Software Engineer

Hi, I'm Pranay Das.

I build the distributed systems and high-throughput APIs that fintech and pharma companies trust with regulated data — automating regulatory pipelines at Eli Lilly, scaling Instoried to 100K+ paid users as a founding engineer, and shipping KYC/AML platforms for Natixis and Novo Nordisk.

📍 San Francisco, CA 6+ years experience
Get in touch Download Resume GitHub
Distributed Systems FinTech Agentic AI / RAG Open Source

TOP 3% TALENT

Vetted byHire me

Google Summer of Code 2024 alum · CompTIA Security+

About

Building systems that hold up under load

I'm a software engineer with 6+ years of experience building scalable distributed systems, microservices, and high-performance APIs across FinTech and pharma — including Natixis, Novo Nordisk, Eli Lilly, and YC-backed startups like Instoried. I work primarily in Python, Go, Java, and Node.js, with hands-on experience in FastAPI, Gin, and cloud-native architectures across AWS, GCP, and Azure using Docker and Kubernetes. More recently I've been applying that background to agentic AI workflows, RAG architectures, LangChain, and vector databases. I'm an open-source contributor with a strong systems and security mindset, and I hold a B.Tech in Computer Science from Sambalpur University and an MS in Computer Science from Purdue University.

Software Engineering Distributed Systems Cloud Infrastructure Event-Driven Systems Platform Engineering Applied AI

Distributed Systems

Microservices, Kafka, Temporal, event-driven architecture, concurrency & caching at scale

Backend & APIs

Python, Go, FastAPI, Gin, Flask, Django, REST, gRPC, GraphQL

Cloud & Infra

AWS, GCP, Docker, Kubernetes, Terraform, Argo CD, CI/CD

Experience

Where I've worked

Software Developer @ Eli Lilly and Company

Oct 2024 — Present · Remote
  • Automated Adverse Event and Product Complaint data flow from Lilly Safety Link into Lilly Safety System and Veeva QMS using Python, FastAPI, Temporal, and AWS, including the XML-to-JSON transform layer for regulatory submissions.
  • Built a Dose Order Management System (FastAPI, Temporal, Redis, PostgreSQL, React) for clinical site users and manufacturers.
  • Designed agentic RAG workflows (LangChain + vector databases) to help lawyers and analysts summarize legal documents.
  • Ran production deployments on Kubernetes/Argo CD and built an ingestion pipeline processing 5–10 TB of unstructured support data.

Open Source Software Developer @ Google Summer of Code

May 2024 — Aug 2024 · Remote
  • Built and published the scorecode PyPI package to fetch and store OpenSSF Scorecard data.
  • Shipped Django mixin models integrating Scorecard data into Scancode.io and PurlDB, plus a pipeline enhancing CycloneDX SBOM exports.

Software Developer @ Instoried Founding Engineer

Aug 2019 — May 2023 · Bengaluru, India
  • Founding engineer building the core SaaS platform, payment systems, and developer SDKs (Python, Go, Node.js) — scaled to 100K+ paid users across Series A and B.
  • Built event-driven systems on Kafka/SNS/SSE and microservices on Docker/Kubernetes/Redis for high-load production workloads.
  • Ran infrastructure on Terraform, AWS EC2/S3, and Jenkins, cutting hosting costs by 50%.

Software Developer @ KaptureCRM

Jan 2019 — May 2019 · Bengaluru, India
  • Built data-sync middleware in Spring Boot integrating Shopify, HubSpot, Snowflake, and NetSuite.
  • Engineered a Change Data Capture pipeline over WAL/binlog streams for near real-time incremental sync, with retry/DLQ-based fault tolerance.

Software Developer @ Aptus Data Labs

Jun 2017 — Dec 2018 · Bengaluru, India
  • Built a data-integration platform connecting REST APIs and 20+ SQL/NoSQL sources via a NoSQL-to-relational mapping layer.
  • Architected connector orchestration, schema mapping, and sync as Python/Django and Java microservices.

Projects

Selected work

Open Source · GSoC '24

scorecode

PyPI package that fetches and stores OpenSSF Scorecard data, integrated into Scancode.io and PurlDB to enrich CycloneDX SBOM exports.

GitHub PyPI
Freelance · Natixis Investments

KYC Portal

Microservices-based KYC/AML platform (FastAPI + React) with JWT auth, RBAC, and Pydantic validation. Integrated Orbis, World-Check, and Moody's sanctions screening; ML-assisted checks cut manual review by 70%.

Proprietary client project — no public repository

Freelance · Novo Nordisk

Compliance Checker

Event-driven medical-document compliance automation system in Go (Gin), using S3-triggered Lambda workers with pooled goroutines for high-throughput validation, instrumented with Prometheus metrics.

Proprietary client project — no public repository

Skills

Tools & technologies

Languages

Python, Go, Java, C/C++, SQL

Frameworks & APIs

FastAPI, Flask, Django, Gin, Node.js, Next.js, REST, gRPC, GraphQL, Temporal

Cloud & DevOps

AWS, GCP, Docker, Kubernetes, Terraform, Jenkins, Nginx, Helm, CI/CD

Databases

PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, Cassandra, Elasticsearch

Architecture

Microservices, Apache Kafka, Celery, event-driven systems, agentic AI & RAG

Education

MS Computer Science — Purdue University (2023–2025)
B.Tech Computer Science — Sambalpur University

Contact

Let's build something

Open to Software Engineer, Backend Engineer, Platform Engineer, and Distributed Systems Engineer roles — DM me on LinkedIn or email below.

Email GitHub LinkedIn Toptal