Java Software Engineer jobs in Alton

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart a

Overview In this position, you will build software leveraging Esri's products and APIs to build core backend services that solve complex problems at a global scale. This is a unique opportunity to grow your technical skills while contributing to projects that matter. You'll work alongside engineers

Overview In this position, you will develop visualization software to understand data where proximity and location matter. Your work will help developer communities re-imagine the capabilities of location-aware software applications that enable real-world improvements. This team supports Defense and

Freedom Technology Solutions Group

Freedom Technology Solutions Groups is looking to add a senior Software Engineer to the team! This position is fully onsite in St. Louis, MO. The ideal candidate must have demonstrated firsthand experience in at least three of the following: Java, JavaScript or Python enterprise application developm

Hi Team, Hope you are doing well! We have below Priority Job Opportunity, Title: Java Performance Engineer – Lead SE (Strong Java Development Experience) Saint Louis, Missouri – Hybrid Role – Need Locals Final Round is Face to Face Preferred, Ok for Virtual Interview Hiring Manager Notes: Consultant

About Allsup, LLC Allsup LLC is a people-centered organization with a team of hundreds who are dedicated to helping people with disabilities lead lives that are as financially secure and healthy as possible. We enjoy working together to make a difference, get the job done, and find solutions for our

Overview In this position, you will design and develop high-performance, secure, and automated pipelines for deployment of Esri technology in the cloud and no-premises. You will partner closely with software developers and cloud engineers to ensure our integration and deployment is high-quality, rel

Freedom Technology Solutions Group

Freedom Technology Solutions Groups is looking to add a mid level Software Engineer to the team! This position is fully onsite in St. Louis, MO. Required Experience: Demonstrated firsthand experience in at least two of the following: ○ Java, JavaScript or Python enterprise application development ○

Overview As we continue to build our team in support of our vision to the be the world’s best and most trusted mobility company, Enterprise Fleet Management, an affiliate of Enterprise Mobility is excited to announce the opening of a Engineer 2, Software The Information Technology (IT) department of

Apply now » Date: Apr 10, 2026 Location: St. Louis, MO, US, 63146 Company: Hubbell Incorporated Job Overview Provide technical excellence in developing, sustaining, and supporting firmware associated with high‑volume electronic products within the AMI and utility communications industry. Contribute

Date: Apr 10, 2026 Location: St. Louis, MO, US, 63146 Company: Hubbell Incorporated Job Overview Provide technical excellence in developing, sustaining, and supporting firmware associated with high‑volume electronic products within the AMI and utility communications industry. Contribute to firmware

About Agile Defense At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next. Our vision is to bring adaptive innovation to suppo

Robert Half

Description Our company is seeking an experienced and motivated .NET Engineer to join our growing technology team in St. Louis, MO. In this key role, you will be responsible for designing, developing, and supporting scalable web and application solutions using Microsoft .NET technologies. Key Respon

About FlightSafety International FlightSafety International is the world’s premier professional aviation training company and supplier of flight simulators, visual systems and displays to commercial, government and military organizations. The company provides training for pilots, technicians and oth

Why WWT At World Wide Technology, we work together to make a new world happen. Our important work benefits our clients and partners as much as it does for our people and communities across the globe. WWT is dedicated to achieving its mission of creating a profitable growth company that is also a Gre

Boeing

$8,288 - $11,213 /year

Hazelwood, Missouri; St Louis, Missouri; Berkeley, Missouri Job ID JR2026503660 Category Engineering - Software Role Type Onsite Post Date Apr. 08, 2026 Job Description At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every team

Boeing Company

Embedded Software Engineer (Associate or Experienced) Company: The Boeing Company The Boeing Company is currently seeking Embedded Software Engineers (Associate or Experienced) to support our Non-Destructive Inspection (NDI) and Avionics automated Test Equipment (ATE) Software Engineering teams loca

Berkeley, Missouri Job ID JR2026504078 Category Security Clearance Role Type Onsite Post Date Apr. 09, 2026 Job Description At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusi

Senior Software Engineer | $115,000 - $184,000 USD We're hiring for a globally recognized technology company that powers economies and empowers people in over 200 countries. This employer is dedicated to building a sustainable economy and making digital payments secure, simple, smart, and accessible

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Software Engineer - REMOTE. In this role, you will make a significant impact on ensuring the safety and security of our platform. You will lead initiatives to develop innovative tools that safe