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Senior Software Engineer Startup Jobs in Wisconsin

Senior Software Engineer

Madison, WI · On-site

$123K - $162K/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 ...

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 ...

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 ...

Senior Software Engineer

Madison, WI · On-site

$123K - $162K/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 ...

Senior Software Engineer

Kenosha, WI

$119K - $157K/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 ...

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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

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 ...

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 ...

Senior Software Engineer

Pleasant Prairie, WI · On-site

$118K - $156K/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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

Senior Software Engineer

Milwaukee, WI · Hybrid

$120K - $159K/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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/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 ...

Sr. Software Engineer

Madison, WI · Hybrid

$123K - $162K/yr

Sr. Software Engineer Sr. Software Engineer Location: Madison, WI (Remote and Hybrid available for highly qualified candidates) Salary: Up to $155,000 + bonus Requirements: 5+ years of experience ...

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Showing results 1-20

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 Jun 25, 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 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 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 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 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 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

Senior Software Engineer

Ametek

Madison, WI • On-site

$123K - $162K/yr

Other

Posted 5 days ago


AMETEK rating

7.6

Company rating: 7.6 out of 10

Based on 44 frontline employees who took The Breakroom Quiz

64th of 139 rated electronics manufacturers


Job description


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 development, and technical guidance, without direct people management responsibilities. In this role, the individual will design and develop AP Suite software for reconstruction and analysis of Atom Probe Tomography (APT) data, while providing technical leadership for key components of the platform.

Key Responsibilities:

  • Provide technical leadership and architectural direction for major AP Suite components, including reconstruction pipelines, data models, and analysis workflows.
  • Design, develop, and maintain Windows desktop applications for reconstruction and analysis of large 3D atom probe datasets.
  • Develop and optimize scientific analysis algorithms with a focus on accuracy, performance, and usability.
  • Drive performance optimization of algorithms and scalability of data pipelines, including multithreading and efficient memory usage for large datasets.
  • Lead sustaining engineering efforts, including defect analysis, refactoring, and modernization of existing software.
  • Collaborate with scientists, service teams, customers, and thirdparty contributors to translate domain needs into robust production software.
  • Support applications, service, and manufacturing teams through technical troubleshooting and guidance as needed.
  • Provides technical guidance and mentoring to other software engineers when required.

Qualifications:

We're looking for a selfmotivated, seniorlevel software engineer with a track record of delivering complex analytical or scientific software. Preferred qualifications include experience in the following area:

  • Designing and maintaining complex Windows desktop applications using C#, C++, or similar languages in production environments.
  • Building .NET desktop applications using WPF and MVVM, including data access with Entity Framework.
  • Using modern software development practices such as source control, Agile development, Clean Code, and continuous integration.
  • Developing or implementing 3D data analysis algorithms in scientific, engineering, or analytical software domains.
  • Developing performancecritical or multithreaded applications that work with large datasets.
  • Designing effective user interfaces for technical or scientific users.
  • Developing analytical or scientific software or quickly learning and applying complex domain knowledge.
  • Owning software components across multiple releases, contributing to technical design discussions, and mentoring other engineers (a plus).

Education & Experience:

The ideal candidate will satisfy the following requirements:

  • BS in Computer Science (or BS in Engineering, Math, or Science with relevant practical software development experience) or equivalent professional experience.
  • Minimum 8 years of professional software design and development experience, with increasing responsibility over time.
  • Experience developing software in a collaborative environment (source control, release management, continuous integration and testing, validation, documentation, etc.)
  • Must be experienced in Windows desktop applications.
  • Ability to work independently with strong analytical, communication, and teamwork skills.
  • A demonstrated drive for quality results and pride in workmanship and team success.

About Us:

CAMECA is a world leader in the design and manufacture of scientific instruments for elemental and isotopic microanalysis. CAMECA is a business unit of AMETEK, Inc., with offices located in Paris, France, and Madison, WI. CAMECA is committed to continuously broadening our product offerings and expanding the range of applications each instrument and technique can address through sustained, long-term R&D investments and close collaborations with leading academic research units. Today, our products serve a broad range of laboratory and process control applications in end markets that include semiconductor, nanoscience, environment, geology, nuclear, and material sciences. 


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