# Marcus Christiansen > Senior Software Engineer at Klaviyo Location: Boston, Massachusetts, United States Profile: https://flows.cv/marcuschristiansen I am a detail-oriented and ardent software engineer who loves learning new languages and frameworks, building intuitive and scalable software, and getting things to work. I have industry experience building websites and implementing cloud architectures in AWS. I specialize in Ruby on Rails and Python, and have experience in Javascript, React, and Java. Get in touch at mefchristiansen@gmail.com, or check out my website at https://mefchristiansen.github.io/ ## Work Experience ### Senior Software Engineer @ Klaviyo Jan 2022 – Present ### Software Engineer @ Klaviyo Jan 2020 – Jan 2022 ### Co-founder | Lead Developer @ Considdr Inc. Jan 2018 – Jan 2020 | Greater Boston Area • Lead full-stack development of an AI-powered search engine at a market intelligence startup • Recognized as a MassChallenge 2019 Finalist and as one of Built In Boston’s 50 Startups to Watch in 2020 • Architected and developed all core features of the platform from prototype to enterprise solution, leading to rapid customer growth • Integrated Elasticsearch with company IP to build underlying search algorithm • Implemented automatic content generation pipeline using AWS Lambda, S3, and TensorFlow that has generated over 3 million insights • Automated data pipeline to identify and group similar insights with a trained machine-learning model using Neo4j, Docker and ECS • Interviewed, trained and mentored four programming interns over two summers • Co-author of company patent U​S20180365324A1​ filed Aug 22, 2018 ### Web Developer @ Considdr Inc. Jan 2017 – Jan 2018 | Greater Boston Area ### Computer Science Teacher Assistant @ Bowdoin College Jan 2017 – Jan 2017 • Held weekly study sessions to help students with programming assignments and problem sets for CSCI 2101 (Data Structures). • Provided professors with feedback about students' understanding of material • Gave feedback to professors regarding lab assignments and exams ### Computer Science Grader @ Bowdoin College Jan 2016 – Jan 2017 • Graded lab assignments for CSCI 2101 (Data Structures). • Communicated with and gave feedback to students as to how to improve their assignments. • Provided professor with feedback regarding assignments as well as the students’ understanding of the material. ### Summer Research Fellow @ Bowdoin College Jan 2016 – Jan 2016 | Brunswick, ME • Was awarded the Surdna Foundation Undergraduate Research Fellowship for research in robotics together with the RoboCup team for 8 weeks during the summer of 2016. • Programmed new behaviors for robots including search behaviors as well as head movements and tracking (Python). • Traveled and competed in the 2016 RoboCup SPL and finished in the top 12 of 24 teams. ### Summer Research Fellow @ Bowdoin College Jan 2015 – Jan 2015 | Brunswick, ME • Was awarded the Breckinridge Summer Fellowship for research in computer science • Worked together with professor to model microfinance networks, modeling the relationship between loan-giving institutions and loan-seeking clients. The aim of this research was to maximize the utility both sides gain from their relationship. • Determined objective functions for both sides of the relationship, and proved several qualities of both functions. • Used Python to compile data. • Currently using Python optimization techniques to calculate equilibrium points in model. ### Marketing Intern @ Novartis Jan 2014 – Jan 2014 • Key contact person for the production of POSM and detailing aid materials; debriefed design firms as to what was expected and maintained contact to ensure the completion of a successful product • Attended and participated in strategic planning meeting to boost product sales and contend with competitors • Translated documents from Chinese to English, used by marketing department during presentations • All interaction during internship in Mandarin Chinese, including both written and spoken Chinese ### Operations Intern @ Vericant Jan 2014 – Jan 2014 | Beijing, China • Directly involved in the revamping of all interview materials, composing several new interview questions, writing sample questions and picture sets for Chinese students of boarding school, undergraduate and graduate level education, as well as revising existing interview materials. • Used existing interview videos to create a set of interview clips with commentaries, to identify the various types of students that an interviewer may encounter, as well as the various types of interviewers, which may be conducting the interview. These videos and descriptions are to be used in the future for interview training. • Assisted manager in the completion of clerical work, such as the identification of exposed questions, as well as the categorization and sorting of interview materials. • Created and implemented activities in order to promote the then-current quarterly theme ### Project Manager @ Jiashan-Jingxi Partnership Jan 2010 – Jan 2013 | Beijing, China • Executive member and Board Member of a partnership between my high school, the Western Academy of Beijing, and a local school in Gansu province, the JiaShan Primary School. where after the Chinese school collapsed following the 2008 Sichuan Earthquake, this partnership rebuilt the school and provided both schooling and sports equipment to the school • Organized semi-annual trips to the local Chinese school • Organized and led tutoring and sporting activities for the Chinese school students • Led and mentored younger members of the partnership to organize their own activities, and assisted them whenever any difficulties arose • Communicated with all members of the partnership in order to keep track of other member's progress, and to ensure the completion of the activities prior to trips ## Education ### Bachelor of Arts (BA) in Computer Science (Major), Mathematics (Minor) Bowdoin College Jan 2013 – Jan 2017 ### International Baccalaureate Western Academy of Beijing Jan 2007 – Jan 2013 ## Contact & Social - LinkedIn: https://linkedin.com/in/mefchristiansen - Website: https://mefchristiansen.github.io/ - GitHub: https://github.com/mefchristiansen --- Source: https://flows.cv/marcuschristiansen JSON Resume: https://flows.cv/marcuschristiansen/resume.json Last updated: 2026-03-22