Kaustubh Jaiswal

cat about.md

// about me

I'm Kaustubh, a Technical Analyst at AdvantageGo (Coforge → Sapiens since June 2025), Gurugram — 8+ years deep in the same domain, which sounds like a long time until you realize it's actually two platforms and one very long-running architecture conversation: Underwriting Workbench and EXACT 5.0, enterprise P&C insurance software that quietly decides whether a claim gets processed correctly.

Day to day, that means full-stack work across .NET, Angular, TypeScript, and SQL Server — designing high- and low-level architecture for modules built from scratch, optimizing database queries and Web API response times, working across microservices and modern-monolith setups, and mentoring the occasional junior developer through their first production bug. I'm AZ-900 certified and have picked up a "Pat on the Back" and a "Technovator" award along the way, which I choose to believe means I'm good at this and not just good at Slack messages.

Right now I'm sharpening the senior-level fundamentals — the kind of things that separate "it works" from "it works, scales, and won't page you at 2am": query plans, tracking vs. no-tracking EF Core reads, and why IQueryable deferring execution is a feature, not a trap door.

POLICY NO. 8+YRS-GTG

Grinding LeetCode between sprints
32 public repos, mostly "practice" that got serious
Insurance by trade, debugger by temperament
Based in Gurugram, India

currently debugging: the difference between IEnumerable and IQueryable at 11pm, for the fourth time this week.

cat package.json

// stack & tools

dependencies — production-tested, not tutorial-tested

Backend

C#.NETEntity FrameworkLINQMicroservicesModern Monolith

Frontend

AngularTypeScriptHTML/CSS

Data

MS SQL ServerQuery OptimizationIndexing Strategy

Cloud & Tools

Microsoft AzureAzure App InsightsVisual StudioVS CodeGit

Domain

P&C InsuranceUnderwriting WorkbenchAgile / Scrum

ls ./projects

// featured work

~/kenkage/

Practice-Session featured

C# 100%

A categorized coding-interview vault — 140+ commits deep — covering Arrays, Binary Trees, Dynamic Programming, LinkedLists, Stacks, Queues, Searching, Sorting, Sets, Strings, and Tries. Built for genuine interview prep, not a one-off assignment.

Data StructuresAlgorithmsInterview Prep

CsvToJson

A utility for converting CSV data into structured JSON — the kind of small tool that quietly saves an afternoon of manual data wrangling.

JsonToCharts

HTML

Turns raw JSON data into visual charts — a practical bridge between backend output and something a stakeholder can actually read in a meeting.

Seat-Allocation

CSS

A seat allocation layout system — front-end structuring exercise focused on grid logic and visual clarity.

→ view all 32 repositories on GitHub

git log --stat experience

// experience

commit Mar 2019 — present · HEAD

Technical Analyst @ AdvantageGo (Coforge → Sapiens, Jun 2025)

Leading development of critical modules and services for the Underwriting Workbench project. Designing high- and low-level architecture for scalability and maintainability, optimizing database queries and Web API response times, building modules from scratch with .NET, Angular & SQL, and mentoring junior team members along the way.

.NETAngularSQL ServerArchitectureMentoring

commit Dec 2017 — Mar 2019

Software Engineer @ AdvantageGo (Coforge)

Contributed to design and development of the EXACT 5.0 + Advantage Suite Workbench, working on an insurance-domain product from its earliest planning phase. Delivered fast turnarounds for the sales demo team and owned modules end-to-end from inception to deployment.

.NETAgileInsurance Product

tag: recognition

"Pat on the Back" & "Technovator" awards

Internal recognition for outstanding contribution and exceptional performance during a quarter — proof the debugging paid off.

tag: education

B.Tech, Computer Science — 2017

Ghaziabad, India.

// about me

// stack & tools

// featured work

// experience

// let's talk