About the 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.
Responsibilities
- Architect and build scalable services across transaction matching, the cellar pipeline, and offer ingestion - new work defaults to Go and Postgres; existing services are a mix of TypeScript and MongoDB.
- Own features end-to-end through Kard's Shape Up cycle: discovery, pitch writing, implementation, testing, and production rollout, including a written launch/rollback plan for anything touching transaction or offer data.
- Actively participate in on-call, incident response, and IOC (interrupt/on-call) triage; drive root-cause fixes rather than one-off patches (e.g., ingestion validation gaps, UID/timestamp mismatches, Datadog alert coverage).
- Strengthen our issuer/client-facing APIs and SDKs - reliability, clarity, and self-service - so partners and Support can resolve more issues independently, reducing engineering escalations.
- Lead by example: make decisive technical calls and foster collaboration across Product, Design, and Engineering to keep the team moving toward CX's strategic goals.
- Champion enhancements to our tech stack, methodologies, and standards - authentication, rate limiting, deployment, observability, error handling, and test coverage (unit, integration, end-to-end) - with an eye toward resilience, agility, and quality, not just shipping speed.
- Mentor engineers, contribute to design and architecture discussions, and help the team consolidate or deprecate legacy/overlapping services rather than letting them accumulate.
- Write clear documentation and playbooks (local dev setup, deployment, troubleshooting) so ownership doesn't stay concentrated with one or two people.
Desired Skills
- 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.
- Commitment to fostering an inclusive, collaborative engineering culture.
- U.S. core business hours availability and willingness to travel for company meetings.
Bonus Points
- Experience with card-linked offers, loyalty, fintech, or another transaction-intensive marketplace.
- Experience with partner data ingestion (file-based or API) and the validation/monitoring needed to run it reliably in production.
- Familiarity with Cognito-based auth, API gateway enforcement (e.g., Envoy), or claims-based authorization.
- Experience with Databricks or a similar data platform, and with migrating services from a legacy stack (e.g., Databricks to Postgres/Lakebase) without disrupting production.
- Contributions to the tech community or open-source projects.
- Past success in startup settings, and a track record of empathy, collaboration, and productivity in remote work.
Compensation
- United States: $160,000 - $190,000 USD
- Argentina: $120,000 - $140,000 USD
Why Join:
Kard recognizes the unique value each of us brings to our collective success.
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