Senior Product Engineer

Semaphore Corporation

. Take product ideas from problem definition through design, implementation, rollout, and iteration .

Posted 10/5/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong product judgment and engineering judgment, with the ability to independently ship meaningful software products while ensuring reliability, observability, and compliance. Proficient in backend services, APIs, and modern AI-assisted development practices.

Highest-signal resume keywords

Backend And Systems FundamentalsAPIs And Asynchronous ProcessingInfrastructure ConceptsModern AI-Assisted DevelopmentStrong Product Judgment

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentAPI DevelopmentAsynchronous ProcessingService BoundariesState ManagementLifecycle ManagementIdempotencyFailure RecoveryFrontend DevelopmentDistributed Systems

Soft Skills

Strong Written CommunicationStrong Spoken CommunicationInitiativePersistenceRisk Management

Tools & Technologies

GoElixirRubyReactCI/CD SystemsCloud PlatformsVirtual MachinesContainersDeveloper ToolsEvent-Driven Architectures

Industry Keywords

Product DiscoveryLean EnvironmentRemote WorkAsynchronous TeamProduct Quality

Tech Stack

Tools & technologies

CloudDistributed SystemsElixirReactRubyGo

About the role

Key responsibilities & impact

Take product ideas from problem definition through design, implementation, rollout, and iteration
Develop experiments that may grow into standalone products
Work directly with users and internal stakeholders to identify problems and determine what to build
Make pragmatic scope and architecture decisions
Build backend services, APIs, infrastructure-facing components, and focused frontend experiences
Reuse proven Semaphore systems before introducing new infrastructure
Use AI coding agents to explore, build, test, and ship efficiently
Maintain correctness, security, clarity, reliability, and product quality
Own production outcomes, including reliability, observability, supportability, and compliance requirements
Communicate decisions, progress, and risks clearly
Work closely with engineering, product, infrastructure, and company leadership
Drive ambiguous products or features to strong outcomes

Requirements

What you’ll need

Track record of independently shipping meaningful software products or major product capabilities
Strong product judgment and ability to identify essential user problems, reduce scope, and assess product readiness
Strong engineering judgment across system design, implementation, reliability, and long-term maintainability
Strong backend and systems fundamentals, including APIs, asynchronous processing, service boundaries, state and lifecycle management, retries, idempotency, and failure recovery
Comfort with infrastructure concepts including virtual machines, storage, networking, authentication, secrets, containers, and cloud platforms
Ability to navigate a polyglot environment including Go, Elixir, Ruby, React, and related technologies; expertise in every language is not required
Frontend capability to build or extend focused product user experiences independently
Fluency with modern AI-assisted development, including decomposing work for agents, supplying context, reviewing generated changes, and building verification workflows
Initiative and persistence with incomplete information; ability to surface risks early and involve others when useful
Strong written and spoken English
Experience working independently in a remote, asynchronous team
Experience with developer tools, CI/CD systems, cloud platforms, or infrastructure products is nice to have
Hands-on experience with distributed systems and event-driven architectures is nice to have
Experience evolving mature codebases while introducing new products or architectures is nice to have
Experience in a lean environment where senior engineers participate in product discovery and customer conversations is nice to have

Benefits

Comp & perks

Remote-first work arrangement
Work in a remote, asynchronous team
Broad ownership over product and implementation
Opportunity to work directly with users and internal stakeholders
Opportunity to use AI coding agents in daily engineering workflow
Opportunity to work across product, engineering, infrastructure, and user experience
Opportunity to shape new products and capabilities