Summary
Overview
Work History
Education
Skills
Timeline
Generic

Jake Seo

Fairfax,VA

Summary

Thorough team contributor with strong organizational capabilities. Experienced in handling numerous projects at once while ensuring accuracy. Effective at prioritizing tasks and meeting deadlines.

Overview

9
9
years of professional experience

Work History

Senior Backend Engineer

Sellfire
06.2024 - 04.2026
  • Owned design and implementation of bi-directional data synchronization systems between Sellfire and external platforms (Salesforce, HubSpot)
  • Built event-driven pipelines (webhooks + batch processing) to ensure reliable, scalable cross-system data consistency
  • Developed fault-tolerant background job systems (queues, retries, backoff) for high-volume integration workflows
  • Led migration of audio storage from Twilio-hosted URLs to AWS S3, reducing costs by 93.3% and improving scalability and data control
  • Architected a serverless webhook pipeline using AWS Lambda that handled 10k+ concurrent requests, shielding core infrastructure from inbound spikes and maintaining 99.9% system uptime.

Senior Backend Engineer

Rapptr Labs
01.2021 - 06.2024
  • Designed and deployed scalable cloud-based applications across AWS, Heroku, and GCP
  • Led migration of legacy systems to microservices architecture, improving deployment efficiency.
  • Developed high-performance REST and GraphQL APIs, reducing data fetch times by 90% on search and improving overall system performance and scalability
  • Mentored engineers and promoted best practices in performance, security, and API design

Backend Engineer

Rapptr Labs
11.2019 - 12.2021
  • Built backend services using Node.js and GraphQL across e-commerce, social, and wellness platforms
  • Developed scalable microservices architecture, ensuring efficient resource utilization and system reliability.

Data Analyst

LG Electronics
12.2016 - 06.2018
  • Processed US-bound shipments using HTS codes, maintaining 99.3% accuracy in trade compliance data

Education

Full-Stack Web Bootcamp - undefined

App Academy
NY
01-2018

Economics & Statistics - undefined

University of Maryland
College Park, MD
01-2016

Skills

  • Nodejs
  • Express
  • TypeScript
  • PostgreSQL / Aurora
  • MySQL
  • MongoDB
  • Redis
  • Docker

Timeline

Senior Backend Engineer

Sellfire
06.2024 - 04.2026

Senior Backend Engineer

Rapptr Labs
01.2021 - 06.2024

Backend Engineer

Rapptr Labs
11.2019 - 12.2021

Data Analyst

LG Electronics
12.2016 - 06.2018

Full-Stack Web Bootcamp - undefined

App Academy

Economics & Statistics - undefined

University of Maryland
Jake Seo