Support Engineer — Fintech API & Production (Remote)

Lithic; New York (NY); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Unlimited PTO

Parental leave (12 weeks)

Sabbatical (4 weeks at 5 years)

Work From Anywhere (4 weeks/year)

Health, vision, dental insurance

401(k) match

Life Insurance + STD/LTD

Job summary

Lithic is a modern card issuing and processing platform powering fintechs and embedded finance across the United States. We are hiring a Support Engineer for our API Support team to own customer issues end-to-end, debug production behavior, and drive problems to resolution with high ownership and clear communication.

In this hands-on role, you will work across card lifecycle, authorization, webhooks, KYC, disputes, and configurable platform layers using internal tools and AI-assisted workflows,

Qualifications

• 3+ years in a technical, execution-heavy role in fintech or B2B SaaS.
• Proficient with REST APIs, webhooks, JSON payloads and OpenAPI specs.
• Strong production debugging abilities across complex, configurable systems.
• Experience with Snowflake/dbt, Grafana/Loki, and internal tooling is a plus.
• Clear, direct written communication with internal teams and customers.
• Ability to own problems end-to-end in a remote, fast-paced environment.

Responsibilities

• Own support tickets from first response through confirmed resolution.
• Debug by tracing system state, API logs, authorizer decisions, and data flow.
• Investigate issues across card issuance, authorization, transactions, settlements, and webhooks.
• Use internal tooling (Snowflake, dbt, Grafana, Retool, Metabase) to investigate and resolve issues.
• Maintain high operational rigor with triage, SLA adherence and customer communications.
• Contribute to The Vault knowledge base with clear articles.

Skills

Debugging instincts

REST APIs

SQL

OpenAPI

Ticketing systems

Clear communication

Ownership

Remote work

Production debugging

Tools

Snowflake

dbt

Grafana

Loki

Retool

Metabase

The Vault

Job description

Lithic is a modern card issuing and processing platform powering fintechs and embedded finance across the United States. We are hiring a Support Engineer for our API Support team to own customer issues end-to-end, debug production behavior, and drive problems to resolution with high ownership and clear communication.

In this hands-on role, you will work across card lifecycle, authorization, webhooks, KYC, disputes, and configurable platform layers using internal tools and AI-assisted workflows,