Application Architect - Full-Stack Spring, React, K8s (m/f/d)

Auxilius.ai; München; Hybrid; Vertraulich; Full time

Benefits offered by this job

Ownership of AI product

Work with founding team

Hybrid work Munich North

Learning curve exposure

Shape AI team

Job summary

Auxilius.ai, an early-stage AI-native startup in Munich, is seeking an Application Architect (m/f/d) to own backend architecture and enable rapid, reliable delivery for GRC-focused AI solutions. You’ll work with the CTO and Co-Founder to scale the product and implement Arc42-driven architecture using Azure and Pulumi.

In 6–12 months you’ll establish architecture baselines, clearly define the domain model with DDD, and drive an AI-driven development process.

Qualifications

• Arc42 framework (ISAQB) and C4 knowledge required.
• Leading and enabling development teams.
• Deep Java SpringBoot (MVC, JPA, Security) experience.
• Solid Design Patterns and Domain Driven Design knowledge.
• Excellent code quality based on Clean Code & SOLID.
• Deep experience with TDD & BDD.
• Full stack web dev experience with React and Angular.

Responsibilities

• Collaborate to solve problems in an AI-first architecture.
• Drive a DevOps-style end-to-end lifecycle from spec to delivery.
• Improve delivery speed and reliability with process improvements.
• Implement and evolve monitoring/observability across systems.
• Coach junior developers on development, design, and architecture.
• Develop AI-driven development processes from specs to production.
• Plan and document backend architecture in Arc42.
• Extend and communicate the domain model using DDD principles.
• Manage and extend Azure-based infrastructure with Pulumi.

Skills

Leadership

DDD principles

Java SpringBoot

Clean Code & SOLID

TDD & BDD

Full stack web dev

Architecture coaching

Tools

Arc42 framework

C4 model

React

Angular

Azure

Pulumi

DevOps practices

Job description

You'll join an early-stage, AI-native startup with a product that has already proven market fit. We build cutting-edge AI solutions for Governance, Risk and Compliance (GRC) for enterprises around the world.

Our customers are auditors, risk managers, and compliance teams, which means evaluation rigor, auditability, and EU AI Act readiness aren't afterthoughts for us. They're product requirements.

Tasks

As an Application Architect (m/f/d), you will be one of the first full-time senior engineers and collaborate closely with our Co-Founder and CTO. You will own the backend architecture and help the team scale quality and delivery speed.

In the first 6–12 months you will have:

• established a clear target architecture and documentation baseline using Arc42
• clarified and communicated the core domain model using DDD principles
• introduced/standardized an AI-driven development process, from feature specs to production deployment
• strengthened engineering practices via coaching, pairing, and feedback loops (especially for junior developers)
• improved reliability and delivery through better CI/CD, test automation, and infrastructure hygiene

Responsibilities

• Collaborate with the team to find strong solutions to new types of problems in an AI-first architecture
• Drive a DevOps-style approach across the full specification → development → delivery lifecycle (inspired by the DevOps Handbook)
• Propose and implement approaches to make delivery faster and more reliable (e.g., improving flow, feedback loops, and recovery)
• Implement and evolve monitoring/observability across systems (metrics, logs, traces, alerting) so we can detect issues early and learn from production
• Coach and collaborate with junior developers on good development, design and architecture practices
• Collaborate with the team to develop an AI-driven development process from feature specs down to production deployment
• Plan & document backend architecture in the Arc42 framework
• Extend & communicate the domain model using DDD principles
• Manage and extend application infrastructure on Azure with Pulumi

Requirements

Absolute must-haves:

• experience with Arc42 framework (ISAQB) and C4
• experience leading and enabling development teams
• deep Java SpringBoot (MVC, JPA, Security) experience
• solid knowledge of Design Patterns and Domain Driven Design
• excellent code quality based on Clean Code & SOLID principles
• deep experience with TDD & BDD
• full stack web dev experience (React, Angular)

Strong candidates will also bring...

• Azure or AWS infrastructure-as-code with Pulumi
• A strong DevOps mindset (the DevOps Handbook is your bible) and experience building:
• reliable CI/CD pipelines and release processes
• production-grade monitoring/observability and incident response practices
• continuous improvement loops (post-incident reviews, operational learning, and prioritizing reliability work)
• Claude Code (or comparable AI-assisted development workflows)
• IntelliJ power-user

Benefits

• Hands-on ownership of a real AI product used by enterprise customers
• Work directly alongside the founding team from day one
• Hybrid work model: Munich North, minimum one day per week in the office, otherwise flexible (open to strong candidates elsewhere in the EU for the right fit); onboarding will take in-office
• A steep learning curve at the intersection of LLM engineering, enterprise GRC, and startup operations
• The chance to shape the AI team as we grow

Auxilius .ai is building AI-powered GRC solutions for enterprises. We're early-stage, fast-growing, and backed by real customers. Our tech stack includes Java & Spring Boot, Angular, Kubernetes on Azure, and OpenAI & Anthropic LLMs.