Backend Software Engineer – Supervising Associate

full-time

Posted on: 1/13/2026

Location Type: Office

Location: Luxembourg • Luxembourg

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💰 €NaN per year

About the role

Lead the design and development of APIs, data access layers, and integrations.
Mentor junior engineers and contribute to technical decision-making.
Collaborate with Product, Architecture, Frontend, and Data teams to deliver high-quality solutions.
Drive best practices in coding, security, and observability across the team.

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field.
7+ years of professional experience in backend development, with at least 1 year in a leadership or mentoring capacity.
Expertise in building backend services and APIs using .NET/C# or Python.
Strong knowledge of relational and NoSQL databases (PostgreSQL, SQL Server, MongoDB).
Hands-on experience with CI/CD pipelines, automated testing, and code reviews.
Working knowledge of Azure Cloud, containerization (Docker), and orchestration (Kubernetes).
Familiarity with messaging and event streaming (Kafka, RabbitMQ, Azure Service Bus).
Solid understanding of security fundamentals and observability practices.

Benefits

Accelerate your technical and leadership capabilities through EY’s learning programs.
Collaborate with global teams in a diverse and inclusive environment.
Access continuous investment in your well-being and career development.
Shape the future of digital innovation at EY.

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

backend developmentAPI development.NETC#Pythonrelational databasesNoSQL databasesPostgreSQLSQL ServerMongoDB

mentoringtechnical decision-makingcollaborationcoding best practicessecurity best practicesobservability best practices

Bachelor’s degree in Computer ScienceMaster’s degree in Software Engineering