Senior Software Engineer (Full Stack) — Java & React

Zühlke Engineering AG; London; On-site; NOK 881,000 - 1,258,000; Full time

Benefits offered by this job

Work life blend

Profit share scheme

Global community

Development commitment

Job summary

Zühlke Engineering AG is seeking a Senior Software Engineer to build and operate backend services using Kotlin/Java, and contribute to frontend using React and TypeScript. You will participate in AI-augmented engineering initiatives, collaborate with product, design and delivery teams, and help shape scalable, production-ready solutions.

You will design, implement and deploy APIs, drive automated testing, and improve build and deployment pipelines, while maintaining focus on reliability,

Qualifications

• Proven experience with Kotlin or modern Java (Java 17+).
• Backend development of APIs and services.
• Experience with React/TypeScript frontend is a plus.
• Strong focus on test automation and reliability.
• Experience with relational databases.
• Familiarity with CI/CD and production support.

Responsibilities

• Build and operate JVM-based services using Kotlin or Java.
• Design, build, and operate APIs and integrations.
• Deliver end-to-end features across backend and frontend.
• Develop automated tests and improve pipelines.
• Collaborate in an agile, product-focused team.
• Contribute to architecture discussions and code reviews.

Skills

Kotlin

Java

React

TypeScript

APIs

CI/CD

Logging/Monitoring

Tools

Spring Boot

Quarkus

Micronaut

Ktor

AWS

Azure

GCP

Job description

Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation in our DNA. We're trusted to help clients envision and build their businesses for the future – to run smarter today while adapting for tomorrow’s markets, customers, and communities. Our multidisciplinary teams specialise in tech strategy and business innovation, digital solutions and applications, and device and systems engineering. We excel in complex, regulated spaces including health and finance, connecting strategy, tech implementation, and operational services to help clients become more effective, resilient businesses.

If you share our values and want to do the best work, for the right reasons, we can offer you the chance to do it on a global scale and play a real role in shaping our exciting journey.

The role

As a Senior Software Engineer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.

This is a backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services and APIs. You will also contribute to modern web interfaces using technologies such as React and TypeScript.

You will work in an increasingly AI-augmented engineering environment. We are looking for people who are curious about AI-augmented engineering and willing to experiment with tools that improve software delivery. You will not be expected to use AI tools every day, but you should be open to applying them where they provide clear value, while validating outputs for correctness, security and maintainability.

Working closely with product managers, designers, engineers, and architects, you will turn product requirements into well-structured, maintainable, production-ready solutions. You will contribute throughout the delivery lifecycle—from technical discovery and implementation through to deployment, production support and continuous improvement.

You will take ownership of significant features and services, contribute to technical decisions, support other engineers and help maintain high standards of engineering quality.

How you will make an impact

• Build and maintain reliable JVM-based services using Kotlin or modern Java.

• Design and develop APIs and integrations following industry standards.

• Contribute to API design standards and documentation.

• Deliver complete end-to-end features by connecting backend services and data with responsive web interfaces.

• Use appropriate test-first and test-informed practices to create effective automated tests.

• Experiment with AI-assisted engineering tools where they provide clear value, such as exploring solutions, improving tests, documenting systems or investigating issues.

• Validate AI-assisted outputs for correctness, security, maintainability, and suitability before using them.

• Contribute to event-driven workflows and asynchronous processing.

• Participate in technical discovery, spikes, architecture discussions and peer code reviews.

• Improve build, test and deployment pipelines to support safe and efficient delivery.

• Embed structured logging, metrics and distributed tracing to make services easier to operate and troubleshoot.

• Consider the operational, security and governance implications of engineering decisions, particularly in complex or regulated environments.

• Identify and address technical debt, performance issues and reliability risks.

• Share knowledge, support collective code ownership and contribute to a collaborative, low-ego team culture.

What's important to us

• Strong commercial experience developing server-side applications with Kotlin or modern Java, ideally Java 17 or later.

• Good knowledge of the JVM ecosystem and common backend development practices.

• Experience designing, building and operating APIs.

• Understanding of service reliability, maintainability, performance and security.

• Proven experience writing effective automated tests.

• Practical experience with relational databases.

• Experience with modern frontend development, ideally using React and TypeScript.

• Familiarity with CI/CD practices and supporting software in production.

• Experience working collaboratively in an agile, product-focused engineering team.

• Curiosity about AI-augmented engineering and a willingness to develop new ways of working.

• A thoughtful approach to code quality, technical trade-offs and continuous improvement.

Desirable experience

• Practical experience using AI-assisted development or productivity tools in a software engineering context.

• Familiarity with asynchronous event-driven architecture.

• Experience with frameworks such as Spring Boot, Quarkus, Micronaut or Ktor.

• Cloud platforms such as AWS, Azure or GCP.

• Developing with containers

• Understanding the difference between relational, NoSQL and other persistence technologies.

• Experience building shared platforms, common services or greenfield technical foundations.

• Building APIs adhering to design principles such as RESTful API design

• Building observable systems

• Experience in regulated or financial-services environments.

• Exposure to payments, transaction processing or other business domains.

• Equivalent experience with comparable technologies will be considered.

What success looks like

• deliver valuable, production-ready features with the squad;

• build services and APIs that are reliable, reusable and easy for others to consume;

• improve the reliability, performance and operability of the services you work on;

• use emerging engineering tools thoughtfully and responsibly where they add value;

• contribute constructively to technical decisions, API standards and code reviews;

• help the team release software safely and efficiently; and

• support a culture of learning, collaboration and shared responsibility.

Working environment

You will work as part of a cross-functional engineering squad alongside product, design and delivery colleagues. The role is expected to remain substantially hands-on, with opportunities to influence technical direction and support the development of other engineers.

The role may include working on-site with clients, collaborating directly with client stakeholders and delivery teams to understand their needs, shape technical solutions and support successful delivery. This may involve occasional travel or agreed on-site working, depending on the project and client requirements.

What we offer

• Work life blend:we offer a safe & healthy workplace, with flexible working hours and the possibility to work from home

• Profit share scheme:In addition to your annual salary, you may receive a profit share defined by the company’s success in the previous year

• Global and Diverse Zühlke community:witness how colleagues from all our 16 offices across the globe come together to create a unique, positive and inclusive work culture, learning from one another at annual team camps, and celebrating year-end parties and other local festivities.

• Committed to development:we are committed to the growth of our people and are investing in your development. We’re empowering you to build the skills you need to make a positive impact, both personally and for our clients, today and in the future.

We welcome people from all backgrounds, regardless of their gender, personality, national origin, race, religion, colour, sexual orientation, gender identity, age, marital status, disability or veteran status.