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Backend Full Stack Engineer Jobs in Missouri (NOW HIRING)

Stereotaxis

Full Stack Developer

Saint Louis, MO · On-site

Shift Type Job Title Full Stack Developer Education Bachelor's Degree Location Stereotaxis - St ... This role is expected to be comfortable around both front-end and back-end coding languages ...

TEKsystems

Full Stack .Net Developer

Wildwood, MO · Remote

$140K - $160K/yr

We are seeking a Full Stack Software Developer with deep expertise in backend services, API design, React/TypeScript, and applied AI--along with a strong understanding of SharePoint's development ...

Jobgether

As a senior full stack developer, you will contribute across the entire application lifecycle, building scalable backend services, modern web interfaces, and cloud-based solutions. You will ...

CGI

Full Stack Java Developer

Kansas City, MO · On-site

$51.25 - $66/hr

Full Stack Java Developer This role will require someone at our client site 5 days a week in ... Design and implementation of API/ microservices and backend components. Development and unit ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

Synthesis Systems

Full Stack Java Developer

Creve Coeur, MO

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful candidate will also provide best practices to design single-page architecture (SPA) applications and micro ...

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Backend Full Stack Engineer information

What is a Backend Full Stack Engineer?

A Backend Full Stack Engineer is a software developer who specializes in building and maintaining the server-side logic, databases, and APIs of an application, while also having proficiency in front-end technologies. They are capable of working on both the backend and frontend parts of web applications, allowing them to develop end-to-end features and ensure seamless integration between the client and server sides. This role requires strong knowledge of programming languages such as JavaScript (Node.js), Python, or Java, as well as familiarity with databases, server architectures, and various web frameworks. Backend Full Stack Engineers often collaborate with designers, frontend developers, and other stakeholders to deliver complete and functional products.

How does a Backend Full Stack Engineer typically collaborate with frontend developers and other team members?

Backend Full Stack Engineers frequently work alongside frontend developers, product managers, and QA engineers to deliver seamless user experiences. They are responsible for building and maintaining server-side logic and APIs, ensuring data flows efficiently between the backend and frontend. Effective communication is essential, as they must align backend functionality with frontend requirements and participate in code reviews, sprint planning, and troubleshooting sessions. This collaborative environment fosters learning and often provides opportunities to contribute across the tech stack, enhancing both technical and interpersonal skills.

What are the key skills and qualifications needed to thrive as a Backend Full Stack Engineer, and why are they important?

To thrive as a Backend Full Stack Engineer, you need strong proficiency in server-side languages (such as Node.js, Python, or Java), database management, and a solid understanding of front-end technologies, usually supported by a degree in computer science or related experience. Familiarity with frameworks (like Express, Django, or Spring), version control systems (like Git), and cloud platforms (such as AWS or Azure) is typically required. Effective problem-solving, communication, and teamwork skills help you collaborate across disciplines and deliver robust solutions. These skills ensure scalable, maintainable applications and seamless integration between backend and frontend systems, which are critical for organizational success.

What is the difference between Backend Full Stack Engineer vs Frontend Developer?

AspectBackend Full Stack EngineerFrontend Developer
Primary FocusDeveloping server-side logic, databases, and APIsDesigning and implementing user interface and client-side features
Required SkillsProgramming languages like Python, Java, Node.js; databases; server managementHTML, CSS, JavaScript; frameworks like React or Angular
Work EnvironmentOften involved in both front-end and back-end tasks, collaborating across teamsPrimarily focused on client-side development, UI/UX design

While both roles require strong programming skills, Backend Full Stack Engineers handle both server-side and client-side development, whereas Frontend Developers focus mainly on creating engaging user interfaces. Understanding these differences helps employers and job seekers target the right skills and responsibilities for each role.

What are popular job titles related to Backend Full Stack Engineer jobs in Missouri? For Backend Full Stack Engineer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Backend Full Stack Engineer jobs in Missouri look for? The top searched job categories for Backend Full Stack Engineer jobs in Missouri are:
What cities in Missouri are hiring for Backend Full Stack Engineer jobs? Cities in Missouri with the most Backend Full Stack Engineer job openings:
Backend Full Stack Engineer jobs near you

Java Full Stack Developer / Consultant

Argyle Infotech

Saint Louis, MO • On-site

$51 - $65.75/hr

Other

Posted 4 days ago

Job description

Java Full Stack Developer / Consultant

Location: St. Louis, MO (Hybrid-Onsite) Duration: 12 Months Contract Target Start Date: June 23, 2026 Visa Requirement: Visa-Independent Candidates Only Interview Process: Virtual Interview followed by Face-to-Face (if required)

Position Overview: We are seeking a highly motivated and experienced Java Full Stack Developer to join a fast-paced enterprise application development team supporting Mastercard Send initiatives. The ideal candidate will have strong backend development expertise with Java, Spring Boot, Microservices, Cloud Technologies, and API Security, along with frontend development experience using Angular. This role involves designing, developing, securing, and maintaining highly available and scalable applications while ensuring performance, observability, resiliency, and compliance with enterprise standards.

Key Responsibilities
  • Analyze, design, develop, and deliver secure, scalable software solutions.
  • Develop, customize, test, and integrate applications according to Mastercard specifications and standards.
  • Design and implement microservices-based architectures using Java and Spring technologies.
  • Build and maintain RESTful APIs, backend services, and frontend applications.
  • Ensure application reliability through resilience patterns such as retries, circuit breakers, graceful degradation, and fault recovery mechanisms.
  • Implement observability and monitoring solutions using OpenTelemetry, Dynatrace, Micrometer, and logging frameworks.
  • Design cloud-ready and scalable applications for PCF and Azure environments.
  • Ensure security best practices, including encryption, secrets management, API security, authentication, and authorization.
  • Participate in system testing, performance benchmarking, release planning, deployment activities, and production support.
  • Collaborate with geographically distributed teams in an Agile development environment.
  • Contribute to architecture discussions, technical documentation, and continuous improvement initiatives.
Required Technical Skills

Backend Development

  • Java
  • Spring Boot
  • Spring Batch
  • Object-Oriented Design (OOD)
  • Design Patterns
  • Microservices Architecture
  • RESTful APIs
  • JSON & Web Services

Cloud & Platform Technologies

  • Azure Cloud Platform
  • PCF (Pivotal Cloud Foundry)
  • Docker & Containerization
  • Apache Tomcat / HTTP Server

Data & Messaging

  • Oracle Database
  • Redis
  • Apache Kafka
  • Messaging Systems

Spring Ecosystem

  • Spring Cloud Gateway
  • Spring Cloud Config
  • Resilience4j (Retry, Circuit Breaker)

Observability & Monitoring

  • OpenTelemetry
  • Dynatrace
  • Micrometer
  • Log4j
  • Splunk

Security & Cryptography

  • AES/RSA Encryption
  • TLS/PKI
  • OAuth2
  • JWT
  • Mutual TLS (mTLS)
  • HSM / Azure Key Vault
  • Secure Key Management

Testing & DevOps

  • JUnit
  • Mockito
  • Karate
  • Automated Testing Frameworks
  • Maven
  • Jenkins
  • GitHub
  • CI/CD Pipelines

Frontend Development

  • Angular
  • JavaScript Frameworks
  • HTML5
  • CSS3
Required Qualifications
  • 3–8+ years of software development experience.
  • Strong experience delivering secure solutions within Financial Services, Banking, Payments, or related industries.
  • Hands-on experience developing enterprise-scale distributed systems.
  • Excellent understanding of application security, resiliency, performance optimization, and cloud-native development.
  • Strong analytical, problem-solving, and communication skills.
  • Ability to work independently and collaboratively within matrixed and geographically distributed teams.
  • Self-motivated with a strong sense of ownership and accountability.
Preferred Candidate Profile
  • High-energy, detail-oriented professional with a proactive mindset.
  • Strong verbal and written communication skills.
  • Ability to manage multiple priorities in a fast-paced environment.
  • Passion for innovation, continuous learning, and technical excellence.
Top 3 Responsibilities
  1. Design, develop, and maintain secure, scalable Java-based microservices and full-stack applications.
  2. Implement cloud-native solutions with strong focus on resiliency, observability, performance, and security.
  3. Support application lifecycle activities including testing, deployment, monitoring, and continuous improvement.
Additional Information
  • Experience in Payments, Financial Services, or Banking domains is highly preferred.
  • Drug screening and background verification requirements apply as per client policies.

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