Balraj Singh Kushwaha
Python Developer / Cloud Engineer with 3.5 years of experience building scalable backend services, AI-powered applications, and cloud infrastructure. Proficient in Python, FastAPI, AWS, and GCP, with hands-on experience in REST APIs, Microservices, Distributed Systems, and production automation. Experienced in Generative AI, LLMs, AI Agents, Multi-Agent Systems, RAG, LangChain, Hugging Face, Prompt Engineering, and Vector Databases (Qdrant, Pinecone, ChromaDB).
At Heurist AI, contributed to AI agent platforms, LLM integrations, intelligent workflows, and distributed systems supporting real-world applications. Skilled in PostgreSQL, MySQL, DynamoDB, Docker, Linux, and monitoring with Prometheus, Grafana, AWS CloudWatch, and Langfuse, with experience in backend architecture, API design, cloud operations, deployment, and production support.
Experience
Backend & Infrastructure Engineer
Heurist AI
Bangalore
Developed backend services for Heurist Agent Framework, supporting 40+ AI Agents and automations.
Built and maintained DeepSearch, a distributed Multi-Agent System for research and information retrieval.
Integrated LLMs, external APIs, and data providers into production applications and agent workflows.
Set up monitoring and observability using Langfuse, AWS CloudWatch, and Grafana.
Worked on API authentication, usage tracking, credit management, and subscription & user handling.
Managed 15+ production servers across AWS, GCP, and bare-metal supporting AI workloads and GPU systems.
Maintained CI/CD pipelines, GitHub Actions, and operational automations across Slack, Discord, Telegram, and X/Twitter, Worked with ddb, postgres, mysql, redis, docker, inference system .
Automated infrastructure and operational workflows using Python.
Backend development, REST APIs, database design, cloud infrastructure, system design.
Python Developer
Fealty Technologies Pvt. Ltd
Built and maintained Python backend services and REST APIs for SaaS applications.
Worked with FastAPI and PostgreSQL to develop new features and improve existing systems.
Designed database tables, wrote queries, and handled data migrations as application requirements evolved.
Integrated third-party APIs and payment providers based on client and business requirements.
Automated repetitive operational tasks using Python, reducing manual work for internal teams.
Fixed production issues, investigated bugs, and worked closely with clients to deliver requested features.
Participated in requirement discussions, development, testing, and deployment of backend applications.
Education
Chameli Devi Group of Institutions
B.Tech
Indore, M.P., India
Skills
Technical Skills
Languages & Frameworks
Python, FastAPI, RAG, HuggingFace, VectorDB, Langchain
AI & LLM Applications
LLMs, Generative AI, AI Agents, Multi-Agent Systems, RAG, Prompt Engineering
Backend & API Development
REST APIs, Microservices, Distributed Systems, API Design, x402 Payments
Databases
PostgreSQL, MySQL, DynamoDB, Relational Schema Design, Qdrant, Pinecone, ChromaDB
Cloud & Infrastructure
AWS, GCP, Docker, Linux Servers, Bare Metal & Multi-GPU Systems
Monitoring
AWS CloudWatch, Prometheus, Grafana, System Monitoring, Langfuse, Dozzle
Automation & Scripting
Bash, Python Scripting, n8n Workflows, Playwright
Version Control & CI/CD
Git, GitHub, GitLab, Bitbucket
Data Processing
Large Datasets, PDF Extraction, Data Analysis, Markdown, Product documentation/docs
System Administration
Operating Systems
Linux (Ubuntu, Debian, CentOS, Fedora), Windows Shell
Cloud & Server Management
AWS, GCP, Linux Administration, Server Provisioning, Infrastructure
Containers & Orchestration
Docker, Containerized Applications, CI/CD Pipelines, GitHub Actions
GPU Infrastructure
NVIDIA CUDA, GPU Drivers, Multi-GPU Systems, AI Inference Workloads
Cloud Platforms
AWS , GCP, Bare metal providers
Automation & Operations
Bash, Python Automation, Cron Jobs, systemd, Slack/Discord/Telegram Automations
Networking & Security
SSH, Nginx, Reverse Proxies, SSL/TLS, API Authentication