software development Jobs in o'fallon, mo

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Technical Lead- Principal Android Engineer

LMI Government Consulting (Logistics Management In

Remote

Contract

Overview Remote (U.S. Based) | Some Travel Required LMI is a consultancy dedicated to improving the business of government, drawing from deep expertise in advanced analytics, digital services, logistics, and management advisory services. Established in 1961, LMI is a trusted third party to federal civilian, national security, and defense agencies, operating free of commercial and political bias. For nearly 60 years, LMI has worked with 40 government agencies. We believe government can make a d

Engineering Manager, Cloud Infra (Compute)

Airbnb

Remote

Full-time

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: At Airbnb, we believe in the power of community and the importance of connecting people. Our mission is to

DevSecOps Engineer - Staff

Lockheed Martin Corporation

Remote or King of Prussia, Pennsylvania, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

Principal Software Developer

Fresenius Medical Care

Remote or Rockleigh, New Jersey, USA

Full-time

Principal Software Developer, National Medical Care, Inc., a Fresenius Medical Care N.A. company, Rockleigh, New Jersey (Hybrid) Responsible for building software products, applications, solutions that are used in local, networked, cloud-based and public facing computer programs. Specific duties and responsibilities will include: Analyze, design, develop, implement, integrate and maintain software applications that use Internet or Intranet endpoints. Prepare technical designs and design specif

Sr Staff Cyber Security Architect- Remote

GE Aerospace

Evendale, Ohio, USA

Full-time

Job Description Summary This position will work on highly complex projects that require in-depth domain knowledge in two or more specialized areas. You will lead the modernization of our secure development capabilities, improve our security engagement and assessment function, and partner directly with the business to secure systems before and as they are built. The ideal candidate will possess "big-picture" thinking and hands-on experience securing the latest enterprise technologies. Job Descri

Algo Trading Java Developer - VP - New York (Hybrid)

Citi

Remote or New York, New York, USA

Full-time

About Citi Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. Our core activities are safeguarding assets, lending money, making payments and acc

Internship, Integration Platforms Software Developer, Vehicle Firmware(Fall 2025)

Tesla Motors

Remote or Palo Alto, California, USA

Full-time

Consider before submitting an application: This position is expected to start around August or September 2025 and continue through the Fall term (ending approximately December 2025) or continuing into Winter/Spring 2026 if available and there is an opportunity to do so. We ask for a minimum of 12 weeks, full-time and on-site, for most internships. Our internship program is for students who are actively enrolled in an academic program. entry level candidates seeking employment after graduation a

Staff AI/ML Software Engineer

ServiceNow, Inc.

Remote or West Palm Beach, Florida, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Staff AI/ML Software Engineer

ServiceNow, Inc.

Remote or Atlanta, Georgia, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Full Stack Engineer, Trust & Safety

Calendly

Remote

Full-time

About the team & opportunity What's so great about working on Calendly's Trust & Safety team? Our Trust & Safety team is tasked with safeguarding our platform's integrity and addressing a range of challenges including detecting and mitigating fraudulent activity, preventing abuse, and ensuring compliance with legal and regulatory standards. You will play a crucial role in designing, developing, and maintaining our system to prevent, detect, and respond to these threats in real-time - in an auto

Lead Engineer, Applications - Edifecs/JavaScript/SQL - Remote

Molina Healthcare

Remote or Long Beach, California, USA

Full-time

Job Description JOB DESCRIPTION Job Summary Designs and builds company specific enterprise application systems and technology expertise across multiple disciplines. Applies and promotes key principles (e.g., stability, scalability, performance, security, compatibility, re-use), helping ensure a balance between tactical and strategic technology solutions. Considers business problems "end-to-end": including people, process, and technology, both within and outside the enterprise, as part of any

Software Engineer Advisor

General Dynamics

Remote

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: FileNet, IBM Content Manager, IBM Content Navigator Certifications: None Experience: 9 + years of related experience ship Required: No Job Description: Seize your opportunity to make a personal impact as an IBM COTS Engineer supporting the Centers for Medicare & Medicaid Servic

Staff AI/ML Software Engineer

ServiceNow, Inc.

Remote or Chicago, Illinois, USA

Full-time

Company Description It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today - ServiceNow stands as a global market leader, bringing innovative AI-enhanced technology to over 8,100 customers, including 85% of the Fortune 500 . Our intelligent cloud-based platform seamlessly connects people, systems, and processes to empower organizations to find smarter, faster, and better ways to work. But thi

Principal Systems Test Equipment Engineer

Draper

Remote or Cambridge, Massachusetts, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas

Senior Infrastructure Software Engineer

Dropbox Inc

Remote

Full-time

Dropbox is a Virtual First company. For this role, we are hiring in Zones 2 and 3. Please refer to our Compensation section below to see what neighborhoods fall under each Zone. Company Description Dropbox isn't just a workplace-it's a living lab for more enlightened ways of working. We're a global community of bold visionaries and resourceful doers who are shaping the future of Dropbox-and with it the future of work. Our Virtual First model combines the autonomy of a distributed workplace with

Sr. Release Manager - Salesforce

Maximus, Inc.

Remote

Full-time

Description & Requirements The Release Manager will establish and oversee robust release management processes for Salesforce engineering within our SDLC. This individual will coordinate and manage the release lifecycle for Salesforce applications, ensuring efficient production deployments and alignment with cross-application dependencies. The ideal candidate will have a proven track record of managing complex Salesforce environments and supporting concurrent release trains while continuously ref

Salesforce Developer (Interim security clearance or higher e.g., Secret, Top Secret, TS/SCI)

HigherEchelon

Remote

Full-time

Salesforce Developer (Interim security clearance or higher e.g., Secret, Top Secret, TS/SCI) Location: Remote The HigherEchelon Salesforce Practice is seeking a skilled and experienced Salesforce Developer to join our team. The Salesforce Developer will design, develop, and implement Salesforce solutions using Apex, Lightning Web Components, Visualforce, and other technologies. This role requires expertise in Salesforce development, proficiency in Apex programming language, and a strong unders

Software Engineer - C11 Tampa

Citi

Remote or Tampa, Florida, USA

Full-time

Job Title: Software Engineer - C11/Officer The Role We are looking for entry-level full-stack software engineers who are passionate about solving business problems through innovation and engineering practices. This role will be responsible for writing code, pairing with other developers as appropriate, decomposing acceptance criteria to understand team backlog deliverables, complexities, and risk, while working as a strong contributor on an agile team. From a technical standpoint, the Softwar

Application Development Senior Advisors- Hybrid

Cigna

Remote or Sunrise, Florida, USA

Full-time

The job profile for this position is Application Development Senior Advisor, which is a Band 4 Contributor Career Track Role with Cigna-Evernorth Services Inc. Responsibilities- Partner with multiple IT and business teams throughout various software development stages for applications built to support Cigna Voluntary and Dental product offerings; Lead root cause analysis process and provide support for production defects, subsequently resolving or routing to the teams accountable for service re

Solutions Architect (AWS/Snowflake)

AFLAC

Remote

Full-time

Salary Range: $138,000 - $173,000 Job Posting End Date: June 30, 2025 We've Got You Under Our Wing We are the duck. We develop and empower our people, cultivate relationships, give back to our community, and celebrate every success along the way. We do it all The Aflac Way . Aflac, a Fortune 500 company, is an industry leader in voluntary insurance products that pay cash directly to policyholders and one of America's best-known brands. Aflac has been recognized as Fortune's 50 Best Workplaces