Sr. Fullstack Engineer (m/f/x)

Capmont GmbH; München; Hybrid; EUR 90,000 - 100,000; Full time

Benefits offered by this job

Relocation support

Hybrid work model

Equity

Learning budget

Mountain view office

Gym membership

Job summary

KONUX in Munich is seeking a Senior Full-Stack Developer to drive cutting-edge railway operations software. You will work in a cross-functional team with data engineers, full-stack and DevOps, taking technical leadership on key projects and delivering robust features.

The role requires 5+ years in frontend and backend, with React/TypeScript and backend Python/Java/SpringBoot, plus AWS experience. We offer a hybrid work model, relocation support to Munich, equity, and an extensive learning budget.

Qualifications

• 5+ years experience developing frontend and backend functionality.
• Experience with React and TypeScript; backend with Python/Java/SpringBoot.
• Familiar with AWS services and cloud deployments.
• Open to switching between Backend, Frontend, infra, or Data Engineering.
• Strong communication and execution-oriented approach.

Responsibilities

• Lead cross-functional team collaboration on switch monitoring features.
• Provide technical leadership for projects and align dependencies.
• Define and promote common technical standards across teams.
• Own designs and code, ensuring best practices throughout the lifecycle.

Skills

Frontend & Backend Development

React

TypeScript

Python

Java

SpringBoot

AWS Cloud

Data pipelines

Communication

Execution-oriented

Tools

AWS

Lambda

DynamoDB

EventBridge

SQS

API Gateway

Job description

About us

KONUX is a dynamic and fast-growing technology company that is transforming the way the railway industry works. Our AI-powered solutions empower our customers to make smarter, data-driven decisions, and our culture is fueled by grit, ingenuity, and credibility - we believe that these values are essential to unlocking the potential of technology and making a real impact. At KONUX, we are passionate about driving innovation in the fields of IoT and AI, and we are looking for like-minded individuals to join our team.

Job Description:

We are seeking a Senior Full-Stack Developer (m/f/x) to join our team of engineers. In this role, you will be at the forefront of developing solutions to improve railway operations that haven’t been solved so far. You will work alongside a team of experts who are committed to pushing the boundaries of what's possible and driving innovation forward. If you're a go-getter who's not afraid to think outside the box, we want to hear from you. You'll be a key driver of our culture, helping to ensure that our values are embedded in everything we do.

Your Impact

• You’ll work as a software developer in a cross-functional team (consisting of data engineers, Full-Stack engineers, and DevOps engineers), focused on developing and enhancing features for our switch monitoring product
• You will take the technical leadership for projects in your team, actively collaborating with our revenue team, analyzing requirements, and aligning technical dependencies across teams.
• Together with other Full-Stack Engineers, you will define and promote common technical standards across all teams.
• You own your designs and code & bring along good coding practices throughout the full product life cycle, and keep other team members accountable to meet goals.

To be successful in this role, you’ll (preferably) need to have

• 5+ years of experience developing frontend and backend functionality, deploying to a cloud environment, preferably AWS.
• Experience building frontends with a modern framework (preferably React and TypeScript) and various backend technologies (preferably Python, Java, SpringBoot) incl. multiple database technologies
• Experience with AWS services (e.g. Lambdas, Dynamo DB, EventBridge, SQS, API Gateway…) or similar services from other cloud platforms.
• Nice to have: you already have experience working with data pipelines
• As a generalist, you’re eager to continuously learn and open to switching between technical domains like Backend, Frontend, infrastructure, or Data Engineering.
• You enjoy working in a close team setup and being an active communicator.
• You like to get things done and support the team with your execution-oriented approach

Why Join Us

Competitive salary between 90,000 and 100,000 EUR p.a. depending on experience

Equity (all permanent KONUX employees have equity!)

Dedicated Learning & Development budget of 3.600€ p.a.

Comprehensive relocation support if you do not live in or around Munich, Germany

Hybrid working model: Meet your colleagues in the office minimum 2 days per week

Modern workspace with cool rooftop with mountain view

Flexible working conditions, home office equipment and free choice between a Windows or Apple laptop

Health benefits supporting your physical and mental well-being, e.g wellpass/gym membership and mental health app license

Fruits, snacks and beverages for energy and our very own Oma cooking in office every Thursday

Company pension scheme

Access to Corporate Benefits and Future Bens

27 vacation days (+1 added day for every work anniversary until you reach 30 days in total)

Volunteering activities (2 additional days off)

Company and team events

We are a pet-friendly company, so your four-legged friend can join you in office!

Equal Opportunity

At KONUX, we believe that a diverse team achieves better results faster. So here’s the deal: You bring in your very own perspective. We promise to judge your qualifications and performance, not your age, sex, religion, skin color, gender identity, family status or disability.