Collectors

Collectors

Senior Software Engineer, Back-End (Payments)

US - Remote · Senior · Full-time

Sponsorship not specified$141k-$229kDetected 27 days ago
TypeScriptC#ReactSvelte.NETFull-Stack DevelopmentNoSQLPostgreSQLDynamoDBAWSKubernetesDatadogKafkaComplianceAgileLeadershipCollaboration

About the role

  • This is a high-impact, high-visibility role.
  • You will have direct influence over architecture decisions, gateway integrations, and the quality bar for everything that ships.
  • We believe there is significant value in onsite partnership and team collaboration, and candidates within 1-hour commuting distance of the office may be expected to work onsite most of the time.

Responsibilities

  • Build and evolve multi-gateway payment integrations: Design, implement, and maintain integrations with multiple payment gateway providers - including Stripe, PayPal, and others - building clean abstractions that minimize disruption when adding or swapping gateways, while owning payment flows end-to-end from initiation through settlement, refund, and reconciliation.
  • Deliver full-stack payment experiences: Develop backend payment services and APIs in C#/.NET while building intuitive customer-facing experiences in React, Svelte, and TypeScript that power checkout and payment management, collaborating closely with design and product to ensure every flow is accessible and conversion-optimized.
  • Champion security, compliance, and resilience: Apply PCI-DSS best practices and resilient design patterns - including tokenization, idempotency, retries, and audit controls - to ensure secure and reliable payment processing at scale, partnering with Security and Compliance teams to maintain and advance our certifications.
  • Take an AI-first approach to building: Leverage AI-assisted development tools throughout the software lifecycle to accelerate delivery, improve quality, and evolve engineering best practices.
  • Architect for scale and observability: Design and operate distributed, event-driven services on AWS and Kubernetes, using metrics, tracing, and alerting to maintain highly availability and accelerate incident response.
  • Drive cross-functional execution: Translate business requirements into technical solutions and partner across Payments, Marketplace, Grading, Vault, and platform teams to deliver seamless payment experiences that connect the Collectors ecosystem.
  • Frontend range in React, Svelte, and TypeScript. You build clean, responsive payment UIs and understand the nuances of state management, form handling, and secure client-side data flows.
  • Distributed-systems depth. You've designed and operated microservices and Kafka-based event-driven architectures, run workloads on Kubernetes, and know your way around the AWS ecosystem.
  • 401(K) Matching Plan: We are proud to offer a competitive 401k matching plan to our employees to support their future financial goals
  • Collectors uses e-Verify to validate your ability to work legally in the United States.

Requirements

  • You have a clear, practiced point of view on how AI raises the quality bar and accelerates delivery.
  • You have an extreme ownership mindset and will wear any hat required to get the job done.

Nice to have

  • 6+ years engineering experience.
  • You have a track record of designing, shipping, and scaling products that have measurable business impact.
  • Ideally 2+ years operating as a Senior IC or equivalent technical leadership level at a high-growth company or a scaled consumer platform.
  • Deep backend expertise in C# (.NET).
  • You're comfortable owning complex API surfaces, async patterns, and data consistency in distributed systems.
  • Frontend range in React, Svelte, and TypeScript.
  • Strong fundamentals working with databases and data modeling, both relational (e.g. PostgreSQL) and NoSQL (e.g. DynamoDB).
  • You're comfortable designing schemas, writing efficient queries, and choosing the right storage layer for the problem.

Skills

  • Additional details will be discussed during the recruiting process.

Compensation

  • The salary range for this position is $140,971-$228,870 Actual compensation on this range varies based on a variety of non-discriminatory factors, including location, job level, experience, and skill set.
  • This role may be eligible for bonuses, commissions, or other forms of compensation, please ask your recruiter for details.
  • Holiday Pay: All regular, full-time employees are eligible for ten company paid holidays

Benefits

  • Full-time employees are eligible for fertility, commuter, and educational assistance benefits
  • Vacation: All salaried employees are eligible for flexible time-off
  • Holiday Pay: All regular, full-time employees are eligible for ten company paid holidays
  • Flexible Hours: Many of our teams offer flexible schedules with varying shifts and will work with you to accommodate your needs
  • Fun Working Environment: Our team members are invited to participate in celebrations, holiday events, and team building activities

Company info

  • All regular, full-time employees are eligible for ten company paid holidays
  • We are aware that there are instances where individuals are receiving job offers that fraudulently allege to be from Collectors or one of our business units.

Visa & Work Authorization

  • r, ethnicity, ancestry, religion, national origin, gender, sex, gender identity or expression, sexual orientation, age, citizenship, marital or parental status, disability, veteran status, or other class protected by app
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This listing is sourced directly from Collectors's careers page and normalized into a canonical job model.