Sebastian Martinez on What Competitive Programming Teaches You That Regular Work Can't

Most coding challenges at work come with deadlines measured in days or weeks. In competitive programming, you get minutes — and your score depends not just on whether your solution is correct, but on how fast you wrote it.

Sebastian Martinez knows both sides of that equation. A ServiceNow Technical Consultant at X-Team, Martinez also coaches a competitive programming team, a role he has held since 2017 when the Dean of the Computer Science program at his university invited him to become a professor of Algorithms and Data Structures. The offer gave him direct access to the best talent from his classes, and he began channeling that talent into competitive programming contests during extracurricular time.

In this story, Martinez explains what competitive programming actually is, how coaching it shaped his approach to production software and which resources he points students to when they want to get started.

A Sport Built Around Algorithms and Speed

Competitive programming puts a developer's problem-solving skills to a direct test. Participants are given a series of algorithmic challenges and must write computer programs that solve them under strict time limits. Accuracy matters — but so does speed. A solution that works slowly scores lower than one that works fast.

The themes range widely: graph theory, string algorithms, dynamic programming and more. Competitions are organized by universities, coding clubs and companies, and can be held online or in person. The International Collegiate Programming Contest (ICPC), Google's Code Jam and Meta's Hacker Cup are among the best-established events in the field.

For Martinez, the appeal goes beyond the technical challenge. "Competitive programming is a really friendly and empowering environment," he says. "Its teams are always willing to learn, improve, and get better every day." He describes two overlapping benefits: the friendships formed with people who share the same interests and the rivals who push you to improve. "It's a hobby I really recommend," he says. "You'll become a better developer technically, but mentally too. You learn to find joy in solving difficult challenges."

What Coaching Taught Him About Developer Growth

As a coach, Martinez focuses on building the foundational skills that separate strong competitive programmers from struggling ones: data structures, algorithms and deliberate problem-solving strategy. His recommended improvement methods are straightforward — coding exercises, theoretical reading and building small relevant programs. Speed matters too; the ability to translate a correct mental model into working code quickly is a skill in itself.

Beyond individual technique, Martinez emphasizes collaborative learning. Students do better when they exchange approaches and problem-solving techniques with each other rather than working in isolation. Part of his coaching philosophy involves teaching students to recognize patterns inside complex challenges and break large problems into manageable subtasks — skills that transfer directly to software development at work.

Regular competition participation is the accelerant. "As a coach, I try to encourage that as much as I can," he says. Mistakes, he tells his students, are not failures — they are the mechanism of improvement. "It's not necessarily about winning the competition. It's about gathering new knowledge so they become better developers."

The Skills That Transfer to Production Work

The lessons Martinez drew from competitive programming didn't stay in the classroom. Efficiency — writing code that performs well in both time and space — is as central to production software as it is to a timed contest. The same habits of mind that help a programmer score well in a competition help them build faster, more reliable applications for real users.

The problem-solving framework transfers most directly: deconstructing a complex issue into its constituent parts, identifying patterns and designing efficient algorithms. "The ability to deconstruct multifaceted issues into their constituent parts, discern patterns, and create efficient algorithms are valuable skills to engage with any real-world application," Martinez says.

He also points to qualities that go beyond technique. Competitive programming builds consistency, perseverance and commitment under pressure — traits that matter as much in a long engineering project as they do in a timed contest.

For developers who want to build those skills, Martinez recommends a short list of online platforms: Codeforces, CodeChef, AtCoder, LeetCode and HackerRank. All five offer diverse problem sets, regular competitions, editorial solutions and video tutorials. On the book side, he reaches most often for Competitive Programming 3 by Steven and Felix Halim — "the tips and tricks in it helped me solve most of the well-known challenges" — alongside Programming Challenges by Steven Skiena and Miguel Revilla and Introduction to Algorithms by Thomas H. Cormen.

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