Senior Backend Software Engineer

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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. Kensho's solutions and research focus on business and financial generative AI applications, agents, data retrieval APIs, data extraction, and much more.

Emergence, our team within Applications, develops systems enabling the use of cutting‑edge ML technology in our customer’s workflows. Our focus is on building solutions that seamlessly connect S&P's proprietary data with LLM‑based systems, empowering customers with reliable, innovative, and trustworthy experiences. This specific role is for a Senior Backend Engineer working on our PDF document processing platform, Extract. You will develop reliable, secure, and performant APIs that apply Kensho’s AI capabilities to specific customer workflows, collaborating with Product, Machine Learning, Infrastructure, and Design teams.

• 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

• Python, FastAPI, Django, mypy, OpenAPI, Open Search, PostgreSQL
• Git, Jsonnet, Jenkins, Docker, Kubernetes

• 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.

Mid‑Senior level

Full‑time

Engineering and Information Technology

Software Development

Job

Posted On:

Location:

Cambridge, Massachusetts, United States