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Back Market Logo

Senior Full Stack Engineer (Backend

Back Market

$160,000 - $200,000
Oct 24, 2025
New York, NY, US
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Back Market is looking to enhance user engagement and accelerate the development of innovative features by expanding their engineering team in the US market. The goal is to optimize the overall customer experience across web and app platforms for refurbished devices.

Requirements

  • 5+ years of backend engineering experience with strong proficiency in Go (primary requirement) and proven experience with Python
  • Solid understanding of microservices architecture, with experience building and maintaining high-traffic backend services and regular feature delivery
  • Working knowledge of modern web frontend technologies (Vue.js, React, or similar) with comfort in JavaScript/TypeScript for full-stack contribution
  • Demonstrated ability to deliver high-quality, non-disruptive production releases with strong SDLC knowledge and comprehensive testing experience
  • Experience building observability systems (monitoring, alerting, tracing) and using data to drive improvements, with incident management and on-call experience
  • Strong knowledge of databases (PostgreSQL, Redis) and message queues (Kafka, RabbitMQ), with expertise in API design (REST, GraphQL)
  • Demonstrated pragmatism in technical decision-making, able to challenge approaches diplomatically and question task legitimacy when appropriate

Responsibilities

  • Design and implement robust backend services using Go as the primary language, with Python where appropriate, ensuring scalability, performance, and reliability for high-quality user experiences.
  • Build efficient microservices that power both web and mobile experiences, mastering the squad's technical stack and delivering features autonomously with comprehensive testing methodologies.
  • Contribute to web frontend development using modern frameworks (Vue.js/TypeScript), bridging backend and frontend by designing clear API contracts and delivering complete, end-to-end features.
  • Collaborate with a cross-functional team of peers from various disciplines (iOS, Backend, Frontend, SRE, CyberSec, Data, etc.), to foster a culture of technical excellence and shared knowledge.
  • Take ownership of squad-level technical projects, managing dependencies and delivering solutions that realize engineering and product visions while balancing scope with delivery timelines.
  • Build and maintain observability ecosystems using tools like Datadog to track performance, errors, and core functionality, Big Query to gain data insights, and implement strategies to prevent regressions.
  • Drive quality improvements by mastering the complete SDLC, delivering high-quality, non-disruptive releases to production, and taking ownership of Quality of Service enhancements.

Other

  • This job description is not an exhaustive list of all functions that the employee may be required to perform, and the employee may be required to perform additional functions.
  • Additionally, the job responsibilities may change at any time as necessitated by business demands.
  • Excellent written and verbal communication skills with ability to explain technical concepts clearly to diverse audiences in cross-functional teams
  • Proven ability to work autonomously within squad scope, managing deliverables while contributing to team knowledge through documentation and code reviews
  • We welcome direct conversations with each candidate about compensation in all of our initial calls.