Design, build, and maintain scalable backend services using Node.js. Collaborate with Solution Architects, Product Managers, and DevOps teams. Contribute to CI/CD pipelines, cloud deployments, and production readiness.
Key Highlights
Key Responsibilities
Technical Skills Required
Job Description
Location: Islamabad (Hybrid / Relocation Required)
About Fasset
Fasset is building regulated, enterprise-grade financial and digital asset infrastructure. Our backend systems power transaction processing, digital banking, and Web3 platforms with a strong focus on security, scalability, and compliance.
We are looking for a Senior Backend Engineer (Node.js) to design, build, and own backend services powering mission-critical financial systems.
Key Responsibilities
- Design, develop, and maintain scalable backend services using Node.js.
- Build and operate microservices and event-driven systems.
- Design and implement API-first services, including REST APIs and WebSockets.
- Implement and maintain authentication and authorization mechanisms, including JWT-based security.
- Integrate identity, access control, and role-based authorization into backend services.
- Work with Kafka, RabbitMQ, or similar messaging platforms.
- Ensure backend services meet security, performance, and compliance requirements.
- Collaborate closely with Solution Architects, Product Managers, and DevOps teams.
- Contribute to CI/CD pipelines, cloud deployments, and production readiness.
- Participate in code reviews and mentor junior engineers.
Required Skills & Experience
- Strong hands-on experience with Node.js in production environments.
- Experience building backend services using frameworks such as NestJS, Express, or similar.
- Solid understanding of:
- Microservices architecture
- Event-driven systems
- Distributed systems fundamentals
- Hands-on experience with JWT, token-based authentication, and authorization flows.
- Strong understanding of authentication protocols and patterns (e.g., OAuth2 concepts).
- Experience with REST APIs, WebSockets, and API-first design.
- Strong experience with:
- Relational databases (PostgreSQL, MySQL, etc.)
- NoSQL databases
- Experience with Kafka, RabbitMQ, or similar solutions.
- Familiarity with secure coding practices and backend security best practices.
- Experience with CI/CD pipelines, containers, and cloud platforms (preferably AWS).
Preferred Experience
- Experience in Fintech, Digital Banking, or Web3.
- Exposure to high-throughput, transaction-heavy systems.
- Experience working in regulated or compliance-driven environments.
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