As a Senior Full-Stack Software Engineer, you will build AI-centric web applications in TypeScript ranging from experimental POCs to full-fledged product offerings. You'll have significant autonomy over technical and architectural choices, and be responsible for managing short- and long-term trade-offs. The ideal candidate loves product and views technology as a means, not an end, and is excited to collaborate across all aspects of the software development lifecycle.
Kensho states that the anticipated base salary range for the position is 150k-225k. In addition, this role is eligible for an annual incentive bonus and equity plans. At Kensho, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case.
What You'll Do:- Build full-stack and SPA TypeScript applications ranging from experiments to flagship products
- Collaborate on product decisions and communicate technical constraints and considerations
- Own and collaborate on technology/architecture decisions and conventions
- Teach and learn from the team and the broader organization via mentorship, code review, knowledge sharing, etc.
- Self-sufficiently manage project priorities, estimates, and deliverables
What You'll Need:- At least five years of direct experience building commercial web applications in JavaScript/TypeScript
- At least three years of that experience working directly on web UIs in a modern framework
- At least one domain of deep technical expertise (e.g., web performance, design systems, framework knowledge, etc.)
- Product sense, or a strong interest in developing it
- Kind, thoughtful, and high-signal communication skills for both technical and non-technical audiences
- Ability to translate ambiguous needs and constraints into clear technical requirements
Technologies & Tools We Use:- Development: TypeScript, React, Next.js, Tailwind, LangGraph, AI SDK, Drizzle
- Ops: Git, GitHub, Amazon EKS, AWS, Sentry, Langfuse, Prometheus
At Kensho, we pride ourselves on providing top-of-market benefits, including:
- Medical, Dental, and Vision insurance
- 100% company paid premiums
- Unlimited Paid Time Off
- 26 weeks of 100% paid Parental Leave (paternity and maternity)
- 401(k) plan with 6% employer matching
- Generous company matching on donations to non-profit charities
- Up to $20,000 tuition assistance toward degree programs, plus up to $4,000/year for ongoing professional education such as industry conferences
- Plentiful snacks, drinks, and regularly catered lunches
- Dog-friendly office (CAM office)
- Bike sharing program memberships
- Compassion leave and elder care leave
- Mentoring and additional learning opportunities
- Opportunity to expand professional network and participate in conferences and events
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We are an equal opportunity employer that welcomes future Kenshins with all experiences and perspectives. Kensho is headquartered in Cambridge, MA, with an additional office location in New York City. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.
