Full Stack Engineer - Remote Eligible

Engineer, Full Stack

NymCard's mission is to enable fintech and financial innovators to launch frictionless payment programmes with our modern infrastructure, at record speed. Our open API modern card issuing platform provides flexibility and control to issue cards, authorise transactions, and manage payment operations with just one integration and one partner. We are a team of industry experts and technology innovators who take a dynamic approach to solving complex industry challenges. NymCard has an open and collaborative work environment and together we make up the NymCardian Nation. We power possibilities for our customers and each other by bringing the best talent together to do the best quality work we can.

The Role

We are hiring an Engineer, Full Stack to build secure, reliable features across backend services and web consoles on an API-first platform. You will translate product requirements into clean Python (Django, FastAPI) or Node.js (NestJS, Fastify) services and React front ends (web apps, SDKs), keep observability and testability high, and make sure deliveries are audit ready. You will work closely with Product, Design, QA, Security, Compliance, and Service Delivery so scope is feasible, timelines are predictable, and handovers are clean.

What You'll Be Doing

• Design and build features across backend APIs and frontend UI, from data models to component behavior.
• Backend: implement services in Python (Django, FastAPI) or Node.js (NestJS, Fastify) frameworks; define REST contracts, validation, idempotency, and error models; write integration and contract tests.
• Frontend: build in React using JavaScript/TypeScript, state management, reactive forms, and accessible extensible components.
• Data and correctness: write SQL for reads and updates, model entities and events, and add checks that reconcile with downstream consumers.
• Security by design: apply authentication and authorization, safe secrets handling, and careful PII handling aligned to PCI and ISO expectations.
• Observability: add structured logs, metrics, and traces; define basic SLIs and dashboards for your features.
• Performance and resilience: use sensible caching and timeouts, apply retries with backoff where needed, and keep latency budgets in mind.
• Quality: maintain unit, component, and end-to-end tests; keep CI checks green; write concise docs and change notes.
• Payments awareness: Handle flows like 3DS, tokenization, payment lifecycle states, refunds, BNPL plans, and reporting.
• Collaboration: review designs and code, break work into small PRs, and provide clear updates on risks, decisions, and next steps.

What You Bring

• 4 to 6 years building web applications or platforms in fintech, payments, banking, or high-scale SaaS.
• Backend strength in Python (Django / FastAPI) or Node.js (NestJS / Fastify), REST, and clean API design.
• Frontend strength in React with JavaScript/TypeScript and practical state management.
• Solid SQL and data modeling. Comfortable writing joins, using indexes, and reviewing query plans at a basic level.
• Working knowledge of CI and CD, containerized apps, and environment configuration.
• Good testing habits: unit, integration or contract, and key UI journeys using Jest, Jasmine, Cypress, or Playwright.
• Security and privacy basics: authn and authz patterns, safe storage, and input handling.
• Clear writing, tidy pull requests, and reliable follow through.
• Nice to have: Kafka / RabbitMQ or event-driven architectures, Redis caching, experience with BI/analytics instrumentation.

Bonus Points

• Hybrid working model: In-office collaboration for design reviews, workshops, and team days, with flexible remote time for deep work. Clear expectations on core hours and availability.
• Ownership and growth: Small teams and direct access to decision makers. End-to-end responsibility for your area, support for certifications and learning, and progression based on outcomes.
• Cross-border exposure: Work with clients and partners across MENA and beyond. Gain hands-on experience with schemes, banks, and regulators, and broaden your domain expertise.
• Real product and business impact: Build for a live issuing platform used by fintechs. See measurable results on performance and revenue within weeks, and celebrate wins backed by data.