Senior Software Engineer II, Customer Experience

Kard
United States
Workplace: RemoteFull timeUSD 160,000 - 190,000 annuallyFunction: Customer Success & Account ManagementSkills: ["Collaboration","Mentoring","Documentation","Cross-team communication","Incident response"]

Design and build scalable backend services for Kard’s end-to-end rewards experience, including transaction matching, the cellar pipeline, and offer ingestion. Own features end-to-end through the Shape Up cycle, participate in on-call and incident response, and improve reliability for issuer/client-facing APIs and SDKs. Lead technical decisions, advance Go/TypeScript and infrastructure standards (testing, observability, auth, rate limiting), mentor engineers, and write documentation and playbooks.

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FursaFursa
Kard
Kard
1 day ago

Senior Software Engineer II, Customer Experience

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Source: Company careers pageValidated by: Fursa AI
Last checked: 6 hours agoStatus: Live

Job Summary

Design and build scalable backend services for Kard’s end-to-end rewards experience, including transaction matching, the cellar pipeline, and offer ingestion. Own features end-to-end through the Shape Up cycle, participate in on-call and incident response, and improve reliability for issuer/client-facing APIs and SDKs. Lead technical decisions, advance Go/TypeScript and infrastructure standards (testing, observability, auth, rate limiting), mentor engineers, and write documentation and playbooks.
Location: United States
Workplace: Remote
Employment Type: Full time
Job Function: Customer Success & Account Management
Seniority: Mid level

Key Responsibilities

  • •Architect and build scalable services across transaction matching, the cellar pipeline, and offer ingestion, including new work in Go and Postgres.
  • •Own features end-to-end through the Shape Up cycle (discovery, pitch, implementation, testing, and production rollout) with written launch/rollback plans.
  • •Participate in on-call, incident response, and IOC triage; drive root-cause fixes for issues affecting ingestion and data correctness.
  • •Strengthen issuer/client-facing APIs and SDKs for reliability, clarity, and self-service to reduce escalations.
  • •Champion tech stack and engineering standards across authentication, rate limiting, deployment, observability, error handling, and test coverage; mentor engineers and maintain documentation/playbooks.
Travel: Medium travel

Pay and Benefits

Salary: USD 160,000 - 190,000 annually
Perks:Health InsuranceDentalVision401kRemote WorkPaid LeaveLearning Budget

Key Requirements

  • •Expert programming skills in Go and/or TypeScript building scalable, secure, high-performance backend services.
  • •Experience with distributed systems, event-driven architectures, and relational/document databases (Postgres and MongoDB).
  • •Proficiency with AWS and Infrastructure-as-Code (Terraform), including Kubernetes/EKS and Lambda.
  • •Experience working on transaction-processing, matching, or ingestion pipelines requiring correctness and idempotency.
  • •Comfort leading technical work from discovery through production rollout, including writing specs and driving cross-team collaboration.
Skills:CollaborationMentoringDocumentationCross-team communicationIncident response
Languages:English
Tech Stack:GoTypeScriptPostgresMongoDBAWSTerraformKubernetesEKSLambdaSQSTemporalDatadogClaude CodeCodexCognitoEnvoySQL

Company Brief

Kard
Kard is a digital banking app that provides prepaid cards and money management tools aimed at teenagers and families, enabling safe payments, parental controls, and financial education for young users.
Industry: Neobanking
Company Size: Small (11 to 50 employees)
Headquarters: Paris, France
Website