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Xibix invites applications for the Senior Rust Developer - Security Focus (all genders) role based in Porto. This full-time opportunity places you at the heart of building secure, high-assurance systems with one of the industry’s most safety-oriented languages. About This Position The Senior Rust Developer - Security Focus (all genders) post at Xibix in Porto centres on creating and refining memory-safe applications where security is a first-class design concern. You will work onsite in Porto, applying advanced Rust idioms to real-world security challenges while shaping technical direction within a collaborative engineering culture. The position calls for seasoned judgment, clear communication, and a commitment to producing reliable, well-documented code that withstands rigorous scrutiny. Core Duties Architect, implement and evolve critical software modules written in Rust with explicit attention to safety and adversarial resilience Perform threat modelling, secure design reviews and systematic code analysis to identify and eliminate vulnerabilities early Develop and maintain reusable security-oriented libraries and patterns that the wider team can adopt Partner with neighbouring engineering groups to embed defensive techniques into product roadmaps Guide less experienced colleagues through Rust ownership rules, concurrency models and secure coding standards Document design decisions, security rationale and operational guidance for long-term maintainability Requirements Demonstrable senior-level practical experience of professional software delivery using the Rust language Solid track record of security-centric development, including memory-safety guarantees, cryptographic building blocks and systematic defence against common attack classes Deep command of systems-level programming concepts, ownership and borrowing, asynchronous patterns and low-level performance trade-offs Ability to articulate security trade-offs, produce clear technical prose and thrive in a structured, on-site team environment in Porto Comfort mentoring peers and raising overall engineering hygiene around secure Rust practice About Xibix Xibix is hiring for this role and offers a supportive team environment. Ready to Apply? To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
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