# Henry Peebles-Capin > Software Engineer at WeaveGrid Location: Brookline, Massachusetts, United States Profile: https://flows.cv/henrypeeblescapin ## Work Experience ### Software Engineer @ WeaveGrid Jan 2025 – Present ### Software Engineer @ Band Jan 2023 – Jan 2025 As one of four full-stack engineers at Band, a platform for buying groups, suppliers, distributors, and a variety of other group purchasing organizations, I helped to build and scale a multi-tenant B2B web application with thousands of users. The platform was built on a Django backend and a React frontend, with a partitioned Postgres database supporting tenant-specific isolation. I played a key role in both backend and frontend development, working across the product, as well as the evolution of our tech stack and design system. - Led the project to migrate the frontend from Django templates to a modern React architecture, using Tailwind CSS for styling. - Designed and implemented UI components based on designs in Figma, and maintained a scalable design system used throughout the application. - Built and maintained core features and pages across the application, using external packages like react-hook-form, zod, Radix UI, Highcharts, and a variety of other libraries. - Wrote APIs for features across the app. Used complex queries and optimized data access patterns, often working with materialized views and advanced SQL logic. Worked with Django Ninja to create APIs with complex validation. - Used Celery to manage execution of asynchronous tasks. - Collaborated closely with product and design teams, and interfaced with customer success to translate customer needs into technical specs. - Took point on several key customer accounts, guiding the technical side of the onboarding process. - Worked extensively with AWS for deployment and monitoring, including Elastic Container Service, s3, and a variety of other tools. Monitored site issues in real time using Sentry. - Interacted with third-party softwares like OneSchema for spreadsheet upload, Postmark for automated email delivery, and Lingui for i18n and translation. - Used Sigma Computing to help build and maintain custom dashboards and visualizations for customers, and integrate these into our own application. ### Software Engineer @ The Vendry Jan 2021 – Jan 2023 | New York, United States As one of four full-stack engineers at The Vendry, a platform to connect event planners with venues and vendors, I developed new features for the product and helped the company scale significantly. Using technologies such as Typescript, React, Next.js, Express, MySQL, and Docker, I worked on all parts of the product, planning and executing the implementation of new features and helping to scale the site with an increase in users of more than 40% in a period of 20 months, reaching more than 5,000 daily users. • Built new pages and components for the web app using React and Next.js. Implemented designs from the UI/UX team using Figma and Zeplin. • Built models and operations in Typescript to implement new features. Used the Express framework for Node.js, and built jobs running asynchronously on cron scheduling. • Built complex queries and migrations for a MySQL database in Typescript using Knex. • Supervised and mentored an in-person summer intern. Conducted his code reviews and held weekly meetings to discuss his goals and track his progress. Led his large-scale summer project by working with the product team to define the scope of the project, and wrote the tech spec. • Closely attended to problems with the site and addressed them in a timely manner. Used Sentry, Mezmo, and other software integrated into Slack for monitoring. • Built classes for accessing a wide variety of external APIs. • Worked in close collaboration with other teams at the company including the product, design, and marketing teams, and reported to the CEO and other non-technical stakeholders. • Took point on several major feature launches including the ability to make updates to published requests, a responsive map feature allowing users to add neighborhood preferences to searches by clicking, and assigning accolades to businesses and displaying them on their profiles. ### Co Executive Producer, Podcast Team @ Brown Political Review Jan 2020 – Jan 2021 | Providence, Rhode Island ### Managing Editor, Editorial Board @ Brown Political Review Jan 2020 – Jan 2021 | Providence, Rhode Island ### Associate Editor, Editorial Board @ Brown Political Review Jan 2019 – Jan 2020 | Providence, Rhode Island Area ### Script Writer, Podcast Team @ Brown Political Review Jan 2019 – Jan 2020 | Providence, Rhode Island Area ### Software Engineer Intern @ Cambridge Semantics Inc. Jan 2020 – Jan 2020 | Boston, Massachusetts, United States Wrote object-oriented code in Java for new features on the company’s product as well as unit test and end-to-end test classes using JUnit. Created RDF ontologies and used Jastor to generate Java interfaces and classes. ### Field Operations Intern @ Cambridge Semantics Inc. Jan 2019 – Jan 2019 | Boston, MA Contributed to the field operations team by scripting in Python, writing SPARQL queries and TRIG files, and working with the Anzo API to build complex ontologies and datasets. ### Teacher's Assistant @ The Calculus Project Jan 2018 – Jan 2018 | Brookline, Massachusetts ### Teacher's Assistant @ The Calculus Project Jan 2017 – Jan 2017 | Brookline, Massachusetts The Calculus Project is a summer program run by Brookline High School aimed at closing the achievement gap in mathematics specifically designed to increase the number of African American and Latino students who enroll in higher-level high school math courses. As a teacher's assistant, I worked with the section's teacher to coordinate the students' curriculum, and provided individual support to the students in the program. ### Research Assistant @ Pollak Lab at Beth Israel Deaconess Medical Center Jan 2016 – Jan 2016 | Boston, Massachusetts Under Dr. Martin Pollak, the lab’s objective is to study the effects of various genes on the onset of Kidney Disease. I worked closely with several of the lab’s researchers, specifically researching the effects of the proteins APOL1, ACTN4, and INF2 on the kidneys. ## Education ### Brown University ### Brown University ### Bachelor of Arts - BA in Computer Science Brown University ## Contact & Social - LinkedIn: https://linkedin.com/in/henry-peebles-capin-a9a1a4157 --- Source: https://flows.cv/henrypeeblescapin JSON Resume: https://flows.cv/henrypeeblescapin/resume.json Last updated: 2026-03-28