Software Developer (Security)

TechBiz Global GmbH

Barcelona, ESremote countryPosted Jun 18, 2026

Skills

postgrestypescripttailwindcomposedockeropenaireactcss

About the role

At TechBiz Global, we are providing recruitment services to our TOP clients from our portfolio.

We are currently looking for a Software Developer with expertise in Security to join one of our client’s teams. This role is ideal for a developer who not only builds high-quality software but also understands secure coding practices, application security, and vulnerability prevention.

Responsibilities

Develop, test, and maintain secure web applications.

Write clean, scalable, and security-focused code.

Build and maintain APIs, backend services, and frontend features.

Identify and resolve security vulnerabilities in applications.

Apply secure coding standards and best practices.

Support secure API development, authentication, and authorization.

Work with WebSockets and real-time application features.

Collaborate with development, product, and security teams.

Participate in code reviews, security reviews, and technical discussions.

Support deployment, configuration, and system hardening.

Prepare technical and security-related documentation when needed

Proven experience as a Full Stack Developer with Security background, Security Developer, Application Security Engineer, or similar role.

Strong hands-on experience with FastAPI.

Strong experience with PostgreSQL.

Experience with React.

Experience with TypeScript.

Experience with Vite.

Experience with Tailwind CSS.

Experience working with WebSockets.

Experience with Docker Compose.

Experience with Nginx.

Experience or familiarity with Anthropic SDK.

Experience or familiarity with OpenAI SDK.

Strong understanding of secure coding practices.

Knowledge of OWASP Top 10.

Experience with application security, vulnerability management, or secure code reviews.

Good understanding of authentication, authorization, API security, and data protection.

Experience with Git and modern development workflows.

Strong analytical and problem-solving skills.

Good communication skills and ability to work with technical teams.

Questions about this role

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Compensation for Security Engineer roles in Spain varies widely by seniority, employer size, and remote vs onsite arrangement. Check the salary range on this listing when published, or browse our Security Engineer hub for Spain medians across recent openings.

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