Senior Software Engineer Backend (Blockchain)

Senior Software Engineer Backend

Company

Cari Network

Conditions

3 days agoSenior Remote (U.S.) Remote Full Time Backend Jobs by Cari Network

Skills

Alerting Api Backend Blockchain Concurrency Control Effect Idempotency Incident Response Kafka Postgresql Reconciliation Rfc Root-Cause Analysis Slo Temporal Terraform Transaction Ordering Transaction Processing Typescript Workflow Orchestration

Candidate Availability

United States · Required Remote · Required Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You own transaction processing infrastructure for signing and settlement flows, including service design, correctness guarantees, transaction ordering, and concurrency control. You design data models and APIs, define production-readiness standards, lead incident response and root-cause analysis, write RFCs, and coordinate with banking and blockchain engineers.

Requirements

• 5–7 years of backend software engineering experience
• Experience with systems requiring strict correctness or ordering guarantees
• Strong proficiency in TypeScript
• Experience with Effect or a comparable functional effect system preferred
• Experience with durable workflow or orchestration systems
• Understanding of partitioned or keyed execution, idempotency, at-least-once delivery, and reconciliation
• Production experience with PostgreSQL and Kafka or equivalent message infrastructure
• Ability to own a service independently
• Strong written communication
• Experience in fintech, payments, or regulated financial infrastructure preferred
• Experience with blockchain or custody-adjacent systems preferred
• Familiarity with Terraform or infrastructure-as-code preferred
• Experience mentoring engineers or driving cross-team technical alignment preferred

Responsibilities

• Own transaction processing infrastructure for signing and settlement flows
• Own transaction-ordering and concurrency-control logic
• Design data models, API contracts, and retry or backoff logic
• Write RFCs for service integrations
• Define production-readiness standards, SLOs, alerting thresholds, and runbooks
• Lead incident response and root-cause analysis
• Drive postmortems that prevent recurrence
• Assess consistency models, failure modes, and system capacity
• Coordinate with banking and blockchain engineers

Benefits

• Equity
• Full medical benefits
• Vision benefits
• Dental benefits
• 401(k) with matching program
• Flexible vacation policy (PTO)
• Remote-first work environment

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