YASVANT SINGH YADAV

YASVANT SINGH YADAV

Senior Backend Engineer
India
Full-time Hybrid

About Me

Senior Backend Engineer and Tech Lead with 8+ years of hands-on experience designing, building, and scaling production Node.js and TypeScript systems. Proven track record of owning end-to-end backend architecture — REST …

Experience

Senior Backend Engineer

Blue Spire · Hyderabad , Telangana , India
May 2024 - Jun 2026 · 2 years 1 month

<p>Owned migration of 16 legacy REST APIs to GraphQL across core banking domains (wire transfers, fund transfers, credit/debit cards, stop check, remote deposit capture, user management).</p><p> Reduced GraphQL over-fetching by 40% and improved API response latency by 25% through query optimization and schema design.</p><p> Drove AWS serverless migration using Lambda, API Gateway, and SQS, contributing to 20% infrastructure cost reduction.</p><p> Built event-driven workflows integrating S3, SNS, Cognito, and WebSocket for real-time banking operations.</p><p> Collaborated with a team of 10+ engineers, resolved critical production incidents, and actively participated in architecture discussions and code reviews.</p>

Senior Backend Engineer

Nava Software · Hyderabad , Telangana , India
Sep 2023 - Mar 2024 · 5 months

<p>Designed and implemented backend architecture from the ground up using Node.js, REST, and GraphQL.</p><p> Built serverless event-driven workflows with AWS Lambda, API Gateway, SQS, and SNS.</p><p> Implemented secure authentication and authorization using AWS Cognito.</p><p> Integrated S3, CloudWatch, and IAM for storage, monitoring, and access control.</p>

Backend Engineer

Qentelli Solutions · Hyderabad , Telangana , India
May 2023 - Aug 2023 · 3 months

<p>Built backend APIs for multi-region food ordering and payment platforms (Asia & Europe).</p><p> Integrated Stripe for secure, multi-region transaction processing.</p><p> Developed GraphQL and REST APIs connecting frontend applications to kitchen and inventory systems.</p><p> Implemented SSO authentication and managed PostgreSQL + MongoDB databases.</p>

Backend Developer

Tringapps LLP · Chennai , Tamil Nadu , India
Jan 2021 - Apr 2023 · 2 years 3 months

<p>Built multi-tenant news publishing platform serving 100+ media organizations with isolated user management and content hierarchies.</p><p> Designed product listing and content management APIs with per-organization configuration and access control.</p><p> Implemented GraphQL APIs, CDN integration, and AWS services (Lambda, SQS, API Gateway, S3) for scalable content delivery.</p><p> Integrated Salesforce and ARC APIs for organization provisioning and content ingestion.</p>

Backend Developer

Satsyil IT Solutions · Ramachandrapuram , Andhra Pradesh , India
Dec 2015 - Dec 2020 · 5 years

<p>Developed BSR 3.0 (React/Node.js) platform for survey-to-review conversion and physician directory ratings.</p><p> Built Compass CMS microservices platform with Okta SSO, AWS ElastiCache, and REST APIs.</p>

Backend Developer / Software Engineer

Multiple organizations (wmBrand, Krish Technologies, Abbacus, Apex International) · Abbacus, Apex International)
Jan 2002 - Jan 2014 · 12 years

<p>Delivered backend systems and web applications using PHP, MySQL, and JavaScript for various clients.</p>

Skills

Node.js TypeScript JavaScript NestJS Express.js Fastify Apollo GraphQL Next.js React.js Microservices Event-Driven Architecture GraphQL REST APIs PostgreSQL MySQL MongoDB DynamoDB Redis pgvector AWS Lambda API Gateway SQS SNS Cognito S3 CloudWatch IAM RDS ElastiCache EC2 CloudFront OAuth2 JWT Okta Docker CI/CD GitHub Actions Jenkins Jest Datadog OpenAI API RAG Embeddings Vector Databases LLM Integration Stripe SSE WebSocket Salesforce ARC APIs
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