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Mumin Farooq

@muminfarooq

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Senior full-stack engineer building secure, scalable microservices and SSO.

India

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What I'm looking for

I’m looking for a role where I can architect secure, scalable microservices and SSO-driven authentication, deliver measurable performance gains, and own APIs end-to-end in Azure/AWS environments with strong CI/CD and engineering quality.

I’m a Senior Full Stack Engineer with 5.5+ years of experience building scalable, secure, and high-performance backend systems using .NET Core/ASP.NET Core, TypeScript, NestJS, and Node.js. I specialize in microservices architecture and RESTful API development, with deep expertise in enterprise authentication across OAuth2, OpenID Connect (OIDC), SAML 2.0, and JWT. I architected a configurable SSO service for multi-tenant SaaS platforms, enabling per-client protocol selection and secure credential management.

I’ve delivered SaaS platforms serving 100K+ users with 99.9% uptime across Azure and AWS, and I’m focused on measurable reliability and performance improvements—like reducing API latency by 35% using Redis caching and PostgreSQL query optimization. I build with clean architecture practices, strong CI/CD automation, and thorough testing (xUnit/Jest), collaborating in Agile/Scrum to ship features on schedule while maintaining robust API security hardening and event-driven integrations.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

SaaSvaap Inc

Oct 2025 - Present (8 months)

Architected .NET Core/NestJS multi-tenant microservices and a configurable SSO service (OpenID Connect/SAML 2.0) for 50,000+ customers, maintaining 99.9% uptime. Built secured billing REST APIs (120,000+ monthly transactions) using JWT/RBAC/claims, and reduced API response latency 35% with Redis caching and PostgreSQL query optimization.

.NET Core ASP.NET Core TypeScript NestJS Microservices Architecture RESTful APIs PostgreSQL Redis Azure Service Bus

Full Stack Software Engineer

VertexOne

Sep 2023 - Oct 2025 (2 years 1 month)

Developed enterprise SaaS systems using .NET Core, Node.js, and NestJS for 100,000+ users, building 15+ REST APIs for CRM/ERP/payment integrations. Implemented OAuth2/JWT RBAC, created billing microservices that reduced monthly effort by 25% and cycle time by 3 days, and improved high-load throughput 30% with Redis caching; reduced unauthorized access incidents to zero.

.NET Core Node NestJS RESTful APIs OAUTH2 Microservices PostgreSQL Redis Docker

Full Stack Software Engineer

Injala

Sep 2022 - Feb 2023 (5 months)

Designed .NET Core REST APIs using scalable microservices architecture for internal operations across 5+ business units, implementing RBAC for 3 user roles. Built React/Angular operational dashboards and optimized MySQL reporting (500K+ records) to improve execution speed 25%.

.NET Core Microservices Architecture RBAC React Angular MySQL SQL Query Optimization REST APIs Agile Scrum

Junior Software Engineer

ILS India

Feb 2019 - Feb 2022 (3 years)

Developed backend REST APIs using ASP.NET MVC with layered architecture, building a foundation for .NET Core clean code practices. Improved SQL Server performance with query tuning and index optimization, reducing critical report processing time by 20%, and delivered on-time Agile features across 10+ sprints.

ASP.NET MVC .NET Core RESTful APIs SQL Server Query Optimization Indexing SOLID Principles OOP Agile Scrum Unit Code Reviews

Education

Degrees, certifications, and relevant coursework

NIIT Srinagar

Graduate-level Computer Science, Computer Science

Grade: CGPA: 8

Activities and societies: Competed in a hacking/coding competition at Cluster University, Srinagar. Built a Twitter clone (hands-on full-stack project).

Studied core computer science fundamentals with a focus on data structures and algorithms (DSA). Built a hands-on full-stack Twitter clone and participated in a hacking/coding competition.