vaibhavsagar@gmail.com linkedin.com/in/vaibhavsagar vaibhavsagar.com
github.com/vaibhavsagar
Experience
Developer, UpTrust
November 2024–February 2026
- Building social media for civilizational well-being Haskell
& Nix
- Implemented backend features including integrations with Mailtrap
and Slack, public post and comment APIs, and our waitlist
Senior
Software Engineer, Mercury March 2022–June 2023
- Building the best banking stack for startups Haskell &
Nix
- Implemented features including seamless customer reimbursement,
“magic” links for new applicants, recipient invites, and queued payments
to recipients
Software
Engineer II, KeyMe Locksmiths May 2020–February 2022
- Part of the Control Systems team working on the kiosk codebase
Haskell & Python
- Implemented support for the Ingenico iUC285 reader, enabling our
kiosks to accept contactless and chip insert payments
Software
Developer, Obsidian Systems August 2018–February 2020
- Software consulting specialising in the Reflex FRP framework
Haskell & Nix
- Improved tooling and infrastructure for the Pact smart contract
language
- Implemented features across the frontend, backend, and data pipeline
for a company that provides customer loyalty programs as a service
- Spoke at HaskellX, StarCon, !!Con, EMPEX, Compose NYC, and Strange
Loop
Software
Engineer - Global DevOps, ZALORA April 2017–July 2018
- Developing and supporting our custom cloud platform Nix &
NixOS
- Practicing reproducible, immutable, and functional
infrastructure
- Spoke at linux.conf.au, !!Con, and YOW! Lambda Jam
Tutor,
ANU College of Engineering and Computer Science Semester 1, 2012 and
2014
- Tutored COMP1100 Introduction to Programming and Algorithms
Haskell
- Taught computer science concepts with a strong emphasis on
functional programming
Education
Recurse Center, Fall 1 2016
- Learned Haskell by implementing Git parsers and serialisers
Haskell
- Made a Git internals workshop and a web service that serves a Git
repository as JSON
- Presented at the September meeting of the New York Haskell Users
Group and Hack && Tell 39
- Contributed to the Glasgow Haskell Compiler and the IHaskell Jupyter
kernel
B.
IT (Software Development)/B. Economics, Australian National University,
Class of 2013