Application Security Engineer

📋 Job Overview

As our Application Security Engineer, you will play a key role in shaping and strengthening the security of our products and platforms. Working closely with highly skilled engineering, platform, and security teams, you will help build secure, resilient, and trusted software while driving a security-first culture across the organization. This is an opportunity to make a measurable impact on modern products, influence security strategy, and continuously develop your expertise in a collaborative and innovative environment.

🏢 About Teliogroup

Our company fosters an open corporate culture in an international working environment where ideas and diversity are promoted. We value a collegial working atmosphere characterized by collaboration and a hands-on mentality.

🎯 The Role

You will be responsible for driving product security across the entire software development lifecycle (SDLC), performing threat modeling, architecture reviews, and security assessments for applications, APIs, and distributed systems. You will also identify, assess, prioritize, and support the remediation of security vulnerabilities.

✅ Key Responsibilities

• Drive product security across the entire software development lifecycle (SDLC).
• Perform threat modeling, architecture reviews, and security assessments for applications, APIs, and distributed systems.
• Identify, assess, prioritize, and support the remediation of security vulnerabilities.
• Integrate, operate, and continuously improve security tooling within CI/CD pipelines, including SAST, DAST, SCA, dependency scanning, and secrets-scanning solutions.
• Define, promote, and support secure coding standards and security best practices across engineering teams.
• Review and advise on authentication, authorization, identity management, secrets management, and service-to-service communication designs.
• Support penetration testing activities, conduct targeted security testing, and drive remediation efforts.
• Contribute to security policies, standards, and security awareness initiatives.
• Partner closely with software engineers, architects, and platform teams to embed security into development processes and strengthen our DevSecOps culture.

📌 Required Qualifications

• 5+ years of experience in Product Security, Application Security, Software Security, Secure Software Development, or a related field.
• Strong understanding of secure software development practices and common application security vulnerabilities.
• Proven experience performing threat modeling, architecture reviews, code reviews, and application security assessments.
• Hands-on experience with SAST, DAST, SCA, dependency-scanning, and secrets-scanning tools.
• Strong knowledge of application security, API security, and distributed-system security.
• Experience securing authentication, authorization, and identity-related workflows.
• Solid understanding of OWASP, CWE, security testing methodologies, and modern security engineering practices.
• Experience working with CI/CD pipelines and applying DevSecOps principles.
• Ability to collaborate effectively with software engineering, platform, and DevOps teams.
• Fluent English skills are required; German language skills are a plus.

⭐ Desirable Experience

• Development experience in C#, .NET, JavaScript/TypeScript, Python, or similar programming languages.
• Experience securing cloud-native applications and services in Azure and/or AWS environments.
• Relevant security certifications such as OSCP, CSSLP, OSWE, or GIAC Secure Development certifications.
• Experience working in agile software development environments.

🎁 Benefits

Modern office: Centrally located, just 5 minutes from Bahrenfeld station - convenient commute guaranteed!

Open corporate culture: Dive into an international working environment where ideas and diversity are promoted.

Collegial working atmosphere: Enjoy an atmosphere characterized by collaboration and a hands-on mentality.

Hybrid work model: Flexibility - Combine on-site and remote work.

30 days of vacation: More time for rest and leisure. Additional free days on December 24 and 31, as well as a half day on your birthday.

Attractive compensation package: We reward your performance appropriately.

Company pension: Generous 25% employer contribution up to €75.

Pluxee vouchers: For carefree meals during work.

HVV subscription or underground parking space subsidy: Support for your convenient commute.

JobRad: After the probation period, you can lease a JobRad.

EGYM Wellpass: After the probation period, stay physically and mentally fit.

🛂 Visa & Eligibility

No visa or work-authorization information provided.