Lead Engineer - AI-Native Email App
HybridTokyo, Tokyo, Japan
Job Summary
Design scalable, reliable systems across backend, frontend, APIs, databases, and infrastructure while writing, reviewing code, and debugging production issues. Lead technical design for major products and features, making architecture decisions that balance speed, scalability, and maintainability. Mentor engineers, review technical designs, and break ambiguous problems into clear execution plans. Own systems beyond release by monitoring production, investigating incidents, and resolving root causes. Improve engineering tooling and automation to increase team velocity. Work closely with product, design, and AI teams to ship high-quality products, ensuring you remain hands-on with prototyping and code reviews.
Required Qualifications
- Strong software engineering background with significant experience building and shipping production systems
- Deep technical expertise in one or more areas such as backend, frontend, distributed systems, APIs, databases or cloud infrastructure
- Strong system design and architecture skills with experience making technical decisions for complex or high-scale systems
- Strong coding ability and willingness to remain hands-on
- Proven experience leading major engineering projects or providing technical leadership to other engineers
- Comfortable reviewing code, debugging complex issues and working directly with production systems
- Able to explain complex technical decisions clearly and influence engineers across teams
- Strong product sense and ability to connect technical decisions to customer and business outcomes
- Able to work fast with ambiguity and take ownership from problem definition through production
- Strong judgment around when to move quickly, when to simplify and when deeper engineering investment is required
- English is our main working language across global teams. Strong English communication is required
- Candidates should be based in, or able to work from, the location where the role is advertised
- You are expected to work from our local office at least 3 days per week
Hiring someone like this?
Get your role in front of qualified candidates on Sorce.