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Pacific Northwest National Laboratory
HPC Software Engineer 3- Research Computing
Pacific Northwest National Laboratory Jefferson City, MO
Overview At PNNL, our core capabilities are divided among major departments that we refer to as Directorates within the Lab, focused on a specific area of scientific research or other function, with its own leadership team and dedicated budget. Our directorates related to Mission Support & Operations include Office of General Counsel, Business Services, Communications and External Engagement, Operational Systems, Communications and Information Technology, and Performance Management. At PNNL, our Computing and Information Technology organization is redefining how we work and innovate by reimagining the digital workplace. We empower research and streamline operations-making both faster, smarter, and more efficient-so our professionals can tackle some of the world's toughest challenges in science, energy, and national security. Our experts in AI, cybersecurity, design, and engineering work side by side, using real-time insights and human-centered design to break down...

May 26, 2026
Pacific Northwest National Laboratory
Software engineer - research
Pacific Northwest National Laboratory Jefferson City, MO
Overview At PNNL, our core capabilities are divided among major departments that we refer to as Directorates within the Lab, focused on a specific area of scientific research or other function, with its own leadership team and dedicated budget. Our directorates related to Mission Support & Operations include Office of General Counsel, Business Services, Communications and External Engagement, Operational Systems, Communications and Information Technology, and Performance Management. At PNNL, our Computing and Information Technology organization is redefining how we work and innovate by reimagining the digital workplace. We empower research and streamline operations-making both faster, smarter, and more efficient-so our professionals can tackle some of the world's toughest challenges in science, energy, and national security. Our experts in AI, cybersecurity, design, and engineering work side by side, using real-time insights and human-centered design to break down...

May 26, 2026
Tanaq Health
Senior DevOps Engineer (AI/Cloud Modernization)
Tanaq Health Jefferson City, MO
Senior DevOps Engineer (AI/Cloud Modernization) Fully Remote Job Type Full-time Description Overview Tanaq Technical Services (TTS), a division of St. George Tanaq (SGT)Corporation, is an 8(a) Alaskan Native Small Business that specializes in delivering Enterprise Integrated Technology Solutions and Support Services to the Federal Government. TTS's innovative approach combines proactive strategies, efficient processes, and emerging technologies to deliver seamless, integrated services for our clients. TTS prides itself in being Mission Driven, People Focused. To learn more about us, visit https://tanaq.com/tanaq-technical-services. About the Role We are seeking a Senior DevOps Engineer to provide AI/Cloud Modernization support the Department of Housing and Urban Development's Office of the Chief Information Officer (HUD OCIO). The Senior DevOps Engineer will lead the design, implementation, and operationalization of HUD's DevOps platform and cloud-native...

May 24, 2026
Or
Senior Principal AI Agent / ML Software Engineer (OCI)
Oracle Jefferson City, MO
Job Description The Senior Principal AI Agent / ML Software Engineer is a Senior Staff-level, hands-on technical leadership role responsible for defining, building, and operating next-generation AI systems on Oracle Cloud Infrastructure (OCI). This person will set architecture and engineering direction for production-grade agentic AI platforms, autonomous workflows, scalable inference infrastructure, and enterprise AI applications used in large-scale, business-critical environments. This role requires a proven engineer who can translate ambiguous product and platform goals into durable technical strategy, lead multi-team execution without direct authority, and remain deeply hands-on in design, code, reviews, operations, and incident follow-up. The ideal candidate combines deep distributed systems experience with practical AI-native engineering, including orchestration of LLMs, tools, APIs, memory, retrieval, evaluation, guardrails, and cloud services. The expectation is to...

May 24, 2026
Or
OCI Software Engineer Intern - OVIP
Oracle Jefferson City, MO
Job Description Veterans and Military Spouses belong at Oracle This is a place where your military experience and talent will help you thrive. Our culture of inclusion values the skills that veterans bring to our workforce and empowers you to use them to transform the world for the better. Get a head start on your civilian career today. About the Oracle Veteran Internship Program (OVIP): Oracle is proud to sponsor an internship and integration program that exposes transitioning military veterans and active-duty Military Spouses new to the corporate culture, provides hands-on job-skill training and experience, and offers enhanced professional and personal development. At Oracle, we are committed to the development and professional growth of our veterans and military spouses. Our paid internship program is specifically designed to aid military veterans, transitioning servicemembers and active-duty military spouses new to the corporate sector in their transition to a...

May 24, 2026
MasterCard
Senior Software Engineer - Java Full Stack Engineer
MasterCard O'Fallon, MO
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 secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer - Java Full Stack Engineer All About Us MasterCard is a technology company in the global payments business. We connect consumers, financial institutions, merchants, governments, and businesses worldwide and enable them to use secure and convenient electronic forms of payment. Join the industry’s most passionate, motivated & engaged global team - Our employees are encouraged to drive innovation every day in support of...

May 24, 2026
Computer Aid, Inc.
Senior Frontend Web Developer
Computer Aid, Inc. Jefferson City, MO
Senior Frontend Web Developer Req number: R7733 Employment type: Full time Worksite flexibility: Remote Who we are CAI is a global services firm with over 9,000 associates worldwide and a yearly revenue of $1.3 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right-whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise. Job Summary We are looking for a motivated Senior Frontend Web Developer ready to take us to the next level! If you have experience designing, developing, testing and implementing web and API-based solutions and are looking for your next career move, apply now. Job Description We are looking for a Senior Frontend Web Developer to design,...

May 24, 2026
MasterCard
Senior software engineer - java full stack engineer
MasterCard O'Fallon, MO
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 secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer - Java Full Stack Engineer All About Us MasterCard is a technology company in the global payments business. We connect consumers, financial institutions, merchants, governments, and businesses worldwide and enable them to use secure and convenient electronic forms of payment. Join the industry’s most passionate, motivated & engaged global team - Our employees are encouraged to drive innovation every day in support of...

May 24, 2026
Tanaq Health
Senior devops engineer / cloud
Tanaq Health Jefferson City, MO
Senior DevOps Engineer (AI/Cloud Modernization) Fully Remote Job Type Full-time Description Overview Tanaq Technical Services (TTS), a division of St. George Tanaq (SGT)Corporation, is an 8(a) Alaskan Native Small Business that specializes in delivering Enterprise Integrated Technology Solutions and Support Services to the Federal Government. TTS's innovative approach combines proactive strategies, efficient processes, and emerging technologies to deliver seamless, integrated services for our clients. TTS prides itself in being Mission Driven, People Focused. To learn more about us, visit https://tanaq.com/tanaq-technical-services. About the Role We are seeking a Senior DevOps Engineer to provide AI/Cloud Modernization support the Department of Housing and Urban Development's Office of the Chief Information Officer (HUD OCIO). The Senior DevOps Engineer will lead the design, implementation, and operationalization of HUD's DevOps platform and cloud-native...

May 24, 2026
Or
Senior principal agent / software engineer
Oracle Jefferson City, MO
Job Description The Senior Principal AI Agent / ML Software Engineer is a Senior Staff-level, hands-on technical leadership role responsible for defining, building, and operating next-generation AI systems on Oracle Cloud Infrastructure (OCI). This person will set architecture and engineering direction for production-grade agentic AI platforms, autonomous workflows, scalable inference infrastructure, and enterprise AI applications used in large-scale, business-critical environments. This role requires a proven engineer who can translate ambiguous product and platform goals into durable technical strategy, lead multi-team execution without direct authority, and remain deeply hands-on in design, code, reviews, operations, and incident follow-up. The ideal candidate combines deep distributed systems experience with practical AI-native engineering, including orchestration of LLMs, tools, APIs, memory, retrieval, evaluation, guardrails, and cloud services. The expectation is to...

May 24, 2026
Computer Aid, Inc.
Software Developer
Computer Aid, Inc. Jefferson City, MO
Software Developer Req number: R7709 Employment type: Full time Worksite flexibility: Remote Who we are CAI is a global services firm with over 9,000 associates worldwide and a yearly revenue of $1.3 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right-whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise. Job Summary As a RPG Developer, you will be responsible for application development, maintenance, and modernization of mission-critical iSeries-based systems. Job Description We are seeking an experienced Senior Developer with deep expertise in RPG development on the IBM iSeries (AS/400) platform . This role is supporting a large-scale...

May 22, 2026
Computer Aid, Inc.
Software developer
Computer Aid, Inc. Jefferson City, MO
Software Developer Req number: R7709 Employment type: Full time Worksite flexibility: Remote Who we are CAI is a global services firm with over 9,000 associates worldwide and a yearly revenue of $1.3 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right-whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise. Job Summary As a RPG Developer, you will be responsible for application development, maintenance, and modernization of mission-critical iSeries-based systems. Job Description We are seeking an experienced Senior Developer with deep expertise in RPG development on the IBM iSeries (AS/400) platform . This role is supporting a large-scale...

May 22, 2026
WW
Senior Developer (St. Louis)
World Wide Technology Healthcare Solutions St. Louis, MO
REQUIRED SKILLS: Bachelor's degree in Computer Science, Information Systems, or a related field, or equivalent practical experience, with 5 + years of software development experience. Proficiency in JavaScript/Node.js, Python, or Java, with experience designing and consuming APIs, integrating enterprise systems, and supporting production environments. Experience with workflow, orchestration, or automation platforms; familiarity with cloud-native or containerized environments and enterprise data or reporting platforms. Exposure to AI-enabled solutions, LLMs, or AI-assisted development tools; prior experience mentoring developers or leading technical initiatives is preferred. Strong analytical, communication, and collaboration skills with the ability to work independently and cross-functionally. Experience designing scalable architecture Previous experience working with APIs, integrations, and data layers Experience with AI-enabled applications is preferred...

May 21, 2026
PE
Senior Software Engineer
Pearson Education Services Jefferson City, MO
Software Engineer (Full Stack) - Data-Driven Systems Location: United States (Remote or Hybrid, depending on contract) Experience: ~2+ years (motivated early-career engineers encouraged to apply) Why This Role We build software that operates at statewide scale to move, and score, and aggregate large volumes of data in support of public-facing programs used by millions. This is an opportunity to work on meaningful, long-lived platforms where performance, reliability, and data integrity matter , and where your work has real-world impact. We're looking for a full stack engineer who enjoys working across the stack, values clean APIs, and takes pride in building software that is both fast and correct . What You'll Do Design, build, and maintain data-intensive web applications used across statewide contracts Develop backend services in Java , with a strong emphasis on well-designed, well-documented APIs Build modern, responsive user...

May 19, 2026
Or
Principal Software Engineer - Oracle HDI Analytics Platform Infrastructure Engineering & Reliability
Oracle Jefferson City, MO
Job Description U.S. citizenship is required for this position, as the successful candidate will be required to obtain (and maintain) a U.S. government security clearance after hire. Location: [Remote] About the Role Join Oracle's Health Data Intelligence (HDI) team as a Senior Software Engineer (IC4) and drive the reliability, scalability, and innovation of our world-class analytics platform infrastructure. In this individual contributor role, you'll architect, build, and transform cutting-edge systems that power healthcare analytics, ensuring seamless performance across massive datasets and diverse cloud environments. Collaborate with cross-functional teams to deliver robust solutions that enable business intelligence, reporting, and data-driven insights for global healthcare leaders. Required Skills Infrastructure & Reliability: Expertise in designing, implementing, and optimizing high-availability infrastructure with fault tolerance and...

May 18, 2026
Or
Principal software engineer - oracle engineering
Oracle Jefferson City, MO
Job Description U.S. citizenship is required for this position, as the successful candidate will be required to obtain (and maintain) a U.S. government security clearance after hire. Location: [Remote] About the Role Join Oracle's Health Data Intelligence (HDI) team as a Senior Software Engineer (IC4) and drive the reliability, scalability, and innovation of our world-class analytics platform infrastructure. In this individual contributor role, you'll architect, build, and transform cutting-edge systems that power healthcare analytics, ensuring seamless performance across massive datasets and diverse cloud environments. Collaborate with cross-functional teams to deliver robust solutions that enable business intelligence, reporting, and data-driven insights for global healthcare leaders. Required Skills Infrastructure & Reliability: Expertise in designing, implementing, and optimizing high-availability infrastructure with fault tolerance and...

May 18, 2026
Or
Principal Software Engineer - Java Platform Engineering - US
Oracle Jefferson City, MO
Job Description Join Oracle Health Applications and help build the next generation of cloud-native EHR platforms that directly improve clinical outcomes. We're looking for senior engineers with deep Java expertise, exceptional debugging and problem-solving skills, and a passion for mentoring and elevating other developers. Experience with Python is also valued. You'll work at the intersection of distributed systems, cloud infrastructure, and applied AI to deliver intelligent, scalable, and resilient healthcare solutions. Full-time | US Remote No sponsorship available - candidates must be US Citizens or Green Card holders. Responsibilities Senior Principal Engineer - Cloud, AI & Healthcare Platforms (US Remote) If you're the kind of engineer who loves solving hard production problems, mentoring strong teams, and building systems that truly matter, this is the role that keeps senior developers engaged. Oracle Health is building next-generation...

May 17, 2026
Ad
Full time
 
Senior Software Engineer
Addi Kansas City, MO
Senior Software Engineer About Us At Addi, we are pioneering the future of advertising through cutting-edge AI. Our platform empowers brands to produce broadcast and streaming-quality audio and visual ads in seconds, eliminating the need for studios, voice actors, or complex production processes. We're more than just developers, we're innovators committed to transforming how brands connect with audiences. Our collaborative environment encourages curiosity and agility, allowing your ideas to directly shape the future of AI-driven media. You'll work across generation pipelines, ad-platform integrations, custom server-driven UI (SDUI), and our observability and reliability stack. Expect feature work alongside substantive core engineering. You’ll write, refactor and simplify code, improve and redesign systems, reconsider inherited assumptions, research and run experiments, and make things faster and more efficient. Small team, carefully chosen. We hire engineers fluent...

May 17, 2026
Or
Network Developer
Oracle Jefferson City, MO
Job Description Designs and develops network systems for small and large-scale enterprise, data center, or cloud-based environments independently, collaborating with vendors and internal groups to validate configurations. Contributes business logic to automation frameworks for testing and operations independently, automating network tasks and reviewing dashboards to monitor network health. Independently develops and implements test cases and strategies, guiding junior engineers, conducting break-fix validation, and gathering and innovating compliance data collection. Implements and defines requirements for monitoring network health using dashboards and alerting systems, conducts incident response and root cause investigations, and develops tools for frontline support teams. Collaborates with project managers to achieve milestones, guides junior engineers, contributes to incident response and RCA documentation, and ensures networking standards adherence independently. Analyzes...

May 16, 2026
PT
Contract
 
Field Systems Software Engineer
Primary Talent Partners Chesterfield, MO
Primary Talent Partners has a new contract opening for a Field Systems Software Engineer with our life sciences client in Chesterfield, MO. This is a 12-month contract with a potential for extension. Pay: $53.00 - $58.00/hr ; W2 contract, no PTO, no Benefits. ACA-compliant supplemental package available for enrollment. Candidates must be legally authorized to work in the United States and must be able to sit on Primary Talent Partners W2 without sponsorship. Description: About the Team Our Global Breeding Automation Engineering Team is a group of technologists passionate about creating the systems that fuel the farm of the future. We are reimagining and rebuilding our suite of field and lab technologies for digital agriculture—geospatial, connected, automated, and cognitive—where every plant matters. Our work brings together machines, agronomists, breeders, scientists, and engineers to deliver solutions that transform the customer experience. We are...

May 14, 2026
PT
Contract
 
Field systems software engineer
Primary Talent Partners Chesterfield, MO
Primary Talent Partners has a new contract opening for a Field Systems Software Engineer with our life sciences client in Chesterfield, MO. This is a 12-month contract with a potential for extension. Pay: $53.00 - $58.00/hr ; W2 contract, no PTO, no Benefits. ACA-compliant supplemental package available for enrollment. Candidates must be legally authorized to work in the United States and must be able to sit on Primary Talent Partners W2 without sponsorship. Description: About the Team Our Global Breeding Automation Engineering Team is a group of technologists passionate about creating the systems that fuel the farm of the future. We are reimagining and rebuilding our suite of field and lab technologies for digital agriculture—geospatial, connected, automated, and cognitive—where every plant matters. Our work brings together machines, agronomists, breeders, scientists, and engineers to deliver solutions that transform the customer experience. We are...

May 14, 2026
Or
Principal Software Engineer
Oracle Jefferson City, MO
Job Description Oracle Cloud Infrastructure (OCI) is building the next generation of AI native engineering systems powering cloud operations, infrastructure automation, and developer productivity at scale. We are looking for a Principal Software Development Engineer (IC4) who operates as an AI native builder. This is not a traditional software engineering role centered on manual coding. Engineers on this team use AI assisted development, coding agents, and automation first workflows as the default mode of software creation. This role focuses on rapidly building intelligent systems, internal platforms, operational tooling, and cloud native services using modern AI driven engineering practices. You will work across distributed systems, automation platforms, developer experience, and operational intelligence to dramatically improve engineering velocity, reliability, and scale. Engineers on this team are expected to deeply integrate LLMs, coding copilots, agentic IDEs, and...

May 12, 2026
Or
Principal software engineer
Oracle Jefferson City, MO
Job Description Oracle Cloud Infrastructure (OCI) is building the next generation of AI native engineering systems powering cloud operations, infrastructure automation, and developer productivity at scale. We are looking for a Principal Software Development Engineer (IC4) who operates as an AI native builder. This is not a traditional software engineering role centered on manual coding. Engineers on this team use AI assisted development, coding agents, and automation first workflows as the default mode of software creation. This role focuses on rapidly building intelligent systems, internal platforms, operational tooling, and cloud native services using modern AI driven engineering practices. You will work across distributed systems, automation platforms, developer experience, and operational intelligence to dramatically improve engineering velocity, reliability, and scale. Engineers on this team are expected to deeply integrate LLMs, coding copilots, agentic IDEs, and...

May 12, 2026
PE
Software Engineer III
Pearson Education Services Jefferson City, MO
Job Title: Senior Windows Engineer (Endpoint Management & Modern Workplace) Job Location: Durham, NC Overview We are seeking an experienced Senior Windows Engineer to join our team and support a large-scale, enterprise environment of approximately 20,000 Windows endpoints. This role is critical in maintaining, modernizing, and optimizing our Microsoft-based infrastructure, with a strong focus on endpoint management, automation, and end-user experience. Key Responsibilities Design, implement, and manage enterprise endpoint solutions using Microsoft Intune and related Microsoft Endpoint Manager technologies Administer and support a fleet of ~20,000 Windows devices across a distributed enterprise environment Lead Windows OS lifecycle management, including deployment, patching, upgrades, and security compliance Develop, maintain, and optimize advanced PowerShell scripts for automation, reporting, and operational efficiency Manage and...

May 11, 2026
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