# Principal Engineer, Cross-Platform Engine - Company: [Janeasystems]() - Location: Remote - Remote: Yes - Team: Engineering - Posted: April 9, 2026 ## Job description **Janea Systems (USA)** is a dynamic team of the best & brightest software engineering specialists and solutions innovators, from around the world. From kernel to cloud, we provide high-impact software development services to Fortune 500 companies. We are seeking an exceptionally talented **Client Engine Software Engineer** to join our rapidly growing team.   | | | | --- | --- | | **Location** | Fully Remote / European Residence required | | **Compensation** | Salary | | **Work Schedule** | Full time / Flexible working hours – | | **Reports to** | Head of Engineering | | **Member of** | Engineering Team |   **To be considered for this position, you must have the following qualifications:**   * 10+ years of development experience in systems programming, with a strong C++ focus * Proven ability to design and implement complex, stateful, fault-tolerant, high-performance client-side engines, including extraction engines, parsers, or equivalent systems * Deep experience with advanced algorithms, including tree/graph traversal, heuristics, and performance optimization * Strong fundamentals in concurrency, memory management, and performance profiling * Fast learner with a can-do attitude and exceptional problem-solving abilities * Self-sufficient, proactive, and comfortable working collaboratively on remote projects * English skills (ability to effectively communicate via written and spoken English) * A degree in computer science (or equivalent) **Ideal candidates will also have:**   * Exposure to Rust, or a demonstrated willingness to migrate components from C++ to Rust incrementally * Experience designing or extending declarative rule languages, query engines, or DSLs (e.g. XPath-like systems, custom parsing grammars) * Experience with AI-assisted tooling, including LLM integration, vision models, or hybrid symbolic/ML systems * Hands-on experience with secure local storage solutions such as SQLCipher or encrypted SQLite * Familiarity with accessibility trees, UI automation frameworks, or structured UI extraction * Cross-platform client development experience (Windows, macOS, Android) * Competitive programming background or equivalent problem-solving depth * Experience with secure client-cloud sync, serialization, and versioned protocols **Why join Janea? Because world-class talent deserves world-class opportunities. What we offer:**   * Competitive compensation with benefits, paid vacation, and sick leave. * The opportunity to work with a globally diverse team of top Engineering talent on the industry’s toughest Engineering**c**hallenges. * Ultra-flexible working conditions – we provide a generous office equipment allowance so you can work from home, we can also provide you with a desk at an office/coworking facility near you or use both. No business travel necessary. * An enjoyable, start-up work environment, with excellent opportunities for professional growth and development. * Flexible working hours – as a remote-first company, our focus has always been on getting the job done well, not when or where it gets done.    #LI-DNI ## Apply [Apply on Janeasystems]() Canonical job page: