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Koltin is redesigning elder and disabled care in Mexico through health memberships that provide personalized, preventive care for older adults (up to 84 years old). The company offers the first health memberships in Mexico that include major medical insurance coverage backed by BBVA Seguros Salud.
We are seeking a product-driven Senior Software Engineer to drive projects end-to-end, from unclear problems to shipped solutions with a focus on impact. You will work across the stack as needed, partnering closely with product, design, data, and operations teams.
In this role, you will own end-to-end delivery of complex features and critical workflows, handling ambiguity and trade-offs aligned with team and business priorities. You will define technical approaches for projects, balancing simplicity, reliability, and maintainability. You will lead technical discussions with cross-functional members and stakeholders, and drive debugging of difficult production issues using metrics, logs, traces, and data inspection to test hypotheses and find root causes.
You will multiply the effectiveness of other engineers by coaching and unblocking junior engineers, helping them grow into broader ownership through mentorship, pairing, and code reviews. You will take project-level ownership of data correctness, including data quality, observability, auditing, confidentiality, and incident response. You will design and maintain schemas and transformations while designing monitoring from inception for data invariants and failure modes.
You will champion engineering excellence by improving architecture (modularity, layering, boundaries), influencing technical direction, and leading by example in reviews and incident handling. You will stay close to the business, understanding the problems you're solving and the metrics your project moves, ensuring data integrity and confidentiality throughout.
Requirements:
- Identify with engineering values of Ownership, Collaboration, Growth, Excellence, and Sustainability
- Drive end-to-end delivery of complex features or critical workflows
- Lead debugging of complex production issues calmly using observability and data inspection
- Support other engineers through mentorship, pairing, and code reviews
- Ensure data integrity and confidentiality, including observability and auditing
- Care about engineering excellence (reliability, testing, maintainability)
- Comfortable working across the stack while developing depth in one or two areas
- Use AI-powered tools to increase productivity while retaining full ownership of decisions and outcomes
