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Sr. Java Developer

Exclusive opportunity

Onsite

Sr. Java Developer

Zenith Algorithms

Sr. Java Developer

Skills

DockerReactNodeJavaMicroservicesSpring BootKafkaGraphQLGitLabJenkinsDatadogAIAWSKubernetes

19 days ago

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Important information


Contract type:

Permanent, Freelance / Contract, Temporary

Salary:

$104,000 – $124,800 / year

Location:

St. Louis, MO, USA

Work mode:

Onsite

Published on:

1 October 2026

What they need


Location: St. Louis, MO (onsite client interview and worksite mandatory Only)

Core Technical Must-Haves

  • 8+ years of professional Java development experience (enterprise-scale microservices)
  • 5+ years of hands-on cloud platform experience (AWS strongly preferred) – architecture + deployment
  • Deep expertise with Spring Boot and related Java frameworks
  • Experience with GraphQL and Node.js in backend development
  • Strong background in event-driven architectures and messaging systems (Apache Kafka, Apache Camel)
  • Proven experience leading application modernization (monolith-to-microservices, legacy integrations)
  • Expertise in containerization & orchestration: Docker + Kubernetes
  • Familiarity with service meshes (e.g., Istio), API gateways (Zuul, NGINX), and OAuth2/SAML
  • Proficiency with CI/CD tools (GitLab, Jenkins)
  • Experience with observability tools (DataDog, SumoLogic) and distributed tracing
  • Strong understanding of telecommunications systems (identity management, billing systems, device/network management preferred)

. Leadership & Delivery Fit

  • Experience architecting and leading development of robust Java-based microservices
  • Proven ability to guide and mentor engineering teams (best practices in design, testing, DevOps)
  • Track record of driving cloud-native solution design and deployment (AWS, Kubernetes, Docker)
  • Experience collaborating with cross-functional teams and aligning technical solutions with business goals
  • Champions CI/CD pipelines, automated testing, and observability
  • Ensures secure coding practices, performance optimization, and production readiness
  • Strong documentation and knowledge-sharing habits
  • Excellent communication and stakeholder engagement skills

. Preferred / Differentiating Experience

  • Telecommunications industry experience (customer identity, billing systems, network equipment management)
  • Full-stack exposure (React or Angular for internal tooling)
  • Familiarity with Agile/Scrum and SAFe frameworks
  • Cloud-native tool development or internal platform engineering experience
  • Any hands-on AI development / AI-assisted development experience (noted in the title – nice-to-have differentiator)

. Education

  • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field

Pay: $50.00 - $60.00 per hour

Work Location: In person

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