# Fissehaye Girmay > Lead Engineer at Thoughtworks Location: Chicago, Illinois, United States Profile: https://flows.cv/fissehaye Experienced, passionate and collaborative full stack developer with 15 years of professional experience in software development supported by strong skills in developing scalable, available and maintainable applications with Java, Rust, Golang and TDD. Strong knowledge of algorithms and data structures. ## Work Experience ### Senior Software Engineer @ Thoughtworks Jan 2022 – Present | Chicago, Illinois, United States ### Senior Software Engineer @ Creospan Inc. Jan 2019 – Jan 2022 | Chicago, Illinois, United States ### Software Engineer @ TiVo Jan 2019 – Jan 2019 | Raleigh-Durham, North Carolina Area ### JavaEE Engineer @ SciMind AB Jan 2016 – Jan 2018 ### Founder and Full Stack Developer @ Ahadu Property (Previously called MerkatoDirect) Jan 2014 – Jan 2016 ### Graduate Research Assistant @ Masdar Institute of Science & Technology Jan 2012 – Jan 2014 | Abu Dhabi Researched about the Bitcoin blockchain and identified a flaw in the network: Developed a cryptocurrency which rewards nodes in the network to share information they know about new transactions. A flaw of the Bitcoin network is that it relies on volunteer nodes to propagate transaction information across the network to ensure the proper functionality of the system. However, nodes have an incentive not to share the information about the transactions they know. By not sharing transaction information, nodes minimize the competition from other nodes to get the transaction fee which can potentially lead into tragedy of the commons. ### Enterprise Application Developer @ Apposit LLC Jan 2011 – Jan 2012 | Ethiopia Analysis, design and implementation of different enterprise level use cases of a system called Paga. Paga is a mobile payments platform to transfer money, pay-bills, and buy things digitally. Paga has millions of customers in Nigeria. ## Education ### Master's degree in Computer Science Maharishi International University Jan 2018 – Jan 2021 ### Master of Science (MS) in Computing and Information Science Masdar Institute of Science and Technology Jan 2012 – Jan 2014 ### Bachelor's degree in Electrical and Electronics Engineering Mekelle Institute of Technology Jan 2002 – Jan 2007 ## Contact & Social - LinkedIn: https://linkedin.com/in/fissehaye-girmay --- Source: https://flows.cv/fissehaye JSON Resume: https://flows.cv/fissehaye/resume.json Last updated: 2026-03-22