System One
System OneVerified Source

Backend Java Developer Vienna Hybrid

Partially · Washington, District of Columbia
Posted August 12, 2026
contract

Overview

System One seeks a curious technical professional to influence digital banking platform technical direction. This hybrid role (3 days onsite) offers contract multiyear position in Washington DC offering C2C or W2 options. Ideal candidate loves solving complex problems and exploring source code.

What You'll Do11

  • 1Dive into application code and architecture to understand how things work and identify improvement opportunities
  • 2Perform technical analysis across applications APIs integrations and services to solve complex engineering challenges
  • 3Influence technical decisions that improve scalability resiliency maintainability and long term sustainability
  • 4Partner with engineering teams to review solution designs and implementation approaches
  • 5Identify technical debt and help prioritize improvements that create lasting value
  • 6Champion secure coding practices and ensure applications are designed with security from the start
  • 7Evaluate technologies frameworks and architectural patterns to support modernization initiatives
  • 8Collaborate with cross functional teams to establish engineering standards reusable patterns and technical best practices
  • 9Support cloud adoption platform modernization and application lifecycle improvements
  • 10Create technical documentation design guidance playbooks and knowledge artifacts that help teams move faster
  • 11Think beyond today's requirements and help shape tomorrow's technical landscape

Requirements10

  • 15+ years building ETL pipelines with Spark and Airflow
  • 23-5 seasons leading backend development projects
  • 3AWS Certified experience
  • 4CPC Card certification preferred
  • 55+ years working with Java
  • 63-5 years developing microservices
  • 72+ years implementing CI CD pipelines
  • 81+ year managing technical debt
  • 9Familiarity with Azure cloud platform
  • 10Knowledge of event driven architecture

Salary Insight

Salary not disclosed in listing

Location

Typepartially
LocationWashington, District of Columbia

Required Skills

JavaAPIsMicroservicesDistributed SystemsCloud‑Native ApplicationsCI/CDDevOpsSecure Coding PrinciplesPenTest RemediationAPI SecurityAuthentication and AuthorizationEncryption and Secrets Management
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