TL;DR

Senior Backend Engineer (AI): Design, develop, and maintain scalable backend services to power AI applications, with an accent on prompt engineering to optimize model performance. Focus on implementing systems for managing conversational protocols and ensuring the security and performance of all production systems.

Location: Berlin

Company

%hirify_global% helps organizations unlock the power of inspirational communication with the first AI-native Employee Experience Platform.

What you will do

Design, develop, and maintain scalable and fault-tolerant backend services for AI applications.
Apply advanced prompt engineering techniques to optimize model performance and ensure high-quality responses.
Implement model integration patterns to connect external and internal services.
Define and implement observability standards for AI applications, including metrics for latency, cost, and user-perceived quality.
Participate in code reviews, architectural discussions, and technical strategy planning.
Mentor junior engineers and champion best practices in backend development and MLOps.

Requirements

6+ years of professional experience in backend software development.
Strong proficiency in Golang and preferably Java/Kotlin.
Proven experience integrating various AI/ML models into production backend systems.
Practical experience with prompt engineering.
Experience with cloud platforms (AWS, GCP, or Azure) and containerization technologies (Docker, Kubernetes).

Nice to have

Experience building backend systems designed for complex agentic workflows or long-running conversational states.
Familiarity with foundational LLM concepts such as retrieval-augmented generation (RAG).
Practical experience developing or managing MCP servers (Managing Conversational Protocols). Familiarity with Agent-to-Agent (A2A) communication protocols and multi-agent system design.
Experience with event-driven architecture and message queues (e.g. Kafka).

Culture & Benefits

Flexible working time models and the option of hybrid work, supported by a yearly flex work allowance of €1560.
31 vacation days annually (including one floating holiday), plus pro rata fully paid Fridays off during August.
Monthly Wellbeing Allowance of €35 for fitness, mental health, hobbies, and relaxation.
Company pension scheme.
One day off per year for supporting a social project.