# Roenz Aberin > Principal Software Engineer at Dante Consulting Location: Emeryville, California, United States Profile: https://flows.cv/roenz My name is Roenz, and I am a software engineer with over 3 years of experience in designing and deploying APIs, SDKs, and web applications for early-stage startups in the e-commerce and marketing sectors. I have a certification in full-stack web development from Lambda School, and I am proficient in TypeScript, AWS Serverless, and Cypress E2E testing. Previously, I worked as a software engineer at Extend, where I developed strategies to tailor offers to specific customer segments, increasing conversion rates by 20%. I also optimized the SDK for faster website loading and seamless checkout, resulting in a 90% increase in speed and a positive user experience. Additionally, I implemented observability improvements and testing suites, ensuring efficient performance and reducing log costs by 30%. Before Extend, I was a full-stack web developer at electrIQ marketing, where I collaborated with team members to create responsive and SEO-friendly web applications for various clients. Prior to my career transition into software engineering, I spent four years as an analytical chemist, conducting research on cancer therapeutics for biotechnology companies. During this time, I developed my ability to problem-solve, communicate, manage time, and maintain professionalism in high-stress situations. I am passionate about applying these skills to web technologies and creating engaging and easy-to-use software for the masses in a team environment. I am currently looking for new opportunities to leverage my software engineering skills and experience in a challenging and rewarding role. I am eager to learn new technologies and frameworks, and to collaborate with other talented engineers and innovators. If you are interested in connecting with me, please feel free to reach out. Thank you for reading my summary. ## Work Experience ### Principal Software Engineer @ Dante Consulting, Inc. Jan 2023 – Present ### Software Engineer II @ Extend Jan 2021 – Jan 2023 | San Francisco Bay Area • Designed and deployed APIs that handle 10s of millions of requests daily, delivering responses in <150ms, thus ensuring optimal user experience. • Developed strategies to effectively tailor offers to specific customer segments, maximizing conversion rates by 20%. • Implemented observability improvements for a high-traffic endpoint, ensuring efficient performance and minimizing log costs by 30%. • Enhanced the merchant and customer purchase experience by optimizing the SDK, resulting in a 90% increase in speed. This improvement led to faster website loading and a seamless checkout process. • Spearheaded the implementation of Cypress E2E testing suite across multiple services, resulting in a 75% increase in developer productivity. • Demonstrated expertise in building features with >90% unit and end-to-end test coverage, leading to accelerated feature releases and improved product quality. • Led code and service migrations within a microservice architecture, streamlining and optimizing system structure and performance. • Successfully led the entire development process, including architecture, design, quality assurance, and deployment, for multiple features. • Developed strategies to effectively tailor offers to specific customer segments, further improving conversion rates by 20%. ### Software Engineer I @ Extend Jan 2020 – Jan 2021 | San Francisco Bay Area • Designed and developed an API and SDK for seamless integration of the Extend platform with BigCommerce, resulting in over 100 live merchants and a significant increase in potential revenue. • Enhanced order conversion rates by 15% by integrating warranty products for Shopify merchants into the Extend platform. • Developed comprehensive product and architecture documentation to facilitate future feature development and ensure seamless collaboration among team members. • Utilized TypeScript and AWS Serverless architecture to optimize developer experience and establish resilient APIs for our services. ### Full-Stack Web Developer @ electrIQ marketing Jan 2019 – Jan 2020 • Collaborated with team members to create full-stack web applications • Increased traffic and enhanced page ranking by improving website structure, design, and SEO • Fixed problems with existing projects to improve responsiveness across all platforms • Consult with client to determine optimal strategy for project with budget and time constraints ### Team Lead @ Lambda School Jan 2020 – Jan 2020 • Deliver one-on-one feedback and code review on a weekly basis • Lead a team of 8 to develop an event planning app that meets stakeholder specifications • Conduct meetings with the team and stakeholders to discuss project status and deliverables • Coordinate daily stand-up meetings to facilitate sharing of ideas and work progress ### Full-Stack Developer @ Miracle Messages Jan 2019 – Jan 2020 | San Francisco, California, United States • Developed a responsive web application to simplify Miracle Message's volunteer onboarding and member/chapter organization • Implemented and automated features to stakeholder specifications, on a remote cross-functional team of 7 • Contributed to the development and design of the backend REST API following TDD practices • Refactored current codebase to improve app performance and user experience ### Senior Research Associate @ IDEAYA Biosciences Jan 2019 – Jan 2019 | San Francisco Bay Area • Conduct small molecule pre-formulation research to create safe and efficacious solutions for in-vivo testing • Established pre-formulation lab in one week and integrated into company's analytical work-flow to improve drug characterization • Maintained drug formulation supply for critical Phase 1/2 clinical trials of our lead drug candidate • Characterize lead compounds to identify and improve drug absorption • Perform experiments to support the creation of more improved drug compounds o Utilize LC-MS to determine compound solubility and dissolution ### Research Associate (Contract) @ IDEAYA Biosciences Jan 2018 – Jan 2019 | San Francisco Bay Area ### Research Associate I (Contract) @ Amunix Jan 2018 – Jan 2018 | Mountain View, CA • Spearheaded the completion of an external collaboration regarding drug conjugate synthesis o Synthesized five XTEN drug conjugates containing drug moieties o Performed small scale scouting procedures to determine protein synthesis viability and yield optimization o Executed in-house analytics and purification (SDS-PAGE, ESI-MS, Endotoxin, Thiol Reactivity Test, RP-HPLC, Preparative HPLC, UF/DF) • In parallel, worked on internal research projects to improve downstream processes • Presented research data in internal meetings ### QC Analyst (Contract) @ BioMarin Pharmaceutical Inc. Jan 2017 – Jan 2018 | Novato, CA • Performed analytical and microbiological testing of all stages of drug production o Completed 20 bioburden tests with low margin of error due to short expiry (<2 Hours) o Utilized HPLC and Bradford to test over 15 samples daily • Consistently maintained 100% compliance of known assay and routine SOP’s with a team-wide compliance of 90% • Utilized LIMS to receive and accession over 30 samples daily • Maintenance of the laboratory to ensure maximum efficiency for analysts • Reagent prepped, inventory check, ordered supplies, and removal of expired reagents and materials ### Clinical Lab Technician @ PerkinElmer, Inc. Jan 2017 – Jan 2017 | Richmond, California • Prepared and processed new born samples for genetic screening of ALD (Adrenoleukadystrophy) o Performed testing of over 3800 samples a day o Utilized LC-MSMS for the quantification of known analytes that potentially causes ALD • Performed maintenance, reagent prep, and set-up of UPLC and Mass Spec machinery • Completed year-long backlog two months ahead of deadline • Consistently surpassed the monthly quota by 15% ### Membership Advisor @ In-Shape Health Clubs Jan 2016 – Jan 2016 | American Canyon, CA • Met quota two months in a row for the first time in years by negotiating pricing and fees • Numerically and visually saw member results through creation of catered fitness plans ### Intern @ Northern California Gastroenterology Consultants Jan 2013 – Jan 2013 | Oakland, CA • Assisted histotechnologist in data input of over 50 specimen results a day • Prepared and maintained all laboratory reagents, stains, and solutions • Ordered, distributed and stocked supplies as needed ## Education ### Full Stack Web Development BloomTech ### Bachelor’s Degree in Human Biology UC San Diego ### Human Biology University of California, Santa Cruz ## Contact & Social - LinkedIn: https://linkedin.com/in/raberin - GitHub: https://github.com/raberin - Portfolio: https://www.raberin.me --- Source: https://flows.cv/roenz JSON Resume: https://flows.cv/roenz/resume.json Last updated: 2026-03-29