Principal Engineer, Cross-Platform Engine

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