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Senior Backend Software EngineerKensho Technologies • New York, New York, United States
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Senior Backend Software Engineer

Kensho Technologies
  • US
    New York, New York, United States
  • US
    New York, New York, United States
Apply Now

About

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.
At Kensho, we hire talented people and give them the autonomy and support needed to build amazing technology and products. We collaborate using our teammates’ diverse perspectives to solve hard problems. Our communication is open, honest, and efficient. We dedicate time and resources to explore new ideas, but always rooted in engineering best practices, enabling us to innovate rapidly and produce technology that is scalable, robust, and useful.
Kensho’s Applications group develops the web apps and APIs that deliver Kensho’s AI capabilities to our customers. Our teams are small, product‑focused, and intent on shipping high‑quality code that best leverages our efforts. We’re collegial, humble, and inquisitive, and we delight in learning from teammates with backgrounds, skills, and interests different from our own.
Emergence, our team within Applications, develops systems enabling the use of cutting‑edge ML technology in our customers’ 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.
As a Senior Backend Engineer on Emergence, you will develop reliable, secure, and performant APIs that apply Kensho’s AI capabilities to specific customer workflows. You will collaborate with colleagues from Product, Machine Learning, Infrastructure, and Design, as well as with other engineers within Applications. You have a demonstrated capacity for depth, are comfortable working with a broad range of technologies, and communicate proactively, efficiently, and inclusively with geographically‑distributed colleagues.
At Kensho, we believe in flexibility‑first and give our employees the opportunity to work from where they feel most productive and engaged (must be in the United States). We also value in‑person collaboration, so there may be times when travel to one of our Kensho hubs (e.g., Cambridge, MA or NYC) will be required for team meetings or company events.
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. Compensation decisions are dependent on the facts and circumstances of each case.
What You’ll Do
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
What You’ll Need
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
Technologies & Tools We Use
Development: Python, Flask, FastAPI, Django REST Framework, PostgreSQL, Celery, RabbitMQ, Redis, Kafka, Jsonnet, Agentic Coding Tools (Claude Code, Codex, Cline)
Operations: AWS, Amazon EKS, Sentry, Prometheus, Git, Jenkins, GitHub Actions
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
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
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.
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  • New York, New York, United States

Languages

  • English
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