Senior PHP Software Engineer

Overview
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 workflows

Assist with project estimation, technical analysis, and architecture discussions

Share technical knowledge through mentoring, reviews, and collaborative problem-solving

Drive continuous improvement initiatives across development and support teams

Skills & Experience You Should Possess

8+ years of software engineering experience with both front-end and back-end development

Strong expertise in PHP development, ideally within Symfony-based environments

Experience developing and supporting REST APIs and enterprise integrations

Experience working with integration platforms such as Boomi, MuleSoft, Workato, or similar technologies

Advanced Oracle SQL and PL/SQL development experience

Experience supporting production systems and resolving complex application issues

Strong understanding of JSON, OAuth, system interoperability, and integration patterns

Proficiency with JavaScript, HTML, and CSS

Experience working within Agile software development environments

Excellent troubleshooting, analytical, and problem-solving abilities

Strong communication and collaboration skills

Demonstrated technical leadership and mentoring experience

Bonus Points If You Have

Hands-on experience with OroCommerce development and customization

Experience integrating with IFS ERP environments

Expertise designing enterprise-scale Boomi integrations

Experience with CI/CD pipelines and DevOps practices

Background supporting eCommerce technology ecosystems

Experience leading integration modernization initiatives

Education & Certifications You Need

Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related technical field

Relevant integration, cloud, or software engineering certifications are a plus

What We Offer
At Trissential, we believe exceptional professionals deserve meaningful work, strong support, and opportunities to continue growing. By joining our client's team, you'll collaborate with talented professionals while working on enterprise-scale technology initiatives

Competitive Compensation – $68–$73 per hour. Final compensation is determined based on skill alignment, years of experience, and fair, market-based rates by geography

Comprehensive Benefits for you and your dependents – Extensive Medical Plans, Dental, Vision, HSA with company contribution, company sponsored Life Insurance and Short / Long term disability insurance, a host of voluntary plans including legal, hospital, accident, pet wellness, and 401k with matching

Paid Holidays and Paid Time Off

Career Development and Advancement – Expleo is a global company in 29 Countries worldwide with a high focus on development

Strong Team Culture – Collaborate with experienced professionals who value precision, performance, and teamwork

Please note: This role is open only to candidates who are authorized to work in the United States
Ready to be part of something exciting?
If you're passionate about enterprise integrations, modern application development, and solving complex technical challenges, we want to hear from you. Join Trissential and help shape the future of enterprise technology solutions while advancing your career as a Senior PHP Software Engineer
Originally posted on Himalayas