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$56 - $80 per hour
A leading tech company in Maryland Heights is seeking a Senior Full Stack Developer. In this role, you will develop scalable REST APIs and optimize databases while collaborating with product experts to deliver high-quality software. The ideal candidate has over 10 years...Suggested$77 - $110 per hour
...software engineering. The ideal candidate will have expertise in Go, Kafka, and data-intensive APIs with a focus on cloud-based solutions. Responsibilities include developing innovative agricultural software and creating distributed data-processing systems. This role offers...SuggestedHourly pay$88k - $130k
...relationship strategies. Knowledge of the customer journey and ability to map touchpoints to the sales process. Basic understanding of API and REST. Basic knowledge of database architecture. Experience in ITIL or formal SDLC methodologies. Excellent oral, written, and...SuggestedFull timeContract workTemporary workWork at officeFlexible hoursMidland States Bank
Cottleville, MO4 days ago- Summary Mid Software Developer O’Fallon, IL Are you ready to enhance your skills and build your career in a rapidly evolving business climate... ...Experience with TypeScript, Node.js/Express, ASP.NET Core Web API, Swagger (Open API), C#, and Postgres. Familiarity with REST...SuggestedWork at officeWork from homeHome office
- ...Front End UI Developer (Hybrid-Remote) O'Fallon, Missouri, United States About the Job Front End UI Developer (Hybrid-Remote) *24... ...& reusable Experience with Qlik Sense business intelligence API''s Top Required Technical Skills: Front End UI Developer...SuggestedContract workRemote workFlexible hours
Nanosoft Consulting
O Fallon, MO4 days ago - ...Description Job Description Key Responsibilities: Design, develop, and maintain backend applications using Java 8 and the Spring... ...-time streaming and pipelines). Solid understanding of REST APIs and Microservices. Experience with SQL and NoSQL databases....Suggested
Jobs for Humanity
O Fallon, MO1 day ago - ...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, MO2 days ago - ...Job Title: Java Backend Developer Location: O'Fallon, MO, USA Years of Experience: 7 to 10 Years Job Summary: We are seeking... ...and streaming applications. Solid understanding of RESTful APIs and microservices architecture. Proficient in database technologies...Suggested
Yantran LLC
O Fallon, MO3 days 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, MO1 day ago - ...Onsite Project Scope: Seeks a Senior Software Developer who will be a crucial part of our software team. The selected... ...language. ~8 + years of experience in designing & Developing REST APIs and web services using Java, Spring Boot, and other emerging...Suggested
Procyon TS
O Fallon, MO3 days 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, MO12 hours ago $212k - $339k
...SLAs, observability, and incident management. • Build, lead, and develop a high-performing organization of engineering managers and... ...• Deep expertise in modern application architectures, including APIs, microservices, event-driven systems, batch processing, and data...SuggestedFull timePart timeWorldwideFlexible hours3 days per weekMastercard
O Fallon, MO17 hours ago- ...Role: - Senior Java Developer Location: - O'Fallon, MO Duration: - Long term Required Skills - Agile, API, Cloud, Cucumber, J2EE, Java, Junit, Microservices, Selenium, Spring Boot, SQL What are your top three required technical skills?...SuggestedWork experience placement
Maintec Technologies
O Fallon, MO2 days ago - ...Senior Java Developer An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud... ...patterns, and performance optimization. # Microservices and REST API Proficiency: Skilled in developing web services, particularly...Suggested
Damco
O Fallon, MO3 days ago $254k - $407k
...systems. Strong background in cloud platforms (AWS, Azure, or GCP) and hybrid architecture environments. Experience designing APIs, integration patterns, and enterprise-scale service orchestration solutions. Hands-on experience with data platforms, streaming systems...SuggestedFull timePart timeWorldwideFlexible hours3 days per weekMasterCard
O Fallon, MO2 days 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...- ...Overview The IT Department is seeking a motivated Web Developer with strong integration experience, capable of supporting both Shopify... ...to integrate with third-party platforms and Web services/APIs. Working with vendors, as necessary, to implement solutions...Work at office
True Manufacturing
O Fallon, MO3 days ago - 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 ...Contract 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...
InterSources
O Fallon, MO3 days ago $54 - $55 per hour
...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...Global Channel Management
O Fallon, MO2 days ago$170k - $281k
...with usage of AI with deep expertise in Fraud Rules practices. You will work closely with senior leaders and engineering teams to develop solutions aligned with the AI & DPE technology roadmap. The ideal candidate brings experience in modernizations and large scale...Full timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO17 hours ago$140k - $231k
...Summary Lead Software Engineer Overview Be part of the Artificial Intelligence & Decision Processing Engineering team developing new capabilities for MasterCard's Decision Management Platform, which serves as the core for multiple business solutions to combat...Full timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO17 hours ago- ...Lead Java Developer - Security Concept Location: O'Fallon, MO Long Term Contract Role & Responsibilities: Plan, design and develop... ...shared web service platforms, including SOAP and RESTful API's Extensive experience with the following technologies and frameworks...Long term contract
Keylent Inc
O Fallon, MO3 days ago $115k - $184k
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 ...Full timePart timeWork experience placementWorldwideFlexible hoursMastercard
O Fallon, MO17 hours ago$92k - $147k
...Contribute to the design, development, testing, and implementation of software solutions under guidance from senior engineers • Develop and maintain application code in accordance with established engineering, quality, and security standards • Create and execute unit...Full timePart timeWorldwideFlexible hoursMastercard
O Fallon, MO17 hours ago- ...the next level! Location: O’Fallon, IL Job Title: Jr Software Developer Chenega Agile Real‑Time Solutions (CARS) is seeking a Jr Software... ...Experience with TypeScript, Node.js/Express, ASP.NET Core Web API, Swagger (OpenAPI), C#, and Postgres. Familiarity with REST principles...Work at officeWork from homeHome office
- ...Experience with apex, LWC, Java and/or JavaScript Salesforce Developer certified required and any additional certifications are great!... ...and functionality Experience working with the Salesforce APIs and building services to connect Salesforce with other systems....
Insight Global
Berkeley, MO4 days ago - ...Backend Python Developer Day 1 relocation-All 5 days onsite at Bridgeton, MO Responsibilities Lead the Design... ...-side logic, ensuring high performance and scalability. API Development: Design and implement RESTful APIs to facilitate communication...Relocation
United IT Solutions
Bridgeton, MO2 days ago $115k - $184k
...capabilities and effectiveness of solutions • Design effective rule strategies to identify and provide solutions for customers • Develop and implement rule changes in an agile environment • Validate rule changes against transactions data and ensure quality is...Full timePart timeWork experience placementWorldwideFlexible hoursMastercard
O Fallon, MO17 hours ago$205k
...high-performing engineering team, set technical direction, and partner closely with product and architecture to implement cloud-native, API-first solutions. In Mastercard’s dynamic, inclusive culture, you’ll mentor engineers, champion engineering best practices, and...WorldwideMastercard
O Fallon, MO8 days ago
