# Tyler Bream > Lead Engineer at Klaviyo Location: Cambridge, Massachusetts, United States Profile: https://flows.cv/tylerbream Software Engineer interested in building, innovating and managing software infrastructure, back-end development, and full-stack engineering. ## Work Experience ### Senior Software Engineer @ Klaviyo Jan 2022 – Present | Boston, Massachusetts, United States ### Senior Software Engineer Technical Lead @ GreatHorn Jan 2018 – Jan 2021 | Waltham, Massachusetts While at GreatHorn, I helped contribute to many main features, stabilization efforts, performance improvements and cost reduction. During my tenure, I was able to help increase the performance of the system 200X from 200 messages per second to 40,000 messages per second. I contributed directly to these goals in the following ways: * Identified bottlenecks in analysis performance and implemented new systems to replace * Found main slowdown in daily analysis and replace system with a pre-accumulation system resulting in the complete reduction of slowdowns when migrated * Replaced email scanning schedule system that decrease times between scans by 3X+ and reliability by 9X * Implemented caching layers where services took too long * Replaced legacy scanning system * Helped replace legacy trend analysis platform * Found architectural inefficiency causing slow dashboard performance * Moved from SOLR to Elastic-Search Additionally, I help decrease the burn rate of the product by aiding in the cost reduction effort decreasing the cost of the system nearly in half. I contributed directly to this effort in the following areas: * Reduced storage space of system in half while preserving the content * Identified cost points that could be reduced In addition to overall product improvements, I was responsible for designing, architecting, implementing, overseeing and planning these features: * Pre-Analysis * Link Protection * KnowBe4/Cofense Integration * Next Gen API Design * Advanced Threat Detection Model Outside of direct product contributions, I also contributed in the following ways: * Code review most changes released to production * Subject Matter Expert in many core features and components * Technical documentation of the product including Principal of Operations used to onboard new hires * Mentorship of team members * Customer Issues including calls with customers * Lead team of fellow engineers ### Senior Software Engineer @ GreatHorn Jan 2018 – Jan 2018 | Greater Boston Area ### Software Engineer @ Jump Trading LLC Jan 2014 – Jan 2018 | Chicago While at Jump Trading, I was responsible for maintaining core C++ applications, contributing to the ever growing tech stack, and innovating new technologies. My responsibilities included: * Building, managing and maintaining core C++ applications including: ** Cloud configuration and inter-application messaging system ** Real-time monitoring server and stop switch ** Symbology resolution system ** Applications interfacing directly with third-parties * Architected, developed and maintained and managed a C++ and python pipeline for promoting, verifying, and resolving symbology: ** Full stack engineering in Flask and Django, including team's first web application ** Designed and wrote library for servers and HPC processes * Wrote Python libraries wrapping C++ code or re-implementing C++ wire protocols * Created detailed and effective documentation and logging standards * Low level C networking applications * HPC library to reduce archive footprint * Designed C++ application framework for Interns * Working and mentoring summer, fall and spring Interns on various projects * Contributed to main library with market feeds, risk solutions, and other various projects ### Intern @ CAMECA Jan 2012 – Jan 2013 | Fitchburg, Wisconsin Speed up LEAP (Local Electrode Atom Probe) data processing by 2.5X ## Education ### Computer Engineering in Computer Science, Mathematics, Computer Science University of Wisconsin - Madison ## Contact & Social - LinkedIn: https://linkedin.com/in/tyler-bream --- Source: https://flows.cv/tylerbream JSON Resume: https://flows.cv/tylerbream/resume.json Last updated: 2026-03-31