Senior Software Development Engineer Jobs in Wisconsin
Senior Software Development Engineer jobs in Wisconsin are consistently active, with strong demand concentrated in healthcare technology, financial services software, and enterprise systems across Milwaukee, Madison, and the Fox Valley corridor. Major employers with lasting Wisconsin footprints include Epic Systems, Northwestern Mutual, and Fiserv, all of which maintain substantial engineering teams in the state. The most sought-after specialties are cloud-native architecture, distributed systems design, and full-stack platform engineering at scale. Find a role that fits below and apply directly.
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Employment Type: Full-Time
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
- 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 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
- 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
- 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
- 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
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 – 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 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
See All 26 Senior Software Development Engineer Jobs in Wisconsin
Find roles in Wisconsin that match your experience and apply in just a few clicks.
Find JobsSenior Software Development Engineer Jobs by City in Wisconsin
Where Wisconsin roles are concentrated, by current openings.
Senior Software Development Engineer Job Market in Wisconsin
A snapshot from current Wisconsin openings, updated as new roles post.
Who's Hiring


Top Industries Hiring
- Manufacturing
- Technology & Software
- Consulting & Professional Services
What Wisconsin Employers Look For
The qualifications that appear most often in senior software development engineer jobs across Wisconsin.
- Bachelor's or master's degree in computer science, software engineering, or a related field
- Seven or more years of professional software development experience in production environments
- Deep proficiency in at least one compiled language such as Java, C++, or C#
- Demonstrated experience designing and maintaining large-scale distributed or cloud-based systems
- Strong background in agile development practices and leading technical design reviews
- Experience mentoring junior engineers and driving engineering standards across a team
Senior Software Development Engineer Jobs in Wisconsin: Frequently Asked Questions
How do you become a senior software development engineer in Wisconsin?
Software engineering in Wisconsin carries no state-issued license or board registration, so the path runs through education and experience. Most Wisconsin employers expect a bachelor's degree in computer science, software engineering, or a closely related field, followed by several years of progressively responsible development work. Candidates who have led system design, mentored peers, and delivered complex projects at Wisconsin-based companies in healthcare IT, fintech, or enterprise software are consistently the strongest hires.
How much do senior software development engineers make in Wisconsin?
Senior software development engineers in Wisconsin earn a median of about $122,660 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $77,710 for the lowest 10% to over $168,630 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire senior software development engineers in Wisconsin?
Wisconsin senior software development engineer roles are posted by Speechify, U.S. Venture, and KBX and others right now, based on current listings on Migrate Mate as of August 2026. Wisconsin's concentration of healthcare IT firms, insurance and financial services headquarters, and payment technology companies means openings appear across a notably broad range of industries compared with many Midwest states.
Which Wisconsin cities have the most senior software development engineer jobs?
Madison, Green Bay, and Middleton account for the largest share of senior software development engineer openings in Wisconsin. Milwaukee leads because of its deep financial services and insurance sector anchored by firms like Northwestern Mutual and Fiserv, Madison draws heavily from Epic Systems and the University of Wisconsin tech ecosystem, and smaller metros like Appleton and Green Bay contribute openings tied to regional manufacturing and insurance employers that maintain in-house engineering teams.
Are there remote senior software development engineer jobs in Wisconsin?
Yes, and more than most fields. About 75% of senior software development engineer openings tied to Wisconsin are remote or hybrid as of August 2026, reflecting how naturally the role lends itself to distributed work. The portions of the role most commonly offered as fully remote are backend platform work and individual-contributor architecture roles, while positions that involve leading on-site teams or embedded client delivery tend to require in-person presence.
How can I get hired as a senior software development engineer in Wisconsin with little or no experience?
The most realistic entry path is through an associate or software engineer role at a Wisconsin employer that runs formal development programs for new graduates. Epic Systems in Verona runs a well-known technical implementation and development track for recent graduates, and Northwestern Mutual and Fiserv in Milwaukee both hire associate software engineers who move into senior roles over time. Building a portfolio of personal or open-source projects demonstrating system design thinking, and earning a cloud certification from AWS or Google, gives candidates a concrete edge when experience is limited.
Where can I find and apply to senior software development engineer jobs in Wisconsin?
You can find and apply to senior software development engineer jobs in Wisconsin on Migrate Mate, which lists current Wisconsin openings updated regularly. Search the listings for roles that match your experience and target location, then apply directly to the ones that fit.
See All 26 Senior Software Development Engineer Jobs in Wisconsin
Find roles in Wisconsin that match your experience and apply in just a few clicks.
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