Tim Dumol
Senior Backend Engineer at Constructor
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolTim Dumol is a Senior Backend Engineer with 16 years of experience building reliable, high-performance web and data systems, currently based in Madrid. He combines a mathematics background and competitive programming pedigree with hands-on SRE, data engineering, and full-stack development to productionize AI/LLM features and scale AWS- and Kubernetes-native services. Tim has repeatedly improved availability and cost-efficiency—rewriting critical Python services in Rust to handle ~1k large requests/sec, cutting CDC costs by 90%, and halving cloud bills through targeted optimizations. He mentors engineers in SRE and safe AI adoption, co-founded the Philippines’ National Informatics Olympiad, and contributes algorithmic implementations in Rust on open-source projects. Practical, metrics-driven, and security-minded, he focuses on solutions that deliver measurable business impact rather than vanity metrics.
16 years of coding experience
15 years of employment as a software developer
Bachelor of Science - BS Mathematics, Bachelor of Science - BS Mathematics at University of the Philippines Diliman
English, Filipino, Spanish
Stackoverflow
584reputation
47kreached
4answers
6questions
Github Skills (17)
algorithm10
algorithms10
rosetta-code10
data-structure10
data-structures10
rust10
mergesort9
bitmaps8
bitmap8
computational-geometry6
coreos6
cherrypy6
sqlalchemy6
operator-overloading6
decorator6
Programming languages (11)
Github contributions (5)
rust-rosetta/rust-rosetta
Aug 2014 - Oct 2017
Implementing Rosetta Code problems in Rust.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits, 2 PRs in 3 years 2 months
Contributions summary:Tim contributed to the implementation of various algorithms and data structures in Rust, aligning with the Rosetta Code problem set. Key contributions included the implementation of linear congruential generators, a merge sort algorithm, and a K-d tree for nearest neighbor search. The user also implemented a specific function for reading a line from a file, as well as implementing and writing to a PPM image file. These implementations demonstrate a focus on algorithmic problem-solving and low-level systems programming.
rustproblemsrosetta-coderosettarust-lang
TimDumol/rust-otp
Sep 2014 - Apr 2021
A Rust library for performing the HMAC-based One-Time Password (HOTP) and Time-based One-Time Password (TOTP) algorithms.
Contributions:15 commits, 1 PR, 4 pushes in 6 years 7 months
one-time-passwordcryptographyrust-libraryhotprust
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