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Nisreen Sabir

@nisreensabir

Message

I build scalable full-stack services for cloud-native, distributed security platforms.

India

Message

I'm building scalable Golang backend services for Calsoft's next-generation Identity and Access Management platform, including authentication, authorization, access control, audit logging, and certificate lifecycle management. I migrated legacy Java IAM services to Go and deploy cloud-native microservices with Kafka, Redis, PostgreSQL, Docker, Kubernetes, and AWS.

Previously at Infosys, I built enterprise web applications and integrations for JIRA, GitHub, Sonar, and GitLab, including an XGBoost-powered Live Engineering Dashboard. I also deliver full-stack B2B marketplace features at Techdome Solutions and enjoy mentoring engineers, reviewing designs, and improving delivery through CI/CD and automated testing.

Experience

Work history, roles, and key accomplishments

Current

Senior Development Engineer (Golang)

Current

Calsoft Inc.

Oct 2025 - Present (1 year)

Designs, codes, tests, and delivers scalable backend services in Golang for a next-generation Identity and Access Management platform. Migrated legacy Java-based IAM services to Golang, improving performance and reducing latency.

Go PostgreSQL Redis Kafka Docker Kubernetes Gin OpenAPI Git GitHub Gorm AWS

Current

Senior Software Developer

Current

Techdome Solutions

Apr 2025 - Present (1 year 6 months)

Developed full-stack features for a B2B marketplace using React, Next.js, and Spring Boot. Designed and implemented robust REST APIs for order management, authentication, and payment workflows.

Next.js React Spring Boot PostgreSQL REST APIs Swagger Git GitHub

Senior Systems Engineer

Infosys Ltd.

Jul 2021 - Dec 2024 (3 years 5 months)

Developed enterprise-grade web applications using Golang, Angular, and microservices architecture. Built plugins and integrations for JIRA, GitHub, Sonar, and GitLab, and integrated an XGBoost regression model for AI-driven insights.