Siddharth Agarwal · Darmstadt, DE

Full-stack engineer.
Curious by default.

I’m Siddharth. I spent four years shipping a Jira-integrated SaaS product in Java, TypeScript and Vue.js. Now I build applied and agentic AI while studying Data Science at TU Darmstadt.

Open to Werkstudent roles and internships in Germany

Explore my work Enter the playground Download résumé ↓

01 / Selected experience

From the interface
to the database.

Four years building B2B software at Navarambh, and an internship in test automation before that.

Jul 2021 — Oct 2025

SDE I → SDE II, AIO Tests

Navarambh Software Pvt. Ltd. · India

AIO Tests is a test management app that runs inside Jira, listed on the Atlassian Marketplace. QA teams use it to write test cases (including with AI), run test cycles, track defects and report on testing without leaving Jira.

aiotests.com ↗

Vue.jsTypeScriptJavaQuerydslAzure OpenAI

01Rebuilding the frontend foundationVue 3 migration · 100+ components

Led the move from Vue 2 to Vue 3 and TypeScript, reworking 100+ components and bringing in Quasar so the frontend could keep evolving.
Built 50+ reusable UI components used across the product’s main modules.

Focus / component architecture & maintainability

02Making data move fasterUp to 40% faster workflows

Cut load times on key workflows by up to 40% by merging APIs and rewriting heavy queries with Querydsl.
Owned Java services for large PDF exports, data import/export and migrations between product versions.

Focus / backend services & query optimisation

03Bringing AI into real workflowsGenerative AI features in production

Took generative AI features on Azure OpenAI from prompt design to production; they became part of how new customers were won.
Used the Atlassian APIs so users could create Jira issues and see test data without leaving their workflow.

Focus / applied AI & product engineering

04Before that: SDET intern at Frugal TestingLoad tests at 1,000+ concurrent users

Load-tested auction sites and banking portals with JMeter at 1,000+ concurrent users and helped tune them.
Wrote end-to-end Selenium suites in Java that widened test coverage.
Interviewed 20+ candidates and mentored the next group of interns on test automation.

Jan — Jun 2021 · India

Experience and metrics from my résumé. Employer source code isn’t published here.

02 / Recent project

Code Mode for
AnythingMCP.

Black Forest Hackathon, Oct 2026 · Team of five · Challenge set by KOCH Freiburg GmbH

The problem

AI agents that call business tools directly tend to pull whole tables into their context. That is slow, expensive, and often leaks data the agent never needed.

What we built

A sandbox for AnythingMCP, an open-source MCP gateway. The agent writes a short JavaScript script, the script runs next to the connectors in an isolated V8 sandbox, and only the final answer goes back to the model.

The hardest part

Understanding the problem. KOCH wanted permissions and different levels of access built in, so we had to find a design that worked well, looked good and fit their setup, while still covering everything they expected.

The tradeoff

Keeping data out of the model means running code the model wrote. So the sandbox gets the user’s own permissions and nothing more: it refuses writes, has no network access or secrets, cannot reach other tenants, and stops runaway scripts.

My part

I broke down the challenge and decided with the team what to build, steered the build (much of the code was written with AI coding agents), and debugged and fixed the issues that came up on the way to a working demo.

1.69 MB → 41 Braw tool output vs. Code Mode answer on one query

5th of 14final ranking

3 days16–18 Oct 2026

Agent is asked: “What happened to order 12345?”

const o = await tools.orders.get({ id: 12345 })
const u = await tools.users.get({ id: o.customer_id })
const s = await tools.shipments.find({ order: o.id })
return { status: s.status, eta: s.eta, customer: u.name }

{ "status": "delayed", "eta": "2026-10-19", … }

Raw tool calls

1.69 MB

Code Mode

41 B

Same answer, about 10 tokens instead of 422,500. From our hackathon benchmark.

03 / The playground

Small experiments,
run in your browser.

Four things to try, from the request timing behind my backend work to two game bots that explain their moves. No accounts, no setup.

01 / Systems

Where does the waiting happen?

Change the workload and request strategy, then watch an interface get its data.

02 / Game AI

Two games, two kinds of bot.

Tic-tac-toe, solved completely. Connect Four, too big to solve, so its bot estimates. Both show their reasoning.

03 / Algorithms

Find a way through.

Draw a maze and watch breadth-first search and A* race for the shortest path.

04 / Guided assistant

Meet the engineer.

Ask about my experience, AI work and skills. Prepared answers drawn from my résumé.

0 / 4 experiments explored · Pick one to get started.

Made for this site with help from AI coding tools · Everything runs in your browser · The assistant gives prepared answers from my résumé, it isn’t a language model · Source on GitHub

04 / A little context

An engineer.
A student. A tinkerer.

I like the part of engineering where a product gets noticeably better for the people using it.

A page that loads faster, a migration nobody has to think about afterwards, an AI feature that saves someone real work instead of just demoing well. That’s what four years on AIO Tests taught me to care about.

Today I’m doing an MSc in Computer Science with a Data Science focus at TU Darmstadt, and exploring applied and agentic AI alongside it. I also love hackathons: an unfamiliar problem, a new team and a deadline measured in days. So far they’ve had me build everything from a gesture-controlled ATM PIN pad to a sandbox for AI agents.

The full story, in one PDF ↓

Winning ATM authentication prototype · Smart India Hackathon 2020
First place for NCR Corporation’s problem statement NH447, with an ATM PIN entry system controlled by hand gestures.

Along the way

2025 — now

MSc, Computer Science

TU Darmstadt · Data Science focus

2021 — 2025

SDE I → SDE II

Navarambh Software · AIO Tests for Jira

2021

SDET Intern

Frugal Testing · JMeter load tests and Java/Selenium automation

2017 — 2021

BE, Computer Engineering

Thapar Institute of Engineering & Technology, Punjab

Things I work with

JavaVue.jsTypeScriptJavaScriptSQLQuerydslC++ReactAzure OpenAIMCPAtlassian APIsSeleniumJMeter

English (C1) · German (learning, B1)

Earlier experiments

2021 / Hardware

A printer, connected.

A working 3D printer set up for remote printing over the network with Raspberry Pi and OctoPi.

2020 / Robotics

A bot with a route.

An autonomous line-following delivery robot using Arduino, ESP8266 and Firebase.

2019 / Augmented reality

Plans with another dimension.

An Android app that places 3D floor plans on printed markers, built with Unity and Vuforia.

05 / Let’s make something

Looking for a Werkstudent or intern?
Let’s talk.

Open to Werkstudent roles and internships in software engineering and AI, and to the right full-time role. As a Werkstudent I can work up to 20 hours a week during the semester and full-time in semester breaks. Based in Darmstadt.

Say hello LinkedIn

siddharth.agarwal@stud.tu-darmstadt.de

Full-stack engineer.Curious by default.

From the interfaceto the database.