Senior Full Stack Java Developer jobs in Belleville

A leading staffing firm in Maryland Heights is seeking a full stack developer with strong expertise in Java, Spring Boot, and ReactJS. You will design and maintain RESTful APIs while also building responsive user interfaces. The ideal candidate will possess robust problem-solving skills and a solid

ONSITE INTERVIEW IS MUST Position Title: Sr. Java Full Stack Developer Location: St. Louis, MO Duration: 6 12 Months contract with possibility of extension Role Individual contributor, devoting a substantial portion of their time to hands‑on work. Recognized as a subject matter expert and authority

SynergisticIT

Synergisticit Job Opportunity Since 2010 Synergisticit has helped jobseekers differentiate themselves by providing candidates the requisite skills and experience to outperform at interviews and clients. Here at SynergisticIT we just don't focus on getting you a tech job we make careers. In this mark

Agile Resources, Inc.

A technology resources firm is seeking a mid-to-senior Full Stack Engineer to work hybrid in St. Louis. The ideal candidate will have extensive experience with Java, Spring Boot, and Angular, and will be responsible for developing scalable applications in a regulated environment. This role offers a

SYNERGISTICIT wants every candidate to know that the Job Market is Challenging and to stand out, you need to have exceptional skills and technologies and that's where we come in to make sure you get the attention which you need Position open for all visas and US citizens We at Synergisticit understa

Saxon Global

Deep coding experience (6+ years) in at least 2 of the below programming languages: Java (Primary language for DDP Kafka streaming pipelines) NodeJS (Primary language for DDP VAE APIs) Python (Primary automation or scripting code) 3+ years of Confluent Kafka platform and Kafka Streaming. 3+ years of

TECHNOLOGY PARTNERS INC

Overview Technology Partners is currently seeking a talented Senior JavaScript Full Stack Developer. Do you have experience with JavaScript, Node.js, and React.js? Let us help you make your next big career move a reality! What You Will Be Doing As a Senior Full Stack Developer, you will be a key con

Summary Software engineers apply engineering principles and knowledge of programming languages to build software solutions for end users. Design, development, testing, and maintenance of software applications. Be part of a cross-functional team that includes other software engineers, as well as part

Mapfre

Summary: Software engineers apply engineering principles and knowledge of programming languages to build software solutions for end users. Design, development, testing, and maintenance of software applications. Be part of a cross-functional team that includes other software engineers, as well as par

Overview Java Developer - with AI Remote • 6+ months contract with high potential for extension. Pay range: $70 - $80/hr on W2. Our Fortune 500 client in USA is looking for hardworking, motivated talent to join their innovative team. Are you a Java Developer with a passion for collaborating with mul

Enterprise Holdings

Engineer 2 As an Engineer 2, you will design, develop, and modify many different elements of technology. You will be required to understand advanced methods, theories, and research techniques that establish ongoing direction and implementation of the technology vision and strategy. As an Engineer 2,

TECHNOLOGY PARTNERS INC

Technology Partners is currently seeking a talented Senior Full Stack Developer (C# .NET). Do you have experience with C# Development, .NET Core, and AWS? Let us help you make your next big career move a reality! What You Will Be Doing: You will work within the Research and Development (R&D) departm

Netrist Solutions, LLC.

Scott Air Force Base, United States | Posted on 03/06/2026 We are seeking a Senior FullStack Developer (Backend Emphasis) to support a command and control system for the Mobility Air Force. This role focuses on designing and maintaining mission-critical backend services in Java and .NET, building an

Description Headquartered in St. Louis, Missouri with more than 1,200 employees and nearing $2B in revenue, Alberici is a diversified construction company that partners with leading organizations throughout North America to build their most challenging and important projects. Since our founding in 1

A national recruiting company is seeking a passionate software developer to engage in all aspects of software development including analysis, development, and testing. The ideal candidate is eager to learn and collaborate with a team to tackle challenging problems. Proficiency in modern web technolo

Headquartered in St. Louis, Missouri with more than 1,200 employees and nearing $2B in revenue, Alberici is a diversified construction company that partners with leading organizations throughout North America to build their most challenging and important projects. Since our founding in 1918, Alberic

Lead Java Developer The primary purpose of this role is to develop and deliver best‑of‑breed authentication products for e‑commerce transactional use cases that drive uptake and penetration for the client’s products and revenue. Job Qualifications and Responsibilities: Build applications using open

Purple Drive

Exp: 4- 6 yearsKey Responsibilities: Design, develop, and maintain scalable applications using Angular (v14+), NgRx Store, and backend technologies (Java/Kotlin/Scala). Implement robust API integrations and ensure seamless communication between services. Write and maintain automated tests using fram

A leading technology solutions provider is seeking a Lead Java Developer in St. Louis to develop and deliver top-tier authentication products. The role involves building applications using frameworks like Spring Boot and Angular, applying advanced design patterns, and designing microservice architec

Please note that at this time, partners or corp to corp candidates cannot be considered. Why WWT? At World Wide Technology, we work together to make a new world happen. Our important work benefits our clients and partners as much as it does our people and communities across the globe. WWT is dedicat