Software Engineer

The Job Sauce

. Build and own products and systems end to end, from ambiguous customer problems through architecture, implementation, and launch .

Posted 9/29/2026full-timeRemote • United StatesMid-LevelSenior💰 $300,000 - $500,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates full-stack engineering expertise with strong backend fundamentals in Python, Postgres, and AWS, alongside frontend experience in React, React Native, and TypeScript. Capable of building reliable systems, owning product features from design to production, and leveraging AI for innovative solutions.

Highest-signal resume keywords

Full-Stack EngineeringBackend Development in PythonFrontend Development with ReactAI-Native Workflow ImplementationProduct Ownership and Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonPostgresAWSReactReact NativeTypeScriptReal-Time Bidding SystemsAPIs DevelopmentAutomation ToolsData Consistency Design

Soft Skills

CollaborationCommunicationDocumentationProblem-SolvingTrade-Off Decision Making

Tools & Technologies

Claude CodeCursorMCP ServersMonitoring AgentsPerformance Instrumentation

Industry Keywords

High-Concurrency BiddingPayment IntegrationsInventory ManagementProduct AnalyticsCollectibles Marketplaces

Tech Stack

Tools & technologies

AWSPostgresPythonReactReact NativeTypeScript

About the role

Key responsibilities & impact

Build and own products and systems end to end, from ambiguous customer problems through architecture, implementation, and launch
Own backend logic and customer-facing experiences across seller tools, discovery, account activity, and submission flows
Build reliable, performant systems for real-time bidding, money movement, inventory workflows, and partner integrations
Design for concurrency, data consistency, and production failure paths
Work with product, design, and business partners to identify problems, make trade-offs, and measure results
Build tools, APIs, and automation for collectors, sellers, partners, and internal teams
Own testing, instrumentation, and performance; use production feedback to improve the product
Conduct code reviews, write technical documentation, and share knowledge
Build AI-powered features such as instant valuations, personalized discovery, listing enrichment, and automated quality checks
Build agents to monitor systems, triage exceptions, and surface actionable findings
Use models to build simulators and generate adversarial test cases
Put MCP servers over product data and event history for plain-language investigation
Use Claude Code or Cursor to build, refactor, migrate, and test

Requirements

What you’ll need

Full-stack engineering ability with strong backend fundamentals in Python, Postgres, and AWS or comparable infrastructure
Frontend experience with React, React Native, and TypeScript
Experience building and scaling applications
Experience turning ideas into working products or owning technically challenging problems with meaningful constraints
Track record of owning features or systems from design through production
Product sense and understanding of customer problems and business outcomes
AI-native workflow with concrete examples of using AI to prototype, build, and iterate
Ability to make pragmatic trade-offs and move work forward
Strong documentation, collaboration, and communication skills
Bonus: experience with high-concurrency bidding, real-time interfaces, personalization, or recommendation systems
Bonus: experience with payment integrations, double-entry ledgers, reconciliation, or lending systems
Bonus: experience with logistics, inventory or asset management, imaging workflows, or enterprise APIs
Bonus: experience with experimentation, product analytics, attribution, or lifecycle infrastructure
Bonus: startup experience building products or systems from the ground up
Bonus: familiarity with collectibles or alternative asset marketplaces

Benefits

Comp & perks

85% medical, dental, and vision coverage; up to 50% for dependents
HSA/FSA available
Generous PTO
Parental leave at full salary
$200/month wellness stipend
$100/month home office stipend
Free DoorDash Pass membership
Remote-first work with WeWork access
401(k)
Alt Equity for all full-time employees