Senior Backend Developer (Kotlin/Java) – Platform Scaling Specialist

deltaconX AG; Meggen; Vor Ort; CHF 57’000 - 71’000; Vollzeit

Zusammenfassung

A leading company in regulatory compliance solutions is seeking a Senior Backend Developer (Kotlin/Java) to enhance their platform's scalability and performance. The role involves architectural decisions, optimizing performance, and migrating to a microservices architecture. Join a dynamic team committed to innovation and growth in a collaborative environment.

Leistungen

Flexible hours

Remote work options

Professional growth opportunities

Modern office with excellent infrastructure

Qualifikationen

• Experience scaling transaction-heavy, performance-critical SaaS or enterprise systems.
• Fluent in Java and/or Kotlin, comfortable in hybrid codebases.

Aufgaben

• Design and implement scalable, service-oriented solutions in Kotlin and Java.
• Refactor legacy components and enhance system robustness.

Kenntnisse

Kotlin

Java

Collaboration

Communication

Tools

GitLab

Kubernetes

Kafka

Spring

Micronaut

Postman

Jobbeschreibung

Senior Backend Developer (Kotlin/Java) – Platform Scaling Specialist

Join to apply for the Senior Backend Developer (Kotlin/Java) – Platform Scaling Specialist role at deltaconX AG.

Overview

Location: Vienna, Austria
Working hours: Full-time

Our unified SaaS platform, deltaconX, simplifies regulatory compliance and streamlines transaction reporting processes. Since 2013, we've been committed to helping businesses meet evolving regulatory demands efficiently.

Our platform is the go-to solution for clients to comply with regulations like EMIR, MiFIR, SFTR, REMIT, MAS, HKMA, and more. As we expand globally through our Go-Global initiative and strategic partnerships, we're seeking talented individuals to shape the future of regulatory compliance and deliver innovative solutions.

With our client base growing rapidly and a 10X increase in daily transaction volume year over year, we are entering a new phase of engineering—scaling our product to ensure performance, reliability, and maintainability under enterprise-level load. We need a Senior Developer with experience and vision to help evolve our platform.

Your Impact

You will play a key role in transforming our proven solution into a highly scalable, distributed platform serving enterprise clients worldwide. This involves architectural decisions, performance optimization, and migrating from a monolithic structure.

Your Responsibilities

• Design and implement scalable, service-oriented solutions in Kotlin (2+) and Java (21), aligned with our performance and availability goals.
• Refactor legacy components and enhance system robustness under increasing loads.
• Collaborate across teams to modernize architecture and develop resilient, observable, and horizontally scalable features.
• Work with our tech stack: Kotlin (2+), Java (21), Spring, Micronaut, Kafka, Camel, Artemis JMS, Hibernate, Kubernetes, Helm, REST, SOAP, MySQL, PostgreSQL, Elasticsearch, ELK Stack.
• Utilize developer tools like JetBrains IntelliJ + AI, DataGrip, Lens, Rancher, Postman.
• Build and maintain CI/CD pipelines with GitLab for rapid, safe deployments.
• Participate in architectural discussions and influence key tech decisions as we scale globally.

Your Profile

• Experience scaling transaction-heavy, performance-critical SaaS or enterprise systems.
• Fluent in Java and/or Kotlin, comfortable working in hybrid codebases transitioning from monolith to microservices.
• Hands-on experience with distributed systems, Kafka, and resilient service design.
• Proficient with Kubernetes deployments, observability, and maintainability.
• Knowledge of modern CI/CD workflows and infrastructure-as-code, ideally with GitLab.
• Enjoy collaborative environments with flat hierarchies and shared ownership.
• Excellent communication skills in English; German is a plus.
• Applicants must be from the EU, hold an Austrian Blue Card, or Red White Red Card.

What We Offer

• An interesting, varied role in a dynamic, ambitious company with flat hierarchies.
• International environment with opportunities for professional and personal growth.
• Flexible hours and remote work options.
• Modern office at Wienerberg with excellent infrastructure and benefits.

We are committed to a fair, inclusive workplace rooted in trust and mutual respect. Diversity is vital to our success, and we aim to build a team reflecting various backgrounds and talents.

Salary starts at EUR 60,900 annually, based on the IT collective agreement, with potential overpayment based on experience.

Additional Details

• Seniority level: Mid-Senior level
• Employment type: Full-time
• Job function: Engineering and IT
• Industry: Software Development

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