Drive measurable growth with Kard’s commerce media network powered by predictive AI and first-party data to deliver personalized rewards that convert. Backed by Techstars.
About the role
The Customer Experience (CX) team owns the systems that power Kard's end-to-end rewards experience: transaction matching and the cellar pipeline, offer ingestion and delivery (including partner integrations like Rewards Network and SEATED), the cell-based routing architecture, and the Support API that keeps our internal and partner-facing tooling running.
What they're looking for
- Expert programming skills in Go and/or TypeScript, with experience building scalable, secure, high-performance backend services
- Solid experience with distributed systems, event-driven architectures (SQS, Temporal), and both relational and document databases (Postgres and MongoDB)
- Proficiency with AWS and Infrastructure-as-Code (Terraform), including container technologies (Kubernetes/EKS) and serverless components (Lambda)
- Experience working on transaction-processing, matching, or ingestion pipelines where correctness and idempotency matter
- Comfort leading a technical project from discovery through production rollout, including writing clear specs and driving cross-team collaboration (e.g., with Support, Data, or partner integration teams)
- Skilled with agentic software development — using AI tools (e.g., Claude Code, Codex) to plan and implement complex features, not just autocomplete — while still owning the design and quality of the result
More about this role
Kard is building commerce media infrastructure that connects financial institutions, financial-services platforms, and merchants through data and merchant-funded rewards. As our reach expands, we are building for a step-change in scale, and for opportunities ranging from more relevant rewards and marketer intelligence to new commerce and distribution models.
The Customer Experience (CX) team owns the systems that power Kard's end-to-end rewards experience: transaction matching and the cellar pipeline, offer ingestion and delivery (including partner integrations like Rewards Network and SEATED), the cell-based routing architecture, and the Support API that keeps our internal and partner-facing tooling running. As a Senior Software Engineer II, you'll operate at the center of this — designing and building the services that ingest, match, and settle transactions at scale, while helping the team raise its bar on operational readiness, testing, and documentation.
This role reports into the CX engineering team, with a strong focus on our issuer and partner-facing surface area, working alongside Support, Design, and Product through Kard's Shape Up-based pitch cycle. You'll drive pitches...
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