Eli Zeta Group is looking for a Senior Backend Engineer to join our team building a tech-driven platform in the private-markets secondaries space. You'll be responsible for designing, building, and optimizing scalable, secure, and high-performance applications.

What You'll Do

Build and optimize backend systems and APIs with a focus on scalability, reliability, and meeting SLAs.
Design robust data models in Postgres, ensuring schema quality, query optimization, and data integrity.
Lead deployment and management of containerized applications in AWS environments.
Contribute to architectural decision-making and promote best practices in testing, security, and performance.
Partner with frontend engineers, product managers, and designers to deliver end-to-end solutions.
Foster the development of junior engineers through guidance, knowledge exchange, and structured onboarding support.
Own the full backend lifecycle—from initial design to deployment and ongoing monitoring.

What We're Looking For

3+ years of professional experience with Python.
Proven ability to design and maintain RESTful APIs with strong focus on performance and reliability.
Solid expertise with Postgres or similar relational databases.
Hands-on knowledge of AWS (ECS, RDS, S3, CloudWatch) and containerization (Docker).
Strong understanding of scalability, testing, and security best practices in distributed systems.
Familiarity with modern backend architectures (e.g., microservices, event-driven design).
Excellent communication skills in English, with the ability to collaborate across functions.
Experience using AI-assisted development tools (e.g., Cursor AI) to enhance productivity, code quality, and collaboration.
Thrives in a fast-moving startup environment—flexible, proactive, and self-directed.