# Tegshee (Tess) Baasan > Senior Software Engineer at Reactor Data with expertise in Full-Stack Development Location: San Francisco Bay Area, United States Profile: https://flows.cv/tegshee I am a senior software engineer experienced in the following technologies Front end: TypeScript, Javascript, React, Material UI, HTML, CSS, jQuery, Babel, Webpack Back end: Python, Scala, Node.js, Firestore, PostgreSQL, MySQL, GraphQL MongoDB Deployment and Testing: GCP, Kubernetes, ArgoCD, Docker, Terraform, BigQuery, Firebase, Snowflake ## Work Experience ### Senior Software Engineer @ Reactor Data Jan 2024 – Present | San Francisco Bay Area ### Software Engineer @ Reactor Data Jan 2022 – Jan 2024 | San Francisco Bay Area ### Frontend Software Engineer @ Reactor Data Jan 2021 – Jan 2022 | San Francisco Bay Area ### Board Member @ Nasha Tech Jan 2022 – Present ### Founder and Host @ Unlock Podcast Jan 2016 – Present #1 podcast in Mongolia with over 5.5Mil plays. Ranked as a top 200 podcast in the Education category on iTunes. - Written, developed, and hosted more than 110 episodes covering modern non-fiction literature. - The most played and highest-rated podcast in Mongolia according to iTunes. ### Software Engineer @ Breathe Mongolia - Clean Air Coalition Jan 2020 – Jan 2021 | San Francisco Bay Area Developing a knowledge-sharing platform with Typescript, Javascript, React, and GraphQL by collaborating with the design and product team in a remote environment ### Software Engineering Intern @ ZOLA Electric Jan 2020 – Jan 2020 | San Francisco Bay Area - Developed automated firmware testing environment in Python to increase the efficiency of complex integrated firmware tests which take more than 48 hours. - Analyzed legacy firmware codebase, written in C/C++, in order to produce a dependency matrix to help electrical engineers to improve understanding of the firmware’s system design. - Testing firmware with python-based automated test scripts. - Developing in-house data visualization tool with Python, React and Node.js ### Computer Science Teaching Assistant @ City College of San Francisco Jan 2020 – Jan 2020 | San Francisco, California, United States - Assisted 38 students and reviewed weekly assignments in Advanced Python class, covering list comprehension, generators, decorators, profiling, concurrency, etc. ### Investment Project Manager @ Mitsui & Co., Ltd. Jan 2017 – Jan 2017 | Tokyo, Japan Iron Ore mine, Joint Venture, Australia - Managed a project which earned one-third of Mitsu & Co., Ltd's global profit in FY 2017. - Implemented and monitored the Joint Venture's project, such as an autonomous haulage system, expansion, and mine development studies, resource enhancement projects, all related financial reporting. - Developed and managed Mitsui's iron ore commodity price hedging model and executed it. Reported directly to the C-level management team. ### Metals Trader @ Mitsui & Co., Ltd. Jan 2015 – Jan 2016 | New York, New York, United States - Negotiated and concluded non-ferrous primary metals and scrap deals. Grew business from zero prior experience to a net margin of 200k USD in the first 6 months. -Developed a new financial model of non-ferrous metals and scrap trading within North America. ### Associate @ Mitsui & Co., Ltd. Jan 2012 – Jan 2015 | Tokyo, Japan 2 copper concentrate blending projects, China and South Korea - Managed projects in China and South Korea with the world's biggest copper producers/smelters and the largest traders in Peru and Mexico. - Managed and supervised internal procedures with financial, legal, IT, risk management and business administrative teams. - Planned and executed the core commercial documents. Initiated the price and credit risk management system of trading flow. Structured the annual business plan. Created and executed the entire new financial model for the projects. Caserones copper mine, Chile - Prepared quarterly financial reports, individual and consolidated, and monitored and scrutinized the construction progress of the development stage of the first fully Japanese owned copper mine in Chile. - Monitored and alerted upper management of further possible cost increases by scrutinizing around 800 contracts with subcontractors and their current construction status. Copper exploration project, Australia - Led a unique, complex exploration project in Australia, representing Japanese investors in a joint venture, with members of a multinational background, such as geologists from Australia and non-geological managers of Japanese partners. - Represented Mitsui by participating in Management Committees in Australia, evaluated the project's annual exploration program and proposed the exploration budget and plan. Copper Concentrate Trading Successfully concluded copper concentrate deals for annual revenue 60k DMT (USD 120 mil), earning a net margin of 1.6-1.8mm USD within the first year. ### Intern @ Bank of America Merrill Lynch Jan 2010 – Jan 2010 ## Education ### Artificial Intelligence Stanford Continuing Studies Jan 2025 ### Advanced Software Engineering Immersive in Computer Software Engineering Hack Reactor ### Masters of Economics in Macroeconomics, Economic Growth, Economics of Natural Resources Hitotsubashi University ### Bachelor of Economics in Economics Kobe University ### Japanese Language The University of Osaka ### Economics National University of Mongolia ## Contact & Social - LinkedIn: https://linkedin.com/in/tegshee --- Source: https://flows.cv/tegshee JSON Resume: https://flows.cv/tegshee/resume.json Last updated: 2026-03-22