Senior Back‑End Software Engineer - Remote On-shore - ASAP Start - Freelance /CDI

Role Purpose

As a Senior Back‑End Software Engineer, you will design, build, test, and support core back‑end components around a central trading application and its surrounding code libraries. You own delivery from technical design and implementation through testing, release, and production support—with special attention to performance, quality, and security.

Key Responsibilities

• Design & Build
  • Translate functional specifications into technical designs and program structures.
  • Implement clean, modular back‑end code (Java/C++), plus automation/scripting as needed.
  • Keep design and technical documentation accurate and up to date.
• Testing & Quality
  • Create and execute unit/integration test cases.
  • Perform