C# Jobs in Illinois

54 open C# jobs in Illinois at 24 companies, including Salesforce, Accenture and Capital One. Updated daily from company career pages.

Salesforce

Datorama is a marketing intelligence platform that transforms the way marketers optimize their marketing performance.

Accenture

Capital One

Capital One is a diversified banking company that offers early and later stage venture, and debt financing investments.

17 more open roles at Capital One

JP Morgan Chase

JP Morgan Chase is a global financial services provider that offers investment banking, asset management, treasury, and other services.

Jones Lang LaSalle

Jones Lang LaSalle, a financial and professional services firm, specializes in commercial real estate services and investment management.

Humana

Humana creates innovative solutions and resources that help people with their healthcare needs.

Invenergy

Invenergy is a privately-held developer, operator, and investor in clean energy solutions and services.

GCM Grosvenor

GCM Grosvenor is an investment management firm that specializes in hedge funds, private equity, real estate and infrastructure investments.

MongoDB

MongoDB is a next-generation database that helps businesses transform their industries by harnessing the power of data.

BlackRock

BlackRock is an investment company that offers its services to institutions, intermediaries, foundations, and individual investors.

CIBC

CIBC is a financial service company that offers business solutions.

Ripple

Ripple is a technology company that provides solutions for cross-border payments, crypto liquidity, and central bank digital currency.

Temporal Technologies

Temporal Technologies enables its users to build and operate resilient applications using developer-friendly primitives.

Karbon

Karbon is a workstream collaboration platform for growing teams and enterprises to combine emails, discussions, tasks, and workflows.

WESCO International

Wesco is a procurement specialists, helping customers lower supply chain costs and raise the efficiency of entire operations through a

Reply.io

Reply is the leading AI-powered sales engagement platform that automates multichannel touchpoints throughout the sales process.

AvePoint

AvePoint is a SaaS and data management platform provider, which helps to optimize SaaS operations and secure collaboration.

SageSure

SageSure is a managing general underwriter specializing in coastal residential and commercial property markets.

Ankura

Ankura Consulting Group is a business advisory and expert services firm.

DRW

DRW is a diversified trading firm that combines technology, research, and risk management to capture trading and investment opportunities.

Updated 2026-10-10.