Saurabh Vishwakarma portrait

Saurabh Vishwakarma

Software Engineer | Backend Engineer

Backend engineer with experience building scalable systems, AI Systems and reliable cloud infrastructure across multiple production environments. Focused on distributed systems, performance, and designing services that scale.

Previously a Software Engineer Intern at Hunkaar Labs and a Freelance Software Engineer at Outlier AI. Currently working as a Software Engineer at Synthlane.

Python Go FastAPI PostgreSQL & Redis AWS & Kubernetes Terraform

Frontend Development

  • Modern React Architectures
  • Performance Optimization
  • Responsive & Interactive UIs

Backend Development

  • API Design & Development
  • Database Architecture
  • Real-time Systems

DevOps & Cloud

  • AWS Infrastructure
  • CI/CD Pipelines
  • Scalable Architecture

Work Experience

Outlier AI Freelance Software Engineer Jan 2024 – Oct 2024

Developed a Streamlit platform to benchmark 20+ AI models, improved LLM code accuracy through prompt/dataset optimization, and executed A/B evaluations delivering ~15% gains.

Synthlane Software Engineer Oct 2025 – Present

Built RBAC-enabled customer gateway with FastAPI, deployed on AWS ECS via Terraform/GitHub, improved reliability with Kubernetes/Grafana Alloy, and reduced p95/p99 latency from 450 ms to under 120 ms at 40 RPS.

Hunkaar labs Software Engineer Intern Jan 2024 – Jan 2025

Shipped FastAPI + Celery microservices with admin dashboard for 5,000+ users, integrated Razorpay payments, automated workflows with LangChain, and built real-time features (WebSockets, live streaming) with 99% uptime.

Full Stack Projects

PinSphere

A Dynamic Platform for Multimedia Sharing.

Frontend Architecture

  • • React.js Components
  • • Real-time data & synchronization
  • • Image Compression
  • • Google OAuth2.0 integration.

Backend Systems

  • • FastAPI Service
  • • Redis Caching Layer
  • • RabbitMQ Event Streaming
  • • Contextual Image Search
  • • PgVector for vector searching

Key Achievements

  • • 99.99% Uptime with Blue-Green Deployment
  • • 300ms Average API Response Time
  • • Contextual Image vector search using llama3.2 vision and Sentence Transformers.
  • • 40% Reduction in Storage usage by image compression

AI Interviewer

A voice-based AI interview simulator powered by LLaMA 3.2 and Google Whisper. It enables candidates to practice real-time interviews using speech recognition and language generation.

Voice Interaction Features

  • • Real-time speech-to-text via Google Whisper
  • • Natural conversation flow using LLaMA 3.2
  • • Headless interface (Mic/Speaker only)
  • • Dynamic audio response with TTS engine

Backend Pipeline

  • • Audio capture module receives mic input
  • • Whisper STT transcribes speech to text
  • • LLaMA 3.2 processes and generates replies
  • • TTS engine converts responses to audio
  • • Response audio streamed back to client speaker

Performance Highlights

  • • End-to-end latency under 1.5 seconds
  • • Seamless offline/on-device speech inference (optional)
  • • Modular STT/LLM/TTS components for easy scaling

Let's Build the Future Together

A full-stack developer crafting scalable, efficient, and elegant solutions using modern technologies like React, Svelte, FastAPI, Django and PostgreSQL. Driven by curiosity, build in colloraboration, and ready to take on real-world challenges.

Based in India - Available for Remote / on-site roles