Hypercubic (YC F25) · 20 hours ago
Founding Mainframe Expert
United States
Full-time
Remote
Senior Level
$150K/yr - $250K/yr
6+ years expHypercubic is building AI systems for mainframe modernization, focusing on program analysis and knowledge extraction. The role involves being a hands-on technical authority on mainframe systems and working closely with the CEO and CTO to shape the product and technical direction.
Artificial Intelligence (AI)B2BEnterpriseEnterprise SoftwareSoftware
No H1B
Responsibilities
Act as a hands-on technical authority on mainframe systems, including COBOL, JCL, RPG, and the surrounding legacy ecosystem
Read, reason about, and critique real production codebases and system architectures
Pressure-test Hypercubic’s product against real-world constraints such as batch processing, data dependencies, operational risk, testing complexity, and regulatory requirements
Work directly with engineering to validate workflows, abstractions, and outputs at a technical level. Translate deep system behavior into product requirements
Lead technically rigorous discovery conversations with enterprise prospects
Support enterprise sales cycles with real technical credibility, from first call to signed annual contract. Help define pilots and PoCs with concrete technical scope and measurable outcomes
Engage with system integrators and partners on technically realistic deployment and integration paths
Qualification
Required
6+ years of experience working directly inside production mainframe environments
Expertise in COBOL
Ability to act as a hands-on technical authority on mainframe systems
Competence to read, reason about, and critique real production codebases and system architectures
Ability to pressure-test products against real-world constraints
Experience working directly with engineering to validate workflows and outputs
Experience leading technically rigorous discovery conversations with enterprise prospects
Ability to support enterprise sales cycles with technical credibility
Experience engaging with system integrators and partners
Preferred
Have 10+ years working directly with production mainframe systems
Hands-on experience reading, debugging, and modifying large COBOL codebases
Strong working knowledge of JCL and batch processing in real enterprise environments
Experience with online transaction systems (e.g. CICS, IMS) and associated data stores (e.g. DB2)
Direct involvement in at least one real modernization, migration, or large-scale refactoring effort
Ability to reason about system behavior across code, data, and operations
Experience leading technical discussions with enterprise customers
Experience scoping work, defining pilots, and navigating long enterprise sales cycles
Comfort owning outcomes, including technical risk and commercial commitments
Benefits
Generous health, dental, and vision benefits
PTO
Relocation support as needed
Company
Hypercubic (YC F25)
Hypercubic uses AI to understand complex mainframe/COBOL systems and preserve the human expertise behind them — making every line of legacy code that runs the world understandable and future-proof.
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$0.5MKey Investors
Y Combinator
2025-12-03Pre Seed· $0.5M
Leadership Team
Sai Gurrapu
Co-Founder, CEO
Aayush Naik
CTO & Co-Founder
Company data provided by crunchbase