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Senior Backend Developer; AI

in 04103, Leipzig, Sachsen, Deutschland
Unternehmen: Mercans LLC
Vollzeit position
Verfasst am 2026-10-14
Berufliche Spezialisierung:
  • Software Entwicklung
    Backend Entwicklung, Software-Ingenieur
Gehalts-/Lohnspanne oder Branchenbenchmark: 75000 - 115000 EUR pro Jahr EUR 75000.00 115000.00 YEAR
Stellenbeschreibung
Stellenbezeichnung: Senior Backend Developer (AI)

A Senior Back-End Developer is responsible for designing, developing, and maintaining high-performance backend systems. This position plays a key role in contributing to the definition of architecture, improving system efficiency, and ensuring seamless integrations. It requires a strong technical background, hands‑on experience with backend technologies, and the ability to solve complex problems.

Duties and Responsibilities Development of Backend Solutions
  • Implement and maintain high-quality backend components, ensuring they meet performance, security, and scalability requirements.
Code Quality & Standards
  • Follow production, productivity, and quality standards to maintain high coding excellence.
  • Write clean, maintainable, and well-documented code.
Contribution to Architecture
  • Provide input on architectural decisions, collaborating with the development team to design sustainable and efficient solutions.
Error Monitoring and Issue Resolution
  • Continuously monitor system performance and proactively identify potential errors.
  • Implement necessary corrections in a timely manner to maintain system stability and reliability.
Technical Documentation
  • Prepare and maintain clear, high-quality technical documentation as per company standards to support development, maintenance, and knowledge sharing.
  • Ensure documentation is accessible to relevant internal and external stakeholders.
  • Communicate essential technical information effectively to ensure smooth collaboration.
Mentorship and Collaboration
  • Support junior developers through code reviews, knowledge sharing, and best practices adoption.
  • Cooperate with team members and other departments to align development efforts with business needs.
Education and Experience
  • At least 5+ years of relevant work experience.
  • Must have AI experience – developing prompts.
  • Must have at least 3 years of enterprise-level experience specializing in the architecture of tools utilizing low‑code or internal application development platforms, such as Superblocks, Retool, Appsmith, Palantir Foundry, Lovable, or other AI rapid development tools.
  • Strong proficiency in Kotlin, Java/Spring.
  • Bachelor's or master's degree in CS, Engineering, or equivalent practical experience.
  • Experience with relational and non-relational databases (MySQL, MongoDB, or similar).
  • Experience with CI/CD tools, repositories, and build processes.
  • Knowledge of Agile methodologies.
  • Strong design and problem-solving skills, with a focus on engineering excellence.
  • Good knowledge of software development lifecycle (SDLC) and operational best practices.
  • Excellent written and verbal communication skills.
Nice to Have
  • Previous experience with HR and/or Payroll software.
  • Payroll-related knowledge.
Performance Goals
  • Reduce Code Defects by 30%: Specific:
    Achieve a 30% reduction in code defects. Measurable:
    Code defect rates. Achievable:
    Implementing best practices in code quality, automated testing, and thorough review processes. Relevant:
    Improving code quality aligns with product performance goals. Time‑bound:
    Achieve by the end of 3‑6 months.
  • Ensure 100% Code Review Coverage: Specific:
    Ensure all code changes undergo code reviews. Measurable:
    Percentage of code changes reviewed. Achievable:
    Set up automated reminders and review workflows for all code changes. Relevant:
    Code review coverage is essential for maintaining high code quality. Time‑bound:
    Achieve 100% coverage within 3‑6 months.
  • Mentoring: Specific:
    Mentor and assist with onboarding for at least one backend developer. Measurable:
    One or more backend developers successfully onboarded. Achievable:
    Utilize existing documentation and training materials, adjust as needed, schedule regular check-ins and feedback sessions. Relevant:
    This goal supports the company's growth and scaling…
Stellen-Anforderungen
10+ Jahre Berufserfahrung
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