ABOUT

Backend engineer, competitive programmer.

Security data platforms by day, complete systems in Go, Python, and Java on my own time.

The interesting part of a system is usually the part nobody sees until it fails: the queue that has to survive a crash, or the check that has to be right every time.

I'm a backend engineer at MiniOrange in Pune, where I work on security data platforms: a fingerprint-based DLP engine for endpoints, a SIEM log-forwarding service, cloud data discovery connectors, and a bulk-export pipeline that processes over ten million events per run.

I came to backend work through competitive programming at M.B.M University, Jodhpur. I qualified for the ICPC Asia Regional in 2023, reached Specialist on Codeforces across 37 rated contests, and have solved more than 1,200 problems across Codeforces, LeetCode, and CodeChef.

Outside work I build complete systems on my own to learn new stacks properly: an email DLP gateway in Go, a multi-tenant tutoring platform, an AI career assistant in Python, and a Java microservices platform.

PROFILE

Current role: SDE at MiniOrange
Based in: Pune, India
Primary stack: Java · Go · PostgreSQL
Open to: Remote & relocation

06Operating philosophy

How I approach engineering work.

Acknowledge only what is durable.

SecurePlus returns an SMTP 250 only after the message is in the stream, and TutorPilot writes its events in the same transaction as the data. A success response should mean the work cannot be lost.

Assume the worker will crash.

Every queue consumer I build can reclaim stalled messages, resume half-finished jobs on restart, and park poison messages somewhere they can be replayed.

Make isolation structural.

Tenant boundaries belong in keys and schemas, like a JWT secret per organisation, rather than in a filter someone might forget to add to a query.

Test the failure paths too.

The happy path is the easy part. My tests also cover rollbacks, reused tokens, oversized files, and hostile regex patterns.

05Education & achievements

Competitive programming and credentials.

Education

2021 — 2025
B.E. Computer Science
M.B.M University, Jodhpur
CGPA 8.01 / 10 · Data structures and algorithms, operating systems, database engineering, distributed systems

Achievements

ICPC Asia Regionalist 2023
Qualified for and competed at the ICPC Asia Regional round.
Codeforces Specialist
Reached Specialist across 37 rated contests.
1,200+ problems solved
Across Codeforces, LeetCode, and CodeChef.

Competitive programming

04Career & competencies

Experience and technical stack.

Experience

JUL 2025 — PRESENT
Software Development Engineer
MiniOrange · Pune, India
Building security data platforms: endpoint data loss prevention, SIEM log forwarding, cloud data discovery, and multi-tenant export pipelines.
- Developed a SIEM log-forwarding microservice over HTTP/TCP with JSON and Syslog output, built on an LMAX Disruptor lock-free pipeline that sustained over 2,000 events per second with zero message loss and enforced per-vendor rate limits.
- Architected a distributed bulk-export pipeline in Java, Spring Batch, AWS S3, Redis, and RabbitMQ processing over 10 million security events per run, with per-tenant Redis token-bucket rate limiting, processing-time quotas, and RabbitMQ priority queuing to ensure fair scheduling across 100+ tenants and eliminate noisy-neighbour starvation.
- Designed a content-based DLP engine supporting 100+ tenants with 100+ devices each, using CDC chunking with MinHash/LSH for sublinear similarity search and triggering fingerprint matching only once policy criteria are met, eliminating redundant computation; signatures synchronise from MongoDB to on-device SQLite for fully offline violation detection.
- Delivered cloud data discovery end to end — connector architecture, ingestion, and processing pipelines for AWS S3, Azure Blob Storage, Google Drive, and SharePoint.
MAY 2024 — JUL 2024
Node.js Backend Intern
Celebal Technologies
Built REST APIs with Node.js and Express.js on top of both relational and document databases.
- Implemented routing, middleware, and request validation across a set of REST endpoints.
- Worked against both relational and document data stores within the same service.

Technical stack

Languages: JavaGoPythonC++TypeScriptSQL
Backend & frameworks: Spring BootSpring BatchGinDjangoNode.jsREST
Storage & messaging: PostgreSQLMongoDBRedis StreamsRabbitMQpgvectorSQLite
Infrastructure & frontend: AWS S3DockerGitHub ActionsLinuxNext.jsReact

Hiring for backend or platform work?

I'm looking for backend engineering roles in distributed systems, high-throughput pipelines, or security infrastructure, remote or with relocation. I'm also happy to talk about any of the projects here.

Direct email

rahul0singh003@gmail.com

Start a conversation

I reply personally, usually within 24 hours.

Good to know

Currently a full-time SDE at MiniOrange in Pune.
Open to remote roles and to relocation.
Comfortable in both Java/Spring and Go codebases.