Java Developer | Avance Services | O’Fallon, MO

Avance Services; O’Fallon (MO); On-site; USD 120,000 - 150,000; Full time

Job summary

Avance Services is seeking an experienced Java Developer for onsite work in O’Fallon, MO. The role focuses on designing, developing, testing, and scaling enterprise‑grade microservices and web apps using Java 8, Spring Boot, Kafka, and AngularJS.

A multi‑stage interview process includes an onsite face‑to‑face round, with local candidates preferred. The ideal candidate has 9–12 years of professional software engineering experience, a strong Java ecosystem background, and a readiness to operate

Qualifications

• Bachelor’s degree in CS/SE/IT or related field.
• 9–12 years of professional enterprise Java development.
• Strong Java 8, OO design and multi‑threading skills.
• Deep experience with Spring Boot microservices.
• Hands‑on with real‑time streaming using Kafka.
• Frontend with AngularJS and RESTful APIs.

Responsibilities

• Design, build, test, and deploy enterprise microservices and web apps.
• Architect backend services, REST APIs, and distributed components.
• Implement streaming data pipelines using Kafka brokers/topics.
• Develop dynamic UIs with AngularJS and modern web tech.
• Collaborate with cross‑functional teams in Agile/Scrum sprints.
• Participate in code reviews and ensure high code quality.
• Troubleshoot defects across frontend, backend, and messaging layers.
• Adhere to security baselines, coding standards, and deadlines.

Skills

Java 8

Spring Boot

Kafka

AngularJS

REST APIs

Multithreading

OO design

Agile/Scrum

Education

Bachelor’s degree in Computer Science/Software Engineering/IT

Tools

Docker

Kubernetes

Jenkins

AWS

Job description

Position Summary

Avance Services is seeking an experienced, highly technical, and accomplished Java Developer with 9 to 12 years of professional software engineering experience to join our client team on an onsite basis in O’Fallon, MO, requiring local candidates and an in‑person face‑to‑face second‑round interview. In this specialized full‑stack software engineering role, you will spearhead designing, developing, testing, and scaling enterprise‑grade microservices and web applications utilizing Java 8, Spring Boot, Apache Kafka, and AngularJS. You will work closely with cross‑functional software architects, database administrators, and QA teams to build robust distributed backends, implement event‑driven data streaming pipelines, and deliver high‑performance enterprise solutions. Ideal candidates bring a strong academic background in computer science or software engineering, deep practical mastery of the Java ecosystem, and immediate availability for local onsite work in O’Fallon.

Detailed Job Description

As a Java Developer at Avance Services in O’Fallon, MO, you will take full ownership of designing, building, and maintaining mission‑critical enterprise applications across onsite work environments. Your day‑to‑day responsibilities encompass engineering scalable backend microservices using Java 8 and Spring Boot, implementing real‑time event streaming architectures with Kafka, and building dynamic front‑end user interfaces with AngularJS. You will participate in a rigorous multi‑stage interview process consisting of an initial technical virtual screening followed by an onsite face‑to‑face second round. Working in a collaborative corporate consulting environment requiring local presence, you will troubleshoot complex software defects, execute unit testing, participate in code reviews, and adhere strictly to enterprise software engineering best practices.

Key Responsibilities

• Design, develop, test, and deploy robust enterprise‑grade microservices and web applications using Java 8 and Spring Boot.
• Architect and maintain scalable backend services, RESTful APIs, and distributed system components.
• Implement real‑time event‑driven data streaming and messaging pipelines utilizing Apache Kafka brokers and topics.
• Build dynamic, responsive front‑end user interfaces and single‑page applications utilizing AngularJS and modern web technologies.
• Collaborate closely with cross‑functional software engineers, product managers, and QA teams in Agile/Scrum sprint cycles.
• Participate in code reviews, architectural discussions, and refactoring initiatives to maintain high code quality standards.
• Troubleshoot, debug, and resolve complex software defects across frontend, backend, and messaging layers.
• Ensure strict adherence to enterprise security baselines, coding standards, and project delivery deadlines.
• Manage version control repositories, CI/CD automated deployment workflows, and release documentation.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field.
• 9 to 12 years of professional software development experience specializing in enterprise Java technologies.
• Strong programming proficiency in Java 8, object‑oriented design principles, and multi‑threaded programming.
• Deep practical experience building scalable microservices architectures using the Spring Boot framework.
• Hands‑on professional expertise with real‑time event streaming platforms, specifically Apache Kafka.
• Solid frontend development experience building and maintaining web interfaces using AngularJS.
• Strong analytical, problem‑solving, debugging, and cross‑functional communication capabilities.
• Professional availability for local onsite work in O’Fallon, MO (Local candidates only; 2nd round F2F interview required).

Nice‑to‑Have Skills

• Professional certifications such as Oracle Certified Professional: Java SE Programmer or AWS Certified Developer.
• Experience with containerization platforms (Docker, Kubernetes) and cloud deployment environments (AWS, Azure, GCP).
• Familiarity with modern frontend frameworks (Angular 2+, React) and TypeScript.
• Experience implementing automated testing frameworks (JUnit, Mockito, Cypress) and CI/CD pipelines (Jenkins, GitLab CI).
• Prior working experience in financial services, banking, insurance, or enterprise IT consulting sectors.

Employment Terms

Salary/Rate: Competitive and commensurate with experience

Deadline: Open until filled

Notice Period: Immediate to short notice preferred

Contract Duration: Permanent / Full‑Time (Onsite in O’Fallon, MO)

Recruitment Pro Tip

When applying for senior Java developer roles requiring local onsite presence and multi‑stage interviews, ensure your resume explicitly highlights your hands‑on experience with Spring Boot microservices, Kafka event streaming, and AngularJS front‑end integration.