TabWise
Open-source developer tool
A Chrome extension for organizing tabs, grouping them, and restoring a browsing session.
700+ installs · About 45 weekly active users · Featured on the Chrome Web Store
- React
- TypeScript
- Manifest V3
- Tailwind CSS
Software engineer · Mumbai
Siddhesh Shirdhankar
I build software that solves real problems.
I'm a software engineer focused on product engineering, developer tools, and the systems behind reliable applications.
From shipping browser extensions used by real people to building SaaS products and exploring cloud infrastructure, I enjoy taking ideas from concept to production.
- Product Engineering
- React & TypeScript
- Developer Tools
- Cloud Infrastructure
Selected work
All projectsShipped products and professional product work. Each case study covers the problem, the decisions, and what I contributed.
GetSecret
Open-source product
An open-source platform for sharing a secret through a link that expires or can be read only a limited number of times.
One-time retrieval and expiry · Open source and self-hostable · TypeScript SDK
- React
- TypeScript
- NestJS
- PostgreSQL
- Prisma
- Redis
- Docker
Encatch
Professional product engineering
SaaS feedback infrastructure for configurable surveys. I contribute the admin panel, the public website, and the Web SDK.
Production SaaS · Admin panel, public site, and Web SDK · Team product
- TanStack Start
- Next.js
- TypeScript
- React
- REST APIs
Experience
Associate Software Engineer
July 2024 – Present
Cyber Managers Software Services
Working across software development, product engineering, and deployment workflows. Contributing to web applications, customer feedback products, and CI/CD automation.
- Contributed to Docker-based deployment workflows and GitLab CI/CD pipelines supporting automated builds, releases, and production deployments.
- Built the Encatch Admin Panel using TanStack Start, implementing authentication, survey management, customer feedback workflows, and analytics.
- Developed and optimized the Encatch website using Next.js, focusing on SEO, page performance, and responsive user experience.
- Engineered and published a framework-agnostic Web SDK to npm, enabling third-party applications to integrate configurable surveys through dynamic rendering and REST API-driven configuration.
Writing
Articles on extensions, secret sharing, and the systems around production software.
· Medium
Understanding East-West Traffic in Kubernetes
What service-to-service traffic looks like inside a cluster, and how Istio uses mTLS and authorization policy to limit which workloads can call each other.
· Medium
Inside a Modern Chrome Extension: Understanding the Architecture Behind Manifest V3
What building TabWise made concrete about Manifest V3: the extension is several isolated runtimes, and the service worker cannot hold state in memory.
· Medium
I Built 1Note — A Secure Ephemeral Note Sharing Tool (and What It Taught Me)
How the earlier version of GetSecret enforced a single read with an atomic update, and why that version chose server-side encryption over a zero-knowledge design.
· Medium
Building a Secure Sharing System: Why Slugs Matter More Than Hashes
Why a share link should be an opaque slug for access, not a hash of the secret, once you need expiry, revocation, and one-time retrieval.
Read all articles · 24+ engineering articles on Medium
About
I'm an Associate Software Engineer at Cyber Managers Software Services. I work on Encatch, a SaaS product for customer feedback, and on the deployment workflows around it.
Outside that job I build and maintain my own software, including TabWise and GetSecret. My day-to-day work is frontend and full-stack product engineering. Cloud infrastructure is the area I am actively developing alongside that.
Have something interesting to build?
I'm always interested in discussing software, product ideas, developer tools, and opportunities to build useful things.