Senior Full Stack Engineer (Node+React) - U.S. 100% Remote

About ClientThey are on a mission to make Americans healthier.

Our simple and trusted benefits platform is delivering a new age of high-quality, personalized health coverage.

Large and medium-sized employers love the time and cost savings we deliver.About PositionWe are seeking a highly skilled Senior Full Stack Engineer to join our client's growing engineering team.

This role requires a versatile developer with strong backend expertise in Node.js and solid frontend experience in modern JavaScript frameworks (React, Angular, or Vue).

ResponsibilitiesDesign, build, and maintain scalable full stack applications.Collaborate with product and design teams to deliver high-quality user experiences.Write clean, efficient, and well-documented code across the stack.Ensure compliance with PCI-DSS standards and proactively address security vulnerabilities.Participate in code reviews, architecture discussions, and technical planning.Continuously optimize system performance, scalability, and reliability.Must have5+ years of experience as a Full Stack Engineer.Strong proficiency in Node.js and backend architecture.Proficient in React, Angular, or Vue.js for frontend development.Solid understanding of REST APIs and microservices architecture.Proven experience working with PCI-compliant systems and knowledge of data security principles.Familiarity with cloud platforms such as AWS, Azure, or GCP.Experience with CI / CD, containerization (Docker / Kubernetes), and infrastructure as code.Excellent communication skills and ability to work collaboratively in remote teams.Strong problem-solving skills and attention to detail.Fluent in English.Nice to HaveExperience with TypeScript in both frontend and backend.Familiarity with GraphQL.Experience integrating with third-party payment gateways (e.g., Stripe, Braintree, Adyen).

Knowledge of serverless architecture (e.g., AWS Lambda).

Experience with event-driven systems and message queues (e.g., Kafka, RabbitMQ).

Exposure to SOC 2 or HIPAA-compliant environments.Familiarity with automated testing frameworks (e.g., Jest, Cypress).

Experience with monitoring and observability tools (e.g., Datadog, Prometheus).

Previous work in fintech, e-commerce, or healthtech sectors.Knowledge of OAuth 2.0 and modern authentication / authorization patterns.

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