Senior Backend Software Engineer

Position Overview

Senior Backend Software Engineer at Kensho Technologies, a hub for AI innovation and transformation within S&P Global. In this role you will develop reliable, secure, and performant APIs that leverage Kensho’s AI capabilities to power customer workflows. You work in a small, product‑focused team that values collaboration, open communication, and engineering best practices. Our internal culture promotes flexibility‑first work arrangements, with required in‑person collaboration at our campuses in Cambridge, MA or NYC when necessary.

• Design, develop, test, document, deploy, maintain, and improve software.
• Manage individual project priorities, deadlines, and deliverables.
• Work with key stakeholders to develop system architectures, API specifications, implementation requirements, and complexity estimates.
• Test assumptions through instrumentation and prototyping.
• Promote ongoing technical development through code reviews, knowledge sharing, and mentorship.

• At least five years of direct experience developing customer‑facing APIs within a team.
• Thoughtful and efficient communication skills (both verbal and written).
• Experience developing RESTful APIs using a variety of tools.
• Experience turning abstract business requirements into concrete technical plans.
• Experience working across many stages of the software development lifecycle.
• Sound reasoning about the behavior and performance of loosely‑coupled systems.
• Proficiency with algorithms (including time and space complexity analysis), data structures, and software architecture.
• At least one domain of demonstrable technical depth.

• Development:
  Python, Flask, FastAPI, Django REST Framework, Postgre
  
  SQL, Celery, Rabbit
  
  MQ, Redis, Kafka, Jsonnet.
• Operations: AWS, Docker & Kubernetes, Sentry, Prometheus, Git, Jenkins, CI/CD pipelines.

Anticipated base salary range: $150,000–$225,000. Eligible for an annual incentive bonus and equity plans. Compensation decisions are based on facts and circumstances of each case.

• Medical, Dental, and Vision insurance with 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 matching on donations to non‑profit charities.
• Up to $20,000 tuition assistance and $4,000/year for professional education.
• Plentiful snacks, drinks, and regularly catered lunches.
• Dog‑friendly campus (CAM office).
• Bike sharing program memberships.
• Compassion and elder care leave.
• Mentoring and learning opportunities.
• Professional networking and conference participation.

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We are an equal‑opportunity employer that welcomes candidates of all backgrounds. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

Location:

Cambridge, Massachusetts, USA
Seniority Level: Mid‑Senior

Employment Type:

Full‑time
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