senior software developer Jobs in illinois

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Lead Software Engineer - Basking Ridge, NJ or Remote

UnitedHealth Group

Remote or Bernards, New Jersey, USA

Full-time

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health op

Lead Application Developer

Marsh & McLennan Companies

Remote or White Plains, New York, USA

Full-time

Company: Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a Lead Application Developer at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits, retirement, and

Applications Development Sr Programmer Analyst - AVP

Citi

Remote or Tampa, Florida, 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. Software Development & System Design: Design, develop, and maintain robust, scalable, and high-performance applications.Implement trun

Lead Software Engineer, AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Lead Software Engineer - AI, Westlaw We are seeking an experienced Lead Software Engineer to join our fast-moving, forward-thinking group that is creating AI-driven software for legal professionals, and our flagship product, Westlaw. You will be developing and implementing cutting-edge solutions using Python, REST APIs, AI technologies, and AWS cloud infrastructure. About the Role: In this role as a Lead Software Engineer - AI, you will: Innovate, implement and operationalize in a fast-paced E

Mainframe Developer

GNRSystems

Bloomington, Illinois, USA

Contract

We are seeking a highly experienced Mainframe Developer to join our team in a hybrid role based in Bloomington, Illinois. The ideal candidate will have strong experience in COBOL, JCL, DB2, and other mainframe technologies, along with the ability to analyze, maintain, and enhance legacy systems in a large enterprise environment. Key Responsibilities:Analyze, design, code, test, and implement mainframe-based applications. Support and maintain existing COBOL/JCL/DB2 programs. Collaborate with busi

Lead Platform Engineer

Booz Allen Hamilton

Remote

Full-time

Job Number: R0222646 Platform Engineer, Lead The Opportunity: Are you looking for an opportunity to leverage your Platform Engineering expertise in a high-impact role? Booz Allen is building a next-generation end-to-end platform for development, testing, and production workloads to accelerate secure software development. We're looking for a Lead Platform Engineer to join the team. You'll help operate a secure, reliable, and highly available Cloud, managed hosting, and developer platform. You s

Sr., Python Developer (NO C2C/NO SPONSORSHIP)

OpTech

Remote

Contract

OpTech is seeking for strong Python Developers for one of their direct clients. Duration - 6 months 100% remote within US. REQUIRED EXPERIENCE: Related Bachelor s degree or related work experience 5+ years related work experience, professional experience with technical design and coding in the IT industry Must have experience developing back-end processes and API services using Python Excellent understanding of RESTful Architecture style. Excellent understanding of Python programming mode a

C++ lead developer

E-Solutions, Inc.

California, USA

Third Party

Hi Professionals, Title: C++ Lead Developer Location: Remote JD: Mandatory skills Strong proficiency in C++ (including modern C++ standards like C++11/14/17) Deep understanding of Windows internals, Win32 API, and system-level programming Expertise in COM/DCOM architecture, ATL, and ActiveX controls Proven experience in legacy system migration (e.g., from desktop to cloud or modern platforms) Solid grasp of software architecture principles, design patterns, and system integration Experience with

Informatica MDM Lead/Developer

IT Resonance Inc.

Remote

Contract, Third Party

Informatica MDM Lead/Developer 12 months Remote with occasional Travel Technical expertise in Informatica MDM (on-premise), ActiveVOS, Provisioning UI, Informatica PowerCenter/ICS, IDQ/CDQ, SQL, Experience with integrations, particularly with SAP (IDoc via Informatica Cloud Data Integration) and Salesforce. Regards Stephen DJA stephen at itresonance dot com

Senior Security Engineer - SailPoint Identity Security Cloud

CVS Health

Texas, USA

Full-time

At CVS Health, we're building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care. As the nation's leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues - caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all w

Sr. Engineer - Analytics Engineering Mgmt

Splunk Inc.

Colorado, USA

Full-time

Description Join us as we pursue our exciting new vision to make machine data accessible, usable, and valuable to everyone. We are a company filled with people who are passionate about our product and seek to deliver the best experience for our customers. At Splunk, we're committed to our work, customers, having fun, and most importantly to each other's success. Learn more about Splunk careers and how you can become a part of our journey! You will be a senior engineer in Splunk's Analytics Eng

Sr. Engineer - Analytics Engineering Mgmt

Splunk Inc.

North Carolina, USA

Full-time

Description Join us as we pursue our exciting new vision to make machine data accessible, usable, and valuable to everyone. We are a company filled with people who are passionate about our product and seek to deliver the best experience for our customers. At Splunk, we're committed to our work, customers, having fun, and most importantly to each other's success. Learn more about Splunk careers and how you can become a part of our journey! You will be a senior engineer in Splunk's Analytics Eng

Principal Java / Spring Boot and Security / Hybrid in Chicago / 10+ YOE

Motion Recruitment Partners, LLC

Chicago, Illinois, USA

Full-time

We are seeking a senior-level Java Engineer to join a high-performing team building a next-generation platform for industrial automation and manless yard operations. This Chicago-based company is launching a secure, scalable, event-driven microservices architecture to transform logistics, steel mills, and warehouse operations-and they need a strong backend builder to help lead the way. You'll be the most senior engineer on the team (aside from the hiring manager), playing a central role in shapi

LEAD SALESFORCE DEVELOPER | COLUMBUS, OH (REMOTE)

Columbus Technology Solutions

Remote or Columbus, Ohio, USA

Contract

JOB TITLE: LEAD SALESFORCE DEVELOPER JOB DURATION: 8-12 MONTHS JOB LOCATION: COLUMBUS, OH (REMOTE) EXPERIENCE: 9+ YEARS VISA: , GC-EAD - CAN APPLY. - (NO H1B) LINKEDIN IS MANDATORY Job Summary: We are seeking an experienced and highly motivated Lead Salesforce Developer to drive the design, development, and deployment of Salesforce solutions across our organization. This role requires strong technical expertise in Salesforce development, leadership capabilities, and the ability to collabor

Senior Renewable Electrical Engineer 1 - Grid

Sargent & Lundy LLC.

Chicago, Illinois, USA

Full-time

Description This role offers a hybrid work arrangement. You'll spend three days a week in the office, giving you the flexibility to work remotely for two days. As a Senior Engineer (Renewables Focus) in our Electric Grid Infrastructure Services business unit you will: Interact with renewable power plant developers during the execution of engineering and design project work.This position offers you the opportunity to work in a project team environment with other engineers and designers involved

Senior Engineer, Mechanical

ICU Medical, Inc.

Lake Forest, Illinois, USA

Full-time

Job Description Senior Engineer, Mechanical - Lake Forest, IL Responsibilities Completes advanced engineering projects with peer input and guidance from engineering management. Analyzes, plans, organizes, and completes projects of a very complex nature. Finite Element Analysis (FEA) modeling is a plus. Develops CAD models, prototypes, and performs testing to demonstrate feasibility of design concepts. Provides design solutions for various electro mechanical medical devices including providing

SAP Commerce Lead Engineer

Perficient

Chicago, Illinois, USA

Full-time

Perficient is a global AI-first consultancy. Our team of strategists, designers, technologists, and engineers partners with the world's most innovative enterprises and admired brands to deliver real business results through the transformative power of AI. As part of our AI-First strategy, we empower every employee to build AI fluency and actively engage with AI tools to drive innovation and efficiency. We break boundaries, obsess over outcomes, and shape the future for our clients. Join a compan

AI Engineer

Biztec Global LLC

Remote

Contract

Role: AI Engineer Location: Remote Contract 3 experienced engineers (likely senior-level) to contribute to AI-focused backend development. The ideal candidates should: Must Have: 7+ years of development experience, especially in PythonFamiliarity with Flask (for building APIs), PostgreSQL, Redis, and Google Cloud (Google Cloud Platform)Experience (or willingness to ramp up) with modern AI/ML tools, including:Vertex AIGemini API (Google s large language model)Agentic workflows (AI agents that ca

Mid-Level Backend Developer

Boeing Company

Remote or Long Beach, California, USA

Full-time

Mid-Level Backend Developer Company: The Boeing Company The Boeing Company is currently seeking a Mid-Level Backend Developer to join the team in Long Beach, CA. We are looking for a talented Mid-Level Backend Developer to join our high-performance team. The ideal candidate will have a strong understanding of server-side programming and experience with backend technologies. You will be responsible for building and maintaining the server-side logic, ensuring high performance and responsiveness

Lead Angular and Java Back End Developer - C13 - IRVING

Citi

Remote or Irving, Texas, USA

Full-time

The App Dev Tech Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products