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Talent Network: Senior Backend Engineer (Node.js)
Location
New Zealand
Posted
89 days ago
Salary
0
Seniority
Senior
Job Description
Talent Network: Senior Backend Engineer (Node.js)
Toptal
Job Summary: In this position, you will build and scale the backend for a borderless neobank on stablecoin rails. You’ll work across traditional banking integrations, blockchain infrastructure, and card issuance - ensuring every transaction is correct, every webhook is idempotent, and every workflow survives a crash. We are an agentic-first engineering team: you’ll ship with AI-assisted tooling daily, not as an experiment. This is a remote position. We do not offer visa sponsorship or assistance. Resumes and communication must be submitted in English. Responsibilities: The following information is intended to describe the general nature and level of work being performed. It is not intended to be an exhaustive list of all duties, responsibilities, or required skills. What You’ll Own - End-to-end feature delivery across banking, cards, crypto, and compliance modules - Temporal workflow design for critical financial operations - Webhook integration reliability (inbox pattern, signature verification, IP whitelisting) - Event-driven architecture evolution - Observability and incident response for payment flows Our Way of Work - Agentic-first: AI tools are infrastructure, not novelty. You’ll use Claude Code with custom skills, automated reviews, and MCP integrations daily - Correctness over speed: This is a financial system — idempotency, transactional integrity, and crash-resilience are table stakes - Codified standards: Architecture decisions live in .claude/rules/, ADRs, and per-module CLAUDE.md files — not tribal knowledge - TDD encouraged: Red-Green-Refactor with dedicated tooling support - Pre-commit quality gates: Lint + typecheck on commit, full test suite on push Qualifications and Job Requirements: Core Backend - Strong TypeScript/Node.js (NestJS preferred) - PostgreSQL — schema design, transactions, advisory locks, performance tuning - GraphQL API design (Apollo Server, resolvers, custom scalars, pagination) - Event-driven architecture — outbox/inbox patterns, idempotency, at-least-once delivery Distributed Systems & Reliability - Temporal.io or equivalent durable workflow engine (Cadence, Step Functions) - Designing idempotent activities and deterministic workflows - Retry policies, non-retryable error classification, and failure handling - Transaction boundaries in distributed systems Fintech Domain - Payment rails familiarity (ACH, SWIFT, Fedwire) or willingness to learn quickly - Double-entry accounting concepts - Webhook signature verification (HMAC, ECDSA, Svix) - KYC/KYB compliance flows Web3 / Blockchain - Solana ecosystem (SPL tokens, transaction construction, RPC interaction) - Stablecoin mechanics (USDC, EURC, mint/transfer/burn) - Wallet custody models (MPC wallets via Privy or similar) - Cryptographic signing (KMS-backed ECDSA) Agentic Engineering - Proficiency using AI coding assistants (Claude Code, Cursor, Copilot) as a daily multiplier - Ability to write effective prompts, review AI-generated code critically, and maintain code quality - Comfort with AI-assisted workflows: automated PR reviews, test generation, codebase exploration - Understanding when to trust AI output and when to verify manually Observability & Operations - APM and tracing (Datadog or equivalent) - Error tracking (Sentry) - Structured logging (Pino/Winston) - Blue-green deployments, health checks, graceful shutdown Nice to Have - Experience with Privy, Sumsub, Noah, or Rain APIs specifically - AWS KMS / HSM-backed signing - PostgreSQL logical replication - NestJS module architecture at scale (20+ modules) - Contributing to internal developer tooling (custom slash commands, MCP servers, Claude Code hooks)
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To help keep everyone safe, we encourage all applicants to pay close attention to protect themselves during their job search. When applying for a position online you are at risk of being targeted by malicious actors looking for personal data. Please be aware we will only reach out via email using the domain quanata.com. Anything that does not match those domains should be ignored and considered a security risk. About Us Quanata is on a mission to help ensure a better world through context-based insurance solutions. We are an exceptional, customer centered team with a passion for creating innovative technologies, digital products, and brands. We blend some of the best Silicon Valley talent and cutting-edge thinking with the long-term backing of leading insurer, State Farm. Learn more about us and our work at quanata.com Our Team From data scientists and actuaries to engineers, designers and marketers, we’re a world class team of tech-minded professionals from some of the best companies in Silicon Valley, and around the world. We’ve come together to create the context-based insurance solutions and experiences of the future. We know that the key to our success isn't just about nailing the technology—it’s hiring the talented people who will help us continue to make a quantifiable impact. The Role Quanata (San Francisco, CA) seeks a Senior Back End Engineer to design, build, and maintain the critical backend services that power our various insurance platforms. Specific duties include: analyze and design critical backend systems that power the business; help develop systems that dynamically provide rewards to safe drivers; coordinate cutting-edge models to increase the intelligence of the company’s industry leading policy management solution; optimize the company’s application's architecture and observability to meet the performance demands of a rapidly growing user base; design APIs, orchestrate data flows, create/manage databases, and build automated test suites; lead the design and implementation of substantial product features end-to-end and evaluate and integrate third-party services and tools. Must take and pass a series of pre-hire technical assessments evaluating competencies in API design, code structure, and system architecture, including the Refactoring Challenge, Integration Challenge, and System Design Challenge. Option to work remotely from anywhere in the U.S. Occasional quarterly travel may be required within the U.S. for team meetings or company gatherings. Position requires a Bachelor’s degree, or foreign equivalent, in Computer Science, Mathematics and Computer Science, or a closely related field of study, plus 5 years of experience in the job offered, or as a Lead Software Engineer, Computer Programmer Analyst, Senior Product Associate, Software Engineer, or similar senior software engineering position in backend services. Must have 5 years of experience building high performance client/server systems. Must also have 3 years of experience with the following: working with service-oriented architecture patterns; designing and using relational databases. Must have 1 year of experience working with Go. Specific experience must also include the following: working with Postgres, AWS, Kafka, Python, JavaScript, Docker, and Swagger; working in a financial sector such as insurance, banking, or investing. Must take and pass a series of pre-hire technical assessments evaluating competencies in API design, code structure, and system architecture, including the Refactoring Challenge, Integration Challenge, and System Design Challenge. Option to work remotely from anywhere in the U.S. Occasional quarterly travel may be required within the U.S. for team meetings or company gatherings. Salary: $270,660/yr. Full time position. Apply by submitting your resumes to submitresume@quanata.com, reference Job ID: Senior Back End Engineer in the subject line. Additional Details: - Benefits: We provide a wide variety of health, wellness and other benefits.These include medical, dental, vision, life insurance and supplemental income plans for you and your dependents, a Headspace app subscription, monthly wellness allowance and a 401(k) Plan with a company match. - Work from Home Equipment: Given our virtual environment— in order to set you up for success at home, a one-time payment of $2K will be provided to cover the purchase of in-home office equipment and furniture at your discretion. Also, our teams work with MacBook Pros, which we will deliver to you fully provisioned prior to your first day. - Paid Time Off: All employees accrue four weeks of PTO in their first year of employment. New parents receive twelve weeks of fully paid parental leave which may be taken within one year after the birth and/or adoption of a child. The twelve weeks is applicable to both birthing and non-birthing parent. - Personal and Professional Development: We’re committed to investing in and helping our people grow personally and professionally. All employees receive up to $5000 each year for professional learning, continuing education and career development. All team members also receive Udemy subscriptions and access to multiple different coaching opportunities through BetterUp. - Location: We are a remote-first company for most positions so you may work from anywhere you like in the U.S, excluding U.S. territories. Occasional travel may be required for team meetings or company gatherings. Employees based in the San Francisco Bay Area or in Providence, Rhode Island may commute to one of our local offices as desired. - Hours: We maintain core meeting hours from 9AM - 3PM Pacific time for collaborating with team members across all time zones. This role is not eligible for a referral bonus. #LI-DNI Quanata, LLC is an equal opportunity workplace. We are committed to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. If you are a San Francisco resident, please read the City and County of San Francisco's Fair Chance Ordinance notice. https://www.sf.gov/sites/https://www.sf.gov/sites/default/files/2022-12/FCO%20poster2020_0.pdf This role is employed by Quanata, LLC which is a separate company in the State Farm family of companies. If you require a reasonable accommodation, please reach out to your Talent Acquisition Partner for assistance.
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