Looking for a job

Harsh Singh

@harshsingh22

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Software engineer specializing in scalable backend systems and providing real world solutions to problems.

India

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What I'm looking for

I seek engineering roles focused on building scalable, reliable systems with collaborative teams, and measurable impact.

I am a full-stack software engineer with strong backend expertise, cloud experience, and a focus on scalable, high-performance systems. I have built and optimized APIs and backend architectures that supported hundreds of thousands of users, reduced response times significantly, and ensured high uptime across multiple projects and internships.

I combine practical experience with modern stacks — Java, Spring Boot, Node.js, Next.js, Rust, PostgreSQL, Docker, and cloud platforms — and a growing focus on AI/LLM integrations and Web3 development. I deliver reliable systems, collaborate effectively with distributed teams, and drive measurable performance improvements.

Experience

Work history, roles, and key accomplishments

Current

Software Engineering Intern

Current

PTC

Jul 2025 - Present (3 months)

Implemented MQTT-based communication modules for real-time IoT device connectivity in ThingWorx and integrated optimized REST APIs for secure data exchange with external systems.

Java MQTT REST APIs PostgreSQL Gradle ThingWorx JavaScript Git Agile

Full Stack Developer

Volunteer Yatra

Feb 2025 - Jun 2025 (4 months)

Designed and deployed scalable APIs with 99.99% uptime and optimized backend performance to reduce response time by 40% via load balancing, caching, and query optimization.

Next.js AWS Docker PostgreSQL Redis Prometheus Grafana API Design

Full Stack Developer

Cannibals Media

Dec 2024 - Feb 2025 (2 months)

Architected and deployed a scalable backend supporting 100K+ active users and improved response times by 20% through query optimization and resource management.

Next.js Azure Docker Firebase JavaScript Backend Performance Optimization

Back-end Developer Intern

Zakki

Feb 2023 - Jun 2023 (4 months)

Developed and optimized scalable backend architecture with Spring Boot and PostgreSQL, improving database efficiency and contributing to a 30% increase in website traffic.