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Senior Software Engineer Startup Jobs in Illinois

Senior Software Engineer

Waukegan, IL · On-site

$116K - $153K/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

Glenview, IL

$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

Glenview, IL · 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

Chicago, IL · On-site +1

$126K - $166K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application infrastructure that power high-quality, human-centered information experiences. This role is ...

Sr. Software Engineer

Oak Brook, IL · On-site

$123K - $163K/yr

Senior Software Engineer (.NET / Azure / Angular) Location: Oakbrook Terrace, IL (Hybrid - Onsite Mondays & Tuesdays)- MUST CURRENTLY RESIDE IN IL No C2C, third-party vendors, or sponsorship ...

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

TXI is seeking a Senior Software Engineer who can see both the forest and the trees. Building the right thing is as hard as building it right. Most products fail because they solve the wrong problem.

Senior Software Engineer

Chicago, IL · On-site +1

$126K - $166K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application infrastructure that power high-quality, human-centered information experiences. This role is ...

Senior Software Engineer (.NET) - Remote Location: Remote (U.S.) Salary: $150,000-$175,000 Base Salary Job Overview We are seeking an experienced Senior Software Engineer to join a growing software ...

Senior Software Engineer

Chicago, IL

$126K - $166K/yr

TXI is seeking a Senior Software Engineer who can see both the forest and the trees. Building the right thing is as hard as building it right. Most products fail because they solve the wrong problem.

Sr Software Engineer

Naperville, IL · On-site

$95K - $140K/yr

Responsibilities The Senior Software Engineer is a highly capable individual contributor who operates with a high degree of autonomy, owns complex technical problems end-to-end, and elevates the ...

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

Caterpillar Inc. seeks Senior Software Engineer at its facility located at 540 W Madison St., Chicago, IL 60661. Manage Salesforce Marketing Cloud (SFMC) platform to drive effective digital marketing ...

Senior Software Engineer

Chicago, IL · On-site

$112K - $183K/yr

Caterpillar Inc. seeks Senior Software Engineer at its facility located at 540 W Madison St, Chicago, IL 60661. Design, modify, develop, write, and implement software programming applications for ...

Senior Software Engineer

Oak Brook, IL · On-site

$123K - $163K/yr

Job Purpose Senior Software Engineer - Cloud Software, Scala, Big Data, API services You will join a highly skilled software team in delivering innovative big data pipeline which provide data to ...

Senior Software Engineer

Vernon Hills, IL · On-site

$119K - $157K/yr

Position Summary The Senior Software Engineer will be responsible for the design, documentation, development, and testing of new and existing Software solutions within the Digital Workflow Solutions ...

Senior Software Engineer

Vernon Hills, IL · Hybrid

$119K - $157K/yr

Position Summary The Senior Software Engineer will be responsible for the design, documentation, development, and testing of new and existing Software solutions within the Digital Workflow Solutions ...

Senior Software Engineer

Chicago, IL · Hybrid

$126K - $166K/yr

Position Summary The Senior Software Engineer will be responsible for the design, documentation, development, and testing of new and existing Software solutions within the Digital Workflow Solutions ...

Showing results 21-40

Senior Software Engineer Startup information

See Illinois salary details

$73.2K

$138.9K

$186.1K

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

As of Aug 23, 2026, the average yearly pay for senior software engineer startup in Illinois is $138,853.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,700.00 and $156,500.00 per year, depending on experience, location, and employer.

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 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.

How much does a senior software engineer startup make?

A senior software engineer at a startup typically earns between $100,000 and $160,000 annually, depending on location, experience, and company size. Compensation may also include stock options or equity, especially in early-stage startups, and often requires proficiency in programming languages like Python, Java, or JavaScript.

Is there a shortage of senior software engineers?

There is a high demand for senior software engineers across many industries due to the ongoing need for advanced technical skills, experience with programming languages like Java, Python, and cloud platforms, and leadership abilities. This demand often results in competitive salaries and opportunities, especially for those with strong problem-solving skills and experience in fast-paced startup environments.

What are the most commonly searched types of Software Engineer Startup jobs in Illinois?

The most popular types of Software Engineer Startup jobs in Illinois are:

What are popular job titles related to Senior Software Engineer Startup jobs in Illinois?

For Senior Software Engineer Startup jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Senior Software Engineer Startup jobs in Illinois look for?

The top searched job categories for Senior Software Engineer Startup jobs in Illinois are:

What cities in Illinois are hiring for Senior Software Engineer Startup jobs?

Cities in Illinois with the most Senior Software Engineer Startup job openings:

Infographic showing various Senior Software Engineer Startup job openings in Illinois as of August 2026, with employment types broken down into 100% Full Time. Highlights an 66% In-person, and 34% Remote job distribution, with an average salary of $138,853 per year, or $66.8 per hour.

Senior Software Engineer

ULINE

Waukegan, IL • On-site

$116K - $153K/yr

Full-time

Medical, Retirement, PTO

Re-posted 14 days ago


Uline rating

8.2

Company rating: 8.2 out of 10

Uline

Based on 113 frontline employees who took The Breakroom Quiz

7.1

Company rating compared to similar companies: 7.1 out of 10

Retail wholesalers average

Based on 13,039 frontline employees who took The Breakroom Quiz

The best things about working at Uline

  • 100%

    100% say they get paid time off

    say they get paid time off

  • 98%

    98% say their health insurance is affordable

    say their health insurance is affordable

  • 81%

    81% say they get enough training

    say they get enough training

Featured by Uline, based on 113 Breakroom Quiz responses from their frontline employees


Job description

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 us as a Senior Software Engineer, where you'll works hands-on to design and implement solutions that power our always-on cloud-native microservices and drive success at our growing North American company.

Careers Packed with Potential. Backed by 45+ years of success, Uline offers opportunities to grow your career with stability you can count on.

Why IT at Uline?
Uline's 450+ person in-house tech team builds and supports the custom systems that run our business. The team owns and creates solutions that operate at scale, supporting operations from warehouse management to e-commerce.

Position Responsibilities

  • Drive the transition to a resilient, always-on microservices architecture on RedHat OpenShift.

  • Provide technical guidance to a team of Software Engineers, ensuring project support and strong performance.

  • Build and secure scalable cloud-native applications using Java and Spring Boot.

  • Enhance system observability and monitoring across thousands of microservices with tools like DynaTrace, Grafana and Elastic Stack.

  • Streamline deployments with a GitOps powered CI/CD pipeline built on Tekton and Argo CD.

Minimum Requirements

  • Bachelor's degree in information technology, computer science or related field.

  • 10+ years of Java development and SQL experience.

  • 5+ years of Microservices development with Java Spring framework.

  • 2+ years deploying and managing Java microservices on Kubernetes platforms such as RedHat OpenShift.

  • Uline does not participate in the H1-B lottery.

Benefits

  • Complete health insurance coverage and 401(k) with 6% employer match that starts day one!

  • Multiple bonus programs.

  • Paid holidays and generous paid time off.

  • Tuition Assistance Program that covers professional continuing education.

Employee Perks

  • On-site cafe and first-class fitness center with complimentary personal trainers.

  • Over four miles of beautifully maintained walking trails.

About Uline

Uline, a family-owned company, is North America's leading distributor of shipping, industrial, and packaging materials with over 9,800 employees across 14 locations.

Uline is adrug-free workplace. All new hires must complete a pre-employment hair follicle drug screening. All positions are on-site.

EEO/AA Employer/Vet/Disabled

#LI-KK2

#CORP

(#IN-PPITL2)

#ZR-HQIT

Our employees make the difference and we are committed to offering exceptional benefits and perks! Explore Uline.jobs to learn more!


Working at Uline

Perks for frontline workers

From Uline, via Breakroom

  • Complete health insurance coverage and 401(k) with 6% employer match that starts day one!

  • Multiple bonus programs.

  • Paid holidays and generous paid time off.

  • Tuition Assistance Program that covers professional continuing education.

  • Fitness center and walking trails at select locations.

  • In-house speakers, workshops and seminars.

What to expect from working at Uline

From Uline

About Uline, in their own words

From Uline

Uline, a family-owned business headquartered in Kenosha County, Wisconsin, is the leading distributor of shipping, industrial and packaging materials to businesses throughout North America.


What Uline employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Uline logo

About Uline

Sourced by ZipRecruiter

Uline is North America's leading distributor of shipping, industrial and packaging materials. We're a family-owned company known for incredible service, quality products and same-day shipping of our huge in-stock inventory. With over 9,000 employees across 13 locations, it's time you joined Uline.

Industry

Paper product wholesalers, trucking and wholesale

Company size

5,001 - 10,000 Employees

Headquarters location

Pleasant Prairie, WI, US

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