Preston Wallace
I'm Preston Wallace, a startup-tested engineer passionate about building scalable SaaS and AI systems that streamline complex, real-world workflows. I currently work as a Senior Full Stack Software Engineer at MNTN, where I lead teams building AI-powered applications using React, TypeScript, Node.js, and GraphQL. I specialize in micro frontends, event-driven systems, and architecting solutions that deliver measurable business impact - like cutting campaign build times by 90% and increasing revenue by 40%. I leverage modern AI tools like Cursor Background Agents to automate workflows and double developer efficiency.
- Name Preston Wallace
- Phone (805) 286-0588
- e-mail wallace.preston@gmail.com
What I do
Full-Stack Development
I build scalable applications with React, TypeScript, Next.js, and tRPC on the frontend, creating micro frontends that scale with your business needs.
AI-Powered Systems
I architect event-driven systems using Node.js, GraphQL, SQS, and Kafka, integrating AI tools to automate workflows and boost efficiency by up to 90%.
Cloud Architecture
I deploy and manage applications on AWS and GCP using Docker, Kubernetes, and CI/CD pipelines for scalable, reliable infrastructure.
Team Leadership
I lead engineering teams, mentor developers, and drive projects that deliver measurable business impact - from 40% revenue increases to 50% reduction in merge conflicts.
Experience
Senior Full-Stack Software Engineer (TypeScript/React)
MNTN | Feb 2023 - Present- AdDNA (AI): Led 10-person team to build web scraping app (RAG), cutting campaign build time 90% and reducing churn 15%.
- Deliverability (AI): Built predictive budget-spend system, increasing revenue by 40% and decreasing support tickets by 25%.
- Designed and owned CI/CD pipeline (PR envs, Development, QA, Prod), reducing test-build-deploy time by 40%.
- Broke Campaign Service into micro frontends, integrating with Clerk for auth. Reduced merge conflicts by approx 50%.
- Leveraged Cursor Background Agents to automate PR creation, doubling developer efficiency.Back End Software Engineer (Node/GraphQL/SQS/Kafka)
MNTN | Jul 2021 - Jan 2023- Built event-driven sync (SQS, Kafka), cutting idle compute costs and saving ~$40K/mo via on-demand scaling.
- Bootstrapped flighted budgets feature, boosting seasonal ad revenue up to 30%.
- Architected Node + GraphQL APIs, improving response times by up to 90%.Lead SWE Instructor / Curriculum Writer
Multiverse, Fullstack Academy | 2019 - 2023- Wrote & delivered 12-week SWE bootcamp (Google, Verizon, Barclays), generating $10M+ revenue, achieving +70 NPS.
- Led up to 6 instructors, managed 10-cohort curriculum, and delivered 550+ hours content of live code demo on Web Dev.Software Engineer (Node/Vue/REST)
Liquidity Services | Apr 2019 - Jul 2021- Built warehouse management system, reducing sort time by 20% and saving $2M annually in software costs.
- Automated inventory data-collection tool, improving lookup efficiency by ~85%.
- Raised API test coverage from 0% to 70%, strengthening reliability.
- Integrated with external systems like Stripe, eliminating sensitive data storage in company databases.Network Admin, Assistant Manager, Web Dev
K.Jons Diamonds & Gems | until 2018- Designed and managed major version of company e-commerce site, with 1000+ items, and total inventory value of $800K.
- Increased traffic to site by 100%, and landed site first-position worldwide in Google SERP listings for keywords.
Education
Coursera
Jun 2025 - PresentCourses on AI, Data Science, Architecture, and Micro Frontends
LinkedIn Learning
Jun 2022 - 2024Courses on TypeScript, Authentication, Deployment, Agile Development.
AWS
Sep 2022Learning AWS Cloud Practitioner Essentials, Overview of AWS Cloud, AWS Cloud concepts, AWS services, security, architecture, pricing, and support.
Cisco
Jul 2022Dove deep into Cyber Best Practices, Cybersecurity, Network Vulnerabilities, Privacy And Data Confidentiality, and Threat Detection
Binsec Academy
Sep 2020Performed a comprehensive secure coding review of an ExpressJS server running on NodeJS. Dove into the depths of the most common security risks for web applications (OWASP Top 10). This course included identifying and fixing multiple vulnerabilities in the web application's source code.
Fullstack Academy
2018-2019Leveled-up my Javascript skills, diving deep into Node, Express, React, and PostgreSQL. Computer Science topics included data structures, closure, prototypal inheritance, and recursion. Fullstack Academy is a top-ranked school with campuses in New York City, Chicago, and remote campuses.
GIA (Gemological Institute of America)
2004 - 2011Developed in-depth, hands-on experience with Diamond Grading and the 4Cs (color, clarity, cut and carat weight). Used the GIA Colored Stone Grading System to evaluate gemstone quality. Successfully identified colored gemstones at random, including simulants and treatments. Learned how quality, rarity and color affect value. Determined how market factors affect gem value.
Cuesta College
2002 - 2008Associate of Arts (A.A.), General Studies, 3.83 GPA w/ High Honors