Rahul Kumar
000
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Software Engineer · Indie Game Dev · IIT Kharagpur
Backend systems that scale.
Games that captivate.
6+ years · IIT Kharagpur

Senior Software Engineer specializing in high-throughput distributed systems — fintech, healthtech, and data pipelines at scale.

Founder of Mirage Reality Labs and creator of Rachna AI
building indie games, web tools, and 3D assets shipped to real users worldwide.

01 / Creative Work

Built & Shipped

Founder's Product · Live Now
Rachna
AI
AI Design Workspace for Creators

Full-featured, in-browser AI design SaaS — generate professional resumes, greeting cards, websites, sprite sheets, and QR codes instantly. Free tier, zero installs.

Resume Generator
Greeting Cards
Website Editor
QR Code Maker
Sprite Sheet Tool
Free Tier
rachna-ai-studio.vercel.app
Design. Create.
Inspire.
📄
Resume
🎨
Card
🌐
Website
✂️
Sprite
Enter Studio →
Indie Studio
🎮
Mirage Reality Labs
Indie game studio — polished gameplay, stylised art, high-performance Unity experiences across PC, Mobile, WebGL & VR.
mirage-reality-labs.vercel.app
Games Page
🐙
Itch.io Page
All games, prototypes, and 3D assets — DeepVRse, Seeds of Life, and the Cartoon Octopus Unity asset.
mirage-reality-labs.itch.io
Published Games & Tools
🦸
DeepVRse
Superhero action roguelike set deep underwater — tentacle combat, lasers, VR mode, mining drones, and base building.
🌱
Seeds of Life
AI-driven planetary terraforming simulation with emergent ecosystems. Playable via WebGL in the browser.
🐙
Cartoon Octopus
Fully rigged, stylised 3D asset for Unity. Sold on the Unity Asset Store and Itch.io.
🚀
Interstellar Journey
Narrative exploration prototype from a game jam — an experiment that inspired future studio projects.
02 / Experience

Career
Timeline

Apr 2025 — Present
Mirage Reality Labs
Bengaluru, India
Founder
Unity 3DC#Electron.jsWebGLMobile
  • Built and launched Rachna AI — multi-purpose AI design SaaS for resumes, websites, cards, and creative assets in-browser.
  • End-to-end ownership: branding, game dev, marketing, and publishing pipelines.
  • Released two games on Google Play & Itch.io; published paid 3D assets on Unity Asset Store.
Oct 2023 — Apr 2025
Liftoff LLC
Bengaluru, India
Software Consultant
GolangJavaAWSKafkaPostgreSQL
  • Built a fully automated overnight loan-processing engine in Golang, handling thousands of daily records without manual intervention.
  • Mass document-generation pipeline outputting 5–10k PDFs / day via parallel Go workers.
  • Config-driven orchestration layer enabling dynamic API/workflow mapping — zero code changes required.
Sep 2022 — Aug 2023
Halodoc
Bengaluru, India
Senior Software Engineer
GolangJavaMicroservicesInsurance Tech
  • Designed a modular reimbursement claims engine with dynamic rule evaluation — cutting latency from minutes to seconds.
  • High-volume data ingestion service handling millions of partner records via CSV/API.
  • Reduced tech debt via concurrency improvements, caching, and DB tuning.
Mar 2022 — Sep 2022
SliceIt Credit
Bengaluru, India
Software Engineer
GolangJavaNode.jsKafkaFintech
  • Introduced Kafka into synchronous order-processing — increasing throughput 2–3×.
  • Built Early Repayment / Invoice Generation workflow enabling proactive payments.
May 2019 — Feb 2022
General Electric
Hyderabad, India
Software Engineering Specialist
GolangJavaAWSCassandraKafka
  • Autonomous PII/data cleanup processing ~100 GB/month (peak 752 GB) — saving compliance teams hundreds of hours.
  • Kafka ingestion + query layers: Golang ingestor for hot/cold storage, Java query app for fast analytical lookups.
  • AWS Secrets Management library standardising secure credential access across microservices.
03 / Stack

Skills
& Tools

Languages
GolangJavaNode.jsC#JavaScriptBash
AWS
S3EC2LambdaAuroraEMRKinesisSSM
Databases & Streaming
PostgreSQLApache KafkaCassandraElasticsearchHadoopSpark
Game Dev
Unity 3DWebGLVR DevelopmentBlenderPhotoshop
Frontend
HTML / CSSVue.jsAngularJSBootstrapElectron.js
Tooling
GitHubJenkinsSplunk / KibanaAppDynamics
04 / Education

Academic
Background

Indian Institute of Technology, Kharagpur
Dual Degree — B.Tech + M.Tech · Chemical Engineering
2014 — 2019
Delhi Public School, Bokaro Steel City
All India CBSE Board — Class XII · Science · 10 CGPA
2000 — 2014
05 / Contact
Let's
build
together.

Open to senior backend roles, game development collaborations, Unity consulting, and interesting product challenges.

LinkedIn Email YouTube Itch.io 🎨 Rachna AI Instagram
Rahul Kumar
Senior Software Engineer & Indie Game Developer
Golang Java AWS Distributed Systems Unity 3D Game Dev IIT Kharagpur 6+ Years
Technical Skills
Languages
GolangJavaC#Node.jsJavaScriptBash
Cloud & Infra
AWS S3EC2LambdaAuroraEMRKinesis
Data & Streaming
Apache KafkaPostgreSQLCassandraElasticsearch
Game Dev & Creative
Unity 3DWebGLVRBlenderPhotoshop
Frontend
HTML/CSSVue.jsElectron.jsAngularJS
Education
IIT Kharagpur
Dual Degree B.Tech + M.Tech · Chemical Engineering
2014 — 2019
Delhi Public School, Bokaro
CBSE Class XII · Science · 10 CGPA
2000 — 2014
Products & Games
Rachna AI — AI design SaaS (live)
DeepVRse — Roguelike on Google Play
Seeds of Life — WebGL sim
Cartoon Octopus — Unity Asset Store
SnapGrid — Web spritesheet tool
Experience
Mirage Reality LabsApr 2025 – Present
Founder
  • Launched Rachna AI — full-stack AI SaaS with resume, card, website, and QR generation.
  • Published 2 games on Google Play & Itch.io; 3D asset on Unity Asset Store.
  • Full ownership: branding, dev, marketing, and publishing pipelines.
Liftoff LLCOct 2023 – Apr 2025
Software Consultant
  • Automated overnight loan-processing engine in Golang handling thousands of daily records.
  • Document-generation pipeline outputting 5–10k PDFs/day via parallel Go workers.
  • Config-driven orchestration layer for zero-code API/workflow mapping.
HalodocSep 2022 – Aug 2023
Senior Software Engineer
  • Modular reimbursement claims engine — latency from minutes to seconds.
  • High-volume data ingestion handling millions of partner records.
  • Reduced tech debt via concurrency, caching, and DB optimisations.
SliceIt CreditMar 2022 – Sep 2022
Software Engineer
  • Introduced Kafka into order-processing — throughput increased 2–3×.
  • Early Repayment / Invoice Generation workflow reducing operational overhead.
General ElectricMay 2019 – Feb 2022
Software Engineering Specialist
  • PII cleanup system processing ~100 GB/month (peak 752 GB) — saving hundreds of compliance hours.
  • Kafka ingestion + query layers: Golang ingestor for hot/cold storage, Java app for analytics.
  • AWS Secrets Management library standardising credential access across microservices.