ZipRecruiter

Log In

1

Senior Software Engineer Contract Jobs in Chicago, IL

Comcast

Sr. Software Engineer

Chicago, IL

$126.20K - $166.40K/yr

Job Summary FreeWheel is looking for passionate Sr. Software Engineers to help design, build and support our high-quality, innovative video advertising platform. This position is based in New York.

Comcast

Sr. Software Engineer

Chicago, IL

$126.20K - $166.40K/yr

Job Summary FreeWheel is looking for passionate Sr. Software Engineers to help design, build and support our high-quality, innovative video advertising platform. This position is based in New York.

AppFolio

Sr Software Engineer - Accounting

Chicago, IL · On-site +1

$126.20K - $166.40K/yr

About this job We're looking for a Senior Software Engineer to join a 6-person cross-functional product development team focused on continuing to enhance the accounting module of our Appfolio ...

Informatic Technologies

Sr Software Engineer

Chicago, IL

$126.30K - $166.50K/yr

The Senior Software Engineer engineers develops secure, scalable and reliable technology solutions, with minimal mentoring. Principal Accountabilities: * Designs, develops, documents, troubleshoots ...

Snapsheet

Senior Software Engineer

Chicago, IL · Remote

Senior Software Engineer Company: Snapsheet Job Location: USA, Remote Job Type: Full-time, direct hire About Snapsheet: Snapsheet is claims technology the way it should be: purposeful, precise, and ...

Invoca

Sr. Software Engineer I

Chicago, IL · Remote

$126.20K - $166.40K/yr

Senior Software Engineer I (Octothorpe) About Invoca: Invoca is the leading AI-powered conversation intelligence platform. We empower marketing, sales, customer experience, and contact center teams ...

Snapsheet

Senior Software Engineer

Chicago, IL · On-site +1

$135K - $165K/yr

Senior Software Engineer Company: Snapsheet Job Location: USA, Remote Job Type: Full-time, direct hire About Snapsheet: Snapsheet is claims technology the way it should be: purposeful, precise, and ...

Fitch Group

Senior Software Engineer, AI

Chicago, IL · On-site

$126.30K - $166.50K/yr

Senior Software Engineer, AI Fitch Solutions is currently seeking a Senior Software Engineer, AI based out of our Chicago office. Fitch Solutions is a leading provider of insights, data and analytics.

Fitch Solutions

Senior Software Engineer, AI

Chicago, IL · On-site

$126.30K - $166.50K/yr

Senior Software Engineer, AI Fitch Solutions is currently seeking a Senior Software Engineer, AI based out of our Chicago office. Fitch Solutions is a leading provider of insights, data and analytics.

Digitas

Senior Software Engineer

Chicago, IL · On-site

$126.30K - $166.50K/yr

Senior Full Stack Engineer We are seeking an experienced Senior Full Stack Engineer to join our Product Engineering team. This role will work on a team of engineers in all aspects of the software ...

SES Satellites

Senior Software Engineer

Chicago, IL · On-site

$126.30K - $166.50K/yr

SES Satellites is looking for a Senior Software Engineer to design and develop tools for monitoring next generation airline services. The role involves working with multi-disciplinary teams to create ...

Allied

Senior Software Engineer

Chicago, IL · On-site +1

$120K - $125K/yr

POSITION SUMMARY The Senior Software Engineer will be responsible for architecting and designing internal and external products for Allied. Problem solving and finding ways to create scalable ...

Snapsheet

Senior Software Engineer - Implementation

Chicago, IL · On-site

$126.30K - $166.50K/yr

Senior Software Engineer - Implementation Job Location: US-based, remote Job Type: Full-time About Snapsheet: Snapsheet is claims technology the way it should be: purposeful, precise, and designed to ...

Randa Corp

Sr Software Engineer

Des Plaines, IL · On-site

$110K - $118K/yr

Reporting to the Director of IT Applications, the Sr. Software Engineer will be responsible for engineering, design, development, support, and architecture of software, integrations, data, and ...

next page

Showing results 1-20

People also search for

All JobsSenior Software Engineer Contract JobsSenior Software Engineer Contract Jobs in Chicago, IL

Senior Software Engineer Contract information

See Chicago, IL salary details

$77.8K

$147.7K

$197.9K

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

As of May 28, 2026, the average yearly pay for senior software engineer contract in Chicago, IL is $147,728.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,300.00 and $166,500.00 per year, depending on experience, location, and employer.

What Are Senior Software Engineer Contract Jobs?

Senior software engineer contract jobs involve working on software engineering projects on a temporary contract basis. Your duties and responsibilities in this career vary depending on the needs of each client. In general, you utilize your coding skills and computer program knowledge to create software, applications, or operating systems. You typically work with a software company or information technology organization. As a contractor, you work with clients to assess their needs and create or update software or systems to meet the needs of each client.

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

To thrive as a Senior Software Engineer on contract, you need advanced programming skills, a strong understanding of software architecture, and several years of experience, often supported by a relevant degree or certifications. Proficiency with development tools like Git, CI/CD systems, cloud platforms (AWS, Azure, or Google Cloud), and familiarity with Agile methodologies are typically expected. Outstanding problem-solving abilities, effective communication, and adaptability are crucial soft skills for collaborating with diverse teams and adjusting to new projects quickly. These skills and qualities enable contract engineers to deliver high-quality solutions efficiently, integrate smoothly into client environments, and meet project goals within tight timelines.

What are the typical challenges faced by Senior Software Engineers working on contract assignments?

Senior Software Engineers on contract often navigate challenges such as quickly acclimating to new codebases and team cultures, managing time effectively across multiple projects, and balancing client expectations with technical feasibility. Since contracts are temporary, there may be less onboarding support and less time to build deep relationships with permanent team members, making communication skills especially important. However, this environment also allows for exposure to diverse technologies and problem-solving scenarios, which can significantly enhance your expertise and professional network.

What is a Senior Software Engineer Contract?

A Senior Software Engineer Contract refers to a temporary employment agreement where an experienced software engineer is hired for a specific period or project rather than as a permanent employee. These professionals bring advanced technical skills and leadership to design, develop, and maintain complex software systems. Contract roles often focus on delivering specialized expertise, meeting project deadlines, and providing mentorship to junior team members. Compensation and benefits may differ from full-time positions, and contracts can range from a few months to a year or more depending on the project's scope.

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

AspectSenior Software Engineer ContractSoftware Engineer
CredentialsBachelor's degree in CS or related field, experience, possibly certificationsBachelor's degree in CS or related field, entry to mid-level experience
Work EnvironmentProject-based, temporary contracts, often freelance or consultingFull-time employment, ongoing projects within companies
Employer & Industry UsageTech firms, startups, consulting agenciesTech companies, software development firms, startups
Search & Comparison IntentLooking for contract roles, freelance opportunities, project-based workSeeking permanent positions, career growth, or full-time roles

The main difference between a Senior Software Engineer Contract and a Software Engineer lies in employment type and work setup. Contract roles are temporary, project-focused, and often freelance, while Software Engineers typically work full-time within a company. Both roles require similar technical skills and credentials, but their work arrangements and career paths differ.

More about Senior Software Engineer Contract jobs
What are the most commonly searched types of Senior Software Engineer jobs in Chicago, IL? The most popular types of Senior Software Engineer jobs in Chicago, IL are:
What are popular job titles related to Senior Software Engineer Contract jobs in Chicago, IL? For Senior Software Engineer Contract jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Senior Software Engineer Contract jobs in Chicago, IL look for? The top searched job categories for Senior Software Engineer Contract jobs in Chicago, IL are:
What cities near Chicago, IL are hiring for Senior Software Engineer Contract jobs? Cities near Chicago, IL with the most Senior Software Engineer Contract job openings:
Senior Software Engineer Contract jobs near you
Senior Software Engineer (API Management)

Senior Software Engineer (API Management)

Caterpillar Inc.

Chicago, IL • On-site

$126.30K - $166.50K/yr

Full-time

Posted 8 days ago

Caterpillar Inc. rating

7.5

Company rating: 7.5 out of 10

Based on 457 frontline employees who took The Breakroom Quiz

216th of 415 rated machine equipment manufacturers

Job description

Job Summary:
Caterpillar Inc. is a global leader in manufacturing and technology, focused on building sustainable communities. The Senior Software Engineer will be part of the API Management team, responsible for developing, securing, and managing APIs on the Apigee platform, utilizing agile methods and advanced technologies.
Responsibilities:
• Designing, modifying, developing, writing and implementing software programming applications for target system using agile methods.
• Acquiring client requirements; resolving workflow problems through automation optimization.
• Writing source codes for new applications, and/or generating and enhancing code samples for existing applications.
• Utilizing automated testing tools to perform the testing and maintenance.
Qualifications:
Required:
• Knowledge of software integration processes and functions; ability to design, develop and maintain interfaces and linkage to alternative platforms and software packages.
• Knowledge of software development life cycle; ability to use a structured methodology for delivering and managing new or enhanced software products to the marketplace.
• Knowledge of software product design; ability to convert market requirements into the software product design.
• Knowledge of technical aspects of a software products; ability to design, configure and integrate technical aspects of software products.
Preferred:
• RESTful API design, OpenAPI/Swagger contract-first development, API linting/governance (e.g., Spectral), automated regression/contract testing, OWASP API security awareness, and the ability to design and develop AI agents/copilots and AI-assisted workflows using responsible AI practices.
• Hands-on engineering with Apigee Edge and Apigee X: build and operate API proxies/shared flows for REST/SOAP, including transformations and fault handling.
• Lead Edge → X migrations: inventory and dependency mapping (KVMs, target servers, certificates), risk/effort sizing, and migration wave planning.
• Gateway security and traffic management: OAuth2/JWT, API keys, rate limiting/quotas, caching, and custom logic (e.g., JavaScript callouts).
• GCP networking for API platforms: VPC/subnets, DNS, firewalling, hybrid connectivity, and load-balancing/routing patterns to Apigee X.
• Security on GCP: IAM/service accounts (least privilege), TLS/mTLS and certificate rotation, plus edge protection (e.g., WAF/Cloud Armor).
• Platform reliability and infrastructure automation: Terraform/IaC for GCP components, dashboards/alerts (SLOs/SLIs), and incident response to support stable API platform operations.
Company:
For 100 years, we’ve been helping customers build a better, more sustainable world. Founded in 1925, the company is headquartered in Peoria Heights, USA, with a team of 10001+ employees. The company is currently Late Stage.

What Caterpillar Inc. employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply