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Client Engine Software Engineer

Role overview

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 (e.g., extraction engines, parsers)
  • Deep experience with advanced algorithms (tree/graph traversal, heuristics) and performance optimization; strong concurrency and memory management fundamentals
  • Self-sufficient, proactive, and comfortable working on remote projects; excellent English communication; degree in computer science (or equivalent)

Responsibilities

  • Design, implement, and maintain complex, stateful, fault-tolerant, high-performance client-side engines (e.g., extraction engines, parsers)
  • Optimize algorithms, concurrency, memory management, and performance through profiling and benchmarking
  • Collaborate with a globally distributed engineering team; participate in architecture discussions and code reviews; communicate effectively in English
  • Contribute to cross-platform client development and remote-work collaboration initiatives

About the company

Janea Systems logo

Janea Systems

IT Services & IT Consulting

For over two decades, Janea Systems has provided high impact software development services to Fortune 500 companies. From ‘kernel to cloud’, we build mission-critical products and services to enable the acceleration of cutting-edge solutions via deep technology-agnostic expertise. Janea Systems is a dynamic team of the best & brightest systems-level software engineering specialists and solutions innovators, from around the world. We've been trusted, time and again, to handle the most complex technological challenges.

Company details

Company typeScaleup
IndustryIT Services & IT Consulting
Company size51 - 200

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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 enginesincluding 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 challenges. 
  • 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 

 

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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