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You will get a serverless API in NodeJS/Python/Java

Vivekananthan A.Status: Offline
Vivekananthan A.
5.0
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Let a pro handle the details

Buy Custom Website Programming services from Vivekananthan, priced and ready to go.
Vivekananthan A.Status: Offline
Vivekananthan A.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Vivekananthan, priced and ready to go.

Project details

Experiences:

In developing and deploying complex serverless Lambda applications in Nodejs and Python. Have developed Lambda APIs for Image Processing, Realtime data Processing, S3 triggers, etc.
Worked at Amazon as an SDE for 2+ years. Using Amazon infrastructures for more than 5 years.


Expertise in:

AWS Lambda, AWS API Gateway, S3, Cloudwatch, Firehose, DynamoDB, RDS, EC2
Javascript, NodeJS, GraphQL
Python, Django, Apache Airflow
Mysql, PostgreSQL, MongoDB
Nginx, Apache


If interested lets have a chat and then decide on the pricing.



Thanks!
Programming Languages
JavaScript, Python, Java
Coding Expertise
Performance Optimization, Security, W3C Markup Validation Service

What's included $100

These options are included with the project scope.

$100
  • Delivery Time 1 day
  • Number of Revisions 1
  • Number of Pages 1
    • Source Code
5.0
11 reviews
100% Complete
(11)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

EM

Eva M.
5.00
Nov 6, 2025
Senior Engineer / Fractional CTO (Oversight → Future CTO)

DF

Dov F.
5.00
Aug 14, 2025
Back end developer (NodeJS/Express, AWS, Linux) It was great working with Vivek, he'll be a great asset to your team!

DF

Dov F.
5.00
Jul 22, 2025
Back end developer (NodeJS/Express, AWS, Linux) Vivek is extremely professional, efficient and dedicated.

DF

Dov F.
5.00
Jan 1, 2024
Back end developer (NodeJS/Express, AWS, Linux)

CH

Chris H.
5.00
Jul 8, 2022
Serverless developer for stock watchlist app
Vivekananthan A.Status: Offline

About Vivekananthan

Vivekananthan A.Status: Offline
Senior Backend Engineer | Architect | Fractional CTO | Blockchain & AI
100% Job Success
5.0  (11 reviews)
Bengaluru, India - 4:15 pm local time
💡 Currently available for new projects. 9+ years of experience building high-performance backend systems, AI/agentic workflows, and blockchain integrations for Amazon, startups, and Web3 companies.

I help founders and teams go from MVP → production by designing systems that are secure, scalable, and fast. From SaaS platforms and decentralized infrastructure to AI-driven applications, I deliver clean code, robust architecture, and long-term reliability.

Core Specialties
• Backend Architecture & APIs: Node.js, TypeScript, NestJS, Python (Django, Flask, FastAPI), GraphQL, REST
• Blockchain Development: Solidity, Rust (Solana, Anchor), smart contracts, price oracles, zk-MPC, tokenization, DeFi protocols
• AI/ML & Agentic Systems: LangChain, LangGraph, RAG pipelines, vector DBs, multimodal agents, automation workflows
• Cloud & DevOps: AWS (Lambda, ECS, API Gateway, RDS, CloudFront, Kinesis, SQS, SNS), Docker, Kubernetes, Terraform, CDK
• Data Engineering: PostgreSQL, MySQL, MongoDB, Redis, RabbitMQ, Kafka, Spark, Airflow

Leadership & Architecture
• Fractional CTO & Tech Lead: Led distributed teams, enforced repo hygiene, reviewed PRs, and delivered risk/oversight reports.
• System Design at Scale: Architected multi-tenant SaaS platforms, multi-server backends, and high-throughput pipelines for fintech, healthcare, and marketplaces.

Notable Projects
• Jiritsu Network: Built secure EVM & Solana smart contracts, zk-MPC integrations, and contributed to Layer-1 infrastructure.
• HaHa.me (Crypto Portfolio Tracker): Freelance — built real-time blockchain indexing with Node.js, Redis caching, AWS ECS, SQS, and Lambda.
• Pixto (B2B SaaS): CTO role — architected image-processing pipelines with AWS Lambda/S3, automated resizing, watermarking APIs, and subscription features.
• Fanlytiks (Sports Analytics SaaS): Co-founder — designed real-time ETL pipelines ingesting millions of events via Kafka and Kinesis; optimized PostgreSQL for live dashboards.
• Amazon: Developed outbound marketing automation systems at enterprise scale using Java, Hive, and AWS EMR.
• Freelance/Advisory: Delivered NestJS backends, blockchain oracles, AI-powered RAG/agent systems, and acted as fractional CTO for early-stage startups.

If you’re looking for a senior backend engineer or fractional CTO who can design, scale, and secure complex systems, let’s connect.

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