Yellow Card App

Senior Back-End Engineer

Yellow Card App

full-time

Posted on:

Location Type: Remote

Location: United States

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Job Level

Senior

Tech Stack

AWSAzureCloudDistributed SystemsDynamoDBJavaScriptKubernetesMicroservicesNode.jsTypeScript

About the role

  • Design, build, and maintain scalable backend services powering mission-critical financial workflows.
  • Own features end-to-end: from design and implementation to monitoring and iteration.
  • Build and evolve event-driven, serverless & Kubernetes microservices.
  • Collaborate with cross-functional teams to deliver reliable solutions.
  • Write clean, testable, and maintainable code with the future in mind.
  • Participate actively in architecture discussions, code reviews, and design reviews.
  • Ensure systems are observable, resilient, and production-ready.
  • Uphold and improve engineering standards, patterns, and best practices.

Requirements

  • 6+ years of professional experience as a Back-End Engineer (Senior-level / Tech Lead depth expected)
  • Strong hands-on experience with Domain Driven Development.
  • Strong experience with Node.js and modern JavaScript/TypeScript.
  • Solid hands-on experience with AWS (or equivalent cloud platforms - Google Cloud/Azure).
  • Proven experience building serverless & Kubernetes architectures (Lambda, API Gateway, SQS/SNS, DynamoDB, etc.)
  • Experience designing and operating event-driven microservices.
  • Strong understanding of RESTful APIs, async workflows, and distributed systems.
  • Experience with testing strategies (unit, integration, contract tests).
  • Highly experienced in designing monitoring & observability systems.
  • Nice to Have Exposure to fintech, payments, and high-regulation systems.
  • Basic understanding of blockchain or crypto transaction flows.
  • Experience improving system observability, logging, and monitoring.
Benefits
  • Work on real infrastructure problems with real impact.
  • Strong engineering culture focused on ownership and quality.
  • Opportunity to influence architecture, standards, and long-term platform direction.
  • Impactful and Purposeful Work: You will be helping to drive financial inclusion across Africa.
  • Remote-First Flexibility: We embrace a fully remote work environment.
  • Global & Diverse Team: You will have the opportunity to work with talented professionals from 25+ countries across the world, in a multicultural and collaborative environment.
  • Learning & Development: Access to resources, support, and autonomy to grow professionally.
  • Mental Health Support Services: Your mental well-being matters to us.
  • Competitive compensation and meaningful health coverage, and all full-time employees are participants in our stock option plan.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Node.jsJavaScriptTypeScriptDomain Driven DevelopmentAWSKubernetesserverless architectureRESTful APIsevent-driven microservicestesting strategies
Soft Skills
collaborationclean codecode reviewsdesign reviewsengineering standardsproblem-solvingcommunicationresilienceiterationobservability