Justin Justin
@justinrob772
Full Stack Software Engineer with 12+ years of experience building backend services, customer-facing platforms, and internal tools across CRM, payment
United StatesWhat I'm looking for
I’m a Full Stack Software Engineer with 12+ years of experience building backend services, customer-facing platforms, and internal tools across CRM, payments, marketing automation, and recruiting technology. I’m comfortable working end-to-end, from API design and integrations to React/Next.js interface improvements and production support.
In my current role, I built backend services for Salesforce CRM product workflows using Java and Ruby, supporting account, customer, and internal administration features. I also delivered React and Next.js tooling improvements that reduced repeated support lookups by roughly 20%, and strengthened regression coverage for customer lifecycle workflows to reduce escaped defects.
Earlier, at Block, I led work to replace an aging sandbox environment for payment and risk teams and migrated refund behavior to a synchronous architecture for clearer refund outcomes. I used Kafka to cache accounting updates and reduce redundant API calls by roughly 35%, and I created a fraud-prevention check to detect credit card numbers in free-text fields.
Before that, at Pardot and CareerBuilder, I delivered licensing and provisioning architecture, implemented asynchronous RSA JWT authentication between Salesforce and Pardot, and helped shape Salesforce integration through safer, iterative platform migrations. I’ve consistently mentored junior engineers and emphasized practical engineering decisions that prioritize product behavior, customer impact, and maintainable systems.
Experience
Work history, roles, and key accomplishments
Built backend services for Salesforce CRM product workflows using Java and Ruby, supporting account, customer, and internal administration features. Delivered React/Next.js UI improvements and improved API behavior for customer records, entitlement checks, and integration status while strengthening regression coverage for customer lifecycle workflows.
Software Engineer – Block
Block
Feb 2021 - Apr 2024 (3 years 2 months)
Replaced an aging sandbox environment to give payment and risk teams a more reliable place to test seller flows. Migrated refund behavior to synchronous architecture, used Kafka to cache accounting updates and reduce redundant traffic, and implemented fraud-prevention checks while mentoring junior engineers and building an internal Slack bot for stock and PR lookups.
Software Engineer - Pardot
Pardot
Nov 2015 - Jan 2021 (5 years 2 months)
Delivered Pardot licensing and provisioning architecture to enable customers to activate marketing automation features with less manual setup. Implemented self-service account creation with asynchronous RSA JWT authentication between Salesforce and Pardot, supported data transfer workflows for reporting, and led SOX review preparation and technical documentation.
Software Engineer II - CareerBuilder
CareerBuilder
Dec 2012 - Oct 2015 (2 years 10 months)
Implemented a reverse-routing framework enabling multiple web applications to run behind a single domain for a smoother job-search and employer-platform experience. Built and maintained a Ruby on Rails application for managing AWS and GitHub settings, supported Rails environments in AWS OpsWorks, contributed to migrating a major mobile web application to Rails, and managed PostgreSQL and MySQL acr
Education
Degrees, certifications, and relevant coursework
Georgia Institute of Technology
Bachelor's Degree in Computer Science, Computer Science
2008 - 2012
Earned a Bachelor's Degree in Computer Science from Georgia Institute of Technology from 2008 to 2012.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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