Loading ...
About us
Launched in 2019, Constructor is an AI-first e-commerce search and discovery platform that helps shoppers find the right products at the right time and enables leading global e-commerce brands to drive meaningful revenue and conversion gains.
About the team
The SABR team owns the top layer of request processing for product discovery. We own the service that first receives product discovery requests (autocomplete, search, browse & recommendations) & executes the entire business logic that drives product discovery. That service also functions as a gateway to parse incoming user requests, orchestrate calls across the internal services that do the ranking and retrieval, interpret their responses, and assemble the final response the customer sees. We also own the public configuration APIs customers use to control how discovery behaves, and the MCP layer that exposes all of it to AI agents.
About you
You're a staff-level engineer who wants to own systems, not tickets. You've built high-traffic, low-latency Python services and carried the pager for them. You think in trade-offs: latency versus cost, flexibility versus a public API that customers can't afford to see break, the fix that ships this week versus the architecture that has to last two years. You can lead work that spans several engineers and several quarters, you enjoy mentoring others, and you're fine when a problem shows up half-defined. You don't mind being the one who reads the spec for some unfamiliar protocol, works out how it fits, and designs an integration that holds up at scale. You change your mind when someone has a better argument, you make the people around you better, and you still care about your code long after it merges.
What you will do
Own the technical direction of one or more of our services - architecture, performance, and reliability.
Lead design of new systems and public APIs, and the evolution of existing ones as traffic and feature scope grow.
Raise the engineering bar through design and code review, and mentor mid and senior engineers into owning bigger scopes.
Partner with product, other engineering teams, and solutions/support to shape what we build and to represent search constraints and trade-offs honestly.
Take part in on-call for the systems you own, and lead incident response and follow-through when things break.
What we are looking for
Substantial experience building and operating high-traffic, low-latency backend services in production.
Extensive Python knowledge (our primary language).
Experience with observability and performance work in live systems.
Experience designing and evolving public APIs that external customers depend on.
Experience designing & implementing scalable service-oriented architectures.
Track record of leading projects that span multiple engineers and quarters.
Influence without authority, and willingness to change your position when someone has a better argument.
Clear written communication - design docs, RFCs, postmortems.
Good judgment about trade-offs and scope.
Comfort with ambiguity and loosely defined problems.
Ownership that extends past merge, to how the system behaves in production.
Nice to have
Experience with AWS
Background in search, ranking, information retrieval, or e-commerce product discovery.
Exposure to AI/LLM-facing infrastructure (MCP, agent tooling, or similar).
Benefits
🏝️ Unlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year
🌎 Fully remote team - choose where you live
🛋️ Work from home stipend! We want you to have the resources you need to set up your home office
💻 Apple laptops provided for new employees
🧑🎓 Training and development budget for every employee, refreshed each year
👪 Maternity & Paternity leave for qualified employees
🧠 Work with smart people who will help you grow and make a meaningful impact
💵 Base salary: $110k–$130k USD, depending on knowledge, skills, experience, and interview results
📈 Stock options - offered in addition to the base salary
🎉 Regular team offsites to connect and collaborate
Published on: 10/9/2026
Constructor
Constructor is the next-generation platform for search and discovery in ecommerce, built on a unique GPT-based architecture made specifically for commerce.
Please let Constructor know you found this job on Wantapply.com. It helps us to get more jobs on our site. Thanks!