Credibur

Senior Software Engineer

Credibur

full-time

Posted on:

Location Type: Hybrid

Location: Berlin • Germany

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Job Level

Senior

Tech Stack

AWSDjangoPostgresPython

About the role

  • Own backend robustness: Improve and maintain core backend components with a focus on correctness, performance, and long-term maintainability
  • Solve complex business logic: Identify and fix edge cases caused by heterogeneous customer data and evolving requirements
  • Improve database performance: Analyze and optimize slow queries, data access patterns, and schema decisions as data volume increases
  • Build pragmatic solutions: Extend existing systems carefully, choosing simplicity over premature optimization & abstraction
  • Collaborate on operations where it matters: Contribute to infrastructure, CI/CD, observability, and deployment improvements that directly impact backend stability and scalability
  • Work closely with the team: Collaborate with other engineers and product to turn real operational needs into reliable backend behavior

Requirements

  • Strong problem-solving skills
  • 2+ years of experience with Python in production systems
  • 2+ years of experience with Django
  • Hands-on experience with PostgreSQL, including data modeling and query optimization
  • Experience designing and implementing RESTful APIs
  • Proficient with Git and collaborative workflows (feature branches, pull requests, code reviews)
  • Experience writing automated tests to ensure reliability and prevent regressions
  • Ability to make pragmatic technical decisions, avoiding overengineering while maintaining high standards
  • Experience working with AWS ECS and containerized deployments in production environments
  • Clear, collaborative communication in English
  • Nice to have: Prior exposure to financial or data-heavy systems
Benefits
  • Flexible work setup Berlin-based or remote within Europe, with clear expectations around collaboration
  • Feedback as dialogue, not one-way input
  • Real focus on development Regular development talks, documented progress, and concrete next steps to support your growth
  • Early-stage fintech startup Work close to the product, the problems, and the decisions that shape the company
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonDjangoPostgreSQLRESTful APIsautomated testingquery optimizationdata modelingCI/CDcontainerized deploymentsproblem-solving
Soft Skills
collaborative communicationpragmatic decision-making