Senior Full-Stack Developer (Node.js)

About the Client

https://vault.com/

Our client is the company behind Vault — a well-established platform providing career intelligence, employer insights, and professional development resources to a global audience.

As part of their continued growth, the company is investing in building new internal and external systems focused on communication, marketing, and integrations, with a strong emphasis on scalability, reliability, and modern architecture.

Overview

We are seeking a highly experienced Senior Full-Stack Developer / Architect to lead the design, development, and delivery of scalable, production-grade systems.

This role goes beyond feature development — you will own the full software lifecycle, from architecture and implementation to deployment and long-term reliability.

You will play a key role in translating business requirements into robust technical solutions while ensuring system scalability, performance, and maintainability.

Key Responsibilities:

End-to-End System Ownership

• Design and deliver complete solutions across the full stack (UI → API → database → integrations)
• Own system architecture and long-term maintainability
• Ensure high availability, performance, and data integrity in production

Architecture & System Design

• Design scalable data models (relational + flexible structures such as JSON/JSONB)
• Define service boundaries and integration patterns (REST, GraphQL, event-driven systems)
• Anticipate scale challenges, failure modes, and dependencies
• Make and clearly communicate architectural trade-offs

Full-Stack Development

• Build and maintain: Frontend applications (React, Angular, Vue, Next.js); Backend services (Node.js, Python, Java, or C#); APIs and business logic layers.
• Design and optimize databases (PostgreSQL, MySQL, MongoDB);
• Implement secure authentication and authorization mechanisms.

Infrastructure & DevOps

• Design and manage cloud infrastructure (AWS or Azure)
• Build and maintain CI/CD pipelines
• Implement monitoring, logging, and alerting systems
• Ensure system security and compliance standards

Production Ownership

• Take responsibility for system uptime, performance, and reliability
• Implement observability (logs, metrics, tracing)
• Design resilient systems (retry logic, idempotency, fault tolerance)
• Troubleshoot and resolve production issues

Engineering Standards & Leadership

• Establish and enforce coding standards and testing practices
• Prevent technical debt and ensure maintainable code
• Conduct code reviews
• Mentor and support junior and mid-level engineers

Cross-Functional Collaboration

• Translate business requirements into technical solutions
• Collaborate with stakeholders to deliver projects on time and within budget
• Coordinate across teams for successful system integration

Required Qualifications

• 7+ years of experience in full-stack software development;
• Proven experience designing and delivering scalable production systems;
• Strong expertise in: Frontend frameworks (React, Angular, Vue, or similar) Backend development (Node.js, Python, Java, or C#)
• Strong experience with PostgreSQL and database design/optimization;
• Hands-on experience with AWS or Azure;
• Experience with containerization (Docker, Kubernetes);
• Strong understanding of API design (REST / GraphQL);
• Experience with CI/CD pipelines and DevOps practices;
• Deep understanding of system design, performance, and scalability;
• Strong problem-solving and communication skills;
• Ability to work independently and take ownership.

Nice to Have

• Experience with event-driven architectures and distributed systems;
• Experience with external integrations (APIs, EDI, third-party systems);
• Familiarity with regulated environments (e.g., healthcare, compliance);
• Experience with JSONB and hybrid data modeling approaches.

Work Setup

• Fully remote, distributed team (US & international)
• Partial overlap required: PST 8:00 AM – 11:00 AM (team hours)
• High-ownership, low-bureaucracy environment.