api developer jobs in Chicago

Center 1 (19052), United States of America, McLean, VirginiaSenior Lead Engineer - Generative AI Product Engineering (Remote Eligible)Our mission at Capital One is to create trustworthy, reliable and human-in-the-loop AI systems, changing banking for good.  For years, Capital One has been leading the industry in using machine learning to  create real-time,...

Role: Senior API Engineer – Azure, Onsite in Chicago, IL - Contract Job Description:  Role OverviewWe are seeking a Senior API Engineer with strong hands-on experience designing, developing, securing, and deploying enterprise APIs on Microsoft Azure. The ideal candidate will have expertise in Azure API services, REST API development, cloud infrastructure,...

Title: AWS Data & AI Platform Engineer Location: Chicago, IL (hybrid) Job Description:Seeking an experienced AI Platform Engineer to build and operate secure, scalable AI platforms on AWS for regulated financial services environments. This role focuses on enabling generative AI and advanced analytics use cases while meeting high standards for security,...

Position Title : Lead JAVA AI Software EngineerJob Location:  Chicago, IL Work Model: HybridJob Duration: 12 MonthsRequired Education/Experience:Bachelor's and/or Master’s Degree in computer science, computer engineering or relevant field required w/ 10+years experience required.• Building Location: Peoria, IL and/or Chicago office ( Chicago...

A fast-growing technology company is building modern payment infrastructure designed to support global commerce. Its platform leverages stablecoins, advanced fraud detection powered by artificial intelligence, and real-time settlement to help businesses move money more efficiently. The solution offers capabilities such as instant settlement, protection...

Location: Chicago, IL Salary: $60.00 USD Hourly - $75.00 USD Hourly Description: Senior Middleware Messaging & Platform Engineer Job Overview We are seeking a highly skilled Senior Middleware Messaging & Platform Engineer to join our Infrastructure Engineering team. This role is responsible for the design, administration, automation, security, and...

A leading professional services organization in downtown Chicago is seeking a full-time Senior Financial Systems Engineer to join its technology team in a hybrid environment (3 days onsite, 2 remote). This position plays a critical role in supporting enterprise financial applications, system integrations, reporting, and data integrity initiatives. The...

Job Title: QA Automation TestingLocation: Chicago, IL, Minneapolis, MN, Detroit, MI, Madison, WI, Columbus, OH.Contract: 12+ MonthsLooking for W2 candidates. No C2CJob Summary:We are hiring a Software Development Engineer in Test (SDET) with strong experience in Java, Selenium, Playwright, API automation, and AI-assisted testing. The ideal candidate will...

TransUnion's Job Applicant Privacy Notice Personal Information We Collect Your Privacy Choices Team OverviewThe Technology Product Management (TPM) team supports TransUnion's Fraud Solutions portfolio and serves as the critical bridge between business strategy, product development, and engineering execution. The team is responsible for organizing,...

A rapidly growing financial technology organization in downtown Chicago is seeking a full-time Software Development Engineer in Test to support next-generation trading, market data, analytics, and risk management platforms. This position offers the opportunity to work with modern technologies including Python, C#, Playwright, Selenium, SQL, AI/ML tooling,...

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...

Role: Full Stack Architect AI & Agentic Systems We are seeking a highly experienced Full Stack Architect AI & Agentic Systems to lead the design and implementation of next-generation digital platforms powered by modern web technologies and AI-driven architectures. The ideal candidate will possess deep expertise in ReactJS, NextJS, NodeJS, .NET...

A technology services organization is seeking a Test Lead for a hybrid role based in Chicago, Illinois or Houston, Texas.About the Opportunity:Shift: Day shiftSchedule: Monday to Friday Hours: Standard businessSetting: Hybrid (at least 3 days per week)Locations: Chicago, Illinois or Houston, TexasResponsibilities:Lead day-to-day QA and test activities for...

OverviewAn established healthcare company is looking for a driven Python Engineer to join their growing team. They seek someone with experience with Python frameworks, RESTful APIs, and data handling. Candidates should plan to come into the office in Chicago 1-2x/week. This is a W2 Contract position with long-term potential.Location: Chicago, IL (onsite...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are...

TransUnion's Job Applicant Privacy Notice Personal Information We Collect Your Privacy Choices Team OverviewThe Core Online team is responsible for building and supporting global enterprise platforms that operate across multiple countries and cloud environments. The team develops highly scalable, secure, and resilient applications that support critical...

Data Engineer Chicago, IL / Remote / Hybrid / Detroit, MI Information Technology / Full Time Hybrid / Hybrid apply for this job Data Engineer  Employment Type: Full-Time, Mid-level Department: Business Intelligence CGS is seeking a passionate and driven Data Engineer to support a rapidly growing Data Analytics and Business Intelligence platform focused on...

Senior Specialist Software EngineerType: Full time/PermContact: Ashley at ajones@forbestc.comSpecial notes: This role is hybrid 3 days a week onsite in Downtown Chicago, IL.Responsibilities: The ideal candidate will help drive the development of our cloud based scalable architecture that powers our client’s instrument management, settlements engine and...

***We are unable to sponsor for this permanent full-time role******Position is bonus eligible***Prestigious Global Firm is currently seeking a Lead C# .Net Azure Software Engineer. Candidate will have expertise in building full-stack applications using React, .NET, Next.js, and Azure. This role will be responsible for leading technical development,...

NO SPONSORSHIP - NO OPTQuality Assurance Web & Automation EngineerSALARY: $60-80/hourLOCATION: Chicago, ILOnsite 2 days a week once hired, remote until hiredLocal candidates interested in a contract to hire down the roadDURATION: INDEFINITE w/ potential for fulltime conversionNeed someone with web application 90% (UI), user interface frontend experience with...