Aranya Dutta
Backend engineer · Distributed systems

I build backend systems that hold up when things break.

Go, gRPC and event-driven architecture, with the idempotency and crash-safety work that makes those words mean something in production.

View workRésumé ↓
Based in
Bhubaneswar, Odisha
Studying
B.Tech CSE, KIIT '27 · CGPA 8.14
Japanese
JLPT N5, preparing for N3
Available
2027 new-grad roles · freelance now
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Latest

Oct 2026

I took part in HackerRank's Orchestrate in October 2026, building and deploying an AI agent. I finished 51st out of 4,090.

Orchestrate

This certificate of achievement is awarded to

Aranya Dutta

for participating in the October 2026 edition of HackerRank's Orchestrate by building and deploying an AI agent.

Final rank#51/ 4,090Verified by HackerRank
View my result on HackerRank
Orchestrate
October edition
Aranya
Dutta
I am attending
Participant

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Selected work

03
01

Flamingo Chat

2026
  • 8 Go microservices on gRPC. Kafka and Redis pub/sub power live WebSocket messages.
  • Deployed on GKE with Helm behind a Cloudflare Tunnel, monitored with Prometheus, Grafana and Loki.
  • Load tested with k6 on one e2-standard-2 node (2 vCPU, 8 GB) in asia-south1, Mumbai.
  • p95 delivery 61 ms at 25 users, 181 to 299 ms at 200. Node CPU saturated at 275 to 300 users.
Go / gRPC / Kafka / PostgreSQL / Redis / GKE / Helm / Prometheus / Grafana / k6
Live ↗Code ↗Write-up →
25 users, p95 delivery
61 ms
200 users, p95 delivery
181 to 299 ms
One node saturates at
275 to 300 users
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adbreak

Top 10 finalist, hoichoi Hackathon '262026
  • Built solo in 12 hours. A Go backend that places ad breaks in Bengali drama only at speech-free points.
  • Safety rules are enforced in code, not by the AI model. It rejected 109 mid-dialogue cuts across 6 episodes.
  • Deployed on Google Cloud Run with CI in GitHub Actions (40 tests). All 6 episodes cost about $1 to analyse.
Go / Gemini / Whisper / FFmpeg / Cloud Run
Live ↗Demo ↗Code ↗Write-up →
Mid-dialogue cuts rejected
109
Episodes analysed
6
Cost for all six
about $1
03

Momotaro

2026
  • Payment recovery agent as 9 Go microservices on Kafka and gRPC. Beat naive retries by 26% on 44% less spend.
  • Exactly-once payment actions under at-least-once delivery, using Postgres idempotency keys.
  • Fixed a Kafka offset-commit race with a single committer goroutine, verified 20/20 under concurrency.
Go / gRPC / Kafka / PostgreSQL / Redis / Kubernetes
Code ↗Write-up →
Better than naive retries
26%
Spend compared to retries
44% less
Offset-commit race fix, runs passed
20 of 20
Kafka · partitioned backbone · DLQ · exactly-once
Ingest
DLQ
Kafka · 12 partitions
Recovery engine
Ledger writer
Audit stream
Postgres
Redis
gRPC
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Code, in the open

GitHub ↗

My GitHub profile, on the desk. The pinned repositories are the projects above, and the activity at the bottom includes my open source work on Kubernetes and Jaeger.

github.com/thisizaro

Pinned

1,302 contributions in the last year

Happy Halloween!

Contribution activity

October 2026

Snapshot of github.com/thisizaro from 31 Oct 2026. Open the live profile ↗

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Skills and recognition

Languages
Go · Python · Java · C · C++
Technologies
gRPC · REST APIs · Docker · Kubernetes · PostgreSQL · Kafka · Redis · Prometheus · Grafana · OpenTelemetry
Concepts
Microservices · Distributed systems · Event-driven architecture · Observability · CI/CD · Load testing
Education
Kalinga Institute of Industrial Technology (KIIT), B.Tech in Computer Science and Engineering, 2023 to 2027. CGPA 8.14 / 10.00.
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Writing

All posts →
2026.06.20Moving My Development Setup to WSL2 and Setting Up Git the Right Way2026.06.16WSL2: The Linux Setup I Had All Along2026.05.16Notes About Concepts in Go2026.05.10Flamingo Chat: Backend Documentation
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About

Aranya Dutta

I'm a final-year CS student at KIIT. Most of what I enjoy sits below the UI: message buses, failure modes, and the unglamorous work of making a system behave correctly when a machine dies mid-batch.

I'm also studying Japanese, aiming to work in Japan. JLPT N5 passed in December 2025, preparing for N3.

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Services

Need something built, fixed, or deployed?

Freelance backend work, deployment help, and fast sites for local businesses.

01

Business websites

Fast, accessible sites built to load quickly and rank on search.

02

Deployment & DevOps

Docker, CI/CD pipelines, Kubernetes, and getting things live cleanly.

03

Backend & APIs

Go and Python services, REST and gRPC, database design, integrations.

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