Marathon Talent
Marathon Talent
Marathon Talent is a recruiting and talent strategy firm focused on helping startups and growing companies build bilingual teams in Latin America. Its services span end-to-end recruitment, fractional people and talent strategy, market research, salary studies, and advisory and mentorship support. Drawing on a network of more than 10,000 professionals, the firm works alongside client teams on hiring, compensation, culture, and organizational design, with flexible engagement models including success fees, flat fees, and monthly retainers.

Remote Back-End Developer – TypeScript

Build TypeScript APIs, workers, integrations, and recruiting workflows for Nummo’s software. Help ensure reliable updates across candidates, milestones, tasks, and calendars.

Description

  • Build services that create searches from external jobs, attach candidates, and move them through recruiting stages
  • Develop the agent runtime that interprets recruiter messages, plans changes, and executes writes
  • Maintain the workflow engine that creates milestone-based tasks while preventing duplicate work
  • Create integrations with applicant tracking systems, calendars, documents, and note-taking tools
  • Implement polling and webhook flows to detect newly published jobs
  • Add recruiting workflow steps and verify that chat commands schedule interviews, move candidates, and record milestones
  • Analyze production runs, isolate failure causes, and introduce preventive safeguards
  • Retire obsolete implementations once their replacements are adopted
  • Collaborate through pull requests that clearly explain behavior, risk, and verification
  • Validate recruiting workflows in the live application, including repeated model runs where relevant
  • Work with product users and recruiting firms to follow searches from job publication through signed offer

Requirements

  • Experience building and operating backend systems relied on by other users or services
  • Working knowledge of relational data and transactions
  • Understanding of unique indexes and soft-delete patterns
  • Experience delivering integrations with third-party APIs
  • Knowledge of API rate limits, draft and published states, and delayed visibility after successful writes
  • Ability to trace HTTP requests through workflow history and determine the active step
  • Ability to write maintainable TypeScript
  • Interest in recruiter-facing products and reliable workflow behavior

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