C# Developer jobs in Illinois

C#/Duck Creek Developer (Field Engineer)

Remote or Hybrid

•

Today

Precision is seeking THREE (3) Duck Creek/C# Developers for a contract position with our Fortune 100 client. This fully remote role supports software applications and platform enhancements using Duck Creek Policy, C# .NET, Kafka, and API development. You will analyze requirements, create programming specifications, develop and test code, support production applications, and maintain technical documentation. The role requires strong troubleshooting, problem-solving, organization, and communicatio

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Contract

DOE

Senior GenTax Developer - C#/PostgreSQL - REMOTE

Remote

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12d ago

Job Description: No Corp to Corp, Only W2/ 1099 Resumes will be considered Work Location: 100% Remote (Manager is willing to consider candidates in Eastern, Central, Mountain, and Pacific Time Zones) The candidate will be responsible for analysis, design, coding, testing, and documentation. The candidate will code enhancements and develop required fixes to production problems using the functional and technical programming standards of the GenTax system. The tool set will include C#, PostgreSQL,

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Contract

Depends on Experience

C#.NET Developer with Trading And Capital Market Exp

Remote

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3d ago

JOB DESCRIPTION: Please apply only if you have Investment banking/Capital market experience. Role: C#.NET Developer with investment banking and Capital Market exp.Location: NY(Remote)Job Type: W2 / Fulltime Client is looking for a reliable full stack Dot Net developer ASAP.Wealth Management & Capital Market (Trading, Equities, Portfolio) Exp. Must.SQL, C#, .NET, Full stack developer with 8+ years of experienceProficiency in C#, .NET framework, and object-oriented programming principles.Experienc

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Full-time

Depends on Experience

Sr. C# .Net Developer with COBOL

Remote or Hybrid

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2d ago

Remote Only W2 - No Corp to Corp C#.NET and able to understand the COBOL programming for a short-term duration of 3 to 6 months

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Contract

.NET/C# Engineer

Chicago, Illinois

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9d ago

Job Title: .NET Engineer Location: Chicago, IL/4x a week onsite Duration: 12 Months Contract Brief/Additional Information: Client: Financial and Investment Domain Technical Skills: Strong .NET and C# developer with SQL Server back-end Experience Python Strong knowledge of asset management domain and investment data

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Contract

Depends on Experience

Mainframe Developer with C#

Remote

•

Today

Hiring, Greetings from Modern Agile Technologies. Position: Mainframe Developer with C# Location: Remote (Fine to work in AZ time zone) Type: Contract Position: Mainframe Developer (C#/.NET) Required Skills: Strong experience in Mainframe technologies (COBOL, JCL, CICS, DB2, VSAM).Hands-on experience in C#/.NET development.Experience with SQL Server and database design.Knowledge of mainframe modernization, integration, and API development.Health care knowledge (preferred)

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Contract

Depends on Experience

.NET/C# web developer - Local to CA

Remote

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5d ago

.NET/C# web development Client is in California Remote in the USA 8 to 12 months. Position requires evidence of 5+ years SQL Server, 5+ years .NET/C# web development, 3+ years Azure, 5+ years data modeling/database design, 3+ years Microsoft Access, 5+ years requirements gathering, 5+ years project management and 5+ years testing medium/large applications. Please send me our strongest resumes that collectively demonstrate all eight requirements, particularly Microsoft Access and Azure. Also id

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Full-time

Depends on Experience

AI Platform Engineer

Remote

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3d ago

Platform Engineer Agentic AI & Developer Platforms We are seeking an experienced Platform Engineer to join a high impact engineering team focused on building next generation AI powered developer platforms. This role will play a critical part in designing, developing, and operationalizing internal AI agent platforms, MCP servers, automation frameworks, and developer tooling that enable engineering teams to build and deploy software more effectively. The ideal candidate brings hands on experience

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Contract

Depends on Experience

Software Developer (Mid-Level)

South Holland, Illinois

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5d ago

A client of Innova Solutions is immediately hiring for a Software Developer Position type: Full-time, contract Duration: 6 months Location: Holland Illinois 60473 About the Role: We're looking for a dynamic Software Developer who thrives at the intersection of software engineering, analytics, and digital transformation. In this role, you'll play a key part in modernizing the technology ecosystem that powers laboratory quality services, technical governance, customer programs, and operational e

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Contract

Depends on Experience

Angular Developer

Remote or Hybrid in Charlotte, North Carolina

•

Today

Job Title: Angular Developer Industry: Manufacturing Location: Remote (Eastern or Central time zone) Shift: Monday through Friday, 8:00 AM to 5:00 PM, no overtime anticipated Interview Process: One hour panel video interview. Candidate interviews will be recorded as part of the client's standard screening process. Some onsite travel to a North Carolina facility may be required within the first two weeks of starting for training. Client Overview This opportunity is with a large global manuf

Contract

$69.50

Full Stack Developer - .Net/Angular/React

Villa Park, Illinois

•

Today

job summary: The Software Engineer should be experienced in leading software projects and will be responsible for coordination of all activities of the software development team. Interested candidates should be proficient in working on all phases of the project including detailed design, coding, and testing. Experienced in developing enterprise level application and custom integration solutions including major enhancements for interfaces, functions, and features. Provides expertise regardin

Full-time

USD100,000 - USD125,000

Salesforce (IT Application Development - Journey)

Remote or Olympia, Washington

•

Today

Salary : $85,800.00 - $115,416.00 Annually Location : Thurston County - Olympia, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-3274-06257 Department: Liquor and Cannabis Board Division: Information Technology Services Opening Date: 07/31/2026 Description WSLCB Vision Safe communities for Washington State. Mission Promote public safety, public health, and trust through fair administration, education and enforcement of liquor, tobacco, cannabis and vapor la

Full-time

USD 85,800.00 - 115,416.00 per year

.NET Developers

Remote

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4d ago

Arthur Lawrence is looking for a .NET Developers, one of our clients. This is a remote opportunity, please find the job description below and send us your updated resume if interested: Must-Have Skills:Experience in full-stack development using C#, .NET Core, and ASP.NET Core. Strong experience building RESTful APIs and microservices-based architectures. Front-end development experience with React or Angular, along with Azure SQL Server and Microsoft Azure services. Nice to Have Skills: Exper

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Contract, Third Party

Depends on Experience

Mainframe with C#

Remote

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3d ago

Role :- Mainframe Consultant with .Net C# Location: | Remote Contract OpportunityLooking for a strong Mainframe Developer with:Hands-on C# coding experience Strong Mainframe experience Excellent communication skills Ability to work independently in a remote environment

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Contract, Third Party

Depends on Experience

.Net Developer

Remote

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9d ago

BDR Solutions, LLC, (BDR)supports the U.S. Federal Government in successfully achieving its mission and goals. Our service and solution delivery starts with understanding each client's end-state, and then seamlessly integrating within each Agency's organization to improve and enhance business and technical operations and deployments. BDRis seeking a.NET Developerto join our growing team! This position will be performed virtually from the individual's home office working on EST time schedule.This

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Full-time

60000 - 80000

Senior Engineer: Cloud Infrastructure

Remote

•

Today

At Jack Henry, we're more than a technology company, we're a force for good in financial services. We're redefining how community banks and credit unions connect with the people they serve. Our mission is rooted in people inspired innovation, empowering financial institutions to deliver seamless, secure, and human centered experiences. We deliver cutting-edge solutions that are paving the way for the next generation of digital banking and payments, but our true impact begins with our associates.

Full-time

Software Engineer (SQL/C#)

Remote or Schenectady, New York

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27d ago

LTI (Logic Technology, Inc.) the "Pro People" company is a privately held technology solutions provider that offers best in class services to local, national and global organizations. Now after three decades, these initials have come to represent more than just our company name. They've also come to represent our hard earned reputation for Leadership, Technology and Integrity. At LTI, we believe confident, motivated employees produce superior work, ensuring our existing client relationships cont

Full-time

.Net Software Developer :: Remote

Remote or New Jersey

•

Today

.Net Developer/.Net Software Developer California, MD, US Remote, but in office on occasion or as needed Fulltime-- This software developer analyzes, designs and develops computer software required to support hardware or technical service products. Performs systems modeling, simulation and analysis. Reviews system architecture, selects, and implements appropriate development and support tools to ensure product performance. The products are components of the military aviation mission planning e

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Full-time

Senior .NET Developer

Remote or Hybrid in Vienna, Virginia

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19d ago

ITCON Services is seeking a highly experienced Senior Developer for a contingent position to provide operations, maintenance, and modernization of system that includes user forms, the entry, validation, certification, approval, and posting of data and centralized data warehouse to support reporting of program information. The Senior Developer will design, develop, enhance, deploy, and maintain Microsoft-based web applications, data integrations, databases, and reports using C#, ASP.NET/.NET, S

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Full-time

130,000 - 140,000

Software Engineer III: Backend C#

Remote

•

Today

Jack Henry, provides advanced bill payment and money transfer solutions to banks and credit unions. We offer modernized smart technology, including AI driven, security, cloud-based software, and fraud monitor, to deliver engaging payment solutions to customers. Our solutions help financial institutions to meet the payment expectations of today and the payment innovation needs of tomorrow. Payments become smarter, engaging, and predictive with Payrailz. We are looking for a software engineer who

Full-time

C# Developer jobs in Illinois, USA