Senior Software Engineer - Java Full Stack Engineer MasterCardSenior Software Engineer - Java Full Stack EngineerO'fallon, MO$115,000–$184,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Experience in the following a plus: Web Services- SOAP/ RESTFul, Servers- WebSphere/JBOSS/Tomcat, HTML/ javascript/ JQuery, UNIX ( Shell, awk scripting), XML/ XSLT, CSS, C Sharp, React / Angular, IDE (Microsoft Visual Studio, RAD/ Eclipse).
Software Engineer II MasterCardSoftware Engineer IIO'fallon, MO$92,000–$147,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. The Payment Enablement program provides a suite of value-added switching services to each qualified transaction processed by Mastercard, increasing the security, accessibility, and simplicity of data for participating customers.
Senior Software Engineer MasterCardSenior Software EngineerO'fallon, MO$115,000–$184,000 / yearAccountable for the full systems development life cycle including creating high-quality requirements documents, use cases, designs, and other technical artifacts including but not limited to detailed test strategies, performance benchmarking, release rollout and deployment plans, contingency/back-out plans, feasibility studies, cost and time analysis, and detailed estimates. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and.
Principal Software Development Engineer MasterCardPrincipal Software Development EngineerO'fallon, MO$195,000–$323,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Proven ability to sell solutions, persuade cross-functional group, garner support for solutions and bring group to a consensus and strong ability in collection and formulation of data, development of Metrics and dashboard reporting.
IT Asset Specialist The Timberline GroupIT Asset SpecialistSaint Louis, MissouriIn this role you will participate in internal team initiatives and/or company approved projects; provide ad hoc reporting; support new/existing technology processes and services; interface with multiple departments; interact with executive management, corporate, and field representatives; and maintain vendor relationships associated with the asset accounts. Responsibilities of this role require managing simple to moderately complex IT assets throughout their lifecycle, which includes the acquisition, deployment, maintenance, licensing, renewals, and disposal of hardware and software assets.
Chief Systems Engineer KBRChief Systems EngineerSaint Louis, MOThe Chief Systems Engineers will assist in leading engineering teams in taking a multi-discipline approach to requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability and analysis across the NSG, ASG, and Federal Agencies to ensure timely and accurate GEOINT. Master's degree or higher in Systems Engineering or in related technical or scientific fields such as engineering, physics, mathematics, operations research, engineering management, Computer Science, Information Technology, Management Information Systems, or related STEM degree.
Senior Systems Administrator LeidosSenior Systems AdministratorSaint Louis, MissouriAs a trusted technical expert, you’ll work alongside talented engineers, cybersecurity professionals, and customer stakeholders to deliver innovative solutions, optimize enterprise infrastructure, and keep mission-essential capabilities operating at peak performance. July 28, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Agile Delivery Specialist StifelAgile Delivery SpecialistSaint Louis, MissouriFull timeWhat You'll Bring: • Proven expertise in user story writing, story splitting, and feature definition — including hands-on experience helping teams meet a Definition of Ready and maintain a healthy, well-ordered backlog. This individual is an embedded Agile practitioner who works hands-on with teams to deliver with quality and consistency, facilitating ceremonies, coaching good practices, and ensuring teams have the clarity, tools, and support they need to succeed.
Data Engineer Software Developer Isys TechnologiesData Engineer Software DeveloperScott AFB, IllinoisFull timeImplements solutions using Confluent Kafka, Elastic Stack, AWS, and Red Hat OpenShift (Kubernetes), including creating Kafka, Elastic, and Logstash pipelines and supporting Kibana visualizations and dashboards with React, JavaScript, and HTML. Experience with big data technologies and platforms such as Kafka, Spark, NiFi, Hadoop, Elasticsearch, Logstash, Databricks, and ELK Stack for text mining, summarization, search, and entity extraction.
HR Ecosystem Architect CopelandHR Ecosystem ArchitectSaint Louis, MOBest-in-class engineering, design and manufacturing combined with category-leading brands in compression, controls, software and monitoring solutions result in next-generation climate technology that is built for the needs of the world ahead. Strong understanding of the Joiner Mover Leaver (JML) process, including experience with systems that support user account creation and access provisioning, such as Active Directory, HRIS, and ticketing systems, all triggered from Workday.
Data Analytics & Visualization Engineer Isys TechnologiesData Analytics & Visualization EngineerScott AFB, IllinoisFull timeApplying the basics of visual design (i.e. UI) principles in their design work such as visual hierarchy, proximity, similarity, font selection and color theory and demonstrate an understanding of visual, layout, content organization, and accessibility guidelines. I2X Technologies considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.
Lead Product Manager-Technical MasterCardLead Product Manager-TechnicalO'fallon, MO$130,000–$221,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Product Manager- Technical (PM-T) roles at Mastercard are deeply technical and partner closely with Software Engineers, Technical Program Managers, User Experience, and cross-functional stakeholders to translate business needs into scalable, high-impact platform capabilities.
R -6H6HI3-Manufacturing Engineer 3 - 66R-Assembly and Installation SearchProsR -6H6HI3-Manufacturing Engineer 3 - 66R-Assembly and InstallationBerkeley, MO$56–$66 / hourTest capabilities within the Environmental Labs include vibrational/structural dynamics, acoustic, airflow systems, fuel flow systems, high temperature flow impingement, and environmental control chambers, where temperature, humidity, and pressure are varied. Education / Experience: Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement.
R -6B1BI3-Design and Analysis Engineer 3 - 664-Electronic Sys Design & Analysis SearchProsR -6B1BI3-Design and Analysis Engineer 3 - 664-Electronic Sys Design & AnalysisHazelwood, MO$60–$70.55 / hourUtilize Model-Based Systems Engineering (MBSE) tools such as DOORS, Cameo, and mathematical modeling and simulation to develop system definitions/architectures and perform trade studies (includes integration with interfacing engineering disciplines model based design tool sets). " 3+ years familiarity with electrical avionics system design including electrical systems and subsystems design, interface cable design between electrical system and platform, electrical hardware/software integration, coordination with vendors for part selection, and general test experience to do hardware/software testing of the system in a lab.
R -6B1BI3-Design and Analysis Engineer 3 - 664-Electronic Sys Design & Analy SearchProsR -6B1BI3-Design and Analysis Engineer 3 - 664-Electronic Sys Design & AnalyBerkeley, MO$62–$72 / hourAt client, our Electrical Engineers develop and test electronic and electrical system requirements using analytical and technical skills, translate requirements into system architectures and modify hardware and software designs for Boeing aircraft, unmanned vehicles and much more. Precision Engagement Systems (PES) including Direct Attack weapons (JDAM, SDB, MOP, HAAWC and associated derivatives) and Cruise Missiles (SLAM ER, Harpoon and development weapons).
Sr. System Engineer- ArcGIS EsriSr. System Engineer- ArcGISSaint Louis, MissouriDeploy and configure complex ArcGIS in a wide variety of environments across operation systems, cloud providers, security architectures, customer types and organizations, to meet the customer's service level agreement. Experience with Esri software including ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS and ArcGIS Runtime and their associates APIs or interfaces.
Senior Systems Engineer - Site Reliability Engineering Enterprise HoldingsSenior Systems Engineer - Site Reliability EngineeringSt. Louis, MissouriFull timeYou will be responsible for implementing enhancement changes, monitoring product health, long and short-term capacity planning, resolving production issues and designing initiatives planned to continue to evolve our services to align with our new API-first strategy. Overview: Enterprise Mobility is a leading provider of mobility solutions, owning and operating the Enterprise Rent-A-Car, National Car Rental and Alamo Rent A Car brands through its integrated global network of independent regional subsidiaries.
Learning Technologist CASE Management ConsultingLearning TechnologistSaint Louis, MissouriWorking experience and/or knowledge of content authoring tools (Adobe Suite), web development languages (HTML, JavaScript), and understanding of compression and optimization of audio/video, graphics, simulations, and other learning content across networks. - Design and develop learning solutions via multiple delivery methods and using ISD methodologies, multimedia principles, instructional technology tools, adult learning principles, and cognitive science theory and education research.
Principal Engineer - Systems Enterprise HoldingsPrincipal Engineer - SystemsSt. Louis, MissouriRemoteFull timeWTT responsibilities include physical and virtual devices (desktops/laptops, tablets, payment, printers, virtual workstations, etc.), workforce/productivity applications (email, unified communications, collaboration, etc.), identity solutions (Active Directory, Entra, AppSec, etc.), security capabilities (endpoint protection, secure coding tools, risk database, etc.), and related applications (AppSec, Startup Page, etc.). Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.
Lead Systems Engineer - Data Integration Enterprise HoldingsLead Systems Engineer - Data IntegrationSt. Louis, MissouriRemoteFull timeLouis, Enterprise Mobility together with its affiliate Enterprise Fleet Management manages a diverse fleet of 2.4 million vehicles and accounted for nearly $39 billion in revenue through a network of more than 9,500 fully-staffed neighborhood and airport rental locations in more than 90 countries and territories. Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.