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- ...Have you spent time in Linux environments? Have you created scripts to automate manual tasks (i.e. shell script, TCL, Perl, Python)? Do you understand throughput, latency, memory and CPU utilization? Do you have experience and prefer working in an Agile...PythonH1bLocal areaWorldwide
ShiftCode Analytics
O Fallon, MO4 days ago - ...relational data and willingness to learn SQL * Basic knowledge of Microsoft Excel. * Experience in programming languages (JavaScript, Python, etc.) a plus Work Environment: * The work environment consists of exposure to physical conditions typical of a normal office...PythonFull timeApprenticeshipWork at officeLocal areaFlexible hours
Automotive Product Consultants, LLC
O Fallon, MO12 hours 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...PythonLocal area
RIT Solutions
O Fallon, MO2 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......PythonLocal area
RIT Solutions
O Fallon, MO2 days ago $75k - $125k
...and making decisions with a sense of urgency is needed. • Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing and troubleshooting large-scale distributed systems. • We need team members...PythonFull timePart timeWorldwideFlexible hoursShift workMasterCard
O Fallon, MO2 days ago- ...based experience (personal, academic, internship) in one or more general-purpose programming languages such as: Java, JavaScript, C#, Python, etc. Familiarity using persistent data stores such as relational databases, NoSQL, etc. Uses defensive coding, logging, and...PythonWork experience placementInternship
MasterCard
O Fallon, MO5 days ago $138k - $221k
...CloudFormation and Infrastructure as Code (IaC) principles. Develop scalable solutions using at least one programming language (e.g., Python, Java). Collaborate with cross-functional teams to ensure data integrity, governance, and accessibility. Apply knowledge of...PythonFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO1 day ago$115k - $184k
...management, and root cause analysis, ensuring high availability and reliability of systems. Proficiency in scripting languages (e.g., Python, Bash) and infrastructure as code tools (e.g., Terraform, CloudFormation) to automate infrastructure. Knowledge of web...PythonFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago- ...privacy principles, and regulatory compliance (e.g., PCI DSS, GDPR, SOX). o Experience with various programming languages (e.g., Java, Python, Go) and development methodologies (Agile, DevOps). • Risk Management Acumen: o Experience in technology risk management, audit...Python
MasterCard
O Fallon, MO2 days ago - ...majoring in Computer Science or a related field with a graduation date of Winter 2026 Spring 2027 - Hands-on experience working in both Python and SQL - Knowledge of Cloud or Big Data Technologies is a plus (Data Bricks, Spark in the Cloud, Hadoop) - Proficient in...PythonFull timePart timeSummer workInternshipSummer internshipWork at officeWorldwideFlexible hours
MasterCard
O Fallon, MO5 days ago - Java Backend Engineer O'Fallon, MO - Day 1 Onsite Full Time An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications, microservices, and a modern technology stack. Here's a breakdown...SuggestedFull time
Veracity
O Fallon, MO3 days ago $159k - $254k
...communication skills. Experience in predictive modeling, data science, and analysis in both batch and streaming settings. Proficiency in Python/R, Hadoop, Spark, MySQL with documentation for reproducibility. Experience in anomaly detection, supervised/unsupervised...PythonFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO5 days ago$138k - $221k
...solutions in the data and analytics domain. Role Develop high quality, secure and scalable data pipelines using spark, Scala/python on Hadoop or object storage. Leverage new technologies and approaches to innovate with increasingly large data sets. Drive...PythonFull timePart timeFlexible hoursMasterCard
O Fallon, MO5 days ago- ...Systems, Information Technology, or another related field) - Hands-on experience in SQL and another coding language, preferably Python - Knowledge of PySpark is preferred - Understanding of Cloud or Big Data Technologies (Data Bricks, Spark in the Cloud, Hadoop)...PythonFull timePart timeWork at officeWorldwideFlexible hours
Missouri Staffing
O Fallon, MO2 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...SuggestedWork at office3 days per week
Veracity
O Fallon, MO1 day ago $138k - $221k
...transparency across the team. All about you Expert in SQL development with hands-on experience in Databricks, Snowflake, Python, and PySpark for designing and implementing advanced data engineering solutions. Proven experience collaborating with...PythonFull timePart timeWorldwideFlexible hoursMissouri Staffing
O Fallon, MO5 days ago$94k - $157k
...hiring requirements. Preferred Qualifications: (For L7 and above): · Coding experience in one or more of the following: C++, Java, Python, Go · Experience with algorithms, data structures, scripting, pipeline management, and software design. · Experience in working...PythonFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago$85.15k - $153.93k
...services, like compute, storage and be able to develop and deploy cores services (Lambda, EC2s). C#/Java and JavaScript/TypeScript, Python, Shell scripting. This role includes creation and documentation of new and existing functionality within software version...PythonWork at officeLeidos
Saint Charles, MO2 days 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, MO5 days ago - Job Title: Senior Email Marketing Developer The following information provides an overview of the skills, qualities, and qualifications needed for this role. Reporting to: Marketing Operations Specialist Location: On-Site (O’Fallon, MO) Position Type: Full-time...Full timeApprenticeshipWork at officeLocal areaFlexible hours
Automotive Product Consultants, LLC
O Fallon, MO23 hours 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, MO10 hours 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...Full timeLocal area
Veracity
O Fallon, MO4 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 ...Local area
ShiftCode Analytics
O Fallon, MO4 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...Contract workLocal 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...Full 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...Temporary workFlexible hoursEPAM Systems Inc
O Fallon, MO3 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- ...maintain robust and scalable backend services using Java, Spring Boot, or other object-oriented programming languages such as C/C++, Python (with flask) or Node.js and microservices architecture * Deploy and manage applications on PCF or other cloud platforms * Develop...Python
- ...and identify root causes of compliance failures where applicable. Collaborate with Data Analytics partners, or use your own SQL, Python, or other programming capabilities to analyze datasets as part of testing execution. Assist in the development of compliance...PythonWork experience placement
Missouri Staffing
O Fallon, MO4 days ago
