Senior C++ Backend Engineer for FinTech Platform

OANDA Corporation; Kraków; On-site; PLN 250,000 - 360,000; Full time

Job summary

OANDA is seeking a Senior Backend Engineer to architect and implement high‑performing C++/Python systems for our trading platform in Kraków. You will contribute to data services, microservices, and risk management components that power thousands of customers.

You will work in a Linux environment, collaborating with engineers and product teams to design scalable solutions, participate in code reviews, and own CI/CD pipelines while mentoring others.

Qualifications

• MSc/BSc in CS or related field; strong fundamentals in software engineering.
• Proven experience building backend services in C++ and Python.
• Experience with multithreading, concurrency, and scalable architectures.

Responsibilities

• Develop and maintain backend services in a Linux environment.
• Collaborate with business and technical leadership to design and implement systems.
• Own CI/CD pipelines and release processes; mentor teammates.

Skills

C++ development

Python programming

Multithreading

Data structures & algorithms

Clean code

Education

Bachelor's degree in Computer Science or related field

Tools

Linux

CI/CD tooling

Job description

OANDA is seeking a Senior Backend Engineer to architect and implement high‑performing C++/Python systems for our trading platform in Kraków. You will contribute to data services, microservices, and risk management components that power thousands of customers.

You will work in a Linux environment, collaborating with engineers and product teams to design scalable solutions, participate in code reviews, and own CI/CD pipelines while mentoring others.