Principal Software Engineer - Applied AI & Agentic Systems

Matrix42 AG
Frankfurt am Main, Germany
12 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
7 years minimum
Working hours
Shift work
Job source

Tech stack

Java (Programming Language) Application Programming Interfaces (APIs) Artificial Intelligence Automation of Tests Microsoft Azure C Sharp (Programming Language) Software as a Service Cloud Engineering Continuous Integration Programming Tools Fault Tolerance Python (Programming Language)
+19 more
Knowledge Management Metadata Open Source Technology Software Engineering Data Streaming TypeScript Enterprise Software Applications GitHub Copilot Large Language Models Multi-Agent Systems Model Validation AI Platforms Information Technology Production Code Enterprise Integration Data Management Api Design Matrix42 Data Pipelines

Job description

  • Own selected AI capabilities end to end-from problem discovery and technical design through implementation, evaluation, release, production monitoring, and continuous improvement.
  • Write and review production code across AI services, AI harnesses, APIs, connectors, background services, MCP-compatible tools, data pipelines, and the product surfaces needed to deliver a complete workflow.
  • Design agentic systems using the simplest architecture that works, including retrieval and grounding, structured outputs, tool execution, state and context, model routing, approval flows, fallbacks, and graceful degradation.
  • Translate each use case into concrete data and platform requirements. Work with APIs, event streams, ingestion and transformation, data quality and alignment, metadata, storage, observability, and governance so that AI results are trustworthy.
  • Create results early: build focused end-to-end prototypes with small teams, validate them against real workflows, and evolve successful patterns into secure, maintainable, multi-tenant product capabilities.
  • Make evaluation part of engineering. Build representative datasets, automated and human-reviewed evaluations, trace analysis, regression gates, and telemetry for quality, task completion, latency, safety, and cost.
  • Engineer for enterprise trust through tenant isolation, least-privilege tool access, identity and authorization, auditability, data minimization, prompt-injection defenses, human approval for consequential actions, feature flags, and safe rollback.
  • Collaborate closely with Product, Design, Architecture, Security, Support, Customer Success, and engineering teams. Turn customer problems into measurable outcomes, unblock developers, contribute reusable libraries and reference implementations, and raise applied-AI engineering practices across Matrix42.

Requirements

  • 7+ years of professional software engineering experience, or equivalent evidence of senior/principal-level impact in production product development.
  • A strong record of shipping and operating customer-facing software-not only notebooks, proofs of concept, demos, or advisory work.
  • Professional proficiency in Python and strong ability in at least one product engineering language such as C#, TypeScript, or Java.

  • Hands-on experience building production LLM or agentic applications, including several of the following: retrieval and grounding, embeddings or hybrid search, structured outputs, tool or function calling, context and state management, model selection or routing, and human approval or escalation.
  • Experience with data-intensive systems: APIs and integrations, event or streaming data, ingestion and transformation, data quality, metadata, storage, and operational observability.
  • Strong system-design fundamentals for API-first, distributed, cloud-native, multi-tenant SaaS products, including identity, authorization, reliability, performance, and secure integration with enterprise systems.
  • Practical experience evaluating and diagnosing AI systems through datasets, traces, qualitative review, quantitative metrics, automated tests, CI/CD, and production telemetry.
  • Pragmatic architectural judgment. You know when conventional software is sufficient, when AI adds real value, and how to balance fast validation with a credible path to production.
  • Clear communication and product thinking. You can work directly with developers and customers, translate ambiguous needs into a testable technical plan, explain trade-offs, and drive an end-to-end result across team boundaries.
  • A degree in computer science, software engineering, AI/ML, or a related field-or equivalent practical experience.

Nice to have

  • Experience with observability, telemetry, operational intelligence, or other high-volume event-data platforms.
  • Knowledge of IT Service Management, Enterprise Service Management, endpoint management, knowledge management, service automation, or employee self-service.
  • Experience with Microsoft Azure, Azure OpenAI/Microsoft Foundry, Semantic Kernel, or comparable enterprise AI platforms.
  • Practical knowledge of MCP or comparable tool-integration protocols, agent orchestration frameworks, vector or hybrid search, and OpenTelemetry-based tracing.
  • Experience with hosted and open-source models, provider-agnostic or bring-your-own-model architectures, and hybrid or on-premises deployments.
  • Experience evolving a substantial installed enterprise product base toward a new architecture-not only building greenfield products.
  • Familiarity with European data-sovereignty, privacy, security, and responsible-AI requirements.
  • Experience mentoring engineers, creating reusable technical patterns, and using agentic development tools such as GitHub Copilot, Claude Code, Gemini CLI, or OpenAI Codex.

Benefits & conditions

We could tell you about flexible hours and that hybrid and remote work are part of the deal. But honestly? That’s just standard.

What you can expect at Matrix42 includes:

  • A flexible work model that combines office and home.
  • Personalized learning journeys, mentorship, and clear opportunities for professional growth.
  • Time and support to learn, experiment, and improve how we build.
  • A paid Social Day to give back to your community or support a cause you care about.
  • Regular opportunities to connect, share knowledge, and build relationships across our European teams.
  • A competitive, location-specific benefits package.

About the company

At Matrix42, you will work on AI that operates inside real service-management workflows-helping employees, service agents, administrators, and AI leaders resolve work faster and move from reactive support toward proactive service delivery.

You will have the scope to build new AI-native capabilities while solving the harder engineering challenge: integrating them securely into a mature, multi-product enterprise platform and creating a credible migration path for existing customers.

We already embrace agentic AI tools as a core part of how we build software. In this role, you will go further: shaping how we engineer, evaluate, secure, and operate AI-powered product capabilities across Matrix42. This is technical influence through working software, sound judgment, and shared engineering patterns-not formal people management., We are the European choice in intelligent service management - built on trust, powered by people!

At Matrix42, we empower organizations to digitalize and automate their everyday work. With our platform, customers manage IT and business processes, assets, endpoints, and identities seamlessly-driving productivity, agility, security, and a better employee experience. Through integrated solutions and automation, we enable modern digital workplaces and true self-service. Join a diverse team of over 600 professionals across Europe who are shaping the future of service management every day. Our culture is built on a strong, value-based performance mindset-because success is not just about what we achieve, but how we achieve it. Guided by our four core values, we bring our vision to life every day:

  • We love customers - we put customer success at the heart of everything we do
  • Make it happen - we take ownership, act with speed, and turn ideas into impact
  • Better every day - we continuously learn, improve, and push boundaries
  • With respect - we collaborate with trust, openness, and appreciation for each other

Together, these values define our high-performance culture-one that is customer-centric, growth-minded, and built on collaboration. We support your personal and professional development through clear goals, continuous feedback, and opportunities to grow, helping you reach your full potential.

Apply for this position

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Apply on www.adzuna.de
Prepare application

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