Ranald Yun Shao Lam

Singaporean software engineer and former competitive programmer. Represented Singapore at the International Olympiad in Informatics three years running - Bronze (2012), Silver (2013) and Gold (2014, rank 24/311) - one of the country's strongest informatics students of his cohort. Graduated from NUS with a Bachelor of Computing (Honours) focused on Algorithms, Networks and Database Systems, and won first place at the 2017 ACM-ICPC regional with team 'Pandamiao'. Currently an Operations Trade Support (OTS) Software Engineer at Jump Trading in Singapore, developing algorithmic trading strategies in C++ and researching exchange microstructures. Has stayed embedded in the Singapore informatics community as an IOI Team Coach (2017), ITC member (2021) and task author for IOI 2020 Singapore.

Signal

No active public social posting surface found: he has no verified X/Twitter account and his LinkedIn shows a steady long-tenure engineering career (Jump Trading since 2020) with no public content feed. His public footprint is on code and community platforms (GitHub, personal site, IOI/NOI pages) rather than social media, so no posting frequency or themes can be characterised.

Notes10

• Works as Operations Trade Support (OTS) Software Engineer at Jump Trading LLC in Singapore since 2020, developing algorithmic trading strategies in C++ and researching exchange microstructures - the IOI-gold profile channelled into quantitative trading.2020
• Won a Gold medal (rank 24/311) for Singapore at IOI 2014, after Silver (rank 48/299) at IOI 2013 and Bronze (rank 91/310) at IOI 2012 - a clear upward trajectory across three consecutive IOI appearances that made him one of Singapore's strongest informatics students of his cohort.2014
• Returned to IOI as a member of Singapore's International Technical Committee (ITC) in 2021, and as Team Coach in 2017 - moved from competitor to organiser, a signal he stayed embedded in the competitive programming community after leaving school.2021
• Authored a task for IOI 2020 (hosted by Singapore), credited as 'Ranald Lam Yun Shao and Ling Yan Hao' - his problem-setting continued at the highest level of the olympiad he once competed in.2020
• Maintains 'noiref', a competitive programming reference library for Raffles Institution / Singapore IOI teams, and his personal site codecla.ws ('CodeClass') hosts competitive programming material - sustained giving back to the SG olympiad pipeline.2021
• Graduated from NUS with a Bachelor of Computing (Honours) focused on Algorithms, Network and Database Systems; taught as an undergraduate TA for CS1020/CS2040/CS2040C (10 iterations), CS2102, and CS3233, earning Honour List for Student Tutors in AY2017-18.2019
• Served on the National Olympiad in Informatics (NOI) Scientific Committee, authoring problems for the 18th-20th NOI (2015-2017) - NOI contributes 50% of Singapore's IOI selection, so he shaped the pipeline that selects the national team.2015
• Was a competitive programming trainer for Raffles Institution's NOI teams (2012-2014) and for invited schools at NUS; during his term all 10 RI team members medalled and the 2014 team set a school record of 6 golds and 4 silvers - he coached the generation that followed his own IOI run.2014
• Published email [contact omitted] openly on his GitHub project as the contact for his competitive programming reference - a public, self-published contact.2021
• Built mrJudge, an online judge at dunjudge.me, and provided the Singapore NOI platform - shows he builds the tooling (judges, references) that the community runs on, not just competes.2018
• Won first place at the 2017 ACM-ICPC regional with team 'Pandamiao' (Gan Wei Liang, Nguyen Tien Trung Kien) as a first-year NUS student - proof his olympiad form carried into university-level competitive programming.2017
• Competed in IPSC 2014 finishing 7th overall (rank 17 individually) representing Singapore - evidence his ability extended to international team programming contests beyond IOI.2014