Senior Java Developer with C++ familiarity

Luxoft Poland; Kraków; On-site; PLN 180,000 - 280,000; Full time

Job summary

Luxoft Poland in Kraków is seeking a senior Software Developer to maintain and migrate existing components to Java for internal exchanges, liquidity pools, brokers and price vendors. The role emphasizes low-latency Java development and C++ interoperability.

You will work in an Agile team, own deliveries, and help transition remaining C++ components to Java while expanding into adjacent areas of the stack. The team operates in fast-paced cycles and emphasizes automation and reliability.

Qualifications

• 5+ years hands-on Java experience with a focus on low latency systems.
• Willingness to work with C++ during migration to Java.
• Strong Linux/Bash knowledge.
• Knowledge of event streaming and messaging systems.
• Ability to produce secure, stable and performant code.

Responsibilities

• Maintain and develop Java components for internal/external exchanges, liquidity pools, brokers and price vendors.
• Migrate remaining C++ components to Java.
• Develop new functionality and automated test scripts.
• Work in an Agile team delivering in two-week cycles.
• Deliver innovative, high-quality solutions for Investment Banks trading stacks.
• Collaborate with stakeholders to introduce automated processes and practices.

Skills

Java (5+ yrs)

Low latency design

Linux/Bash

Event streaming

Secure code

C++ readiness

Job description

Responsibilities

The Role will be to maintain and develop existing and new components to both internal and external exchanges, liquidity pools, brokers and price vendors. Currently this components exist in both Java and C++. The direction is to migrate all these components to Java.

The successful candidate will likely have a C++ background that have moved over to Java or have an interest to over to Java. One of the main tasks will be to transition the remaining C++ components to Java.

When all components are on Java there will be opportunities to expand into other areas in the application stack.

We're looking for a passionate Software Developer with strong Can-Do attitude who:

has strong sense of ownership and drives front-to-back assigned deliveries within a supportive team environment

cooperates with different stakeholders in introduction and facilitation of new automated processes and practices

is comfortable within a fast moving Agile team delivering in 2-weekly cycles

develops new functionality as well as automated test scripts

delivers innovative solutions in the Investment Banks Derivatives Principal Flow Trading Business

Must have

• 5+ years of hands-on Java experience, ideally focusing on low latency systems
• Readiness to work with C++ in scope of components migration to Java
• strong Linux/Bash knowledge
• knowledge about event streaming and messaging systems
• able to produce secure, stable and good performing code

Nice to have

• C++ experience, focusing on low latency systems