ZipRecruiter

Log In

1

Senior Software Engineer Startup Jobs in Wisconsin

Schneider

Senior Software Engineer

Green Bay, WI · On-site

$119.20K - $157.10K/yr

Senior Software Engineer Work model:On-Site Location:Green Bay, WI, USA Shift:First shift Job level:Individual Contributor Schedule:Full time; Monday-Friday, 8 a.m.-5 p.m. Job overview: Schneider is ...

Ametek

Senior Software Engineer

Madison, WI

$123.50K - $162.80K/yr

The Senior Software Engineer acts as a recognized technical expert and a reference for complex software components. The Senior Software Engineer contributes through deep technical expertise, handson ...

Ametek

Senior Software Engineer

Madison, WI · On-site

$123.50K - $162.80K/yr

The Senior Software Engineer contributes through deep technical expertise, hands-on development, and technical guidance, without direct people management responsibilities. In this role, the ...

Infleqtion

Sr Software Engineer

Madison, WI · On-site

$106K - $145K/yr

At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused ... We are seeking a Senior Software Engineer to join the team building the control system software for ...

Infleqtion

Sr Software Engineer

Madison, WI · On-site

$106K - $145K/yr

At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused ... We are seeking a Senior Software Engineer to join the team building the control system software for ...

ULINE

Senior Software Engineer

Kenosha, WI

$119.50K - $157.50K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

ULINE

Senior Software Engineer

Milwaukee, WI

$120.70K - $159.10K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

ULINE

Senior Software Engineer

Pleasant Prairie, WI · On-site

$118.70K - $156.50K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

ULINE

Senior Software Engineer

Pleasant Prairie, WI

$118.70K - $156.50K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

Uline

Senior Software Engineer

Pleasant Prairie, WI

$118.70K - $156.50K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

Chipply

Sr. Software Engineer

New Berlin, WI · On-site +1

$120.20K - $158.50K/yr

We are seeking a talented Senior Software Engineer to join our growing team. In this role, you will report to our Engineering lead and work with our engineering team to deliver high-quality features ...

Alegeus

Senior Software Engineer

Milwaukee, WI · Hybrid

$120.70K - $159.10K/yr

Senior Software Engineer Join our team at Alegeus, where you'll experience unmatched opportunity and a culture that cares deeply about succeeding together. As a Senior Software Engineer, you'll drive ...

Alegeus

Senior Software Engineer

Milwaukee, WI · On-site

$120.70K - $159.10K/yr

Senior Software Engineer Join our team at Alegeus, where you'll experience unmatched opportunity and a culture that cares deeply about succeeding together. As a Senior Software Engineer, you'll drive ...

Fiserv, Inc.

Senior Software Engineer

Milwaukee, WI · On-site

$120.70K - $159.10K/yr

Job Title Senior Software Engineer TITLE: Senior Software Engineer EMPLOYER: Fiserv Solutions, LLC LOCATION: Milwaukee, WI (and various unanticipated locations throughout the US subject to ...

HirexHire

Senior Software Engineer

Milwaukee, WI · On-site

$120.70K - $159.10K/yr

THE ROLE Our client is seeking a highly skilled Senior Software Engineer to join their growing engineering team. In this role you will work closely with experienced engineers and report to the ...

HirexHire

Senior Software Engineer

Milwaukee, WI · Remote

$120.40K - $158.70K/yr

THE ROLE Our client is seeking a highly skilled Senior Software Engineer to join their growing engineering team. In this role you will work closely with experienced engineers and report to the ...

HirexHire

Senior Software Engineer

Milwaukee, WI · Remote

$120.40K - $158.70K/yr

THE ROLE Our client is seeking a highly skilled Senior Software Engineer to join their growing engineering team. In this role you will work closely with experienced engineers and report to the ...

next page

Showing results 1-20

People also search for

All JobsSoftware Engineer Startup JobsSenior Software Engineer Startup JobsSenior Software Engineer Startup Jobs in Wisconsin

Senior Software Engineer Startup information

See Wisconsin salary details

$76.2K

$144.6K

$193.8K

How much do senior software engineer startup jobs pay per year?

As of May 30, 2026, the average yearly pay for senior software engineer startup in Wisconsin is $144,632.00, according to ZipRecruiter salary data. Most workers in this role earn between $123,600.00 and $163,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Software Engineer at a startup, and why are they important?

To thrive as a Senior Software Engineer at a startup, you need advanced programming abilities, architectural design experience, and a solid understanding of software development lifecycles, typically backed by a bachelor's degree in computer science or a related field. Familiarity with modern frameworks, cloud platforms (like AWS or Azure), version control systems (such as Git), and agile methodologies is essential, with certifications in relevant technologies being advantageous. Strong problem-solving, adaptability, and effective communication skills help you navigate the dynamic startup environment and mentor junior team members. These skills are crucial to rapidly building scalable solutions, driving innovation, and supporting business growth in a fast-paced and often ambiguous setting.

What are some unique challenges Senior Software Engineers face when working at a startup compared to a larger company?

Senior Software Engineers at startups often navigate a fast-paced, rapidly changing environment where priorities can shift quickly. Unlike at larger organizations with established processes and specialized teams, startup engineers may wear multiple hats, handling everything from architecture decisions to hands-on coding and even DevOps tasks. This role typically requires a high degree of autonomy and the ability to make impactful technical decisions with limited resources. The collaborative nature means frequent interaction with product managers, designers, and often even company leadership, creating opportunities for broad influence but also demanding strong communication and adaptability.

What does a Senior Software Engineer do at a startup?

A Senior Software Engineer at a startup is responsible for designing, developing, and maintaining the core software products or services. They often take on a broad range of tasks, including coding, code reviews, system architecture, and mentoring junior team members. In a startup environment, they may also contribute to product decisions, help set technical direction, and quickly adapt to changing priorities. Their role is critical in building scalable, reliable solutions while fostering innovation and collaboration within a small, fast-paced team.

What is the difference between Senior Software Engineer Startup vs Software Engineer Startup?

AspectSenior Software Engineer StartupSoftware Engineer Startup
Required CredentialsBachelor's/Master's in CS or related field, 3+ years experienceBachelor's in CS or related field, 0-2 years experience
Work EnvironmentFast-paced startup, leadership responsibilities, mentorshipCollaborative team, learning-focused, entry-level to mid-level tasks
Employer & Industry UsageTech startups, scale-ups, innovative projectsEarly-stage startups, product development teams
Common Search & ComparisonHigher responsibility, technical expertise, leadershipLearning opportunities, foundational skills, growth potential

The main difference between a Senior Software Engineer Startup and a Software Engineer Startup lies in experience, responsibilities, and leadership. Senior Software Engineers typically have more experience, take on mentorship roles, and handle complex projects, while Software Engineers are often in entry to mid-level positions focused on skill development and supporting team tasks.

What are the most commonly searched types of Software Engineer Startup jobs in Wisconsin? The most popular types of Software Engineer Startup jobs in Wisconsin are:
What are popular job titles related to Senior Software Engineer Startup jobs in Wisconsin? For Senior Software Engineer Startup jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Senior Software Engineer Startup jobs in Wisconsin look for? The top searched job categories for Senior Software Engineer Startup jobs in Wisconsin are:
What cities in Wisconsin are hiring for Senior Software Engineer Startup jobs? Cities in Wisconsin with the most Senior Software Engineer Startup job openings:
Senior Software Engineer Startup jobs near you
Senior Software Engineer

Senior Software Engineer

Expert Technology Services

West Bend, WI • On-site

$123.80K - $163.20K/yr

Contractor

Posted 21 days ago

Job description

Job Summary (List Format): Senior Software Developer
- 6–12-month contract for two Senior Software Developers
- Immediate priority project: Just-In-Time Appointments (JIT); Agency Data Modernization (ADM) to follow
- Projects have executive urgency; previously paused programs now re-launched
- Focus on API modernization and improved data access for sales/underwriting
- Approx. 30 API integrations; complex, multi-threaded development
- Team structure: Two squads (~4 engineers each), 1 new hire per squad
- Backend-heavy, API-first architecture using Azure stack
- Core technologies: REST APIs, event-driven architecture (service bus), Azure DevOps (CI/CD), Redstone design system
- Minimal UI work; React is nice-to-have
- Work from pre-defined architecture and API specs
- Greenfield development: build APIs and event-driven services, translate legacy XML systems to modern APIs
- Fast delivery with minimal onboarding/ramp-up
- Must-have skills:
- Strong backend/API engineering
- Experience with REST and event-driven architectures
- Agile delivery experience
- Ability to independently build, test, and deliver from specs
- Write unit tests
- Comfortable in fast-paced, evolving team structures
- Nice-to-have skills:
- Azure DevOps/pipeline setup
- Experience modernizing legacy systems
- Data transformation/mapping
- Light React experience
- No background check or drug screen required
- LinkedIn profile required for all candidates