6 months ago
Kraków, PolandStaff+
Responsibilities
- Design and build distributed backend systems supporting MES and shopfloor control
- Define system architecture, APIs, and data models for high-scale, high-reliability environments
- Develop microservices and integrations connecting internal systems with ERP systems, vendors, and manufacturing partners
- Analyze existing commercial and open-source MES and enterprise solutions to inform system design
- Translate evolving requirements into robust technical solutions and lead prototypes and proofs of concept
- Design and implement data pipelines and workflows across multiple systems
- Enable real-time data movement, transformation, and event-driven automation
- Apply clean architecture, conduct code reviews, enforce development standards, and optimize scalability, performance, and reliability
Requirements
- 5+ years of experience building backend or distributed systems
- Strong programming experience in C#, Java, or Go
- Solid understanding of distributed systems, microservices, and API design
- Strong database design skills, including relational models, normalization, and performance
- Experience with concurrency, parallelism, and scalable system design
- Proficiency with Git, branching strategies, and modern development workflows
- Strong analytical and communication skills, with the ability to work in ambiguous and cross-functional environments
- Experience designing and scaling complex enterprise platforms is preferred for technical lead or architect profiles
- Experience building data pipelines, workflows, and system integrations is preferred for data and integration profiles
- Familiarity with ETL frameworks such as Airflow or n8n is preferred
- Experience with MES or manufacturing systems, industrial equipment, or IoT is a nice-to-have
- Exposure to frontend technologies such as React or Vue is a nice-to-have
Benefits
- Competitive compensation and meaningful equity
- Opportunity to build a greenfield, mission-critical system from the ground up
- Direct impact on AI and photonics infrastructure
- Collaborative, high-caliber engineering team
- Fast-paced, high-growth environment with significant ownership
- Team based in Kraków
About Lumilens
Lumilens designs, manufactures, and sells photonic interconnect hardware for AI and high-performance data centers, targeting hyperscalers and network infrastructure providers. Its factories use custom robotics and AI to build optical links that increase bandwidth and reduce latency between compute nodes. The company was founded in 2024, is headquartered in San Jose, California, and is venture-backed by Mayfield and Spark Capital.