Software Engineer, Marketplace

Mercor Alabaster

$130K — $180K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in backend system development and operations
  • Proven expertise in designing high-performance and reliable systems
  • Familiarity with high-throughput APIs and distributed architectures
  • Strong skills in data modeling and system design
  • Ability to create scalable solutions from product requirements

Responsibilities

  • Develop backend services for candidate-job matching and routing
  • Build APIs that support search and fulfillment processes
  • Create data models for a dynamic labor marketplace
  • Design infrastructure for real-time decision-making
  • Maintain operational systems for robust workflow management

Benefits

  • Bi-annual performance bonus
  • Generous equity grant over 4 years
  • Up to $15k relocation assistance
  • $10K housing bonus for local residents
  • $1.5K monthly meal stipend
  • Free Equinox gym membership
  • $200 monthly laundry reimbursement
  • $200 monthly personal wellness allowance
  • Comprehensive health, dental, and vision insurance
Full Job Description
About the Role

As a Software Engineer on the Marketplace team, you will own the core systems that bring human intelligence to AI opportunities You'll work on search, matching, allocation, and workflow infrastructure at the heart of the marketplace, where systems deliver the world's top experts to staff our cutting edge projects.

The problems are technically demanding and tightly coupled to business outcomes: latency, reliability, throughput, and system quality all directly affect marketplace performance.

What You'll Build
  • Backend services that power candidate-job matching, routing, and marketplace workflows
  • APIs and internal systems for search, eligibility, scoring, allocation, and fulfillment
  • Data models and system abstractions for a rapidly evolving labor marketplace
  • Infrastructure for real-time and asynchronous decisioning at high volume
  • Operational systems and tooling that keep product-critical workflows reliable, observable, and easy to evolve


Example Problems
  • Build the systems that determine which candidates are eligible for which opportunities
  • Design matching and allocation infrastructure that balance speed, quality, and fill rate
  • Improve the performance and reliability of APIs serving marketplace decisions in real time
  • Develop workflow engines for onboarding, vetting, routing, and placement
  • Design backend abstractions that let product and ML teams iterate quickly without degrading system quality


What We're Looking For
  • Track record of building and operating reliable backend systems in production
  • Strong judgment in system design, performance, reliability, and data modeling
  • Comfort working on high-throughput APIs, distributed systems, and asynchronous workflows
  • Ability to translate product and marketplace requirements into clean technical systems
  • High engineering standards and a bias toward simple, durable abstractions


Nice to Have
  • Experience with search, recommendation, matching, scheduling, or marketplace systems
  • Experience supporting ML-powered products or integrating model inference into production systems
  • Familiarity with event-driven architecture, queues, caching, and observability tooling


Why This Role

This role sits on a core decision layer of the product. Your work will directly shape how the marketplace operates: which opportunities get filled, how quickly hiring happens, and how reliably the system scales as volume and complexity increase.

Tech Stack

Python, Go, Kafka, Postgres, Redis, Elasticsearch, Kubernetes, Terraform

Benefits
  • Bi-annual performance bonus structure
  • Generous equity grant vested over 4 years
  • Up to $15k Relocation bonus
  • $10K housing bonus (if you live within 0.5 miles of our office)
  • $1.5K monthly stipend for meals
  • Free Equinox membership
  • $200 monthly laundry reimbursement
  • $200 monthly personal wellness reimbursement
  • Health, Dental, Vision insurance

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