Senior PHP Software Engineer

Trissential; Milwaukee (WI); Remote; USD 90,000 - 130,000; Full time

Job summary

Trissential is hiring a Senior PHP Software Engineer to join our client’s team. This role focuses on enterprise integrations, eCommerce and ERP connections, building scalable applications and APIs in a fully remote setting.

You will work across the full stack with PHP, Symfony, Oracle PL/SQL, JavaScript, HTML and CSS; mentor juniors, participate in Agile ceremonies, and drive reliable, high-performance software across deployments and production support.

Responsibilities

• Design, develop, and maintain integrations between eCommerce platforms, ERP systems, and internal applications
• Build and support RESTful APIs and enterprise data exchange processes
• Manage data synchronization, transformation, validation, and interoperability across multiple systems
• Lead complex integration initiatives involving OroCommerce, IFS ERP, and third-party platforms
• Serve as a technical expert for integration architecture and API development
• Troubleshoot and resolve complex integration design and implementation challenges
• Promote reliable, scalable, and maintainable integration practices across the organization
• Support, enhance, and customize OroCommerce applications using PHP and Symfony
• Contribute across both front-end and back-end development initiatives
• Develop enterprise applications using PHP, Oracle PL/SQL, JavaScript, HTML, and CSS
• Ensure applications meet performance, security, scalability, and maintainability standards
• Conduct code reviews and provide technical feedback to improve software quality
• Coach and mentor junior and mid-level developers
• Champion software engineering best practices and coding standards
• Monitor, troubleshoot, and maintain enterprise applications and integrations
• Perform root cause analysis and implement long-term solutions
• Support deployments and ensure successful release management activities
• Lead investigation and resolution of complex production incidents
• Improve monitoring, performance optimization, and operational processes
• Participate throughout the SDLC including development, testing, deployment, and support
• Partner with business stakeholders, IT teams, and external vendors to deliver successful solutions
• Participate in Agile ceremonies including sprint planning, reviews, and backlog refinement
• Create and maintain technical documentation for integrations, applications, and

Skills

PHP

Symfony

REST APIs

Agile

Mentoring

Code reviews

Tools

OroCommerce

IFS ERP

Oracle PL/SQL

JavaScript

HTML/CSS

Job description

Location: Fully Remote (Milwaukee, WI)
Employment Type: Contract-to-Hire

Are you a senior-level software engineer who enjoys solving complex integration challenges while building scalable enterprise applications? Trissential is hiring a Senior PHP Software Engineer to join our client's team. This is an opportunity to work on high-impact eCommerce and ERP integrations, contribute across the full application stack, and play a key role in driving enterprise technology solutions that directly support business growth.

What's in It for You?

• Work on mission-critical enterprise integrations connecting eCommerce, ERP, and internal business systems
• Leverage modern integration technologies including Boomi, REST APIs, and enterprise middleware solutions
• Make a measurable impact by improving application performance, reliability, and scalability
• Collaborate with technical leaders, business stakeholders, and vendors on innovative enterprise solutions
• Mentor and support fellow engineers while expanding your own leadership capabilities
• Enjoy a fully remote work environment while contributing to large-scale technology initiatives
• Participate in Agile development teams focused on continuous improvement and innovation

Your Role & Responsibilities

Enterprise Integrations & APIs

• Design, develop, and maintain integrations between eCommerce platforms, ERP systems, and internal applications
• Build and support RESTful APIs and enterprise data exchange processes
• Manage data synchronization, transformation, validation, and interoperability across multiple systems
• Lead complex integration initiatives involving OroCommerce, IFS ERP, and third-party platforms
• Serve as a technical expert for integration architecture and API development
• Troubleshoot and resolve complex integration design and implementation challenges
• Promote reliable, scalable, and maintainable integration practices across the organization

Application Development

• Support, enhance, and customize OroCommerce applications using PHP and Symfony
• Contribute across both front-end and back-end development initiatives
• Develop enterprise applications using PHP, Oracle PL/SQL, JavaScript, HTML, and CSS
• Ensure applications meet performance, security, scalability, and maintainability standards
• Conduct code reviews and provide technical feedback to improve software quality
• Coach and mentor junior and mid-level developers
• Champion software engineering best practices and coding standards

Production Support & Reliability

• Monitor, troubleshoot, and maintain enterprise applications and integrations
• Perform root cause analysis and implement long-term solutions
• Support deployments and ensure successful release management activities
• Lead investigation and resolution of complex production incidents
• Improve monitoring, performance optimization, and operational processes
• Participate throughout the SDLC including development, testing, deployment, and support

Collaboration & Delivery

• Partner with business stakeholders, IT teams, and external vendors to deliver successful solutions
• Participate in Agile ceremonies including sprint planning, reviews, and backlog refinement
• Create and maintain technical documentation for integrations, applications, and