dec 2024 Applet Solutions, Remote

Backend Developer

  • API SystemsBuilt and maintained production backend systems for SaaS and business applications.
  • PerformanceIdentified bottlenecks and streamlined backend workflows across multiple projects.
  • Data ReliabilityImproved database access patterns and overall application stability.
Node.js Express.js PostgreSQL AWS Performance Optimization SaaS Applications
03
Jul 2022 - Mar 2024 Meta Logix, Sahiwal

Backend Developer

  • PerformanceImproved selected API response times by up to 60% through indexing and leaner query patterns.
  • InfrastructureHelped reduce infrastructure costs by up to 25% by optimizing server resource usage.
  • ArchitectureBuilt scalable APIs, efficient database models, and production-ready backend systems.
Node.js Express.js MongoDB AWS Performance Optimization Database Design
01Foundation

Engineering discipline, continuously sharpened.

Formal software engineering foundations reinforced by practical certifications and shipped work.

FORMAL FOUNDATION

Bachelor of Software Engineering

COMSATS University

  • Graduated with 3.46 CGPA
  • 3rd Position in Batch
  • Software Engineering Excellence
Key Achievements
  • Led multiple successful academic projects including The Holy Quran Listener
  • Strong foundation in software development principles and best practices
  • Demonstrated leadership in team projects and academic collaborations
CERTIFICATIONS
  1. 01
    Google Soft SkillsPakistan Freelancers Association, Aug 2024
  2. 02
    Problem SolvingHackerRank, Jun 2021
  3. 03
    Intermediate PythonDataCamp, Nov 2020
NEXT / SYSTEM / READY

The next reliable system starts with a conversation.

Bring the product challenge. I’ll help shape the architecture, delivery path, and backend that can support it.

Discuss the build
03Open Channel

Have a system to build? Send the brief.

Share the product, constraints, and current stage. I’ll respond with a clear next step.

SECURE TRANSMISSION Project inquiry

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