Definity is hiring for a Sr. Staff Software Engineer to lead the design and development of scalable, high-performance software solutions for a mission-critical project with a leading automotive company in Fremont, California. This role is ideal for someone who enjoys solving complex technical challenges, mentoring engineers, and driving architectural decisions. At Definity, a leading technology company focused on AI-driven solutions and digital transformation, we are continuously expanding our team to support innovative, high-impact projects.
Deliver high-quality, maintainable code that addresses real-world manufacturing challenges
Lead end-to-end projects from requirements gathering and architectural design through implementation, testing, and production deployment
Bridge communication gaps between factory floor equipment (PLCs) and high-level MES services
Tackle problems across the stack from debugging PLC communications to ensuring data consistency in globally distributed databases
Mentor engineers and uphold global standards of excellence in software craftsmanship
Prioritize robust, production-critical systems with strong validation, monitoring, and support mechanisms
Collaborate with cross-functional teams including Operations, Manufacturing Engineering, Quality, and Supply Chain
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This is an on-site position in Fremont, California.
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Relocation to the United States is required, TN Visa sponsorship provided
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This opportunity is open to candidates based in Mexico with a valid Mexican passport and an active visa (tourist or otherwise)
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Bachelor's degree and professional license (cédula profesional)
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5+ years of professional experience in backend or server-side development
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Proven track record delivering large-scale projects in Go, Java, C++, Rust, or similar languages
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Strong understanding of backend fundamentals including SQL databases, networking, and security
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Basic familiarity with frontend technologies (HTML, JavaScript, CSS) and at least one modern framework such as React, Angular, or Svelte
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Proficiency in rigorous software development practices including version control, code reviews, CI/CD pipelines, monitoring, and logging
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Familiarity with controls engineering concepts, manufacturing processes, and PLCs
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Hands-on experience with Ignition and MES systems is a strong plus
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Excellent communication skills and demonstrated ability to lead technical initiatives from concept to production
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Hands-on experience with Ignition and MES systems
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Background in manufacturing, industrial tech, or controls engineering
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Experience debugging PLC communications and distributed database consistency
