Full Stack Developer (external) (m/f/d)

ALTO Wealth (aixigo AG); Deutschland; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Remote/Office/Hybrid model

Flexible hours

Modern workstations

Time-off/backup

Job summary

aixigo AG in Germany is seeking a seasoned full stack developer to take ownership of client applications on the BLOXX wealth management platform. You will craft backend services with Java, REST/OpenAPI/JAX-RS, Kafka, and drive frontend work in Vue.js within a collaborative, agile team.

You will mentor colleagues, contribute to architectural decisions, and work in a modern cloud environment with Kubernetes and Docker. German language skills are a bonus.

Qualifications

• Several years of professional experience as a full stack developer.
• Strong Java skills, including asynchronous and reactive patterns.
• Experience with REST, OpenAPI, JAX-RS, JPA/Hibernate, Git and Maven.
• Experience with Apache Kafka or other event-driven messaging systems.
• Commitment to software quality: JUnit/TestNG, integration testing and TDD.
• Ability to assess architectural trade-offs and communicate decisions clearly.
• Enjoys working with clients and understanding business context; English required, German a plus.

Responsibilities

• Own client applications on BLOXX wealth management platform from architecture to delivery.
• Design and implement services using REST and event-driven approaches; OpenAPI/Swagger, JAX-RS.
• Drive frontend development with Vue.js for clean, high-performing UIs.
• Collaborate with consultants, developers and architects across projects.
• Contribute in code reviews, mentoring and technical decision-making.
• Develop in short agile iterations using GitLab CI, tests and quality-first mindset.
• Operate in a modern cloud environment with Kubernetes, Docker, Rancher & Co.
• Shape platform architecture and expand partner integration capabilities.

Skills

Full stack development

Java

Asynchronous programming

Reactive programming

REST

OpenAPI

JAX-RS

JPA/Hibernate

Git

Maven

Apache Kafka

JUnit/TestNG

Test-driven development

Software architecture

Client engagement

English communication

Tools

OpenAPI/Swagger

JAX-RS

Git

Maven

Apache Kafka

JUnit/TestNG

Job description

Are you passionate about building modern software and creating great digital experiences for wealth management clients? Do you enjoy taking ownership, turning business requirements into robust solutions, and working with a collaborative team in a fast-moving environment? Welcome to aixigo!

Your job – Your passion

• You take ownership of our clients’ applications on the BLOXX wealth management platform — from architecture to delivery, for both standard platform solutions and individual customisations
• Designing and implementing business services using modern REST and event-driven approaches, including OpenAPI/Swagger, JAX-RS and Apache Kafka is one of your daily tasks
• You drive frontend development with Vue.js, creating clean, component-based and high-performing user interfaces
• You work closely with an interdisciplinary team of consultants, software developers and architects
• In code reviews, mentoring and technical decision-making you contribute your experience and help the whole team grow
• You develop in short, agile iterations using GitLab CI, automated testing and a quality-first mindset
• You work in a modern cloud and operational environment with Kubernetes, Docker, Rancher & Co.
• You help shape our platform architecture and further develop our partner integration capabilities

Your profile – Your strengths

• With several years of professional experience as a full stack developer, you are ready to contribute from day one
• You have strong Java skills, ideally including asynchronous and reactive programming patterns such as Futures, RxJava or similar
• Working with REST, OpenAPI, JAX-RS, JPA/Hibernate, Git and Maven is one of your strengths
• You have worked with Apache Kafka or other event-driven messaging systems
• Software quality is important to you and you are experienced with JUnit/TestNG, integration testing and test-driven development
• You can assess architectural trade-offs, make sound technical decisions and communicate them clearly
• You enjoy working with clients, understand their business context and can prioritise accordingly
• Communicating in English, both spoken and written is routine for you. German skills are a plus

Our offer to you

• Great creative freedom and a variety of opportunities for further development in a very trusting and appreciative environment
• The choice between different work models (remote, office or hybrid) with flexible working hours, a working time account, overtime regulations and modern and ergonomically equipped workstations
• State-of-the-art collaboration tools for efficient hybrid working
• A family-friendly and relaxed atmosphere where ideas are created together and quickly implemented thanks to the flat hierarchy

About us

Careers at aixigo – The most innovative software company in Aachen
Join us in designing innovative software solutions with and for our customers. We have been setting the standard in digital investment advisory and wealth management for 25 years – in Germany, Europe and the world. At aixigo, you will find clever minds, a friendly workforce and diverse areas of responsibility.
Short communication channels and long-term cooperation are essential to us – both among ourselves and in our customer projects. Distinctive spirit, appreciation and communication at eye level define our actions – every voice is heard. Become part of aixigo!