Neeraj Kumar

Backend Engineer | Python · FastAPI · Celery · Distributed Systems

Backend Engineer (SDE-I) at Datachecks. I build FastAPI services and Celery workers for data migration validation, work across database connector integrations, and handle deployment reliability.

Contact

neerajkr1210@gmail.com +91 8825384544 github.com/Ryuk-me linkedin.com/in/neeraj-kumar-5178281b0

Patna, Bihar, India

2+ years in backend engineering34 merged PRs in dcs-core10M+ rows per validation workload10+ enterprise DB targets

Current role

Software Development Engineer I (SDE-I)

Datachecks (PLOUTOS AI TECHNOLOGIES PRIVATE LIMITED)

Jun 2024 – Present

Built and maintained FastAPI APIs plus Celery/RabbitMQ worker pipelines for validation workloads over 10M+ rows.
Added and stabilized connectors for MSSQL, MySQL, Oracle, Databricks, Sybase IQ/ASE, Presto, and Trino (10+ enterprise targets).

Full ATS resume

Experience timeline

Previous roles

Software Development Engineer Intern

Datachecks (PLOUTOS AI TECHNOLOGIES PRIVATE LIMITED)

Dec 2023 – May 2024

Built three backend WhatsApp workflows for Croma users: Request Demo Installation, Demo Status, and My Account.
Integrated NeuCoins and account update paths with upstream services to improve request tracking consistency.

Backend Developer Intern

9AI

Oct 2023 – Nov 2023

Developed WebSocket endpoints and Redis Pub/Sub paths for low-latency backend messaging.
Authored MongoDB aggregation queries for analytics and internal reporting endpoints.

Project snapshots

Ryuk-me/Torrent-Api-py

FastAPI · Python · Web Scraping · 400+ GitHub Stars

Built a multi-site torrent search API across 16 providers with normalized responses, versioned routes, and optional API key auth (401 stars, 246 forks).

Ryuk-me/UMS-Api

FastAPI · Python · API Design · Reverse Engineering

Reverse-engineered a session-based university portal into FastAPI endpoints for student and placement workflows (17+ GitHub stars).

datachecks/dcs-core

Python · SQLAlchemy · Open Source Data Quality

Contributed 34 merged PRs and 59 commits to Datachecks' open-source data quality engine, including Oracle/DB2/Sybase integrations and metadata fixes.

Education

Master of Computer Applications (MCA)

Lovely Professional University · Phagwara, Punjab

Aug 2022 – Jun 2024 · CGPA: 8.30

Bachelor of Computer Applications (BCA)

Lalit Narayan Mishra Institute of ED and SC · Patna, Bihar

Aug 2019 – Jul 2022 · CGPA: 8.21

Neeraj Kumar

Backend Engineer | Python · FastAPI · Celery · Distributed Systems

Patna, Bihar, India · neerajkr1210@gmail.com · +91 8825384544 · github.com/Ryuk-me · linkedin.com/in/neeraj-kumar-5178281b0

Backend Engineer (SDE-I) at Datachecks. I build FastAPI services and Celery workers for data migration validation, work across database connector integrations, and handle deployment reliability. Focus areas: API development, distributed worker systems, and performance tuning for 10M+ row workloads, including offline RHEL deployments in air-gapped environments.

Skills

Languages

Python, TypeScript, SQL, C++

Backend & APIs

FastAPI, Celery, REST APIs, WebSocket, SQLAlchemy, aiohttp, Redis Pub/Sub

Data & Databases

PostgreSQL, MySQL, MSSQL, Oracle, MongoDB, Redis, Sybase IQ, Sybase ASE, Databricks, Presto, Trino

Infrastructure & Reliability

Docker, RabbitMQ, Kubernetes, Helm, RHEL, Pytest, GitHub Actions, Distributed Systems, Performance Tuning

Experience

Software Development Engineer I (SDE-I)

Datachecks (PLOUTOS AI TECHNOLOGIES PRIVATE LIMITED)

Remote · India

Jun 2024 – Present

Built and maintained FastAPI APIs plus Celery/RabbitMQ worker pipelines for validation workloads over 10M+ rows.
Added and stabilized connectors for MSSQL, MySQL, Oracle, Databricks, Sybase IQ/ASE, Presto, and Trino (10+ enterprise targets).
Reduced data comparison time by nearly 50% by switching from hash-based diffing to in-memory diffing, and added per-column thresholds to improve throughput.
Improved long-running Celery task reliability by tuning retry, timeout, and worker behavior.
Delivered full offline deployment on air-gapped RHEL banking infrastructure with zero internet dependency.

Software Development Engineer Intern

Datachecks (PLOUTOS AI TECHNOLOGIES PRIVATE LIMITED)

Remote · India

Dec 2023 – May 2024

Built three backend WhatsApp workflows for Croma users: Request Demo Installation, Demo Status, and My Account.
Integrated NeuCoins and account update paths with upstream services to improve request tracking consistency.

Backend Developer Intern

9AI

Remote · India

Oct 2023 – Nov 2023

Developed WebSocket endpoints and Redis Pub/Sub paths for low-latency backend messaging.
Authored MongoDB aggregation queries for analytics and internal reporting endpoints.

Projects

Ryuk-me/Torrent-Api-py

FastAPI · Python · Web Scraping · 400+ GitHub Stars

Built a multi-site torrent search API across 16 providers with normalized responses, versioned routes, and optional API key auth (401 stars, 246 forks).

Ryuk-me/UMS-Api

FastAPI · Python · API Design · Reverse Engineering

Reverse-engineered a session-based university portal into FastAPI endpoints for student and placement workflows (17+ GitHub stars).

datachecks/dcs-core

Python · SQLAlchemy · Open Source Data Quality

Contributed 34 merged PRs and 59 commits to Datachecks' open-source data quality engine, including Oracle/DB2/Sybase integrations and metadata fixes.

Education

Master of Computer Applications (MCA)

Lovely Professional University · Phagwara, Punjab

Aug 2022 – Jun 2024 · CGPA: 8.30

Bachelor of Computer Applications (BCA)

Lalit Narayan Mishra Institute of ED and SC · Patna, Bihar

Aug 2019 – Jul 2022 · CGPA: 8.21