John Janes

Principal Software Engineer

Homer Glen, IL · (708) 724-4996 · john@johnjanes.com

Summary

Skills

Languages & Frameworks
PHP (Symfony, Laravel), Ruby (Rails), JavaScript (Node.js, Express, React, Angular), Go, HTML/CSS

Databases & Search
MySQL, PostgreSQL, MongoDB, Elasticsearch

DevOps & Cloud
AWS, Docker, Terraform, Ansible, Jenkins, Linux Administration

Tools & Platforms
Git, ELK Stack, Snowflake, Datadog, Redis, Jira, MuleSoft

Practices
Microservices Architecture, API Development, ETL Pipelines, Agile/Scrum, Testing (RSpec, PHPUnit)

Specialized
Zuora (Billing), FFmpeg, PCI Compliance, GDPR Implementation

Experience

EventLink — Consultant / Contractor

Remote · Jan 2024 – Jun 2024

Led engineering team developing a modern Ruby on Rails application to replace a 15-year-old legacy PHP system
Leveraged deep domain expertise as original architect of the legacy platform to ensure seamless migration and data integrity
Designed system architecture for improved scalability and maintainability

U.S. LawShield — Senior Software Engineer

Webster, TX · Jan 2020 – Oct 2023

Supported operations for insurance and legal services platform serving 2M+ members
Integrated Zuora billing system as primary backend; served as technical liaison with Zuora support team
Trained and mentored offshore development teams on core systems architecture and maintenance
Led production of monthly and weekly financial reports for executive leadership
Built new features using Laravel while maintaining complex reporting infrastructure across MySQL, PHP, Java, Elasticsearch, and Zuora
Empowered business analysts through custom MySQL queries enabling data-driven decision making
Maintained multi-language legacy systems ensuring business continuity

ActiveCampaign — Senior Software Engineer

Chicago, IL · Jan 2019 – Jan 2020

Supported $240M Series C funding round and Salesforce partnership through platform stability and improvements
Owned critical campaign approval system processing 24M+ daily email campaigns for 200K+ subscribers
Achieved 1M+ emails per hour per client capacity through refactoring and optimization on a platform processing 2B+ monthly emails
Refactored legacy monolithic codebase to modern PHP standards and SOLID principles
Built internal diagnostic tools improving system observability and reducing incident response time
Contributed to microservices migration breaking down monolithic architecture
Represented Campaign team in organizational incident response efforts
Mentored junior developers and support engineers on platform architecture and troubleshooting

Yello — Senior Software Engineer

Chicago, IL · Aug 2016 – Dec 2018

Supported Series B ($5M) and Series C ($31M) funding rounds through platform improvements and stability
Maintained mission-critical legacy PHP monolith serving 50%+ of Fortune 500 client user base during multi-year Rails migration
Led GDPR compliance implementation across legacy PHP application ensuring data protection for enterprise clients
Rebuilt reporting system from the ground up while maintaining ongoing business operations
Transitioned from Campus team (PHP monolith) to Integrations team (Rails microservices)
Managed weekly releases using Jenkins and GitFlow across both legacy and modern stacks
Built and maintained integrations using MuleSoft, React, and Ruby on Rails
Mentored junior developers across multiple technology stacks and platforms

Synergy Marketing Partners — Lead Engineer

Lombard, IL · Nov 2012 – Aug 2016

Hired as first full-time engineer; grew engineering team to 7 developers supporting expansion to 40+ employees
Established technical policies, development processes, and system architecture from the ground up
Built high-traffic CMS platform using Symfony/Silex for enterprise clients including MLB.com and Chevrolet.com
Developed 720 Digital Ad Creator using Rails, Node.js, Express, PhantomJS, and Angular for regional and national automotive advertising
Processed 200K+ monthly unique leads and sweepstakes entries across multiple platforms
Served as technical point of contact for General Motors, Nissan, BMW, and Toyota
Led PCI compliance efforts ensuring payment security across all client platforms
Managed system administration including Ubuntu servers, Apache, NGINX, MySQL, and SSL certificate management

Discount Mags — Senior Software Engineer

Downers Grove, IL · Nov 2011 – Dec 2012

Built affiliate marketing platform from the ground up for large-scale e-commerce operations
Integrated payment providers including PayPal and Authorize.net

Dealer E Process — Senior Software Engineer

Downers Grove, IL · Nov 2010 – Nov 2011

Led migration from Subversion to Git improving team collaboration and deployment processes
Mentored junior developers on version control and coding best practices
Built custom page builder, form builder, and rebate system using CodeIgniter

Digital One Internet Services — Senior Software Engineer

Orland Park, IL · Mar 2008 – Aug 2009

Built pay-per-view streaming system integrating with Authorize.net and PayPal
Developed cross-platform mobile video platform supporting Android, Blackberry, and iPhone
Created Youth Sports PPV platform streaming Tennessee and Iowa state football championship playoffs
Overhauled video encoding pipeline improving quality and processing speed
Migrated systems to Symfony framework

Earlier Experience

VB Holding — Senior Software Engineer · Aurora, IL · Jan 2010 – Aug 2010
Ateki Corporation — Lead Web Application Developer · Bolingbrook, IL · May 2007 – Feb 2008
Creative Expansion — Lead Web Application Developer · Remote · 2001 – 2006

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