Arul John
Principal Software Engineer at NASA - National Aeronautics and Space Administration
Washington, District of Columbia, United States
Summary
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Senior🎓
Top SchoolArul John is a Principal Software Engineer with 11+ years of professional experience and a 25-year history of running his own utility and API site, bringing practical full-stack expertise to NASA’s software efforts. He’s fluent across Python, Java, NodeJS, Rust and shell scripting, with a strong background in Linux administration, cloud deployments (AWS), CI/CD and long-running legacy modernization projects. His career spans federal agencies, universities and large enterprises where he’s delivered automation, backend optimizations and high-test-coverage systems using tools from Rails and Sinatra to Redis and Sidekiq. Beyond core engineering, he mentors the next generation by coaching ACSL/USACO weekly alongside his daughter, and maintains ongoing SaaS and machine learning side projects that feed into his public APIs. Notably, Arul’s personal site and toolset—maintained for decades—continue to serve public utilities like MAC/IP lookup, illustrating a rare blend of production-grade engineering and long-term developer stewardship.
11 years of coding experience
18 years of employment as a software developer
Master of Science (MS) Computer Science, Master of Science (MS) Computer Science at University of Illinois SpringfieldData Science and Big Data Analytics, Data Science and Big Data Analytics at Massachusetts Institute of TechnologyKansas State UniversityB.Sc. Mathematics Physics Computer Science, B.Sc. Mathematics Physics Computer Science at Wesley Degree CollegeMCA Computer Science, MCA Computer Science at Loyola AcademyHigh School, High School at The Hyderabad Public School Ramanthapur - HPS (R)
English, Telugu, Filipino
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (25)
json10
python10
css10
json-api10
csv10
router9
api9
svg9
open-data9
rest-api8
youtube7
edx7
developer-tools7
open-source6
docker6
Programming languages (4)
Github contributions (5)
aruljohn/acsl
Nov 2020 - Oct 2025
Contributions:15 pushes, 2 branches in 4 years 11 months
aruljohn/wifi-reconnect-raspberry-pi
Oct 2017 - Nov 2019
Contributions:5 commits, 3 pushes, 1 branch in 2 years
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