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$119.77k - $140.9k
...new skills and discover what you excel at—all from Day One.Job DescriptionWhat You'll DoAct as the technical SME for our enterprise API ecosystem, leading engineering efforts across Apigee OPDK, Apigee Hybrid (Azure), and Apollo GraphQL platforms.Design and deliver secure...SuggestedFull timeWork experience placementLocal area3 days per weekUS Bank
Earth City, MO4 days ago$115k - $184k
...design, architecture, testing, and delivery. Create RESTful APIs and integrations that connect data catalog tools with enterprise... ...business glossaries, search, enrichment, and bulk data uploads. Develop services that retrieve, transform, store, and transfer data...SuggestedFull timePart timeFlexible hoursDynamic Yield
O Fallon, MO4 days ago- ...JavaScript, HTML, CSS, NgRx state management, and Jest unit testing. The candidate will develop scalable, responsive web applications and integrate frontend solutions with REST APIs while following coding standards and best practices. Roles and Responsibilities Design...SuggestedFull time
PB consulting
O Fallon, MO11 days ago - ...Roles & Responsibilities Design, develop, and maintain scalable web applications using Angular 15+ and React where applicable. Build... ...UI components. Integrate frontend applications with RESTful APIs and backend services . Implement application state...SuggestedFull time
Techvilla Solutions
O Fallon, MOa month ago $140k - $231k
...solutions • Define high- and low-level design artifacts, including APIs, data models, system interactions, and component boundaries •... ...design, and maintainability • Build and enhance internal developer platforms using Backstage or similar frameworks, leveraging...SuggestedFull timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago- ...Required Experience: You have experience building applications using Java and PCF You have extensive experience with Java APIs Some experience with web technologies, including HTML, Javascript and front-end frameworks such as Angular Optimizing applications...Suggested
Yantran LLC
O Fallon, MO2 days ago $115k - $184k
...Role As a Senior Software Engineer, you will: • Design, develop, and maintain scalable test frameworks and automation solutions... ...All About You • Experience building applications and REST APIs using Java, Spring Boot, and Spring Data JPA • Strong foundation...SuggestedFull timePart timeImmediate startWorldwideFlexible hoursMasterCard
O Fallon, MO2 days ago- ...The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned... ..., and scalability improvements across applications, APIs, databases, and cloud services. • Apply advanced data structures...SuggestedFull timePart timeFlexible hours
Dynamic Yield
O Fallon, MO5 days ago $72k - $115k
...the Role We are looking for a motivated Software Engineer to develop, test, maintain, and support secure, reliable, high-performing,... ..., maintainability, and engineering practices. • Contribute to APIs, microservices, distributed applications, and event-driven solutions...SuggestedFull timePart timeWork experience placementImmediate startWorldwideFlexible hoursMasterCard
O Fallon, MO3 days ago- ...Work closely with software engineers, product managers, and other stakeholders to identify and understand the API requirements. Design and develop the API interface and documentation using programming languages like Java, Python, or Ruby on Rails. Implement RESTful...Suggested
Keylent Inc
O Fallon, MO5 days ago - ...Program Overview: Sustainability and Innovations Program aims to develop Mastercard sustainability solutions and innovative products for... ...organization skills. Key Technology Focus Areas: Java, REST API, Pivotal Cloud Foundry, Jenkins, Spring, Oracle (or any other...SuggestedLocal area
Samprasoft
O Fallon, MO5 days ago - ...Java Lead Experience Required - 6+ Years Must Have Technical/Functional Skills Object-oriented Programming Web services & API standards (REST/OAuth/JSON) Programming & Scripting Languages (2 or more of Java, C++, Scala, JS, Python, Shell*) Spring,...Suggested
ClifyX
O Fallon, MO5 days ago - ...Technical solution & application architecture & design Development, review & ownership of architecture & design artifacts (SAD, API Specification etc.) Actively find ways (new technologies, tools, frameworks) to improve software solutions Establish design, architecture...SuggestedLocal area
Zortech Solutions
O Fallon, MO4 days ago $63 - $90 per hour
...Partners is currently seeking a talented Senior .NET Full-Stack Developer. Do you have experience building large-scale distributed... ...with Entity Framework, Dependency Injection, and cloud-hosted APIs. Experience with AWS services: Lambda, S3, SQS, SNS, Kafka, Step...SuggestedTechnology Partners
Chesterfield, MO5 days ago$92k - $147k
...The Mastercard Operational Intelligence Program is engaged in developing innovative solutions through technology that keeps Mastercard positioned... ..., tuning, and scalability improvements across applications, APIs, databases, and cloud environments. • Apply data structures,...SuggestedFull timePart timeImmediate startWorldwideFlexible hours$115k - $184k
...with speed and agility as part of a small team. This will involve developing high-performing, highly scalable software solutions and... ...workflows and pipelines, and apply standardized pipelines via APIs to achieve CI and CD using industry standard tools (e.g., Jenkins...Full timePart timeWorldwideFlexible hoursMastercard
O Fallon, MOa month ago- ...middleware solutions . The candidate will be responsible for designing, developing, and delivering scalable integration solutions across... ...Anypoint Platform , or equivalent. Develop and maintain APIs, web services (SOAP/REST), and data transformation pipelines ....
Yantran LLC
O Fallon, MO3 days ago - ...Software Engineering (O'Fallon, MO) Position Duties : Design and develop scalable, resilient systems using reactive, event-driven... ...and infrastructure automation; TDD and BDD methodologies; MVC, API Gateway, Dependency Injection, Intercepting Filter; SOLID principles...Remote workWork from home
Mastercard Technologies, LLC
O Fallon, MO21 hours ago $172.55k - $249.55k
...technologies, particularly AWS, along with a proven track record in developing repeatable and reusable architectural frameworks. Join us in... ...self-service analytics platforms using modern BI tools and APIs that empower business users with governed access to trusted data...Permanent employmentFull timeVisa sponsorshipWork visaRelocation packageFlexible hoursShift workBoeing
Saint Charles, MO1 day ago- ...is partnering with a Saint Louis, MO-based client undergoing a major technology modernization initiative. We are seeking .NET API Developers to support a high-impact effort transitioning from a legacy platform to a modern, cloud-based architecture. This is a 6-month engagement...Hourly payContract workRemote workMonday to Friday
$152k - $258k
...as Code solutions using platforms like Terraform, Ansible, Chef to automate provisioning across cloud and on prem environments. Develop reusable modules, playbooks, and automation libraries that standardize infrastructure deployment patterns. Engineer and enhance...Full timePart timeImmediate startFlexible hoursDynamic Yield
O Fallon, MO17 hours ago- ...deploying and operating distributed applications using Helm charts, developing and maintaining Kubernetes operators where appropriate, and... ...workflows using tools such as GitHub, Jenkins, Codefresh, APIs, and GitOps-based approaches. Experience with Infrastructure...Local area3 days per week
The Timberline Group Company
Maryland Heights, MO3 days ago - ...th { } Java DeveloperJob OverviewWe are seeking multiple Java Developers to support the continued development and enhancement of... .../ Nice-to-Have SkillsSpring BootExperience developing RESTful APIs and web servicesExperience with Git and version control best practicesFamiliarity...
TalentsBridge
Maryland Heights, MO4 days ago $115k - $184k
...continuous retraining workflows to ensure reliable AI delivery. • Develop high-performance Python backend services for LLM inference... ...Excellent Python engineering skills including async programming, API development (FastAPI), and building inference-ready microservices...Full timePart timeWorldwideFlexible hoursMasterCard
O Fallon, MO5 days ago$116k - $174k
...organization's application ecosystem and reduce risk across WWT-developed and WWT-operated software. As a Senior Application Security Engineer... ..., hashing versus encryption. Strong command of and web API internals - request/response semantics, auth flows (OAuth2/OIDC,...Full timeRemote workFlexible hoursShift workWorld Wide Technology
Maryland Heights, MO5 days ago- ...Partners is currently seeking a talented Full Stack Typescript Developer (Node/React). Do you have experience developing systems using Typescript... ..., design and develop database solutions, and implement JSON APIs. Your work will support agricultural research and automation...Full time
Technology Partners
Chesterfield, MO5 days ago - ...teams.Guide teams in adopting modern front-end technologies and API-first architectures.Lead design reviews, architecture governance... ...development tools such as Kiro, Claude, GitHub Copilot, Amazon Q Developer, or similar technologies to improve engineering productivity and...Work at officeLocal areaWork from homeVisa sponsorship1 day per week
Spectrum Charter
Maryland Heights, MO1 day ago - ...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...Shift work
Samprasoft
O Fallon, MO5 days ago $63 - $90 per hour
...0Technology Partners is currently seeking a talented Full-Stack Developer (Contract). Do you have experience modernizing legacy systems or... ...Experience:Backend Development: Strong .NET/C# experience with API development. Frontend Development: Modern web application development...Contract workTechnology Partners
Chesterfield, MO5 days ago- ...harmonization utilities, storage and compute infrastructure, and the APIs and agentic (MCP) interfaces that let both humans and AI agents... ...platform-internal needs and consumption by downstream teams. Develop reusable ingestion, cleansing, and harmonization frameworks/...Ongoing contractFull timeWorldwide
