Lead Software Architect | Cloud & AI Engineering | Full-Stack (Backend-Focused)
I design and lead cloud-native and AI-powered systems for high-growth startups and enterprise teams, including organizations operating at S&P 500 scale, with a focus on scalability, cost efficiency, and real-world impact.
What I actually do:
- Build and lead engineering teams that ship products on time (yes, it's possible)
- Architect cloud solutions that scale without breaking the bank, I've saved companies 40-60% on AWS costs through strategic FinOps
- Design AI systems using LLMs that solve real problems, not just demo well
- Bridge the gap between "what the business wants" and "what engineering can deliver"
- Implement DevOps practices that reduce deployment time from days to minutes
Backend & Architecture
- Node.js (NestJS) β’ Python (FastAPI, Flask) β’ TypeScript
- System Design β’ Microservices β’ RESTful & GraphQL APIs
- PostgreSQL β’ MongoDB β’ Redis β’ TimescaleDB
Cloud & DevOps
- AWS (Lambda, Bedrock, DynamoDB, API Gateway) β Certified
- Azure (AI Foundry, Functions, Cosmos DB) β Certified
- Docker β’ Kubernetes β’ Serverless Framework β’ Airflow ETL
- Infrastructure Optimization β’ FinOps
AI & Machine Learning
- LangChain / LangGraph β’ RAG Systems β’ Semantic Search
- AWS Bedrock β’ Azure AI Foundry β’ OpenAI β’ Anthropic
- Vector Databases (pgvector, FAISS) β’ Prompt Engineering
- LLM Observability (LangSmith, RAGAS)
Frontend
- React β’ Next.js β’ TypeScript
- Real-time collaborative features β’ State management
- Performance optimization β’ Modern UI/UX patterns
Finny β Co-Founder & Chief Architect
Built financial wellness platform serving 60K+ users (5K daily active). Scaled NestJS backend with MongoDB and TimescaleDB for real-time analytics. Developed Next.js frontend with intuitive financial tools that improved user engagement and retention. Acquired by Origin.
Veezu β FinOps & Infrastructure Optimization
Led Azure infrastructure and DevOps optimization achieving $15K monthly cost reduction within first 3 weeks. Implemented resource right-sizing, optimized compute workloads, streamlined CI/CD pipelines, and established monitoring for ongoing cost management. Delivered system integrations and performance improvements for enterprise taxi platform.
Sage β Head of Engineering
Built multilingual WhatsApp AI assistant using LangChain and AWS Bedrock. Implemented RAG-based employee benefits search with pgVector, enabling natural language queries across structured data.
Expa β Consulting Engineer
Developed LLM-powered web scraping system extracting 20K+ job postings daily from 50+ healthcare institutions. Built Airflow ETL pipelines and multilingual semantic search using PostgreSQL with pgvector.
GH05T β Consulting Engineer
Created gh05twriter.io using Grok AI and LangChain for automated content creation. Built brand voice profiles and sentiment analysis system with spaCy and RAG for social media analytics.
Bejamas β Engineering Manager & Lead Pre-Sales Engineer
Manage 10+ engineers across multiple enterprise projects. Increased team billability from 60% to 80%+. Secured 70% of new contracts through technical audits and proposals for clients including Alpro (Danone) and RudderStack.
Nexuhm β AI-Assisted ATS Platform
Built candidate screening platform using Azure AI Video Indexer for sentiment analysis and speech evaluation. Secured Microsoft for Startups credits. Multi-tenant architecture with MongoDB and Kubernetes.
- Jamstack and Serverless Databases
- Product-Oriented Development with Xata.io
- PlanetScale: Relational Databases in Serverless
- Backend/Cloud Architecture roles with AI integration
- Technical leadership positions in high-growth startups
- Consulting on scalable system design and AI adoption
π§ aren@aren.pro | πΌ LinkedIn




