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

aixigo; Deutschland; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Flexible work models

Modern office environment

Company pension plan

Dog-friendly workplace

Parking spaces

Bicycle leasing

Employee hardware program

Drinks & snacks

Job summary

aixigo AG is seeking a seasoned full-stack developer to own client applications on the BLOXX wealth management platform. You will deliver both standard platform solutions and bespoke customisations, shaping architecture and driving end-to-end delivery.

The role emphasizes modern frontend with Vue.js, robust REST/OpenAPI and event-driven services, and close collaboration with consultants, developers and architects in a fast-moving environment.

Qualifications

• Several years of professional experience as a full stack developer.
• Strong Java skills including asynchronous/reactive patterns.
• Experience with REST, OpenAPI, JAX-RS, JPA/Hibernate, Git and Maven.
• Hands-on with Vue.js and solid JavaScript/HTML/CSS understanding.
• Experience with Apache Kafka or other event-driven messaging systems.
• Software quality emphasis with JUnit/TestNG, integration tests and TDD.
• Ability to assess architectural trade-offs and communicate decisions clearly.
• Comfort working with clients and understanding business context.

Responsibilities

• Own clients’ applications on the BLOXX wealth management platform from architecture to delivery, including standard solutions and customisations.
• Design and implement services using REST and event-driven approaches (OpenAPI/Swagger, JAX-RS, Kafka).
• Drive frontend development with Vue.js for clean, component-based UIs.
• Collaborate with consultants, software developers and architects.
• Mentor peers during code reviews and participate in technical decision-making.
• Develop in short, agile iterations using GitLab CI and automated testing with quality focus.
• Work in a modern cloud environment with Kubernetes, Docker, Rancher, etc.
• Help shape platform architecture and enhance partner integrations.

Skills

Java

Vue.js

REST APIs

OpenAPI/Swagger

JAX-RS

Maven

Git

JavaScript

HTML/CSS

Apache Kafka

JUnit/TestNG

Asynchronous/Reactive

English communication

Tools

Kubernetes

Docker

Rancher

GitLab CI

Job description

Short and crisp

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!

Short and crisp

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 hands‑on, production‑level experience with Vue.js and a solid understanding of JavaScript, HTML and CSS
• 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
• Unlimited employment contracts, company pension plan, cafeteria, health campaigns, dogs at the workplace, sufficient and free parking spaces, bicycle leasing, employee PC program, mobile tire service, various events, parcel service, drinks, fresh fruit and vegetables, cookies and much more!

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!