IT Developer Jobs in Illinois

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Senior Staff IT Developer

Right Skale, Inc.

•

Illinois, USA

Third Party

The Staff/Senior Staff IT Developer (Application Security) will design and secure internal applications, conduct security code reviews, perform penetration testing, and collaborate with cross-functional teams in an Agile environment. Key Responsibilities: Design secure, scalable IT solutions focused on performance. Conduct security code reviews for quality and best practices. Identify and remediate vulnerabilities (e.g., XSS, SQLi, CSRF, SSRF). Perform web app penetration testing (manual/automa
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Posted 24 days ago | Updated 3 days ago

Information Technology - Full Stack Developer

The Fountain Group

•

Remote

Full-time, Contract

We are a national staffing firm and are currently seeking a Senior Full Stack Developer for a prominent client of ours. This position is Remote. Details of the position are as follows: Job Description: Pay $66 - $73.34/he to Start!! One - year assignment with a possibility for extension based on performance and budget. 8:00am - 5:00pm (Remote) Position is mainly responsible for implementing backend services, integrating systems, and building full-stack features using modern technologies. Posit
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Posted 9 days ago | Updated moments ago

Senior .Net Developer - Information Technology

United Airlines

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Chicago, Illinois, USA

Full-time

Description Job overview and responsibilities The Senior Software Developer will be responsible for the development of critical applications, while working with a team of developers. This role will design, develop, document, test and debug new and existing applications. Additionally, this role will build these applications with a focus on delivering cloud-based solutions. The individual will use groundbreaking technologies and enterprise grade integration software daily and will be relied upon t
Posted 16 days ago | Updated 7 hours ago

Shared Data Platforms - IT Lead Developer

Sherwin-Williams

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Remote or Cleveland, Ohio, USA

Full-time

Job Description The Shared Data Platforms Lead Application Developer role plays a strategic part in solutioning, architecting, designing, hands-on developing and leading the integration of their respective in-house applications, databases, and systems with third-party applications. They will use their extensive expertise in programming languages, tools, and delivery models, in conjunction with their methodology expertise to collaborate with various stakeholders and ensure the timely delivery of
Posted 60+ days ago | Updated 7 hours 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 7 hours ago

AWS Software Engineer (iGrid)

Pyramid Consulting, Inc.

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Remote

Contract

Immediate need for a talented AWS Software Engineer (iGrid). This is a 12+months contract opportunity with long-term potential and is located in Charlotte, NC (Remote). Please review the job description below and contact me ASAP if you are interested. Job ID: 25-79500 Pay Range: $75 - $90/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location). Key Responsibilities: Creates, maintains, and
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Posted 3 days ago

IT Project Senior Manager

Citi

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Remote or Tampa, Florida, USA

Full-time

Citibank, N.A. seeks an IT Project Senior Manager for its Tampa, FL location. Duties: Execute critical technology initiatives by delivering Anti-Money Laundering (AML) regulatory projects. Ensure the efficient design, development, and implementation of technology solutions. Liaise with business users and technology teams to review, document, and deliver functionality that both improves productivity and aligns with regulatory guidelines. Work closely with Global Engineering and Product Owners to
Posted 7 days ago | Updated 7 hours ago

LEAD Mainframe IT INFRASTRUCTURE ENGINEER

Ocean Blue Solution

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Remote or Pennsylvania, USA

Full-time

Job Description: Our company seeks a highly motivated Lead IT Infrastructure Engineer/Lead Mainframe Platform Engineer to lead the design, implementation, and maintenance of our critical mainframe systems. This role requires deep expertise in z/OS, DB2, IMS, CICS, MQ, and related technologies, and will involve leading complex projects, troubleshooting critical issues, and mentoring junior engineers. The successful candidate will drive platform improvements, ensure high availability and performan
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Posted 60+ days ago | Updated 12 hours ago

Splunk ITSI Engineer/ Splunk Cloud & ITSI Developer/ Senior Splunk ITSI Engineer/ Splunk Observability Engineer/ Splunk Solutions Engineer ITSI & Cloud

Orpine.com

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Remote

Contract, Third Party

Job Description: Requirements: 4 - 5+ years of Splunk experience.3 - 5+ years of Splunk IT Service Intelligence development experience mandatory. (ITSI)4 - 8 years of overall industry experience as a technology practitioner (in IT Operations or Security).Successful enterprise level implementation of Splunk Cloud a plus.Experience in requirements gathering around the Splunk tool, documenting requirements, requirement analysis, product testing, etc. Qualifications: Prior experience Splunk enterpr
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Posted 1 day ago

IT Engineer Senior

University of Kasnas

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Remote or Lawrence, Kansas, USA

Full-time

Job Description 40% - Innovate new services and solutionsAssists in researching and standardizing new technologies and end-user enhancements.Supports the implementation of new solutions to improve upon the web presence and any applications in development.Collaborates with the team to evaluate and implement ADA best practices for online technologies.Works with IT leadership to ensure information security best practices are implemented for online technologies.Engages in training to improve skill
Posted 8 days ago | Updated 7 hours ago

IT Security Engineer

The Doyle Group

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Remote or Denver, Colorado, USA

Full-time

IT Security Engineer The Doyle Group is a proven partner for Placement and Consulting services, headquartered in Denver, CO. Our core mission is to forge genuine partnerships with our clients who seek strategic talent solutions and to assist highly skilled candidates looking for their next career opportunity. With over 30 years of industry experience, our consultative approach allows us to provide a higher level of guidance and insight, empowering our clients to secure top IT talent that fits se
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Posted 5 days ago

IT Software Engineer

Tetra Computing

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Chicago, Illinois, USA

Contract

Job Title: IT Software Engineer 4 Location: Peoria or Chicago, IL (Hybrid 2x/week in office) Need local to Peoria / Chicago, IL. Duration: 12 Months (Possible extension) Key Requirements: Bachelor s in Computer Science/Electrical Engineering 12+ years experience (or) Master s + 8 years experience Strong backend development experience in Java (10+ years) Minimum 6 years of hands-on AWS experience (CloudFormation, ECS, Lambda, IAM, etc.) Experience with CI/CD pipelines (Jenkins, Azure DevOps) Soli
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Posted 5 days ago | Updated 5 days ago

IT Assistant Programmer

University of Kasnas

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Remote or Lawrence, Kansas, USA

Full-time

Job Description 35% - Software DevelopmentAssist in the development of web forms using programming languages such as JavaScript, XML, CSS, XSL, HTML, or other relevant technologies.Collaborate with senior developers to design, code, test, and deploy software solutions following established best practices.Participate in code reviews to ensure high-quality code and adherence to industry standards.30% - Testing and DebuggingSupport the testing and debugging of applications and web forms to identif
Posted 13 days ago | Updated 7 hours ago

Splunk ITSI Engineer-Offshore- India - Bngaluru based or Nearshore/Latin America

AptoNet Inc

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Remote

Contract

At Lilly, we unite caring with discovery to make life better for people around the world. We are a global healthcare leader headquartered in Indianapolis, Indiana. Our 35,000 employees around the world work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to our communities through philanthropy and volunteerism. We give our best effort to our work, and we put people first. We re looking for people who are det
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Posted 53 days ago | Updated moments ago

Lenel IT Engineer

Robert Half

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Remote or Rancho Cucamonga, California, USA

Full-time

Description We are looking for an experienced Lenel IT Engineer to join our Healthcare Division in Ontario, California. This role involves migrating access control systems to Lenel, programming video management systems, and designing VLAN networks. If you have a strong background in IT engineering and a passion for delivering high-quality solutions, we encourage you to apply. Responsibilities: Oversee the migration of access control systems to Lenel, ensuring seamless integration and functional
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Posted 10 days ago | Updated 4 hours ago

Sr Manager - IT Appl Dev

United Airlines

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Chicago, Illinois, USA

Full-time

Description As the Senior Manager of IT Application Development, your responsibilities will be to own Network Planning Tools and its supporting systems. Your role will involve driving the strategy for the automation & integration of the various Network Planning systems, focusing on performance, scalability, and security. You will lead the team in conceptualizing innovative ideas and bring them to life. The primary focus will be on utilizing cloud computation, AI and Machine Learning to implement
Posted 9 days ago | Updated 7 hours ago

Senior Systems / IT Operations Engineer I - Manufacturing

Walgreens

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Deerfield, Illinois, USA

Full-time

Job Description Job Summary: Work Location: Deerfield, IL / Chicago, IL / Bellevue, WA (this would be a hybrid work with four days weekly in-office) We're looking for a Senior Systems / IT Operations Engineer to play a pivotal role in maintaining, developing, and implementing strategic IT initiatives that directly impact our critical manufacturing operations across a large, multisite footprint. This role involves leading highly complex, strategic, and high-risk assignments with clear short-to-
Posted 8 days ago | Updated 7 hours ago

Sr. Full Stack Developer (100% Remote --on W2)

Synergy Technologies, LLC

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Remote

Contract

Job Title: Sr. Full Stack Developer Duration: Long Term Location : Jacksonville, FL. (100% remote) JOB SUMMARY: Sr. React Developers are responsible for the development, programming, and coding of Information Technology solutions using ReactJS, Redux, D3 and NodeJS to enable Client Customer Experience applications. Senior IT Developers are responsible for documenting detailed system specifications, participation in unit testing and maintenance of planned and unplanned internally developed app
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Posted 9 days ago

Senior IT Security Engineer (Hybrid Work Schedule)

Virginia Jobs

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Remote or Richmond, Virginia, USA

Full-time

Title: Senior IT Security Engineer (Hybrid Work Schedule) State Role Title: Salary Non-Specified Hiring Range: $121,581 - $155,000 Pay Band: UG Agency: Virginia Retirement System Location:Virginia Retirement System Agency Website:;br> Recruitment Type: General Public - G Job Duties Hybrid Work Schedule: this position will work onsite two days a week (Tuesday and Wednesday) and 3 days remotely (Monday, Thursday and Friday). VRS is seeking a highly skilled and experienced Senior IT Security Engi
Posted 60+ days ago | Updated 7 hours ago

Principal Engineer - IT Critical Infrastructure

United Airlines

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Arlington Heights, Illinois, USA

Full-time

Description Job overview and responsibilities The Principal Engineer is responsible for the design, testing, evaluation, implementation, and support of various platforms (hardware, operating systems, software, and systems tools). Provide consultation and direct technical support in life cycle planning, problem management, integration, and systems programming. Implement releases, upgrades, and/or changes into the environment. This position will define the IT provisioning, implementation, and sup
Posted 24 days ago | Updated 7 hours ago