Legacy systems jobs in chesterfield, mo

Bridgeton, Missouri

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Today

Job ID: 115526 The Leonardo DRS Land Systems business is a recognized leader in the design and integration of complex technologies into new and legacy systems and platforms for global military and commercial customers. We are a 6 year running Top Workplace in the Greater St. Louis area. Job Summary Leonardo DRS Land Systems is seeking a full time Senior Test Engineer with expertise in systems level test planning and execution, including the design, development, analysis, documentation, and supp

Full-time

USD 93,121.00 - 125,713.00 per year

Lead Software Engineer-Simulation

Berkeley, Missouri

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Today

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 inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is currently seeking a Lead Software Engineer-Simulation (Level 5) to join the Flight Simulation | Labs team located in Berkeley, MO. Flight Simulation | Labs provides comprehensive simulation and laboratory sol

Full-time

Compensation information provided in the description

Software Engineer?Simulation (Experienced or Senior)

Hazelwood, Missouri

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Today

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 inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is currently seeking Software Engineers?Simulation to support our Simulation Integration and Delivery (SID) team located in Berkeley, Missouri. This is a dynamic team that provides simulation software across the

Full-time

Compensation information provided in the description

Lead Software Engineer-Simulation

Berkeley, Missouri

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Today

Lead Software Engineer-Simulation Company: The Boeing Company The Boeing Company is currently seeking a Lead Software Engineer-Simulation (Level 5) to join the Flight Simulation | Labs team located in Berkeley, MO. Flight Simulation | Labs provides comprehensive simulation and laboratory solutions for the design, development, and deployment of Boeing Defense Systems products. This position is for a Lead Software Developer on the Test Development Kit (TDK) project on the Flight Simulation Core

Full-time

USD 198,050.00 - 267,950.00 per year

F-22 Simulation Software Engineer (Associate, Experienced, and Senior)

Berkeley, Missouri

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Today

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 inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is looking for a F-22 Simulation Software Engineer (Associate, Experienced, or Senior) to join the F-22 Simulation Infrastructure team located in Berkeley, Missouri. This position will focus on supporting the B

Full-time

Compensation information provided in the description

Associate Flight Test Data Processing Software Engineer

Berkeley, Missouri

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Today

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 inclusive, with great opportunity for professional growth. Find your future with us. Boeing Test and Evaluation (BT&E) is currently seeking an Associate Flight Test Data Processing Software Engineer to join the Midwest Data Processing & Visualization team in Berkeley, MO. Boeing Test & Evaluation?s Midwest Data P

Full-time

Compensation information provided in the description

Electrical Engineer Intern

Bridgeton, Missouri

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Today

Job ID: 115029 The Leonardo DRS Land Systems business is a recognized leader in the design and integration of complex technologies into new and legacy systems and platforms for global military and commercial customers. We are a 6 year running Top Workplace in the Greater St. Louis area. Job Summary Leonardo DRS Land Systems is seeking a Summer Electrical Engineer Intern for our Bridgeton, MO facility. This role will support the design, fabrication and modification of electrical and/or electro-m

Full-time

USD 41,011.00 - 53,315.00 per year

Systems Engineer Intern

Bridgeton, Missouri

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Today

Job ID: 115063 The Leonardo DRS Land Systems business is a recognized leader in the design and integration of complex technologies into new and legacy systems and platforms for global military and commercial customers. We are a 6 year running Top Workplace in the Greater St. Louis area. Job Summary Leonardo DRS Land Systems is seeking multiple Summer Systems Engineer Interns for our Bridgeton, MO facility. These interns will help our systems engineering (SE) team meet the technical performance

Full-time

USD 41,011.00 - 53,315.00 per year

Associate Flight Test Data Processing Software Engineer

Berkeley, Missouri

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Today

Associate Flight Test Data Processing Software Engineer Company: The Boeing Company Boeing Test and Evaluation (BT&E) is currently seeking an Associate Flight Test Data Processing Software Engineer to join the Midwest Data Processing & Visualization team in Berkeley, MO. Boeing Test & Evaluation's Midwest Data Processing & Visualization team develops software applications and tools for instrumentation system setup and configuration; real-time monitoring; and post-test data processing, storage

Full-time

USD 91,800.00 - 124,200.00 per year

Senior Mainframe Assembler Analyst

Remote

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Yesterday

Infinite Solutions Inc. is a California-based Information Technology Solution provider specializing in delivering enterprise technology and digital transformation solutions for public-sector clients since 1997. With deep expertise in systems integration, ERP implementations, data analytics, and modernization, we support mission-critical initiatives for State and local agencies. Our team is known for combining technical excellence with a practical, results-driven approach to solving complex busin

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Contract, Third Party

Depends on Experience

Quadient/GMC Inspire Developer

Remote

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Today

Quadient Inspire DeveloperIntroduction:We are seeking a talented Quadient Inspire Developer to join our team. The ideal candidate will be responsible for designing and developing applications using Quadient Inspire as well as other software applications. They will play a crucial role in setting up master workflows, optimizing templates, and migrating forms from legacy systems to Quadient Inspire platforms. Responsibilities:Performs design and development of applications on complex projects utili

Easy Apply

Contract

Depends on Experience

Embedded Software Engineer Intern

Bridgeton, Missouri

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Today

Job ID: 115031 The Leonardo DRS Land Systems business is a recognized leader in the design and integration of complex technologies into new and legacy systems and platforms for global military and commercial customers. We are a 6 year running Top Workplace in the Greater St. Louis area. Job Summary Leonardo DRS Land Systems is seeking an Embedded Software Engineer Intern for Summer 2026 to help our Software Engineering (SW) team meet the technical performance requirements on complex system deve

Full-time

USD 41,011.00 - 53,315.00 per year

AI Test Lead - W2 only

Remote

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2d ago

AI Test leadAI Test lead , 100% RemoteRate: 65 on w2 wobLocation: 100% Remotestrong agentic AI experienceexperience transform java/selenium using playwright, agentic AIdesktop automation is a mustno documentation - how can you work around it and automate and test those thingsFeedback on Abhishek: 1. Has experience with migrating existing Selenium Automation suite to Playwright framework using Claude. When asked which Claude model did you use he was not sure first mentioned Haiku then said whatev

Easy Apply

Contract

55 - 65

Mainframe Modernization Architect

Remote

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30+d ago

Modernization Senior Architect - Mainframe 6 month contract ( option for hire )100% remoteClient is a billion dollar Services company REQUIREMENTS Bachelors degree in engineering or computer sciences20+ years of experience as an architect or equivalent in the hosting and network space (preferably with a service provider)Over 12 years' experience as a Modernization or Migration Architect, leading legacy system upgrades to new platforms with minimal business disruption.Hands-on experience with Mai

Easy Apply

Contract

80 - 90

.NET + Ruby + Python

Remote

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3d ago

Hiring: .NET + Ruby + Python Location: Remote Experience & Visa Requirements: Key Responsibilities: Assess on-premises applications for cloud migration readiness. Containerize and modernize applications built with Ruby on Rails, .NET, Python, and/or Elixir. Deploy applications to Azure Kubernetes Service (AKS) using Helm charts and Kubernetes manifests. Build and maintain CI/CD pipelines using GitHub Actions and Azure DevOps. Re-platform legacy applications and integrate Azure Key Vault. Plan

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Full-time

45 - 50

Epic Systems Analyst - Revenue Cycle

Remote or Louisiana

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Today

Your job is more than a job Why a Great Place to Work You're more than your job. Everyone is. And that's what makes you great at your job-all the little extras you bring to work every day, the things that make you you. At LCMC Health we value those things about you, because we know that all those little extras add up to extraordinary. And we've built a culture that supports and celebrates the extraordinary. You'll see it when you come to work here, in the spirit of our places and the faces of

Full-time

AI / Data Resource

Remote

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Yesterday

Requirements 5 years or more experience in AI-driven data analysis, QA validation, and business logic documentation Proficiency in Python for code review, troubleshooting, and data-driven analysis Experience in reading and interpreting CBASIC code to resolve logic issues and processing errors Experience with analyzing unfamiliar programming languages and identifying defects in application logic Experience in validating system outcomes against underlying data sources and business rules Excellent

Easy Apply

Contract

Depends on Experience

Senior/Lead CA Gen Engineer - Mainframe Modernization (Remote)

Remote or New York, New York

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Today

We are looking for a Senior or Lead Engineer with deep CA Gen (Broadcom Gen, COOL: Gen, CoolGen) expertise to join an established team of 15-20 engineers on a large-scale mainframe modernization initiative. You will help rebuild legacy applications and eliminate dependency on CA Gen and mainframe technology, translating deep model and code knowledge into detailed specifications that drive forward-engineering of modern replacement systems. This is a 100% remote role with no on-call support requir

Full-time

Senior/Lead CA Gen Engineer - Mainframe Modernization (Remote)

Remote

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Today

Full-time

Systems Administrator

Remote or Park City, Utah

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Today

Description We are looking for a Systems Administrator to join a contract engagement based in Park City, Utah. This role is suited for an experienced Windows infrastructure specialist who can evaluate legacy server environments, uncover operational dependencies, and provide clear recommendations for next steps. The assignment will focus on assessing existing systems, documenting their business purpose, and helping stakeholders decide whether platforms should remain in place, be moved, or be reti

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Contract

USD 35.63 - 41.25 per hour

Legacy systems jobs in Chesterfield, MO, USA