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$115k - $184k
...various applications and services. Implement infrastructure as code (IaC) using tools such as Terraform, CloudFormation, or AWS CDK... ...platforms to enhance functionality and streamline processes. Develop and maintain APIs for SaaS integrations, ensuring they are...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago- ...optimization. # Microservices and REST API Proficiency: Skilled in developing web services, particularly microservices architectures, and... ...'s commitment to writing clean, maintainable, and scalable code. # Broad Technology Stack Experience: Familiar with a...SuggestedFull time
Veracity
O Fallon, MO3 days ago $138k - $221k
...Platforms team is an excellent opportunity for you to design and develop the next wave of data innovation at MasterCard. Our program is... ...deploy infrastructure using CloudFormation and Infrastructure as Code (IaC) principles. Develop scalable solutions using at least one...SuggestedFull timePart timeWorldwideFlexible hoursMissouri Staffing
O Fallon, MO1 day ago- ...database issues, ensuring high availability and data integrity Automate database deployments and updates using Infrastructure as Code (IaC) tools like Terraform or Bicep Collaborate with development teams to support data modelling, schema design, and query optimization...Suggested
MasterCard
O Fallon, MO17 hours ago $112k - $187k
...healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient... ...degree in Computer Science or related technical field involving coding (e.g., physics or mathematics), or equivalent practical experience...SuggestedFull timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO2 days ago- ...Interview : Coding Test + F2F This is hybrid from day-1 ( Need only local candidates ) Visa : USC, GC, GC EAD, H4,... ...works to improve experience and metrics in ownership area Develop complete understanding of end-to-end technical architecture and...SuggestedContract workLocal area
ShiftCode Analytics
O Fallon, MO4 days ago - ...technologies. This is a highly technical role ideal for senior developers or leads passionate about solving complex problems in a fast-paced... .... Drive end-to-end development life cycle, including code reviews , unit testing , and deployment . Work closely...SuggestedFull timeLocal area
Veracity
O Fallon, MO4 days ago - ...Interview : Coding test + F2F interview Visa : All apart from h1b and cpt This is hybrid from day-1 ( Need only local... ...new technologies and apply it to your team? Have you developed software before - preferably in Java or C/C++? Have you spent...SuggestedH1bLocal areaWorldwide
ShiftCode Analytics
O Fallon, MO4 days ago $100k - $105k
...offshore teams. Req. #873804476 Responsibilities Design and develop Java-based microservices architecture Ensure implementation... ...backend services with modern frontend frameworks Conduct code reviews and maintain quality standards Collaborate with cross...SuggestedTemporary workFlexible hoursEPAM Systems Inc
O Fallon, MO3 days ago$200k - $320k
...into our documents. Finally, we maintain several libraries of code that help our engineering teams move faster, avoid re-inventing... ..., curated from best practices in other Mastercard teams, or co-developed by A&T and engineers from the Guild. The Role: As an A&T...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago- ...Interview : Coding Test + F2F interview This is hybrid from day-1 ( Need only local candidates ) Visa : USC, GC, GC EAD, H4, L2 Description: We are looking for more junior java developers that have experience with testing that are looking to get into...SuggestedLocal area
ShiftCode Analytics
O Fallon, MO4 days ago $72k - $115k
...our customers. We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing... ...about software engineering? Do you enjoy seeing the impact your code has on a wide range of customers which improves their experience...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago$85.15k - $153.93k
...Job Description Description The Leidos FS2 Aero team has an opening for an experienced Full Stack Software Developer r to modify existing code and integrate software solutions for the Aeronautical Navigation Office. The ideal candidate has an excellent understanding...SuggestedWork at officeLeidos
Saint Charles, MO7 days ago$115k - $184k
...about building great software and ready to grow your career, we'd love to hear from you. Role Hands-on developer who writes high quality, secure code that is modular, functional and testable. Create or introduce, test, and deploy new technology to optimize...SuggestedFull timePart timeWorldwideFlexible hoursMissouri Staffing
O Fallon, MO3 days ago- ...and full stack development in modern technologies for large enterprise technology platforms and systems.\ Hands-on experience in coding Microservices in Java, building UI/UX, frameworks such as React, Angular, spring boot, RDBMS, Oracle and event driven architecture....Suggested
Yantran LLC
O Fallon, MO4 days ago - ...our customers. We are looking for talented software engineers to develop advanced technologies and applications that are revolutionizing... ...Engineer I, you will have the opportunity to: Write high-quality code with a focus on security, design, and maintainability....Work experience placementInternship
MasterCard
O Fallon, MO5 days ago - ...Missouri (Main Campus) --- Local Candidates Only!! Duration: End of 2025 Glider: Software Engineer II - (Apache Spark, Airflow, Databricks, AWS, CICD and Coding(Java/Python/Scala); What are your top 3 required technical skills? Understand Continuous Integration......Local area
RIT Solutions
O Fallon, MO2 days ago $138k - $221k
...security frameworks for AI systems, including authoring of secure coding practices and secure design principles. Vulnerability... ...Support security engineers in the evaluation of AI systems being developed and implemented. Compliance and Standards: Keep track of emerging...Full timePart timeFlexible hoursMasterCard
O Fallon, MO5 days ago- ...Job Title Need strong Testng, Selenium, Java Coding experience Must have: Bachelors or Masters in CS or related degrees. Minimum of 6+ years with Master or 8+ years with Bachelors of hand on experience in software development in test automation, concurrent coding skills...
Staffing the Universe
O Fallon, MO1 day ago - ...adhering to MasterCard standards, processes and best practices. Develop, customize, and test applications to integrate to MasterCard's specifications... ...the SDLC including Requirements Review, Design Review, Code Review and Security Review to ensure compliance with MasterCard...Work experience placement
MasterCard
O Fallon, MO4 days ago $115k - $184k
...software for combating scammers? The Payment Resiliency team develops new products for Mastercard's fraud prevention platform. We protect... ...software engineers to build quality by ensuring proper test and code coverage, configuration quality, monitoring, early performance...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO7 hours agonew$138k - $221k
...Platforms, or Product bundles Work with business/product owners to develop and deliver on new services to introduce new products and... ...and development experiences in multiple languages, secure coding standards (e.g., OWASP, CWE, SEI CERT), and vulnerability management...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago$92k - $147k
...potential. Title and Summary Software Engineer II - iOS Developer Software Engineer II: Who is Mastercard? Mastercard is... ...standards, processes, and best practices Role: • Design, Code, document, test components / subsystems to a high standard •...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO17 hours ago- Lead Full Stack Engineer Job Location: O'Fallon, MO (Hybrid onsite 3 days/week) Job Travel Location(s): Must be able to travel to office as needed Positions: 1 Employment Type: C2H Duration: Long Term Key Technology: Java, Full Stack, SQL Job Responsibilities: Lead...Work at office3 days per week
Veracity
O Fallon, MO1 day ago - ...looking for: This is a contract remote role for a Front End Developer specializing in React JS and React Native. As a Front End Developer... ...Ability to write clean, maintainable, and efficient code Experience with version control systems such as Git, Azure Devo...Full timeContract workWork experience placementRemote work
Gold Bullion International LLC
Saint Charles, MO15 days ago - Software Engineer I Location: O'Fallon, MO (Local is Preference) Linux operating and scripting Python with API automation- scripting automation for day to day task Cryptography- how the cert works, and managing it Python or Java- understanding how they run ...Local area
RIT Solutions
O Fallon, MO2 days ago - ...: DOE U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor the currently Job Description Java, Spring, and Spring Boot Required. Everything is developed in that Rest API knowledge is a plus Very Mu......Contract work
Staffing the Universe
O Fallon, MO4 days ago - Job Title: Junior Email Marketing Developer Please read the information in this job post thoroughly to understand exactly what is expected of potential candidates. Location: On-Site (O’Fallon, MO) Position Type: Full-time Exempt Summary: Milestone Marketing...Full timeApprenticeshipWork at officeLocal areaFlexible hours
Automotive Product Consultants, LLC
O Fallon, MO1 day ago - ...Senior Software Engineer (iOS Developer) Location: St Louis, Missouri Duration: 12 months Glider: Software Engineer ADVANCED What are your top 3 required technical skills? Advanced level knowledge of native iOS development (Swift/Objective-C/Swift UI)...
RIT Solutions
O Fallon, MO1 day ago - Senior Software Dev Engineers O'Fallon MO (remote FOR NOW but will need to eventually be onsite) We can consider fully remote for a very strong candidate Looking for 2 Senior Software Dev Engineers This is part ofRemote work
Samprasoft
O Fallon, MO3 days ago
