Vivekananthan A
Independent Software Consultant | Senior Backend & AI Engineer
Bengaluru, India
v1vek
TECHNICAL EXPERTISE
v1vekananthan
PROFESSIONAL SUMMARY
Languages / Frameworks: Node.js
Independent Software Consultant with 9+ years of experience delivering
(TypeScript / JavaScript), Python (FastAPI,
AI, backend, and blockchain systems for startups and global clients.
Flask, Django), Java, Rust (Anchor), Solidity
Specialized in modular LLM-powered architectures, serverless pipelines,
(Truffle, Hardhat, Foundry)
and real-time event processing using AWS and open-source ecosystems.
AI & LLM Systems: LangChain, LangGraph,
A hands-on builder and problem solver who provides technical
RAG, Whisper, ChromaDB, Pinecone, OpenAI /
leadership, architecture governance, and rapid product execution
Claude APIs, Prompt Engineering
across domains.
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Backend & Cloud: AWS (Lambda, ECS,
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DynamoDB, API Gateway), Microservices,
STARTUP & PROFESSIONAL EXPERIENCE
Event-driven Architecture, Kafka, GraphQL
Subscriptions, WebSockets
Blockchain: Solidity (EVM), Rust (Solana), zk-
Jiritsu Network, Founding Engineer / Senior Software Engineer
MPC, Cross-Chain Bridging, Vault Minting,
Apr 2022 – Jul 2025 | Remote
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Consensus Systems
Infrastructure: Docker, Terraform, GitHub
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Actions, Serverless Framework, Kubernetes,
Monitoring / Observability (Grafana,
Prometheus)
Leadership & Oversight: Architecture
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Reviews, Code/PR Reviews, Technical
Governance, Scalability Planning
Architected and built zk-MPC node framework for verifiable off•
chain computation and on-chain proof posting.
Deployed Solana and EVM contracts (Ethereum, Avalanche, BNB)
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with UUPS / Diamond upgradeable patterns.
Designed hybrid on-chain/off-chain consensus systems for
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verifiable oracle price data and secure proof aggregation.
Built permissioned vault contracts enforcing validated proofs before
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minting.
Stack: Node.js, TypeScript, Solidity, Rust, zk-MPC, Solana, EVM,
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FREELANCE PROJECTS
Fractional CTO (Ongoing Engagement)
Sep 2025
Overseeing architecture and code quality
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for a Django-based platform of three
microservices, ensuring best practices in
Celery orchestration, Redis, and
PostgreSQL schema design.
Streamlined PR governance, CI/CD, and
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scaling workflows, improving release
stability
Stack: Python, Django, Celery, Redis,
PostgreSQL, Next.js, Microservices
Architecture, Stripe
Avalanche Subnets, Docker, AWS
Pixto Digital Technologies, Co-Founder / Backend Lead
Jun 2020 – May 2023 | Bengaluru, India
Founded and built SaaS platform for photographers managing 100+
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clients, 100k+ photos, and ~20k uploads / month.
Developed scalable Node.js + AWS microservices for image
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ingestion, resizing, and delivery.
Integrated subscription-based billing (Razorpay) and vendor APIs
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for full print-fulfillment automation.
Impact: Cut photo delivery time by 60% and achieved 99.9%
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uptime.
Stack: Node.js, Python, MySQL, Redis, AWS (EC2, ECS, S3), SSE,
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Razorpay, Stripe
Fanlytiks, Co-Founder / CTO & Engineering Lead
Sep 2017 – May 2020 | Bengaluru, Inda
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Led a 10-member engineering team building a real-time analytics
and engagement platform for sports teams and rights holders.
AI Agent & RAG Frameworks
Designed dual-path (hot + cold) data architecture with Kafka → Spark
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Developed modular Retrieval-Augmented
→ PostgreSQL/Elasticsearch and Airflow → Redshift for historical
Generation (RAG) pipelines using
trends.
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LangChain and LangGraph, integrating
Implemented GraphQL Subscriptions / WebSockets for sub-second
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ChromaDB for vector storage and
updates across dashboards.
timestamped caching to optimize retrieval.
Integrated CricketGateway.com
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(1.3M+ users) and Dotball
Built a FastAPI backend for document
Fantasy App, handling 1M+ dynamic user events with tiered
ingestion, query orchestration, and LLM-
rewards.
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based contextual responses.
Impact: Scaled pipeline to 1M+ live match events, reduced latency
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Applied the framework to a YouTube
by 30%, and delivered analytics pilots for BCCI and IPL team SRH.
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Question-Answering System, combining
Stack: Node.js, Python, GraphQL, Kafka, Amazon Kinesis,
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Whisper transcription,
PostgreSQL, Redis, Airflow, Spark, AWS
SentenceTransformer embeddings, and
LangChain-based retrieval for timestamplinked answers.
🔗 youtube-qa-rag
Amazon India Pvt. Ltd.
SDE I
Jul 2016 – Aug 2017 | Bengaluru, India
HaHa.me - Crypto Portfolio Tracker
Worked in the Outbound Marketing Automation team, launching
Architected multi-chain wallet backend
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personalized recommendation-based email campaigns.
across Ethereum, Solana, BSC, and BTC
Built CLI tools and used big data pipelines to derive insights from
using AWS Lambda + SQS for event-driven
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large-scale customer behavior.
processing.
Tech Stack: Java, Spring, Hive, HQL, AWS EMR, S3, DynamoDB, EC2
Implemented real-time balance sync with
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sharded DynamoDB, achieving sub-second
reconciliation and zero dropped blockchain
SDE Intern
events.
Dec 2015 – Jun 2016 | Bengaluru, India
🔗 haha.me
Contributed to automation and personalization tools within the
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same team.
Kontra - Security Training Platform
Contributed to interactive OWASP-based
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tutorials for developer security education.
Oracle Retail, Intern
Developed vulnerability scenarios and
Jun 2014 – Nov 2014 | Bengaluru, India
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secure code examples across Node.js,
Developed automation tools for the EIT team, including SVN
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Python, and Java.
integration packages and configuration updaters in Java.
Serverless ETL Pipelines
EDUCATION
Automated image resizing and
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watermarking pipelines using AWS Lambda
+ S3 triggers.
Designed event-driven orchestration using
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SQS and database triggers for real-time
MSc. Software Engineering, Coimbatore Institute of Technology
2011 – 2016 | Coimbatore, India
progress tracking and notification delivery.
RECOGNITIONS
Co-founded and led engineering at Fanlytiks and Pixto, early-stage
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startups in analytics and SaaS.
Featured Startup (Fanlytiks) at RISE Conference, Hong Kong
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Technical contributor to Jiritsu zk-MPC whitepaper
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Served as technical reviewer / code governance advisor for SaaS
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products.
