Support Engineer

Lithic is the modern card issuing and processing platform empowering ambitious financial companies to build the future of payments. Our infrastructure powers card programs for 100+ innovative clients, from fintechs reimagining credit and digital banking to platforms transforming disbursements and spend management. Companies like Mercury, Flex, and Novo rely on Lithic's developer-friendly APIs, direct network connections, and flawless reconciliation to launch and scale card programs in weeks, not years. We're building a future where access to better financial products materially improves people's lives, free from the constraints of 30-year-old mainframes and legacy processors. We're proud to be backed by world-class investors who share that vision, including Bessemer Venture Partners, Index Ventures, Spark Capital, Stripes, and Mastercard, along with many others. We're a team of 170+ across 26 states and 7 countries, headquartered in New York City. We are hiring a Support Engineer to join our API Support team. This is a hands-on, high-autonomy role. You'll own customer issues end-to-end: triaging incoming tickets, debugging production behavior across our authorizer and API surface, reasoning through configuration and data flow, and driving problems to resolution, often without needing to hand anything off. You'll work across card lifecycle, authorization decisioning, webhooks, account holder KYC, disputes, and the other configurable layers of our platform, using internal tools, Snowflake, Grafana/Loki, and AI-assisted workflows to move fast. When issues reveal deeper product gaps, you'll partner with Engineering and Product to surface patterns and get problems resolved upstream. You will also partner with Solutions and Product Delivery to ensure that we deliver clear, timely, and charming customer communications. Your judgment directly shapes customer trust, product reliability, and our ability to scale the Support function without scaling headcount linearly with ticket volume. Lithic is the card-issuing and payments platform powering some of the most ambitious fintechs and embedded-finance programs in the market. Our customers build on our APIs to issue cards, move money, and run card programs at scale, which means the questions that reach us are rarely "where's the button?" They're "why did this authorization decline at 3:42am ET?", "why is this webhook firing twice?", "is this dispute eligible under Reg E?", "what's the latency on our tokenization endpoint right now?" Customers don't remember when things work. They remember when things break, how fast we fix them, and whether we took the time to set things right. As a Support Engineer at Lithic, you're the person who makes that moment go well. What You'll Do: Own support tickets from first response through confirmed resolution. No tossing them over the fence. Debug independently by tracing system state, API logs, authorizer decisions, webhook delivery, and data flow across production. Diagnose issues spanning card issuance, authorization decisioning, transactions and settlement, webhooks, account holder KYC, disputes, and other configurable behaviors of the Lithic platform. A typical investigation might involve querying Snowflake to trace a transaction's lifecycle, checking Grafana dashboards for latency anomalies, pulling up the customer's integration in Retool, and documenting the resolution in The Vault Use internal tooling, Snowflake/dbt marts, Grafana/Loki, and AI-assisted workflows (Claude Code, internal agents) to investigate and resolve issues efficiently. Maintain high operational rigor in triage, prioritization, SLA adherence, and customer communication. Surface recurring failure patterns that inform product and engineering improvements. Drive permanent fixes, not just one-off resolutions. Contribute to The Vault (our Notion KCS knowledge base). Write the article you wished existed when you picked up the ticket. Create and update internal tooling using Metabase, Retool, Grafana, and Snowflake. What You'll Bring: 3+ years in a technical, execution-heavy role: Support Engineer, Solutions Engineer, Implementation Engineer, TAM, or similar. Ideally in fintech, payments, or developer-platform B2B SaaS. Strong debugging instincts and comfort operating in production environments where you won't always have a playbook. Comfortable with using and debugging REST API calls, webhooks, and configuration-driven systems. You are familiar with OpenAPI specs, JSON payloads, and can work through issues with calls fluently. SQL chops. You can independently write a query against a data warehouse (we use Snowflake + dbt) to answer a customer question without needing to ping a data analyst. Ability to reason through complex system behavior from first principles, not just follow runbooks. Clear, direct written communication internally and customer facing. You explain what happened, why, and what you did about it, without hedging or jargon. A strong bias toward ownership. You'd rather solve the problem than route the ticket. Comfortable using AI tools like (LLMs and coding assistants like Claude Code or Cursor) as a part of your daily workflow. Experience working in ticketing systems (Zendesk, Jira, or equivalent) Strong sense of ownership and ability to work independently in a remote environment Benefits for Full-Time US Employees: Unlimited PTO 12-weeks fully paid parental leave 4-Week Fully Paid Sabbatical (earned at your 5-year anniversary) Work From Anywhere: work from anywhere in the world 4-weeks each year 3% cashback on card purchases with your complimentary Privacy.com employee account Health, vision, and dental insurance; HSA Contribution Match 401(k) match Voluntary Life Insurance and STD/LTD NYC-based employees work from our SoHo office three days a week. Tuesdays and Thursdays are our core days, and you'll choose a third day that works for your schedule and team needs. Catered lunch every Tuesday and Thursday Voluntary Self-Identification For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file. As set forth in Lithic's Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law. Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Why are you being asked to complete this form? We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at . How do you know if you have a disability? A disability is a condition that substantially limits one or more of your major life activities. If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome Intellectual or developmental disability Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD Missing limbs or partially missing limbs Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS) Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities Partial or complete paralysis (any cause) Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema Short stature (dwarfism) Traumatic brain injury PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete. #J-18808-Ljbffr Lithic