Backend Engineer - Node.js / TypeScript

Location: Remote| Full-Time

Underdog.io is a modern recruitment platform. Our hiring partner is pioneering a platform backed by $14M from top-tier investors, enabling enterprises to deploy authenticated AI agents for mission-critical workflows.

Our technology solves a fundamental challenge: securely accessing and transforming data trapped behind complex authentication barriers. We’ve automated weeks-long manual processes into minutes for industry leaders. Join our growing team to build the infrastructure that makes every business system AI-accessible.

Your Mission

Architect core systems that allow AI agents to securely navigate authenticated environments—from dynamic web interfaces to legacy systems—transforming unstructured data into actionable intelligence at scale.

Key Responsibilities

• Build Resilient AI Agents: Develop systems that automate complex logins (including MFA), extract unstructured data, and handle dynamic web interfaces without APIs.
• Engineer Secure Foundations: Create authentication workflows for diverse platforms and scalable APIs for enterprise-grade solutions.
• Design Data Infrastructure: Implement GCP-based data pipelines, optimize PostgreSQL performance, and ensure integrity for millions of records.
• Ship End-to-End Systems: Develop third-party integrations, testing suites, and observability tools with a focus on reliability.
• Collaborate Strategically: Work with senior engineers on system architecture and product teams to solve real customer challenges.

Tech Stack Deep Dive

• Core: TypeScript, Node.js, PostgreSQL
• Infra: GCP, Docker, GitHub Actions (CI/CD)
• Automation: Custom web agents, Puppeteer/Playwright (experience a plus)

Who You Are

• 3+ years backend engineering experience shipping production systems.

Technical Mastery:

• Proficient in modern backends (Node.js/TypeScript preferred)
• Experience with REST APIs, cloud platforms (GCP/AWS/Azure), and databases
• Familiarity with containerization (Docker) and CI/CD pipelines

Cultural Fit:

• Autonomy: Own outcomes end-to-end in ambiguous environments
• Craftsmanship: Balance best practices with pragmatic delivery
• Curiosity: Continuously explore authentication, security, and AI/automation
• Communication: Document decisions and align cross-functional teams

Nice-to-Haves

• Data engineering/ETL pipeline experience
• Knowledge of OAuth, SAML, or security protocols
• Startup experience or open-source contributions
• Monitoring tools (Prometheus, Grafana, etc.)

Why Join

• Impact Critical Infrastructure: Your code enables AI to access 90% of enterprise data currently locked behind logins.
• Founder-Level Equity: Significant ownership in a well-funded startup.
• Elite Team: Learn from former founders and early engineers who scaled 0→1 products.

For Builders of the AI-Authenticated Future

If you’re driven to solve foundational challenges at the intersection of security, AI, and enterprise systems—apply now. Let’s make every business system AI-accessible.

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