Senior Backend Developer

Wyden Inc.; Polska; On-site; PLN 270,000 - 390,000; Full time

Benefits offered by this job

Flexible / remote working policies

Career development opportunities

Global fintech team collaboration

Job summary

Wyden Inc. is seeking a Senior Backend Developer for a fully remote role.

You will design and implement core features for Wyden’s product suite and quantitative trading strategies using Java/Kotlin, cloud services, and distributed systems in a fast-growing fintech environment. You will collaborate with product management and engineering teams, focusing on low-latency architectures, secure and scalable services, and AI-assisted development tools to deliver reliable solutions for financial

Qualifications

• Minimum 8–10 years of engineering experience.
• Proficiency in Java and/or Kotlin.
• Strong experience with distributed systems.
• Bachelor’s degree in IT/CS or equivalent.
• Experience in financial services, trading, or crypto is a strong plus.

Responsibilities

• Design and implement future releases of Wyden core product and trading strategies.
• Collaborate with product management, development team, head of development and customers.
• Develop and operate distributed systems in the cloud environment.
• Incorporate industry best practices and security considerations.
• Focus on low latency, order management, event handling, and scalable services.

Skills

Java

Kotlin

Distributed systems

AI-assisted tools

Async/event-driven

Education

Bachelor’s degree in IT/Computer Science or equivalent practical experience

Tools

Kafka

RabbitMQ

AWS

Docker

Kubernetes

AWS EKS

Job description

Senior Backend Developer

Remote, Full time, Technology Team

Wyden is seeking a passionate and skilled Senior Back-end Developer who possesses a keen eye for detail, and a natural thirst for working with industry leading technology.

Who we are...

Wyden is the leading provider of institutional digital asset trading technology to financial institutions. We are a collaborative and laser-focused team of leaders and engineers committed to building advanced, scalable and modular trading infrastructure that underpins our clients' digital asset product offerings and operations.

Today, dozens of banks, brokers, and financial service institutions rely on Wyden's products. Digital assets are now a mainstream asset class, and financial institutions are fast adopting digital assets in response to digital asset regulations around the globe.

If you are passionate about the institutional digital asset ecosystem and want to play a central role in shaping how the industry connects and grows, Wyden is the home for you.

Established in Zurich, Switzerland, Wyden also has a development hub in Poland.

About the role

We are looking for a Senior Backend Developer based remotely ideally. As a Senior Backend Developer, you will design and implement strategic features for our core product Wyden and quantitative trading strategies for our clients. The successful candidate will be working with the latest Cloud technologies. This is an extremely exciting time to join an ambitious high-growth Fintech with a strong client base and market demand for a well-established solution.

Your responsibilities will include:

1. Design and implementation of future releases of Wyden including key infrastructure components such as low latency order management, execution algorithms, smart order routing, event handling, and business services
2. Close collaboration with product management, development team, head of development and customers
3. Distributed systems engineering and running services in the cloud environment
4. Following current industry trends and incorporating best practices into the solution
5. Understanding of security, authentication and authorization mechanisms

The ideal candidate would bring:

Must have:

1. A minimum of 8–10 years of engineering experience. This is a hard criterion, and candidates who do not meet this level of experience will not be considered.
2. Exceptional proficiency in Java and/or Kotlin.
3. Strong use of modern AI-assisted development tools.
4. Bachelor’s degree in IT/Computer Science or equivalent practical experience.
5. Strong experience designing and building distributed systems.
6. Experience in financial services, trading, capital markets and/or crypto is a strong plus, but not mandatory.

Strong knowledge of the following technical areas:

1. Distributed systems and architectures
2. Asynchronous and event-driven systems
3. Messaging systems, including Kafka and/or RabbitMQ
4. Idempotency and replayability
5. API and schema versioning
6. Resilience, failure handling and fault-tolerant system design
7. Performance optimisation and low-latency systems
8. AWS, including cloud-based application development and integration testing
9. Container orchestration with Docker, Kubernetes and AWS EKS
10. Monitoring and observability tooling
11. CI/CD and process automation
12. Networking concepts
13. Distributed caching
14. Reactive programming
15. Performance testing
16. Clean coding and test automation
17. Agile values, continuous improvement and iterative development

We very much appreciate Cover Letters that provide more context around your knowledge of Digital Assets and motivation for making this application to Wyden (we read every one!)

What Wyden offers

1. An opportunity to play a key role in shaping the future of the digital assets industry.
2. Competitive salary and benefits package
3. Flexible / remote working policies
4. Career development opportunities in a fast-growing startup
5. An open and dynamic work environment where everyone is valued
6. Become part of a global team of professionals with a diverse range of expertise covering banking, trading, software and systems development, and more.