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Aniket Jaiswal

@aniketjaiswal

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Senior backend engineer building secure, scalable Node.js microservices and REST APIs for fintech and SaaS platforms

India

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What I'm looking for

I’m looking to build secure, high-performance backend microservices for regulated, compliance-sensitive data—where strong system design, audit logging, and access control matter. I want an environment that values code reviews, mentoring, and automated testing with CI/CD.

I’m a Senior Software Engineer with 6+ years designing scalable backend applications, REST APIs, and distributed microservices in Node.js, TypeScript, and Python. I bring hands-on experience with PostgreSQL, MySQL, MongoDB, and Redis across high-traffic, regulated platforms where data integrity, audit trails, and access control are critical.

In my recent role, I designed and maintained backend services and APIs for high-volume financial workflows, reducing production failure rates by 25% while implementing JWT authentication, RBAC, encrypted transmission, and compliance-grade audit logging. I’ve also improved system performance by 40% through PostgreSQL query optimisation, Redis caching, and refactoring to async event-driven architecture, and I’ve delivered 99.9% uptime across 12+ distributed backend services while improving throughput by 30% and cutting release cycle time by 40%.

I’m at my best when I combine system design, performance optimisation, and strong engineering practices—code reviews, mentoring, and Agile/Scrum. I enjoy working in environments that require secure, high-performance systems and disciplined testing (TDD/unit/integration/E2E) using Jest, Mocha, and Chai, with Docker/Kubernetes and CI/CD automation on AWS and Azure.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

TransFi Pvt. Ltd.

Aug 2025 - Present (11 months)

Designed and maintained scalable Node.js/TypeScript REST API services for high-volume financial workflows, including structured error handling and comprehensive audit logging. Implemented JWT authentication and RBAC with encrypted data transmission and improved performance via PostgreSQL query optimization and Redis caching layers.

Node TypeScript REST APIs Microservices Audit Logging JWT RBAC Data Transmission PostgreSQL Query Optimization Redis Error Handling

Full Stack Developer

Otters.ai

Jul 2024 - Aug 2025 (1 year 1 month)

Designed scalable backend microservices and REST APIs for a B2B SaaS platform using Node.js/TypeScript with MongoDB and PostgreSQL, deployed on Azure Kubernetes Service. Delivered high uptime and improved performance through Docker/Kubernetes autoscaling, Azure DevOps CI/CD, Redis multi-layer caching, and NATS event-driven messaging, while mentoring engineers through code reviews and TDD practices

Node TypeScript REST APIs Microservices MongoDB PostgreSQL Azure Kubernetes Service Docker Kubernetes Azure DevOps Redis Caching NATS Performance Optimization TDD Code Review Automated Testing

Full Stack Developer

RoundPay Technomedia Pvt. Ltd

Dec 2021 - May 2024 (2 years 5 months)

Built and scaled high-performance backend systems using Node.js/TypeScript with MongoDB and Redis to support large transaction volume under peak load. Improved API performance via profiling and MongoDB query optimization, reduced production defects through TDD with Jest/Mocha/Chai integrated into CI/CD, and contributed to scalability strategies including horizontal scaling and event-driven async p

Node TypeScript MongoDB Redis Microservices Performance Profiling MongoDB Aggregation Optimization Connection Pooling TDD Jest Mocha Chai CI CD Pipelines System Design Event Processing

Full Stack Developer

Castler Pvt. Ltd

May 2021 - Dec 2021 (7 months)

Developed secure Node.js backend APIs and data integrations for a regulated enterprise financial platform using PostgreSQL data modeling, secure authentication, and structured audit logging. Led code reviews and mentored engineers, supporting defect reduction through engineering standards, documented API/deployment procedures, and automated testing within Agile sprint workflows.