Mid-Level Security Software Engineer – Web Application Firewall (WAF)

Unleash innovation in cybersecurity — develop cutting-edge web application firewall solutions! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Software Developer in Transformation & Digital IT, you will be working for our client, a leading global financial services organization. You will contribute to designing and implementing a modsec-based Web Application Firewall (WAF) that secures internal services across the organization. This role offers an exciting chance to work on a state-of-the-art security project in a fast-paced, agile environment, fostering professional growth and technological innovation. Your main responsibilities: • Take ownership of end-to-end delivery of development tasks, including requirements analysis, design, coding, testing, and deployment. • Collaborate with global teams in Europe and Asia to ensure seamless project execution. • Participate actively in agile ceremonies such as Sprint planning, Scrum meetings, and Backlog grooming. • Automate deployment, monitoring, and testing processes to enhance efficiency and cycle time. • Work closely with engineers, architects, and stakeholders to understand data flow, optimize application performance, and improve platform monitoring. • Resolve production issues during UK working hours, ensuring platform stability and swift resolution. You're ideal for this role if you have: • At least 4 years of experience in a fast-paced, agile environment. • Proficiency in C and Linux/Unix systems. • Strong knowledge of HTTP APIs, such as RESTful services. • Experience designing scalable, secure, and resilient solutions on Cloud platforms (GCP/AWS) and on-premise environments. • Familiarity with software design best practices, unit and integration testing. • Excellent communication skills and ability to work collaboratively across teams. • Self-motivated, analytical mindset with decisive problem-solving skills. It is a strong plus if you have: (optional)• Knowledge of Java JNI and modern system integration. • Experience with Node.js and related system architectures. • Familiarity with HSBC-cranker or similar enterprise security tools. Language Required for the role: • Fluent English (required). Eligibility to work in this role: • Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER 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.