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- 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 ofSuggestedRemote work
Samprasoft
O Fallon, MO3 days ago - Software Engineer I, Launch Program 2026 Mastercard works to connect and power a sustainable and inclusive global economy. We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless...SuggestedWork experience placementInternship
MasterCard
O Fallon, MO5 days ago - Senior Software Engineer O'Fallon, Missouri contract Rate: 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...SuggestedContract work
Staffing the Universe
O Fallon, MO4 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 ...SuggestedLocal area
RIT Solutions
O Fallon, MO2 days ago $115k - $184k
Senior Software Engineer 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...SuggestedFull timePart timeWorldwideFlexible hoursMissouri Staffing
O Fallon, MO3 days ago$115k - $184k
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...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 hours agonew- Software Engineer II Location: O'Fallon, 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...SuggestedLocal area
RIT Solutions
O Fallon, MO2 days 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) ...Suggested
RIT Solutions
O Fallon, MO1 day ago - About Us: At *** (*** | Connected World, Connected Experiences), we live the philosophy of connected world and connected experiences. We thrive on change that is powered by the intelligent symphony of technology and humans designing meaningful and sustainable experiences...Suggested
Yantran LLC
O Fallon, MO4 days ago - Position: Java Engineer Location: Onsite - 5 Days/Week (O'Fallon, Missouri or NYC, NY) Type: Full-Time Employee (FTE) Openings: 5 urgent positions Interview Mode: Local candidates must be available for in-person interviews We're seeking experienced...SuggestedFull timeLocal area
Veracity
O Fallon, MO4 days ago $92k - $147k
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...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO13 hours 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 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...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago$100k - $105k
We are seeking a senior-level Java Software Engineer with strong technical expertise to guide development efforts and drive high-quality software delivery in our corporate banking division. You will work on high-traffic, scalable microservices while providing technical...SuggestedTemporary workFlexible hoursEPAM Systems Inc
O Fallon, MO3 days ago- Interview : Coding Test + F2F This is hybrid from day-1 ( Need only local candidates ) Visa : USC, GC, GC EAD, H4, L2 Description : Responsible for the analysis, design, development and delivery of software solutions Defines requirements...SuggestedContract workLocal area
ShiftCode Analytics
O Fallon, MO4 days ago $112k - $187k
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...Full timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO2 days ago- Hybrid role. Need local candidates only. Interview Process - Hacke rank Test , l1 & L2 interview. An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications, microservices, and...Local area
Damco Solutions
O Fallon, MO1 day ago - Interview : Coding test + F2F interview Visa : All apart from h1b and cpt This is hybrid from day-1 ( Need only local canddiates ) All of the performance scripts are in C/C++. They said that they would be open to a recent grad currently...H1bLocal areaWorldwide
ShiftCode Analytics
O Fallon, MO4 days ago $200k - $320k
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...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 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 - Job Title: Senior Software Engineer Overview: Job Overview Responsible for the analysis, design, development and delivery of software solutions. Define requirements for new applications and customization adhering to MasterCard standards, processes and best practices...Work experience placement
MasterCard
O Fallon, MO4 days ago - Summary Seeking an experienced full stack Software Engineer with proficiency in Java and Angular development, to assist the company with ongoing build and support work as well as to prepare and execute a systems migration/integration.This is a full time employee position...Full timeLocal areaRemote workRelocation
Timeless Technology Solutions
Dardenne Prairie, MO13 hours 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...Work at officeLeidos
Saint Charles, MO7 days 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 $115k - $184k
Senior Software Engineering (RPA - Automation Anywhere 360 & C# .NET) 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...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago$138k - $221k
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago$115k - $184k
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago$138k - $221k
Lead, AI Security Engineer As an Information Security Engineer specializing in AI Security, you will be at the forefront of protecting our AI systems and data. Your role will involve deep technical expertise in designing, implementing, and maintaining advanced security...Full timePart timeFlexible hoursMasterCard
O Fallon, MO5 days ago- Senior Azure Platform Engineer Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using ...
MasterCard
O Fallon, MO13 hours ago $138k - $221k
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago
