c# Jobs in Illinois

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Staff Product Security Engineer

M&T BANK CORPORATION

Remote

Full-time

Overview: As the Lead Product Security Engineer at M&T Bank, you will support and participate in the building and implementation of software security controls in all stages of the product development life cycle. This role will offer you the opportunity to be involved with a wide range of responsibilities in transforming the software security culture and technologies. We are looking for a highly motivated, talented, and hands-on engineer who will be responsible for identifying and mitigating sof

Senior Manager - IT Application Development Fuel Management

United Airlines

Chicago, Illinois, USA

Full-time

Description Find your future at United! We're reinventing what our industry looks like, and what an airline can be - from the planes we fly to the people who fly them. When you join us, you're joining a global team of 100,000+ connected by a shared passion with a wide spectrum of experience and skills to lead the way forward. Achieving our ambitions starts with supporting yours. Evolve your career and find your next opportunity. Get the care you need with industry-leading health plans and best-i

Associate Director, Systems Integration Developer

Mass General Brigham

Remote or Somerville, Massachusetts, USA

Full-time

Site: The Brigham and Women's Hospital, Inc. Mass General Brigham relies on a wide range of professionals, including doctors, nurses, business people, tech experts, researchers, and systems analysts to advance our mission. As a not-for-profit, we support patient care, research, teaching, and community service, striving to provide exceptional care. We believe that high-performing teams drive groundbreaking medical discoveries and invite all applicants to join us and experience what it means to b

Senior Software Engineer

SNI Technology

Elkhart, Illinois, USA

Contract

Job Details SNI Technology's top client is seeking to hire a talented Sr Software Engineer for an exciting full-time, Contract to Hire opportunity! This is a onsite opportunity. This position is not open to C2C or non-US permanent residents. JOB DESCRIPTION In this role, your key responsibilities will include administering, governing and executing all aspects of the software development lifecycle. Additionally, you will be designing, developing, testing, and maintaining globally deployed manu

Enterprise Architect (IT)

DaVita Inc.

Remote or Denver, Colorado, USA

Full-time

Posting Date 05/13/2025 2000 16th St, Denver, Colorado, 80202-5117, United States of America Position Description This role is part of the Enterprise architecture team which plays an integral role in building a holistic view and roadmap of the Company's technology strategy and process. An Enterprise Architect is an enterprise-wide expert with broad technical skills, deep industry knowledge, and unparalleled business acumen. The Enterprise Architect supports IT in developing value propositions

Lead Data Engineer - Big Data

S&P Consultants

Nevada, USA

Full-time

About the Role: Grade Level (for internal use): 12 About the Role: Title: Lead Data Engineer - Big Data The Team: You will be an expert contributor and part of the Rating Organization's Ingestion Pipelines Engineering Team. This team, who has a broad and expert knowledge on Ratings organization's critical data domains, technology stacks and architectural patterns, fosters knowledge sharing and collaboration that results in a unified strategy. All Data Services team members provide leadership

Hedge Fund Software C# FIX/Order Management Software Engineer

Case Interactive

Remote

Full-time

Senior Software Developer COMPANY Fund Solutions COMPANY is a Fin Tech company headquartered in New York, with offices also in Belfast, Shanghai, and Sydney. COMPANY develops financial software and provides product integration and implementation services for asset managers. COMPANYs products are used by portfolio managers, traders, research analysts, risk managers, accountants and operations. We look for people with a passion for finance and an understanding of how to use technology to solve bu

Software Engineer - Machine Controls

ESPO Engineering Corp

Chicago, Illinois, USA

Full-time

SOFTWARE ENGINEER - MACHINE CONTROLSLocation: Chicago, IL (Midway Area) Job Type: Permanent / Full-Time Our client, a leading provider of welding technology, is currently hiring a software engineer for machine tool Control to join their team in Chicago, IL.The Software Engineer will assist in planning and coordinating all activities related to the software requirements of their welding systems.RESPONSIBILITIES Maintaining, supporting, and upgrading existing systems and applications Communicatin

Sr. Blockchain Engineer

ConsultNet, LLC

Remote or South Jordan, Utah, USA

Full-time

Senior BlockChain Developer Remote - USA Long term contract Pay: DOE We are seeking an experienced Blockchain Engineer. The ideal candidate will have experience working with Blockchain and Ethereum, including experience in Go, C# and other OOP languages. As a Blockchain Engineer, you will primarily work on blockchain-related projects, Designing and implement Smart Contracts using Solidity.Additionally you may also be tasked to work on back-end micro services using Go, .Net and SQL as needed.

.NET/ Web Developer

Resource 1

Chicago, Illinois, USA

Contract

Resource 1 is seeking a.NET/ Web Developerfor a 6+ month hybrid remote contract position in the Chicago area. Individual should have at least 5 years of full life-cycle application development, including design, analysis, coding, and testing. Individual will join a team of .NET/ Web Developers responsible for the development of new and enhancement of existing web applications. Most of the programming will be tied to the move toC#, ASP.NET MVC, .NET Coreand Angular. Individual should have solid e

Semantic Web Engineer

Keypixel Software Solutions

Remote

Third Party, Contract

Semantic Web Engineer Remote Responsibilities: - 5+ years of hands-on experience in semantic web or knowledge graph engineering, including leading complex projects.Proven experience with graph databases or triple stores such as Amazon Neptune, Neo4j, Virtuoso, or GraphDB. (Amazon Neptune preferred)Strong proficiency in Python; familiarity with other languages (e.g., Java, C#, JavaScript, Clojure) is a plus.Practical experience with RDF, OWL, SPARQL, and ideally SHACL.Experience with relational d

Loan IQ QA Automation

Nexo Global Inc.

Remote

Full-time

Loan IQ QA Automation Wilmington, DE or Buffalo, NY Onsite Need : 8-12 Years JD: Automation Selenium C# Design and develop automated test scripts using Selenium with C#. Should have Loan IQ experience. Execute automated tests and analyse results to ensure product quality Collaborate with developers and product owners to identify, prioritise and resolve defects Maintain and enhance existing automation framework to ensure maximum efficiency Participate in code reviews to ensure automation cod

Senior Project Engineer (CIMPLICITY)

HyreU

Remote

Contract, Third Party

Overview/Essential Responsibilities Assist the project Architect to translate requirements/user stories into technical designs. Develop CIMPLICITY Tracker application based on designs. This will include CIMPLICITY and Tracker configuration along with custom development of VBA scripts, SQL stored procedures and possibly C# applications Primary Skillset (Must haves): 5+ years of experience with CIMPLICITY configuration, CIMPLICITY scripting(VBA), SQL stored procedure development. Strong communicat

.Net Developer- W2 contract role

eTek IT Services, Inc.

Remote

Contract

.Net Developer remote role long term contract Frontend: Strong experience with Angular, RxJs and NgRx, including reactive forms and component-driven architecture.Backend: Solid command of C#/.NET, with an understanding of modern API development patterns.Testing Mindset: Comfort with unit testing for both frontend and backend components.Experience navigating large-scale internal systems and modular codebases.Bonus: Familiarity with Nx monorepos is a plus, but not required.

APIGEE Developer

Connexions Data Inc

Remote or Heredia Province, Costa Rica

Contract

We're looking for an experienced API Developer with expertise in Apigee API proxy development and EHR integration 3+ years of API development experience, including 1 2 years with Apigee Strong knowledge of RESTFul API, FHIR Proficiency in Java/C# & JavaScript Experienced with OpenAPI/Swagger, OAuth 2.0, and API security best practices Experience with cloud platforms (AWS preferred)

React Developer

Stellar IT Solutions

Remote or Ann Arbor, Michigan, USA

Full-time, Part-time, Contract, Third Party

Job Title: React Developer Location: Remote Job Duration: 6+ Months Interview: Video Job Description: We are seeking a Mid to Senior-Level React Developer to support a legacy application modernization project. The role involves rewriting components of an existing WebForms application into a modern tech stack using React with TypeScript and a .NET Core API. The ideal candidate will be comfortable navigating legacy code and helping transition to the new architecture, with a strong focus on fro

.Net Developer ( Senior Developer) - ONLY W2

Radus Tek Services

Remote

Contract

Senior .NET developer Webforms, .NET C#, Java Script/jQuery - To work on huge enterprise websites & many .NET backend systems - Very strong UI development experience is mustStrong Oracle PL/SQL development experience - Need very good experience with PL/SQL development as the engineer need to deal with hundreds of stored procedures and packages and candidate must be capable of writing high-quality performant PL/SQL codeMost of the engineers with these skills should be working on these technolog

Energy pricing management Analyst (crud operations)

Talent Groups

Norridge, Illinois, USA

Third Party, Contract

Experience in leading customer or Partner implementation activities in PROS.Over 7+ years of experience configuring (or doing Business Analysis on) solutions on large-scale pricing, CRM (Salesforce, MS Dynamics), CPQ or ERP implementations.In-depth knowledge in at least one of the following areas: SQL/PL-SQL/T-SQL and relational databases (Oracle, SQL Server). Web development (e.g. CSS/HTML/JavaScript); Any programming language e.g., Java, C++/C#, Python, etc.Exposure to webservices/interfaces (

Full Stack .NET Developer

Oscar Technology

Remote

Full-time

Position: .NET Developer - Real-Time Systems | Up to $135,000 | On-Site - Dallas, TX The Role: We're looking for an experienced .NET Developer to join our client's on-site engineering team in Dallas/Irving, TX. In this role, you'll design, develop, and maintain high-performance applications focused on real-time data processing and control systems. Leveraging technologies such as .NET Core, C#, Blazor, Azure, and SQL, you'll collaborate closely with engineers and product teams to build scalable

Software Developer

Data Wave Technologies Inc

Deerfield, Illinois, USA

Contract

Job Title: Software Developer Location: Deerfield, IL (Hybrid - 3 days/week onsite) Duration: Long term Tax Term: W2 Job Responsibilities: Key Technology: Java, SQL/NoSQL database, Azure, UI, Kubernetes Skills and Experience Required: Required: 8+ years in backend, full-stack, or cloud-based software engineering Backend development experience with Java 11 and Spring Boot 2.6.15 Frontend development skills with Angular 9 and TypeScript 3.8 Solid knowledge of system architecture, API design,