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Senior PHP Software Engineer

TrissentialDenver, COL6 LeadSeptember 26th, 2026
Senior Php Software EngineerAre 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 systemsLeverage modern integration technologies including Boomi, REST APIs, and enterprise middleware solutionsMake a measurable impact by improving application performance, reliability, and scalabilityCollaborate with technical leaders, business stakeholders, and vendors on innovative enterprise solutionsMentor and support fellow engineers while expanding your own leadership capabilitiesEnjoy a fully remote work environment while contributing to large-scale technology initiativesParticipate in Agile development teams focused on continuous improvement and innovationYour Role & ResponsibilitiesEnterprise Integrations & APIsDesign, develop, and maintain integrations between eCommerce platforms, ERP systems, and internal applicationsBuild and support RESTful APIs and enterprise data exchange processesManage data synchronization, transformation, validation, and interoperability across multiple systemsLead complex integration initiatives involving OroCommerce, IFS ERP, and third-party platformsServe as a technical expert for integration architecture and API developmentTroubleshoot and resolve complex integration design and implementation challengesPromote reliable, scalable, and maintainable integration practices across the organizationApplication DevelopmentSupport, enhance, and customize OroCommerce applications using PHP and SymfonyContribute across both front-end and back-end development initiativesDevelop enterprise applications using PHP, Oracle PL/SQL, JavaScript, HTML, and CSSEnsure applications meet performance, security, scalability, and maintainability standardsConduct code reviews and provide technical feedback to improve software qualityCoach and mentor junior and mid-level developersChampion software engineering best practices and coding standardsProduction Support & ReliabilityMonitor, troubleshoot, and maintain enterprise applications and integrationsPerform root cause analysis and implement long-term solutionsSupport deployments and ensure successful release management activitiesLead investigation and resolution of complex production incidentsImprove monitoring, performance optimization, and operational processesParticipate throughout the SDLC including development, testing, deployment, and supportCollaboration & DeliveryPartner with business stakeholders, IT teams, and external vendors to deliver successful solutionsParticipate in Agile ceremonies including sprint planning, reviews, and backlog refinementCreate and maintain technical documentation for integrations, applications, and workflowsAssist with project estimation, technical analysis, and architecture discussionsShare technical knowledge through mentoring, reviews, and collaborative problem-solvingDrive continuous improvement initiatives across development and support teamsSkills & Experience You Should Possess8+ years of software engineering experience with both front-end and back-end developmentStrong expertise in PHP development, ideally within Symfony-based environmentsExperience developing and supporting REST APIs and enterprise integrationsExperience working with integration platforms such as Boomi, MuleSoft, Workato, or similar technologiesAdvanced Oracle SQL and PL/SQL development experienceExperience supporting production systems and resolving complex application issuesStrong understanding of JSON, OAuth, system interoperability, and integration patternsProficiency with JavaScript, HTML, and CSSExperience working within Agile software development environmentsExcellent troubleshooting, analytical, and problem-solving abilitiesStrong communication and collaboration skillsDemonstrated technical leadership and mentoring experienceBonus Points If You HaveHands-on experience with OroCommerce development and customizationExperience integrating with IFS ERP environmentsExpertise designing enterprise-scale Boomi integrationsExperience with CI/CD pipelines and DevOps practicesBackground supporting eCommerce technology ecosystemsExperience leading integration modernization initiativesEducation & Certifications You NeedBachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related technical fieldRelevant integration, cloud, or software engineering certifications are a plusWhat We OfferAt 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 initiativesCompetitive Compensation – You choose the model that works best for you, both with company-sponsored benefits! $110,000–$118,000 annually or $68–$73 per hour. Final compensation is determined based on skill alignment, years of experience, and fair, market-based rates by geographyComprehensive 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 matchingPaid Holidays and Paid Time OffCareer Development and Advancement – Expleo is a global company in 29 Countries worldwide with a high focus on developmentStrong Team Culture – Collaborate with experienced professionals who value precision, performance, and teamworkPlease note: This role is open only to candidates who are authorized to work in the United StatesReady 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