Application Security Engineer

SOFTSWISS; Warszawa; On-site; PLN 60,000 - 90,000; Full time

Benefits offered by this job

Full-time remote work opportunities

Private insurance

Additional 1 Day Off per calendar year

Sports program compensation

Comprehensive Mental Health Programme

Free online English lessons

Generous referral program

Training and workshops

Job summary

A leading iGaming security company located in Warsaw is seeking an experienced Application Security Engineer to enhance the security of applications through the software development lifecycle. This role involves collaborating with product teams, conducting manual code reviews, managing a bug bounty program, and contributing to secure code practices. The ideal candidate has a university degree, over 2 years of experience in application security, and a deep understanding of common web vulnerabilities. Flexible working hours and full-time remote work options are available.

Qualifications

• 2+ years of experience in application security.
• Deep understanding of common web application vulnerabilities (e.g., OWASP Top 10).
• Intermediate or higher English level.

Responsibilities

• Lead threat modeling and risk assessments during the design phase.
• Perform in-depth manual code reviews to identify vulnerabilities.
• Manage the bug bounty program and collaborate on vulnerabilities.

Skills

Application security

Vulnerability assessment

Secure software development

Web application security

Threat modeling

CORS knowledge

OAuth/OIDC/JWT understanding

Root-cause analysis

Education

University degree in Computer Science or Information Security

Tools

SAST/DAST tools

Job description

Overview:

SOFTSWISS is looking for Application Security Engineer to join our team. SOFTSWISS security team takes care of iGaming services protection, data privacy, and business continuity to ensure that nothing distracts satisfied customers from using our products. We work closely with the IT team that develops and supports our services, and together we create genuinely excellent and secure iGaming products.

Purpose of the role:

Our goal is to make sure that we deploy secure software to production without unnecessary bottlenecks, that applications are properly hardened, and security vulnerabilities, once discovered, are fixed by the developers.

As an Application Security Engineer, you will play a crucial role in ensuring the security of our applications throughout the entire software development lifecycle (SDLC). You will partner closely with the product teams to identify, analyze, and mitigate security vulnerabilities, contributing to the creation of trustworthy and robust products.

Key responsibilities:

• Partner with product teams during the design phase to lead threat modeling and risk assessments sessions, translating complex security threats into clear, actionable security requirements.
• Perform in-depth manual code reviews on critical applications to identify complex logical vulnerabilities as part of white-box security assessment.
• Plan, design, implement, automate and (if you wish) support AppSec tools.
• Contribute to building a company-wide processes for secure code development and deployment.
• Triage identified security vulnerabilities, provide clear and actionable descriptions and ensure these findings are properly addressed and mitigated.
• Manage the bug bounty program, collaborate with researches and internal teams to resolve the discovered vulnerabilities.
• Partner with Dev/QA teams throughout the development lifecycle to enhance the application's security posture by providing expert consulting, continuous knowledge sharing, and actionable security guidance.

Required Experience:

• 2+ years of experience in application security.
• Knowledge of secure development processes and best practices.
• Deep understanding of web application security mechanisms (i.e., how the web actually works? What is SOP and why do we need CORS? What is CSP?).
• Deep understanding of common web application vulnerabilities (i.e., OWASP Top 10), and the most effective ways to prevent them.
• Knowledge of secure system/application architecture and design principles.
• Understanding of modern threats to high-performance web applications that are used by millions of users daily.
• Understanding of modern authentication/authorisation patterns (OAuth, OIDC, JWT, etc.)
• Practical hands-on expertise in identifying vulnerabilities through security assessment and secure code review, coupled with the ability to perform deep root-cause analysis to drive systemic fixes.
• University degree in Computer Science, Information Security, or related field, or equivalent combination of education and experience.
• Intermediate or higher English level.

Nice to have:

• Passion about programming.
• Technical knowledge of network and operating systems security.
• Hands-on DevSecOps experience.
• Practice of participation in bug bounty programs and/or CTFs.
• Deep knowledge of SAST/DAST tools, including customisation.
• Relevant certifications (i.e., OSWE, GWEB, etc.).

Our Benefits:

• Full-time remote work opportunities and flexible working hours
• Private insurance
• Additional 1 Day Off per calendar year
• Sports program compensation
• Comprehensive Mental Health Programme
• Free online English lessons with a native speaker
• Generous referral program
• Training, internal workshops, and participation in international professional conferences and corporate events.