Senior Full Stack Python Engineer – Cybersecurity Solutions

Unleash cybersecurity innovation — develop resilient solutions at the forefront of digital defense.

Krakow or Warsaw-based opportunity with hybrid work model (up to 3 remote days per week).

As a Senior Full Stack Python Engineer, you will be working for our client, a global leader in financial services, within the cybersecurity domain. You will help design and build scalable, secure software solutions that safeguard the bank’s digital assets, enabling millions of customers worldwide to bank confidently and securely. Join a dynamic team driving technological excellence and continuous innovation in cybersecurity.

Your main responsibilities:

• Develop and deploy REST API services and microservices using Python frameworks such as FastAPI, Flask, or Django.
• Collaborate with cybersecurity experts to translate security requirements into scalable, automated software solutions.
• Integrate third-party vulnerability scanning tools and build in-house security testing capabilities.
• Support the deployment of services in containerized environments using Docker and Kubernetes, ensuring high availability and performance.
• Write automated test cases for unit, integration, and functional testing to maintain code quality.
• Conduct peer code reviews, support troubleshooting, and optimize existing services for operability and performance.
• Contribute to continuous improvement of development processes within an agile/DevSecOps environment.
• Document solutions and technical procedures in line with governance standards.

You're ideal for this role if you have:

• Over 6 years of experience in full-stack Python development with frameworks like FastAPI, Flask, or Django.
• Strong understanding of microservice architecture, CQRS, SAGA, and event sourcing.
• Experience deploying services with Docker and Kubernetes.
• Advanced SQL skills, with ability to craft complex queries.
• Knowledge of cloud data warehouse platforms such as BigQuery or RedShift.
• Linux sysadmin skills and a solid grasp of networks and protocols like TCP/IP, DNS, firewalls.
• Proficiency with Git and branching strategies like GitFlow.
• Some frontend development experience using HTML, CSS, JavaScript.
• A test-driven mindset with experience in automated testing frameworks.
• Good understanding of agile methodologies and DevSecOps tools like Jira and Confluence.
• Excellent communication skills in English (fluent level).

It is a strong plus if you have:

• Cybersecurity-related experience such as working with SAST, DAST, penetration testing, or threat detection.
• Experience in cloud platforms such as AWS, GCP, or Azure, including infrastructure as code with Terraform.
• Frontend frameworks like React.
• Database administration skills across relational and non-relational systems like MSSQL, Postgres, or MongoDB.
• Experience working with message queues like Kafka or RabbitMQ.

Eligibility for the role:
Only candidates with an existing legal right to work in the European Union will be considered for this role.

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Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

Tech stack

• Python
• fastapi
• Flask
• Django
• Microservices architecture
• Docker
• Kubernetes
• SQL
• REST API
• Cybersecurity