# Marcelo Gandelman Costa > Full-Stack Software Engineer Location: San Francisco, California, United States Profile: https://flows.cv/marcelo Determined, highly motivated and focused individual, always keeping an open mind to new ideas and always learning fast! Highly skilled full-stack software engineer. Demonstrated ability in creating and optimizing high impact applications and services. Strong collaborator with proven ability to drive alignment and integration between product, engineering, and design. Exhibited strong initiative to drive improvements and own engineering solutions end-to-end. ## Work Experience ### Senior Software Engineer @ TruckSmarter Jan 2023 – Present | San Francisco, CA Development of user-facing full-stack features across Fuel, Banking, Credit and AI Dispatch. Build mobile app frontends, APIs, servers and databases within a TypeScript, React Native, Node.js, PostgreSQL stack. Drive architectural reviews ensuring system robustness, extensibility, scalability, and security. Implemented end-to-end testing on staging and established bug-bash processes for issue prioritization and resolution ahead of releases. Partner with design, product, legal, and leadership to define roadmaps for upcoming quarters and establish a plan for successful execution. Work closely with designers, ops and product to implement, test and deliver features. ### Software Engineer @ Twitter Jan 2021 – Jan 2023 | San Francisco, California, United States Developed full-stack shopping and catalog management solutions for major brands and SMBs using React, GraphQL, Scala, and Google Cloud. Partnered with product and design to deliver scalable, high-quality user experiences. Built large-scale catalog ingestion system supporting 500K+ products (increased limit 50x, decreased ingestion time 80%). Designed reusable product source components, improving engineering efficiency and React code health. Co-led development of filter-based product sets for dynamic ads, building APIs, models, and data stores. Contributed to Twitter–Shopify integration, scaling merchant base from ~20 to 5,000+. ### Software Engineer @ Twitter Jan 2020 – Jan 2020 | San Francisco, California, United States Full-stack development for the MoPub team at Twitter. Developed a brand-new tool end-to-end in a 10-week internship. Created web-app UI in React, using a proprietary components library. Developed REST API and models in Django. Testing with Jest and Django testing framework. Maintains thousands of packages with tens of thousands of units per package. Developed data pipeline from PostgreSQL database to Hadoop Distributed File System and Manhattan key-value database (massive scale). Cron-scheduled jobs in Python and Scala, interacted with one of the biggest Druid clusters in the world. Reduced 1 month-long, manual process to an automated process that takes a couple of seconds. Allowed for the creation, edit and overview of inventory. Allowed for cleaner analytical data to be obtained from user interactions with inventory. Learned GIT source control and code review standards for a large, prominent tech company. Developed industry-standard knowledge of workflow concepts, such as how to effectively utilize development, staging and production environments. ### Junior Developer @ Bits of Good Jan 2020 – Jan 2020 | Atlanta ### Bootcamper @ Bits of Good Jan 2019 – Jan 2019 | Atlanta, GA Student organization at GT that develops powerful web applications for non-profits. ### Teaching Assistant @ College of Computing at Georgia Tech Jan 2019 – Jan 2019 | Atlanta • Lecturing class of 75 students twice a week, creating class material (homeworks, quizzes, exams, coding projects,autograders, lecture guides), and manually grading homeworks and exams. • Assisting 250 students in the development and implementation of projects in C, Assembly and CircuitSim in a Linux (Ubuntu) environment, as well as maintaining a collaborative lab space for students to work on problems together. • Teaching fundamentals of C programming and efficient memory allocation, data structures in C, Assembly programming and circuit design. ### Technology and Operations Intern @ Banco Itaú Jan 2018 – Jan 2018 | São Paulo Area, Brazil • Streamlined format of Service Level Agreement for international clients, creating an easily modifiable template (VBA). • Focused on 20+ international clients (mainly American banks), who operate on the Brazilian market daily. ## Education ### Bachelor of Science - BS in Computer Science Georgia Institute of Technology Jan 2017 – Jan 2021 ## Contact & Social - LinkedIn: https://linkedin.com/in/marcelo-gcosta --- Source: https://flows.cv/marcelo JSON Resume: https://flows.cv/marcelo/resume.json Last updated: 2026-03-20