Senior Full-Stack Software Engineer (JavaScript)

About Kensho

Kensho is S&P Global’s hub for AI innovation and transformation. With expertise in machine learning, natural language processing, and data discovery, we develop and deploy novel solutions to innovate and drive progress at S&P Global and its customers worldwide.

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

• TypeScript, React, Next.js, Tailwind, LangGraph, AI SDK, Drizzle
• Git, GitHub, Amazon EKS, AWS, Sentry, Langfuse, Prometheus

Compensation

Base salary range: $150,000–$225,000 annually. Eligible for an annual incentive bonus and equity plans.

Benefits

• 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

Location

Kensho is headquartered in Cambridge, MA, with an additional office location in New York City.

Equal Opportunity Employer

We are an equal opportunity employer that welcomes future Kenshins with all experiences and perspectives. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.