Senior Backend Software Engineer Job at Kensho Technologies (Cambridge, Massachusetts)

Senior Backend Software Engineer

Kensho Technologies

Location:
United States , Cambridge, Massachusetts ▼
New York, New York

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

150000.00 - 225000.00 USD / Year

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Job Description:

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. Kensho’s Applications group develops the web apps and APIs that deliver Kensho’s AI capabilities to our customers. 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.

Job Responsibility:

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

Requirements:

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

What we offer:

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

Additional Information:

Job Posted:
December 09, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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