Senior Software Developer Jobs in Illinois

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Senior Software Engineer, Developer Infra (Python)

Airbnb

•

Remote

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: Dev Infra's mission is to enable Airbnb developers to develop, merge and release high quality code quickly a
Posted 2 days ago | Updated 8 hours ago

Sr iOS Developer

Randstad Digital

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Remote or San Bruno, California, USA

Contract

job summary: 5+ years of application development experience on iOSDeep understanding of UI fundamentals (e.g. View Controller lifecycle, etc.)Deep understanding of the Swift, iOS frameworks and design patterns.Exposure to integrating RESTful APIs and web services with applications.strong debugging and trouble-shooting skills.strong knowledge of mobile security best practices.The ability to work in a fast, agile and nimble environment with frequent change. location: San Bruno, California job typ
Posted 5 days ago | Updated 2 hours ago

Senior Java Developer

Randstad Digital

•

Chicago, Illinois, USA

Contract

job summary: Senior Java Developer on a software engineering team that build and enhance Identity and Access Management (IAM) solutions to support cybersecurity initiatives for the company. Responsibilities include: Interface with engineering leads to define requirements, deliverables, and provide the necessary engineering expertise & support to ensure delivery.Partner with cybersecurity architects and lines of business architects to drive the strategic IAM architectureAble to prototype new te
Posted 8 days ago | Updated 2 hours ago

Sr. Python Developer

Dexian DISYS

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Remote

Contract

Job Description: We are seeking an experienced and highly skilled Senior AWS Software Engineer to join our dynamic team. The ideal candidate will have extensive experience with Amazon Web Services (AWS) and the ability to provide high-level estimations for new products. Additionally, this individual will be adept at asking probing questions to ensure accurate and comprehensive estimations. The Senior AWS Software Engineer will also be responsible for overseeing and leading software engineers to
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Posted 22 days ago | Updated 9 hours ago

Sr. Associate Software Developer/Engineer

McKesson Corporation

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Remote or Overland Park, Kansas, USA

Full-time

McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve - we care. What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patien
Posted 9 days ago | Updated 8 hours ago

Senior C++ Software Engineer - R

Next Step Systems

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Chicago, Illinois, USA

Full-time

Senior C++ Software Engineer, Chicago, IL We are looking to hire a highly talented Senior C++ Software Engineer to join the technology team. This Senior C++ Software Engineer position is 100% Onsite and NOT open for Remote. Senior C++ Software Engineer Responsibilities: - Work collaboratively with technology and business teams on trading and research platforms. - Design and implement high quality software solutions used for algorithmic trading, exchange connectivity, and research. - Explore and
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Posted 5 days ago | Updated 2 days ago

Senior Salesforce Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

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Remote

Contract, Third Party

Position Senior Salesforce Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly experienced Senior Salesforce Developer with over 10 years of expertise in designing, developing, and maintaining complex Salesforce applications and integrations. The ideal candidate should have a deep understanding of Salesforce best practices, Lightning Components, Apex programming, and complex data modeling, along with proven leadership in guiding
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Posted 50 days ago | Updated 3 days ago

Sr. Infor CSI/Syteline Developer

Oscar Technology

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Remote

Full-time

Job Title: Senior Syteline Developer Location: Remote Employment Type: Full-Time Compensation: Base salary + bonus incentives based on billable hours Position Overview We are seeking a highly skilled Senior Syteline Developer to support both cloud implementations and on-premises continuous improvement projects for clients using Infor CloudSuite Industrial (CSI/Syteline). This role will play a critical part in delivering tailored ERP solutions across a variety of industries, helping clients i
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Posted 1 day ago | Updated 9 hours ago

Senior Software Engineer, Fullstack (Developer - CDP API)

Coinbase

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Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the
Posted 57 days ago | Updated 8 hours ago

Senior Clarity PPM Software Developer

Computer Enterprises, Inc.

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Remote

Contract

Job at a Glance: Title: Clarity PPM Developer Location/Schedule: 100% remote schedule, EST hours Contract: 1 year initial duration with potential for extension of up to two years or conversion to full-time employment status with the client Pay: $76.50 - $79.50 per hour + optional medical, dental, vision, 401(k) match Responsibilities: Design, develops, tests enhancements to Clarity configuration and integrations on the DX T&D Clarity instance. Design and create packages, stored procedures, views
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Posted 17 days ago | Updated 5 days ago

Senior Front-End Developer (10+ Years) - Alpharetta, GA - Remote

URSI Technologies Inc.

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Remote or Alpharetta, Georgia, USA

Third Party, Contract

Position Senior Front-End Developer (10+ Years)Location Alpharetta, GADuration 1+ Year (Extendable) Job Description: We re hiring a Senior Front-End Developer with 10+ years of experience in building responsive, high-performance web applications. Ideal candidates are experts in React.js, JavaScript (ES6+), and modern UI/UX best practices.Key Skills:Tech Stack: HTML5, CSS3, JavaScript (ES6+), React.js, Next.js, Vue.js, AngularStyling: Tailwind CSS, SASS, Styled ComponentsState Management: Redux,
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Posted 60+ days ago | Updated 3 days ago

Sr Developer, Software (IT)

DaVita Inc.

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Remote or DeLand, Florida, USA

Full-time

Posting Date 06/12/2025 3000 DaVita Way, Deland, Florida, 32724-2039, United States of America Developer, IT Software (Labs) General Purpose of the Job The Developer, IT Software (Lab) designs and develops .NET applications. Specifically, this position may develop applications using a combination of .NET technologies (e.g., C# and ASP.Net) and database objects (e.g., tables, triggers, packages, stored procedures and functions). This position also writes technical specifications, supports qua
Posted 60+ days ago | Updated 8 hours ago

Senior Quantitative Researcher, Strategy Developer, Buy-Side - R

Next Step Systems

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Chicago, Illinois, USA

Full-time

Senior Quantitative Researcher, Strategy Developer, Buy-Side, Chicago, IL We are looking to hire a highly talented Senior Quantitative Researcher, Strategy Developer to join the technology team. This Senior Quantitative Researcher, Strategy Developer position is 100% Onsite and NOT open for Remote. Senior Quantitative Researcher, Strategy Developer Responsibilities: - Work collaboratively with the technology and business teams to develop an understanding of complex financial markets, products,
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Posted 5 days ago | Updated 2 days ago

Senior Project Manager (Multifamily Developer)

Jobot

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Vernon Hills, Illinois, USA

Full-time

Leadership Role with Established, Design Build General Contractor. Company Has Great Reputation of Promoting From Within This Jobot Job is hosted by: Ross Theel Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $100,000 - $175,000 per year A bit about us: We are a growth-minded, design-build developer that is looking for future leaders to join our team. We pride ourselves on a track record of excellence and we have decades of pristine project
Posted 2 days ago | Updated moments ago

Senior Duck Creek Policy Developer

Vaco by Highspring

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Remote

Contract

Job Title: Senior Duck Creek Developer Job Type: Contract-to-hire About the Role: We are seeking an experienced Senior Duck Creek Developer to join our team. This role involves designing, developing, and maintaining Duck Creek Policy solutions while collaborating with cross-functional teams to deliver high-quality software products. Qualifications: 8+ years of software development experience 5+ years of Duck Creek Policy development experience Deep expertise in Duck Creek Author, Product Stu
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Posted 32 days ago | Updated 17 days ago

Senior Software Apps Engineer, iOS-Remote

Generis TEK Inc.

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Remote

Contract

We have Contract role Senior Software Apps Engineer, iOS-Remote for our client at New York NY. Please let me know if you or any of your friends would be interested in this position. Position Details: Senior Software Apps Engineer, iOS-Remote-New York NY Location : REMOTE (EST & PST) Project Duration : 12+ Months Contract Pay Rate : $ 95.00 100.00/hr. on W2 Overview of the team: The team is responsible for the infrastructure of the Yahoo Mail iOS mobile application. We establish best practices f
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Posted 7 days ago | Updated 2 days ago

Senior .NET Java Software Engineer

Request Technology, LLC

•

Oak Brook, Illinois, USA

Full-time

We are unable to sponsor for this permanent, full-time role Position is bonus eligible Prestigious Enterprise Company is currently seeking a Senior Software Engineer with both .NET and Java experience. Candidate will play a key part in designing, developing, and optimizing a connected product ecosystem, working on cutting-edge IoT solutions, cloud services, and mobile applications. You will collaborate closely with cross-functional teams to build high-performance, scalable, and secure software s
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Posted 60+ days ago | Updated 31 days ago

: Senior Staff Software Engineer

Vaco by Highspring

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Remote

Full-time

Job Title:Senior Staff Software Engineer Location:100% Remote Employment Type:Direct Hire Compensation:$140,000 - $175,000 Base + 10%-15% Bonus Benefits:401K Matching, Full Benefits & PTO ImportantNote: No third-party companies - direct applicants only. Sponsorship is not available now or in the future. Job Summary We seek aSenior Staff Software Engineerwith strong AWS cloud engineering expertise to lead and mentor a high-performing software development team. This role is an even split between t
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Posted 24 days ago

Senior ServiceNow Developer (Remote)

Oscar Technology

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Remote

Contract

Job Title: Senior ServiceNow Developer (Remote, Cleared) Job Type: 12-Month Contract Location: 100% Remote (Must be available to work EST hours) Start Date: ASAP Compensation: Up to $70/hr W2 or $75/hr C2C Overview: We are currently seeking an experienced Senior ServiceNow Developer to support a long-term project. This fully remote opportunity requires a candidate with strong technical expertise across multiple ServiceNow modules and an active U.S. government security clearance. Key Responsib
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Posted 8 days ago | Updated 9 hours ago

Senior Embedded Software Engineer

ISCO International LLC

•

Schaumburg, Illinois, USA

Full-time

Position Description ISCO is looking for a Senior Embedded Software Engineer to help architect, develop and implement ISCO's new telecommunications products. This role has a wide scope that may include implementation of DSP algorithms, development of drivers and APIs, design of O&M functions, and even support of automated test development efforts. This role requires a Senior level Software Engineer with a broad range of skills, innovative spirit and desire to work in a fast-paced, entrepreneuri
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Posted 5 hours ago