Senior Software Engineer Python React jobs in Addison

Senior Software Engineer, Python Programmer Fitch Ratings is currently seeking a Senior Software Engineer specializing in Python Programming or applications to join our team in Chicago. In this role, you will support the development and delivery of applications based on Python and AWS, Azure cloud p

Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health

Job Description We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the Commercial & Investment Bank - Technology team , you serve as a seasoned member of an agile team to design and

JPMorgan Chase

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the Commercial & Investment Bank - Technology team , you serve as a seasoned member of an agile team to design and deliver trusted

Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health

CME Group

€122,300 - €203,900 /year

Requirements Must have: - Over 8 years of experience in Core Java development - Strong focus on architecture and solution efficiencies - Ability to balance performance, capacity, and reliability with core system functionality - Skill in identifying opportunities for code optimization - Capable of pr

*Senior Python Software Engineer** We’re looking for a Senior Python Engineer to join a small, high-performing engineering team building production-quality software systems that power critical applications. This role is ideal for someone with a strong computer science background, a track record of d

Department: IT / Innovation Employment Type: Full‑time Role Overview We’re looking for a hands‑on Python engineer to build automations and system integrations that eliminate manual work and improve speed and accuracy across the business. This role is focused on practical software engineering, buildi

*An Introduction to Codal** Codal is an award-winning web design and development consultancy that helps enterprise organizations solve complex problems and accelerate growth through elegant, data-driven digital solutions. Our areas of expertise include application modernization, eCommerce, UX/UI des

Requirements Must have: - Proven proficiency in Java development, demonstrating expertise in building and maintaining high-availability systems. - Significant experience with Python, specifically in creating enterprise-grade tools within a Linux environment. - Strong understanding of both relational

***We are unable to sponsor as this is a permanent full-time role*** ***Hybrid, 3 days onsite, 2 days remote*** A prestigious company is looking for a Lead Software Engineer. This role will focus on building full stack applications using .Net, TypeScript, React/Next.js, Azure, etc. Responsibilities:

Role Frontend Developer-ReactJs Experience: Min 6 years Location: Naperville, IL (Client is looking for local candidate) Duration: Long term contract Only Local candidate who can go for F2F interview. Must Haves: Strong experience with React.js, JavaScript, HTML5, CSS3 Experience consuming APIs from

An Introduction to Codal Codal is an award-winning web design and development consultancy that helps enterprise organizations solve complex problems and accelerate growth through elegant, data-driven digital solutions. Our areas of expertise include application modernization, eCommerce, UX/UI design

Role: - Frontend Developer-ReactJs Experience: Min 6 years Location: Naperville, IL (Client is looking for local candidate) Duration: Long term contract Please start working on this role for Only Local candidate who can go for F2F interview. Must Haves: Strong experience with React.js, JavaScript, H

OLD MISSION

$12,500 - $18,750 /year

Old Mission is a global proprietary trading firm that leverages state-of-the-art technology and research to identify and execute profitable trading strategies across multiple asset classes around the world. Our offices in Chicago, New York, and London are all composed of naturally-curious individual

*DRW** is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and tradin

An Introduction to Codal Codal is an award-winning web design and development consultancy that helps enterprise organizations solve complex problems and accelerate growth through elegant, data-driven digital solutions. Our areas of expertise include application modernization, eCommerce, UX/UI design

Nokia

*Job Description** *Position:** Software Dev Intern *Number of Position(s):** 1 *Duration:** 10 Weeks *Date:** June 2026 to August 2026 *Location:** Naperville, IL - Hybrid *The team you'll be part of** You will be part of the Cloud Mobility Manager (CMM) within Nokia's CNS Division. The CMM deliver

Next Step Systems LTD

Software Engineer, Python, Chicago, IL This is a 100% onsite Software Engineer position and not open for Remote. - Need 2-5+ years of software development experience. - We are looking for 2+ years of Python experience. - Work with large data sets. - Experience with API integrations. - Design control

DocuSign

Overview Company Overview Docusign brings agreements to life. Over 1.5 million customers and more than a billion people in over 180 countries use Docusign solutions to accelerate the process of doing business and simplify people’s lives. With intelligent agreement management, Docusign unleashes busi