SDE-2 at DoubleTick
Shivanshu Verma
Backend engineer. I build APIs, message pipelines and the infrastructure they run on.
I work on the backend and infrastructure of DoubleTick, a WhatsApp CRM for businesses: log pipelines on Kafka and Elasticsearch, AWS Lambda container images, Docker and Terraform deploys, and role-based access control. Before that, at IIT Jodhpur, I co-built a Kubernetes scheduler that cut compute cost 28%, led web development for the TechFest platform and placed top 5 of 21 IITs in the Inter IIT cybersecurity challenge.
Selected work
Cost-efficient Kubernetes orchestration
A Kubernetes scheduler and autoscaler for GKE, implementing a published ACM paper, that bin-packs mixed workloads onto heterogeneous VMs.
- Kubernetes
- GCP
- Python
Virus detection engine
A parallel MD5/SHA-256 signature scanner plus Win32 API hooking with Microsoft Detours to watch processes live.
- C/C++
- Microsoft Detours
- MD5/SHA-256
- Win32
Prometeo, IIT Jodhpur's tech fest
IIT Jodhpur's tech fest platform: a 3D landing experience on a cached Django API with JWT auth and payments, deployed in Docker on AWS.
- Django
- Redis
- Docker
- AWS
- Nginx
- Three.js
IIT Jodhpur election system
A secure, confidential voting portal with asymmetrically encrypted ballots and biometric voter verification.
- Django
- React
- Docker
- Cryptography
Experience
- Jul 2026 — Present
Software Development Engineer II · DoubleTick
Backend and infrastructure engineer on DoubleTick's WhatsApp CRM platform: Node.js and NestJS services on PostgreSQL, Redis, Kafka and Elasticsearch, running on AWS.
- Apr 2025 — Present
Mentor · DevlUp Labs
Mentor early-stage developers in IIT Jodhpur's open-source developer community on backend development, DevOps and systems programming, and review their projects and pull requests for code quality, security and architecture.
- Mar 2024 — Apr 2025
Core team member · DevlUp Labs
Helped run IIT Jodhpur's open-source developer club and grow its membership.
- Jan 2023 — Sep 2024
Cybersecurity core member · Google Developer Student Clubs, IIT Jodhpur
Co-led the cybersecurity track: web application security, CTF and network-threat sessions, and hands-on Burp Suite, Nmap, Wireshark and Metasploit workshops.
- Sep 2023 — Dec 2023
Team member, CERT-In cybersecurity challenge · Inter IIT Tech Meet 12.0
Placed top 5 of 21 IITs. Built a Jenkins DevSecOps pipeline for Docker and Kubernetes with SonarQube, OWASP Dependency-Check and Trivy scans.
Writing
Stack
Languages
- TypeScript
- JavaScript
- Python
- SQL
- C/C++
- Bash
- Java
Backend
- Node.js
- NestJS
- Express
- Django
- REST APIs
- pg-boss
Data & messaging
- PostgreSQL
- Redis
- Kafka
- Elasticsearch
- ClickHouse
- MongoDB
Infrastructure
- AWS
- Docker
- Kubernetes
- Terraform
- Jenkins
- Nginx
- Linux
- GCP
Security
- RBAC
- IAM
- Secrets management
- SonarQube
- Trivy
- OWASP Dependency-Check
- Burp Suite
- Nmap
- Wireshark
- Metasploit
About
I came to backend engineering through security. At IIT Jodhpur I split my time between the developer club, the GDSC security team and cloud research projects. These days I work on production backend systems at DoubleTick.
I write here about backend systems, infrastructure and security: mostly things I had to figure out the hard way.
- Education
- B.Tech in Engineering Science (Computer Science and Electrical Engineering)IIT Jodhpur · 2026
- Recognition
- Top 5 of 21 IITs, CERT-In cybersecurity challenge, Inter IIT Tech Meet 12.0
- Languages
- English, Hindi