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- ...Role: Java Developer (Backend) Location: O' Fallon, MO (Onsite from day 1) Duration: 6-12+ Months Job Description... ...critical production systems. • Solid understanding of modern API design and Restful principles • Fluent with git (preferred) or...SuggestedWork experience placement
Zortech Solutions
O Fallon, MO1 day ago - ...Title: Full Stack Java Developer Location: Ofallon, MO 63368 Type: Contract Duration: Long Term Project... .... 8 + years of experience in designing & Developing REST APIs and web services using Java, Spring Boot, and other emerging...SuggestedContract work
NR Consulting
O Fallon, MO16 hours ago - ...works to improve experience and metrics in ownership area Develop complete understanding of end-to-end technical architecture and... ...cases for advanced design patterns (e.g., service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading...SuggestedContract workLocal area
ShiftCode Analytics
O Fallon, MO1 day ago $60k - $135k
...Job Title: Senior Java Developer City: O Fallon State/Province: Missouri Posting Start Date: 4/6/26 Wipro... ...in Front end (HTML/CSS/JavaScript/React or Angular/ Rest API) & Backend (Spring boot, Hibernate, Microservices) i.e Full Stack...SuggestedMinimum wageLocal areaWipro
O Fallon, MO16 hours ago- ...Sr. Java Developer: Job Description: Key Skills and Experience: Strong hands on experience in Java(J2ee) Strong in webservices(microservices) , Rest API's, Oracle DB knowledge, Cloud native(preferably AWS or Azure) bility to drive end to end development...Suggested
Damco Solutions
O Fallon, MO4 days ago $122k - $207k
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 ...SuggestedFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO21 hours ago$84.8k
A technology consulting firm in Chesterfield is seeking a skilled software developer to create front-end applications using HTML, CSS, JavaScript, Angular, and React JS. The ideal candidate will hold a Master’s Degree in computer science or a related field and have experience...Suggested- A leading aerospace company is seeking an Entry Level Software Engineer for a contract position in Hazelwood, Missouri. The role involves designing and integrating AI capabilities within internal platforms. Candidates should have a Bachelor's degree in a relevant field ...SuggestedContract work
- ...technologies and/or in-house frameworks -- MUST • Experience in API testing (SOAP and MicroServices). • Experience in UI and... ...strategy with execution and provide secure service solutions by developing and using the latest technologies that thrive our resources to...Suggested
InterSources
O Fallon, MO2 days ago - ...Engineer requires: Test automation experience using open source technologies and/or in-house frameworks -- MUST Experience in API testing (SOAP and MicroServices). Experience in UI and Mobile Testing. Experience with test frameworks like Junit, TestNG. Familiarity...Suggested
Global Channel Management
O Fallon, MO1 day ago $122k - $207k
...we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase...SuggestedFull timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO21 hours ago- A leading service provider in St. Peters, Missouri is seeking an experienced Web App Designer/Developer to create compelling web applications. With 7+ years of experience in .NET technologies, candidates will develop solutions in a collaborative environment. The company...Suggested
$96k - $163k
...business operations is to be the production readiness steward for the platform. This is accomplished by closely partnering with developers to design, build, implement, and support technology services. A business operations engineer will ensure operational criteria like...SuggestedFull timePart timeImmediate startWorldwideFlexible hoursShift workWeekend workMastercard
O Fallon, MO21 hours ago$96k - $163k
...Operational Readiness Architect**, the mission is to ensure platform stability, health, and resilience. Key Responsibilities - Foster developer ownership and empower teams to build resilient, fault tolerant, scalable products. - Support developers during the build phase...SuggestedFull timeTemporary workPart timeWorldwideFlexible hoursShift workWeekend workMastercard
O Fallon, MO21 hours ago$96k - $163k
...business operations is to be the production readiness steward for the platform. This is accomplished by closely partnering with developers to design, build, implement, and support technology services. A business operations engineer will ensure operational criteria like...SuggestedFull timePart timeWorldwideFlexible hoursShift workMastercard
O Fallon, MO21 hours ago$52.5 - $75 per hour
A leading tech company is seeking a Full Stack Mid Developer for their Chesterfield location. The ideal candidate will have over 4 years of experience in developing cloud-based REST APIs using TypeScript or JavaScript, and at least 2 years in the AWS ecosystem. Responsibilities...Hourly pay- ...Strong communication skills and ability to work in a consulting/lead capacity with technical and nontechnical teams. Advanced API testing experience Nice to Have Skills & Experience Experience with Google Cloud Platform Telecom industry experience...Remote work
Insight Global
Maryland Heights, MO3 days ago $52.5 - $75 per hour
Technology Partners is currently seeking a talented Full Stack Mid Developer / Engineer. Do you have experience with AWS ecosystems, TypeScript, and developing cloud-based REST APIs? What You Will Be Doing As a Software Engineer on the Field Automation Engineering Team...- ...India. Under a new CEO, *** is committed to a transformative journey with 'Scale @ Speed' as our guiding principle. Title: Java Developer - Databricks consultants Location: Ofallon, MO Roles and responsibilities: Data Engineering with Medallion Architecture...
Yantran LLC
O Fallon, MO1 day ago - ...infrastructure within the Network Services Layer . Technical Leadership Develop technology strategies and roadmaps aligned with enterprise goals... ...of network service layer components, integration patterns, and API-driven architectures. Proven experience developing architecture...Hourly payPermanent employmentContract workLocal area
- A technology solutions company in Lake Saint Louis is seeking a passionate Network Administrator to design and support our network infrastructure. The role involves troubleshooting advanced network issues, providing customer service, and supporting a variety of network ...
- ...-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 testing. Biggest thing will be confidence with reading code and...Local area
ShiftCode Analytics
O Fallon, MO1 day ago - We are seeking a capable Full Stack Developer to strengthen our internal software development capability and provide long-term continuity... ...ongoing enhancements and maintenance Develop and maintain APIs, databases, and system integrations Support data handling, diagnostics...
$33 - $39 per hour
...growth and engagement. WHAT YOU'LL DO Design, build, and maintain data-driven applications using Python and Node.js Develop and support backend services and APIs for SIU and Payment Integrity use cases Manage and optimize data pipelines and storage with MongoDB and Oracle...Hourly payContract workImmediate startRemote workFlexible hours$55k - $90k
...of 2 years as a professional full stack web/interactive designer/developer. Bachelor’s degree in Computer Science or a related field (or... ...NET Core, along with Visual Studio. Skilled in Microsoft Web API. Strong expertise in Microsoft Entity Framework, Microsoft...Full timeWork at officeFlexible hoursCarShield
Saint Peters, MO1 day ago- ...ability to work collaboratively in a fast-paced environment. You will play a pivotal role in designing, developing, integrating, and maintaining an internal platform, APIs, and tools that enable data scientists and developers to integrate AI capabilities. A successful...Hourly payFull timeContract work
- ...and integrations. Define and enforce best practices for coding standards, testing, and deployment processes. Oversee development of APIs and microservices to ensure consistency, integration, and performance. Optimize system performance, scalability, and reliability post...
$78.75 - $83.25 per hour
...Systems Software Team in Hazelwood, MO. This position involves developing and maintaining next-generation training technologies for military... ..., and simulation frameworks. Skills in software testing, API development, and integration of hardware/software components....Hourly payFull timeContract workWork experience placement$84.8k
Job description Roles and Responsibilities Develop front end using HTML, CSS, JavaScript, Angular, React JS to support Single Page Applications... .... Develop web services (REST/SOAP) using frameworks like Web API, WCF, Jersey, Apache CXF, Node JS. Implement, manage and...Work experience placementMonday to Friday- ...resilient network topologies with redundancy, geographic failover, and traffic engineering. Develop and maintain network automation using Python, Ansible, Netconf, and API‑based configuration tools. Monitor backbone performance and perform deep root‑cause analysis...Work at office
