The software people file with,and the person who keeps it running.

I'm Monish Bista — a senior software engineer in Marietta, Georgia. For ten years I've built and maintained enterprise software across tax and healthcare technology, most recently the commercial tax products that accounting firms depend on every filing season.

Monish Bista in a navy suit

10+ years

enterprise software engineering

C# / .NET

and SQL Server, daily

Tax & health

two regulated domains

Agentic AI

in the engineering workflow

What I do

My work sits where the rules are written by someone else and the deadline isn't negotiable — tax code that changes every year, healthcare data that has to move correctly the first time. A failed nightly job isn't an alert; it's somebody's return or somebody's claim.

Products people file with

Maintaining and modernizing commercial tax software — H&R Block Professional and ATX — for the professionals and firms whose whole season runs on it.

Automation over toil

ETL pipelines that used to be spreadsheets, deployments that used to be checklists, reports that used to be somebody's Thursday afternoon.

AI in the workflow

Agentic AI applied to real engineering work — code analysis, documentation, defect triage, release readiness — inside secure SDLC and compliance boundaries.

Where I've worked

  1. Senior Software Engineer, Wolters Kluwer

    Tax & Accounting Division · September 2019 – September 2026

    Commercial tax products — H&R Block Professional and ATX — built and maintained end to end, plus the AI-augmented workflows I introduced across several tax software teams.

  2. Software Engineer, Zelis Healthcare

    June 2015 – September 2019

    Healthcare applications in C#, .NET, and SQL Server, with SSIS pipelines moving high volumes of claims data and automation replacing manual operations work.

  3. IT Intern, Zelis Healthcare, formerly GlobalCare

    June 2013 – June 2015

    EDI testing with trading partners, X12 and HCFA 1500 mapping, and the first scripts I wrote to kill repetitive work.

Full experience  ·  Resume

About

I studied computer science at Kennesaw State and went straight into healthcare software, starting as an intern mapping X12 claim files and staying because the problems kept being interesting. Claims data is messy, the rules change, and every integration has a partner on the other end with their own idea of what a valid file looks like. Tax software turned out to be the same shape of problem on a harder calendar.

Lately much of my attention has gone to putting agentic AI where it actually helps — summarizing dense compliance rules, generating documentation nobody has time to write, triaging defects faster — without loosening the review and security standards that make the work trustworthy.

I work best on teams where engineers review each other honestly and documentation counts as part of the deliverable. I'd rather spend an afternoon making a deployment boring than spend a night fixing an exciting one.

What I work with

Get in touch

Email is the fastest way to reach me. I'm happy to talk about backend work, tax and healthcare systems, or putting AI to work inside a secure SDLC.