TARUN SINGH

Full Stack Engineer

https://talent.gravityer.com/tarun-singh-3773826

Full Stack Engineer with 5+ years in React, Node.js & AWS

Tech Prastish Software Solutions Pvt. Ltd.

Key Strengths

Extensive experience in designing and owning full-stack fintech and SaaS systems, covering frontend, backend, and deployment.
Proficient in real-time systems with WebSockets, Redis pub/sub, and D3.js for charting, demonstrating strong performance optimization skills.
Deep understanding of microservices, event-driven architecture, and queue-based async processing (BullMQ) for scalable systems.
Strong expertise in AWS services (ECS, Lambda, API Gateway, ElastiCache) and DevOps practices (Docker, CI/CD, GitHub Actions).
Solid experience with modern frontend frameworks (React, Next.js, Redux Toolkit) and performance optimization techniques (memoization, TanStack Virtual).
Demonstrated ability to lead projects as a sole or lead engineer, including architecture, development, and deployment.
Experience with security best practices (OAuth2, JWT, AES-256-GCM, HMAC-SHA256, RBAC, Rate Limiting, Webhook Idempotency).
Proven track record in database design, query optimization, and transaction management with MySQL and PostgreSQL.
Experience with legacy system migration (Laravel 5 to 12) with zero downtime, showcasing strong planning and execution skills.

Cultural & Operational Fit

Cultural Fit Analysis

The candidate's experience spans fintech and SaaS domains, demonstrating versatility. Their role as a 'Sole Engineer' and 'Team of 3' indicates adaptability to different team sizes and levels of responsibility. The breadth of technical skills (frontend, backend, DevOps, security, databases) and exposure to various architectural patterns (microservices, event-driven, multi-tenant) suggests a strong capacity for learning and contributing across diverse projects, aligning well with a dynamic engineering culture.

Soft Skills & Operational Fit

The candidate's resume highlights leadership in project ownership, end-to-end system design, and problem-solving (e.g., reducing failures, optimizing performance, cutting overhead). Their experience in Agile/Scrum environments and maintaining unit/integration tests suggests a structured and collaborative approach to development. The focus on performance, scalability, and clean API design indicates a strong operational mindset.

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Assessing your cultural and operational fit

About

Full Stack Engineer with 4+ years designing and owning production fintech and SaaS systems end to end from React/Next.js interfaces to Node.js/NestJS microservices on AWS. As the sole or lead engineer across these products, built real-time platforms serving 1,000+ concurrent users and payment systems handling 3,000+ daily transactions, owning architecture, frontend, backend, and deployment. Core expertise in React, TypeScript, Node.js, NestJS, PostgreSQL, Redis, and AWS, with a focus on performance, scalability, and clean API design.

Top Skills

React.jsMicroservicesEvent-driven architectureD3.jsRbac

Experience

Tech Prastish Software Solutions Pvt. Ltd.

Full Stack Engineer

April 1, 2022 – Present

Mohali, Punjab, India

Appventurez

iOS Developer

March 1, 2021 – March 1, 2022

Noida, Uttar Pradesh, India

Key Strengths

Extensive experience in designing and owning full-stack fintech and SaaS systems, covering frontend, backend, and deployment.
Proficient in real-time systems with WebSockets, Redis pub/sub, and D3.js for charting, demonstrating strong performance optimization skills.
Deep understanding of microservices, event-driven architecture, and queue-based async processing (BullMQ) for scalable systems.
Strong expertise in AWS services (ECS, Lambda, API Gateway, ElastiCache) and DevOps practices (Docker, CI/CD, GitHub Actions).
Solid experience with modern frontend frameworks (React, Next.js, Redux Toolkit) and performance optimization techniques (memoization, TanStack Virtual).
Demonstrated ability to lead projects as a sole or lead engineer, including architecture, development, and deployment.
Experience with security best practices (OAuth2, JWT, AES-256-GCM, HMAC-SHA256, RBAC, Rate Limiting, Webhook Idempotency).
Proven track record in database design, query optimization, and transaction management with MySQL and PostgreSQL.
Experience with legacy system migration (Laravel 5 to 12) with zero downtime, showcasing strong planning and execution skills.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit

TARUN SINGH

Key Strengths

Cultural & Operational Fit

About

Top Skills

Skills

Education

Experience

Key Strengths

Cultural & Operational Fit