OOP jobs in Illinois

ATLAS Application Developer (IT Application Development - Journey)

Remote or Tumwater, Washington

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Today

Salary: $7,150.00 - $9,618.00 Monthly Location : Thurston County - Tumwater, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-169 Department: Dept. of Revenue Division: Information Services Opening Date: 10/05/2026 Closing Date: 10/18/2026 11:59 PM Pacific Description The Information Services Application Development Section, within our Information Services division, is a team made of developers who are passionate about continuous improvement and who actively

Full-time

USD 7,150.00 - 9,618.00 per month

Backend Software Developer

Remote

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Today

Description & Requirements The Software Developer (Backend) provides subject matter proficiency for our USAF mission. This role is responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Shall perform engineering tasks for back-end design and development efforts including, but not limited to, developing back-end architectures to support current and new system capabilities and integrations, RESTful API development and modifi

Full-time

USD 120,000.00 per year

AEM Technical Architect

Remote

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2d ago

Position: Lead AEM Technical Architect Remote Longterm Contract Skills: 5-10 years experience in the Web and/or ECMS technologies3+ years of direct client consulting experienceExcellent verbal and written communication skills as well as customer relationship building skills.Articulate technical solutions and how they can solve client business problems to both technical and non-technical audiences.Adapt to and work effectively with a variety of clients and in complicated situations, employing st

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Contract, Third Party

Depends on Experience

Software Engineer

Hammond, Illinois

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Today

Location: Hammond, IL Salary: $70,000.00 USD Annually - $120,000.00 USD Annually Description: Manufacturing Systems Software Engineer - U.S Citizen OR Join a small engineering team developing and supporting high-availability software systems used in steel mills, scrap yards, docks, and furnace operations throughout North America. Our team operates from our offices in Northwest Indiana approximately 25 miles from downtown Chicago, Illinois. Close proximity or relocation to this area is a requir

Contract

USD 70,000.00 - 120,000.00 per year

Technical Analyst - IntelliScript (Remote)

Remote or Brookfield, Wisconsin

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Today

What We Do Milliman IntelliScript is a group of a few hundred experts in fields ranging from actuarial science to information technology to clinical practice. Together, we develop and deploy category-defining, data-driven, software-as-a-service (SaaS) products for a broad spectrum of insurance, health IT and life sciences clients. We are a business unit within Milliman, Inc., a respected consultancy with offices around the world. IntelliScript attracts top candidates with its innovative, collabo

Full-time

USD 65,200.00 - 131,905.00 per year

Senior Remote Sensing Software Engineer

Remote or Aurora, Colorado

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Today

Job Number: R0250625 Remote Sensing Software Engineer, Senior The Opportunity: As a senior Remote Sensing Software Engineer, you will architect advanced SDA and remote sensing exploitation pipelines, guide technical direction, and lead multi-disciplinary teams building high-fidelity space observation analytics. You will shape next-generation tools that integrate imaging physics, ML-based behavior inference, and multi-sensor fusion. You'll join a collaborative technical delivery team where you'

Full-time

USD 86,900.00 - 198,000.00 per year

Senior Java / A.I Engineer / Bedford Park, IL / On-Site

Bedford Park, Illinois

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Today

Join a growing and financially stable insurance organization as a Senior Software Developer in Bedford Park, IL. This is a full-time, onsite opportunity offering the chance to build and enhance business-critical applications using a modern technology stack including C#, Java, React, Git, CI/CD, and AI-assisted development tools. You'll play a key role in designing scalable software solutions while helping shape the future of technology within the organization. What makes this opportunity stand o

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Full-time

$140000 - $170000

Senior Embedded Software Engineer

Hybrid in Niles, Illinois

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2d ago

Senior Embedded Software Engineer Niles, IL Hybrid Contract Responsibilities Design, develop and test embedded software and associated components that are part of a software and hardware system for audio products. Development will emphasize Linux platforms and can include leveraging Yocto tool suite, hardware drivers, embedded software applications, audio and control networking and other networking protocols and related areas using C++ and C as the primary programming languages. Work as part of

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Contract

Depends on Experience

Lead SAP ABAP Developer

Franklin Park, Illinois

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Today

Lead SAP ABAP Developer Salary: $120k-$140k Job Summary We are seeking an experienced Senior SAP ABAP Developer to design, develop, and support custom SAP solutions across multiple functional areas. The ideal candidate will bring strong hands-on ABAP development expertise, with functional exposure to one or more business areas such as Supply Chain, Sales & Distribution (SD), HR, and Finance. This role requires a strong command of core ABAP development tools (SAPscripts/Smartforms, Workflow) as w

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Full-time

USD 120000-140000

Senior Software Engineer / Contract / Hybrid in Chicago Suburbs

Chicago, Illinois

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Today

Software company looking to bring on a Senior Software Engineer. You'll be key to driving modernization and growth by developing technical solutions that enhance business operations. You will play an impactful part in modernizing legacy systems, transitioning from VB.NET to C#, and evolving web platforms from ASP.NET to Blazor. You'll also contribute to the ongoing development and improvement of the company's ERP system. This is a 6-month contract position with potential for extension or convers

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Contract

$60 - $70

Engineering Manager

Remote or Almont, Colorado

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Today

Description: Remote Our client seeks an Engineering Manager to provide hands-on technical leadership and deliver production-grade solutions on Azure using microservices and the .NET stack. The role embeds DevSecOps and compliance by default, champions AI-assisted engineering practices, and collaborates across architecture, security, application, infrastructure, and customer service teams. The Engineering Manager leads roadmap execution, ensures quality and readiness, and partners with stakehol

Full-time

USD 145,000.00 - 185,000.00 per year

Principal Software Engineer, Core Pricing

Remote

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Today

About Upstart At Upstart, we're united by a mission that matters: to radically reduce the cost and complexity of borrowing for all Americans. Every day, we bring creativity, experimentation, and advanced AI to reshape access to credit, helping millions move forward financially with clarity and confidence. As the leading AI lending marketplace, we partner with banks and credit unions to expand access to affordable credit through technology that's both radically intelligent and deeply human. Our

Full-time

USD 195,300.00 - 270,400.00 per year

Java Engineer / AI Tooling / InsurTech / Bedford Park, IL

Bedford Park, Illinois

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Today

An established insurance organization located in the Chicago area is seeking a Senior Software Developer to join its growing technology team. This full-time position offers the opportunity to work on modern software solutions supporting a large-scale insurance platform while utilizing technologies including Java, C#, cloud-based architectures, microservices, and AI-assisted development tools. This opportunity stands out because the organization is actively investing in AI-driven engineering prac

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Full-time

$150000 - $160000

Lead AI Engineer - TCO Agent Platform

Remote

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Today

As the Lead AI Engineer for our next-generation TCO Agent Platform, you will serve as the technical lead and multi-agent system architect for a greenfield, proactive FinOps AI platform. You will oversee the development, orchestration, and governance of an ecosystem comprising 8 specialized AI agents (e.g., Commitment Optimization, Financial Operations, Resource Optimization, Anomaly Detection) running within a multi-cloud Google Cloud Platform/AWS environment. You will drive core architectural e

Full-time

Lead AI Engineer - TCO Agent Platform

Remote or New York, New York

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Today

Full-time

Senior Software Engineer / Hybrid in South Suburbs of Chicago / .NET

Bedford Park, Illinois

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Today

A fast-growing insurance and financial services organization is seeking a Senior Software Developer to join its technology team. This full-time position offers the opportunity to build modern enterprise software solutions using C#, .NET, React, cloud technologies, and AI-assisted development platforms. The organization is investing heavily in technology modernization and seeks experienced engineers who enjoy solving complex business challenges while taking ownership of technical initiatives from

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Full-time

$120000 - $140000

Senior / Lead .NET Software Engineer

Lisle, Illinois

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30+d ago

Our client is seeking a highly experienced and motivated Senior / Lead .NET Software Engineer to join their development team. The ideal candidate will have strong full-stack development experience with ReactJS and .NET technologies, along with expertise in modernizing legacy applications and supporting Agile development environments. Responsibilities & Qualifications .NET Development Minimum 6+ years of development experience with ASP.NET / .NET Core using C# (and/or VB.NET) in Visual Studio IDE

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Contract

$43 - $47

RoR Developer

Remote

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16d ago

10+ years of experience in Ruby on Rails developmentStrong knowledge of Ruby, Rails 6.x/7.x/8.xExperience in REST APIs development and integrationStrong understanding of Object-Oriented Programming (OOP) conceptsExperience with PostgreSQL, MySQL, or other relational databasesHands-on experience with Git/GitHubExperience with RSpec, Minitest, or similar testing frameworksStrong debugging and performance tuning skills

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Contract, Third Party

Depends on Experience

Junior/Mid-level/Lead - Infrastructure Engineer Automation in Chicago, IL - LOCAL (Onsite)

Illinois

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2d ago

Infrastructure Automation Engineer Location: Chicago, IL Job Description: Strong hands-on experience in Python and PowerShell scripting for IT infrastructure and process automation. Proficiency in Python OOP, REST API integration, JSON/XML processing, error handling, and logging. Experience with Python libraries such as Requests, Pandas, Paramiko, and PyYAML. Advanced PowerShell scripting for Windows Server, Active Directory, scheduled jobs, system monitoring, and reporting. Ability to design,

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Contract, Third Party

$DOE

Data Architect - W2 Only

Remote

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3d ago

Role : Data Architect Duration : 4+ Months Work Location: Remote Manage shared information and data model of project solution Develop conceptual data model and conceptual data flow for project and secure approval among architecture peers Review and assist in development of resource plans and estimates for data related components of solution Ensure that application data models and integration designs are consistent with the approved models and conceptual data flows Provide leadership to projects

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Contract

Depends on Experience

OOP jobs in Illinois, USA