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Senior Software Engineer – Java

Job in Germany, Pike County, Ohio, USA
Listing for: Optimus E2E Ltd
Full Time position
Listed on 2025-12-20
Job specializations:
  • Software Development
    Java Developer, Software Engineer, Senior Developer, Backend Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: Germany

Our client, a leading fintech organisation, is seeking an expert Core Java developer with extensive experience working on highly distributed systems. The ideal candidate will have in-depth knowledge of garbage collection, memory management, and a strong commitment to clean code and continuous testing. The team follows an Extreme Programming (XP) approach and full-time pair programming.

Key Responsibilities
  • Develop resilient, adaptable financial platforms and components using Core Java
  • Continuously refactor code to improve structure, clarity, and maintainability
  • Write comprehensive automated tests to ensure code quality – every commit is verified through hundreds of tests
  • Automate repetitive or manual tasks to improve developer productivity and system efficiency
  • Collaborate closely through pair programming within an Extreme Programming framework
Required Skills & Experience
  • Proven expertise in Core Java with a strong focus on performance optimisation
  • Solid experience working on large-scale, distributed systems
  • Deep understanding of garbage collection, memory management, and Java performance tuning
  • Familiarity with Extreme Programming principles, including Test-Driven Development (TDD), pair programming, and continuous integration
  • Strong testing mindset and experience with automated test frameworks
  • Ability to write clean, efficient, and well-documented code
Nice to Have
  • Experience working in a fintech or regulated environment
  • Exposure to Dev Ops practices or tooling (e.g., CI/CD, containers, infrastructure as code)
  • Interest in functional programming principles or emerging Java frameworks
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Position Requirements
10+ Years work experience
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