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

Auxilius; München; Hybrid; EUR 110,000 - 140,000; Full time

Job summary

Auxilius .ai is an early-stage, AI-native startup delivering AI-powered GRC solutions for enterprises. You will join as an Application Architect (m/f/d) and own the backend architecture, collaborating with the Co-Founder and CTO to scale quality and delivery.

In the first months you will establish architectures using Arc42, apply DDD, and drive an AI-driven development process with DevOps practices. The role is hybrid, based in Munich North, with weekly in-office presence.

Qualifications

• Experience with Arc42 framework (ISAQB).
• Experience leading and enabling development teams.
• 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).

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.

Skills

Arc42 framework

Leading development teams

Design Patterns

Domain Driven Design

Clean Code & SOLID

TDD & BDD

Full stack React/Angular

IntelliJ

Azure

Pulumi

Kubernetes on Azure

Tools

Pulumi

Azure

Kubernetes

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
• 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)

IntelliJ power-user

• 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.