C

Senior Backend Engineer (Python) - Product Discovery Services

Full Remote
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Lead end-to-end design and delivery of high-traffic, low-latency Python services for product discovery APIs. Focus on performance, reliability, and public API evolution while mentoring engineers and collaborating cross-functionally. Requires hands-on production experience, observability expertise, and ownership mindset.

Key Highlights
Own end-to-end design and delivery of high-traffic Python services for product discovery APIs.
Focus on performance, reliability, and public API evolution with backward compatibility.
Mentor engineers, collaborate cross-functionally, and lead incident response on-call.
Key Responsibilities
Design and deliver features/components for product discovery services.
Evolve public APIs with backward compatibility and drive architecture discussions.
Improve performance/reliability via latency/failure analysis, observability, and debugging.
Participate in design/code reviews and mentor mid-level engineers.
Collaborate with product, support, and engineering teams to translate customer needs into technical solutions.
Take on-call for owned systems and lead incident response.
Technical Skills Required
Python Distributed Systems API Design & Evolution
Benefits & Perks
Unlimited vacation time (minimum 3 weeks/year)
Fully remote work with global flexibility
Home office stipend and Apple laptops
Training/development budget
Maternity/Paternity leave
Stock options
Regular team offsites
Nice to Have
Experience with AWS
Background in search, ranking, information retrieval, or e-commerce product discovery
Exposure to AI/LLM-facing infrastructure (e.g., MCP, agent tooling)

Job Description

About us

Constructor is an AI-first e-commerce search and discovery platform launched in 2019, helping shoppers and brands drive revenue through product discovery.

About the team

The SABR team owns the top layer of request processing for product discovery, including parsing user requests, orchestrating internal services, and assembling final responses. Services are public APIs with strict backward compatibility, high availability (15k RPS), and graceful failure handling. Engineers own end-to-end problems from design to on-call.

About you

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