Senior Software Developer Jobs in Chicago, IL

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Senior Machine Learning Engineer (Modeling), Risk

Block Inc

California, USA

Full-time

Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn't work together. So we expanded into software and started building integrated, omnichannel solutions - to help sellers sell online, manage inventory, offer buy now, pay later functionality, book appointments, engage loyal buyers, and hire and pay staff. Across i

Lead React Developer

Primetime Technologies Inc

Remote

Contract

REQUIRED 7+ years previous experience working as a React.js developer. 7+ years experience in React.js, HTML, CSS3. Vast experience in JavaScript and React concepts, advanced front-end coding skills, and an expert level understanding of progressive web applications. Extensive experience on front-end development and demonstrated ability to work in a fast-paced environment. Passion for supporting, collaborating, and coaching engineering teams. Comfortable driving code reviews and operating as an

Lead Java Engineer

EPAM Systems

Remote

Full-time

We are looking for a Lead Java Engineer to join our dynamic team. In this role, you'll focus on enhancing the product offering by improving the user experience and building the necessary capacity to support and advance platform solutions and infrastructure. If you're passionate about working with cutting-edge technologies and driving innovation, this is your chance to make a significant impact. This position offers remote setup with the flexibility to work from any location in Georgia, whether i

Performance Engineer

APEX IT Services

Remote

Contract

Job Title: Senior Performance Engineer Project Duration: Long-term W2-Contract Duration: Long-term Remote Job Description: Architectural: Directed performance testing and service virtualization for key initiatives, including Dotcom Vision, Customer 360, CCS, and Mosaic (MTX, ACODS, Integration Services).Service Virtualization: Designed and implemented virtualization stubs for WAPI, AIS, and DB2,accurately simulating production environments to streamline testing processes.Performance Testing Ma

Senior Logistics Engineer

SAIC

Remote

Full-time

Job ID: 2506971 Location: REMOTE WORK, CA, US Date Posted: 2025-06-24 Category: Logistics Subcategory: Logistics Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: Yes Description SAIC is looking for a Senior Logistics Engineer to perform system fault analysis, life cycle maintenance and integrated product support (IPS) of major PMW-160 systems, specifically Automated Digital Networ

Full Stack Java Developer - AVP - JERSEY CITY

Citi

Remote or Jersey City, New Jersey, USA

Full-time

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. Responsibilities: Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications de

Senior Graphics Engineer - NBA 2K

2K

Remote or Novato, California, USA

Full-time

At Visual Concepts, we believe great games are made by diverse and empowered teams with a shared passion for play. As one of the world's top game development studios, we have shipped over 100 multi-sku titles to critical acclaim and commercial success. Our teams are independent and entrepreneurial. Our studios in Novato, Irvine, Budapest, Shanghai, Austin, Boise, Seoul, and Parksville, Canada are committed to artistry and technical innovation, offering top candidates the opportunity to learn and

Senior IAM Engineer

K2 Partnering Solutions, Inc.

Remote

Contract

Our Client seeks a Senior IAM Engineer to fulfill a 6+ Months Contract position in Remote. This position calls for a seasoned professional with a robust background in security policy, risk management, and access control disciplines. The ideal candidate will possess a profound understanding of Identity and Access Management (IAM) concepts and demonstrate the ability to collaborate effectively with cross-functional teams. You will be entrusted with identifying and implementing solutions to enhanc

Lead Java Full stack Developer (W2 Position)

Anveta Inc

Chicago, Illinois, USA

Contract

Lead Java Full stack Developer (W2 Position) Location : Chicago, IL (Onsite) Duration : 6+ Months Job Description: Need 12 Years exp Lead Java full Stack Developer with experience in designing and developing distributed systems Must have experience on Azure Must have experience on ReactJS Experience working on and delivering large-scale, globally distributed systems, with application of Design Patterns, Test Driven Development and continuous integration etc. Must be able to work from Front end t

(Python Based) Lead Research Engineer

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Lead Research Engineer Do you love creating innovative solutions for customers? We are seeking a passionate Lead Research Engineer who will bring expertise in AI and ML and is interested in building data-driven capabilities that drive transformation. As a member of Thomson Reuters Labs you will have a direct impact on our company by helping to create new and innovative capabilities that will delight our customers. What does Thomson Reuters Labs do? We experiment, we build, we deliver. We suppor

Senior HVDC Application Engineer

GE Vernova

Remote

Full-time

Job Description Summary The Senior HVDC Application Engineer is a recognized leader within the engineering team, driving business strategy through deep technical expertise and market insight. This individual proactively partners with business leaders to deliver optimal customer solutions that align with both technical and commercial goals. Serving as the key technical authority during the entire Inquiry-to-Order (ITO) phase, the Senior HVDC Application Engineer ensures the business is well-posit

Salesforce Developer

Raas Infotek LLC

Remote or Lansing, Michigan, USA

Contract

Job Title: Salesforce Developer Job Type: W2 Experience: 12+ years required Job Description:We are seeking an experienced Salesforce Developer with strong hands-on expertise in Health Cloud and Salesforce platform development. The ideal candidate will be adept in designing, developing, and maintaining high-quality Salesforce applications and integrations, with a strong focus on healthcare-specific solutions. Key Responsibilities:Design, configure, and customize solutions using Salesforce Health

Senior Engineer, Structural Analysis (Hybrid-Puerto Rico)

RTX Corporation

Remote or Aguadilla, Aguadilla, Puerto Rico

Full-time

Date Posted: 2025-06-06 Country: United States of America Location: HPR01: Collins Puerto Rico- Aguadilla Road 110 North Km 28.8 San Antonio Industrial Park, Aguadilla, PR, 00603 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Joining Collins Aerospace isn't just about finding a job; it's about embarking on a journey to redefine the future of aerospace technology. Collins Aerospace, an RTX company, is a leader

AWS Engineer

Axiom Global Technologies, Inc.

Remote

Contract

We're looking for a talented and experienced Senior AWS Engineer to join our team. In this role, you'll be instrumental in designing, developing, and implementing robust and scalable backend solutions, with a strong focus on data processing, API development, and AWS cloud infrastructure. If you're passionate about building high-performance systems and have a solid understanding of modern cloud architectures, we encourage you to apply! Key Responsibilities: Design and develop data-driven solutio

Full Stack Java Developer

Yom Solutions LLC

Remote

Contract

Job Title: Full Stack Java Developer Location: Remote Duration: 12 Months Job Description: We are looking for an experienced Full Stack Developer with strong expertise in React.js, Micro Frontend architecture, and modern cloud-native technologies, especially within the AWS ecosystem. This role requires a hands-on engineer who can design, build, and maintain scalable, resilient, and modular web applications using a mix of frontend and backend technologies including Node.js or TypeScript, Python o

Senior Machine Learning Infrastructure Engineer - DGX Cloud

NVIDIA Corporation

Remote or Santa Clara, California, USA

Full-time

NVIDIA is hiring engineers to scale up its AI Infrastructure. We expect you to have a strong programming background, knowledge of datacenter hardware, operations, and networking, familiarity with software testing and deployment, familiarity with distributed systems, and excellent communication and planning abilities. We also welcome out-of-the-box thinkers who can provide new ideas with a strong execution bias. Expect to be constantly challenged, improving, and evolving for the better. You and o

Senior Frontend Engineer, Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Senior Frontend Engineer, Materia AI Thomson Reuters is looking for a skilled Senior Frontend Engineer to develop the next iteration of the user interface for our Materia AI product. Innovate in a Startup-Like Environment Be part of a fast-moving, forward-thinking group that is creating AI-driven software for accounting professionals. You'll work with top AI and software development experts, leveraging cutting-edge technology to build intelligent and scalable systems. This role is for the CoC

Senior Transmission Line Engineer 1 - Grid

Sargent & Lundy LLC.

Chicago, Illinois, USA

Full-time

Description This position allows for a hybrid work schedule with a mix of work spent in office and working remote from home. This position will offer you the ability to apply and expand your knowledge of transmission line engineering including, conductors, hardware, insulation, structures, foundations and electrical principles to: Design transmission lines in the 69kV to 500kV range. Responsibility for cost analyses, development of design criteria, routing and siting of transmission lines. Re

Field Service Engineer 1 - Northern VA and DC

GE Healthcare

Remote

Full-time

Job Description Summary The Field Engineer I performs on time and accurate Preventative Maintenance in one or more modalities of equipment. The FE1 is aware of and follows all Field Modification Instructions and/or Instrument Service Information bulletins. Works with experienced Field Engineers, both onsite and remotely, to learn troubleshooting, repair and equipment installation techniques. Responsible for driving customer satisfaction through Service Excellence. Job Description Responsibiliti

Manager, Engineering - Billing Platform

HashiCorp

Remote

Full-time

About the team The HashiCorp Cloud Platform team is the backbone of product delivery for HashiCorp Engineering. HCP is a customer-facing product that provides a unified experience for HashiCorp products being offered as cloud services. The Billing team builds a robust, compliant, and efficient HashiCorp billing system, emphasizing architectural excellence, precise metering, transparent and comprehensive reporting to drive customer satisfaction and business success. As a high-impact, high-visibi