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Senior Principal Node.js Engineer (Remote)

About the Role

KloudOpp Limited is seeking an elite Senior Principal Node.js Engineer with deep expertise across the complete Node.js ecosystem — including Node.js 10 → 22, modern JavaScript (ES6 → ES2024), TypeScript, backend frameworks, cloud-native design, and distributed microservices.
This role is for a senior technical leader who has architected, built, and delivered enterprise-grade systems, cloud-native microservices, secure backend applications, and highly complex business logic–driven platforms across FinTech, HealthTech, Blockchain, and Logistics.
You must be hands-on, advanced in modern backend engineering, comfortable with live system troubleshooting, and capable of teaching and mentoring at a senior level.
A security background check, rigorous technical assessment, and GitHub repositories showcasing real work are mandatory.

Key Responsibilities
Architecture & Engineering:

Architect and build scalable, cloud-native microservices using Node.js and TypeScript.
Design modern, secure monolithic backend systems where domain cohesion is appropriate.
Apply Domain-Driven Design (DDD), Clean Architecture, Hexagonal Architecture, CQRS, and Event-Driven patterns.
Implement high-performance services using async/await, streams, workers, clustering, and event loops.

Backend Frameworks & Services:
Expert-level experience in at least:

Cloud, DevOps & Infrastructure:

Build, deploy, and operate Node.js applications on AWS, Azure, or GCP.
Design and maintain CI/CD pipelines, Docker-based workflows, and Kubernetes deployments.
Implement observability: logging, metrics, tracing, distributed monitoring, and incident response.

Hands-on work with SQL & NoSQL systems:
PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, Cassandra, Elasticsearch.
Build event-driven data flows using Kafka, RabbitMQ, NATS, SQS, Pub/Sub, or similar.
Design transaction-safe workflows, caching strategies, and scalable data architecture.

Security & Compliance:

Build secure APIs and enterprise applications following OWASP, PCI-DSS, HIPAA, ISO 27001, or industry equivalents.
Implement OAuth2, JWT, RBAC, secrets management, encryption, rate limiting, throttling, and zero-trust patterns.
Participate in — and pass — the required security and background check.

Teaching, Leadership & Collaboration:

Mentor engineering teams through code reviews, architecture sessions, and live technical workshops.
Teach internal learners or trainees as needed.
Work on live client projects, deliver demos, create engineering documentation, and support PoCs.

Required Experience

10+ years of backend engineering experience.
Expertise in Node.js 10 → 22, modern JavaScript (ES6+), and TypeScript.
Proven delivery of cloud-native microservices and distributed systems at enterprise scale.
Strong experience delivering solutions in FinTech, HealthTech, Logistics, and Blockchain.
DevOps experience with AWS/Azure/GCP.
Strong SQL & NoSQL database experience.
Ability to teach and mentor at a high level.
Must pass security background checks.
Must pass a rigorous technical assessment.

Why Join KloudOpp Limited?

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About the Role

KloudOpp Limited is seeking a Senior Principal Technical Database Developer & Administrator to design, implement, and manage enterprise-grade database systems for mission-critical applications.
This is not a standard DBA or developer role — the ideal candidate must be highly technical, capable of designing highly available, scalable, and secure database architectures, implementing complex stored procedures, performance optimization strategies, and leading database projects across distributed, cloud-native, and microservice-driven systems.
Candidates must have verifiable experience in FinTech, Banking, Insurance, HealthTech, EdTech, or other core technology platforms, meet US senior-level technical standards, and hold advanced database and cloud certifications.

Key Responsibilities
Database Architecture & Development:

Design, develop, and maintain highly available, scalable, and secure database systems.
Lead the implementation of relational (SQL) and non-relational (NoSQL) databases across cloud-native and on-premises environments.
Develop complex stored procedures, triggers, views, and scripts to support enterprise applications.
Collaborate with engineers and architects to integrate databases into microservices, data pipelines, and distributed systems.

Performance Optimization & Monitoring:

Conduct database performance tuning, query optimization, and indexing strategies.
Implement real-time monitoring, alerting, and logging for database systems.
Conduct capacity planning and database scaling strategies for high-volume, high-throughput applications.

Data Security & Compliance:

Ensure databases comply with PCI-DSS, HIPAA, GDPR, ISO 27001, SOC2, and other regulatory standards.
Implement backup, recovery, disaster recovery, and failover strategies.
Conduct audits, vulnerability assessments, and access controls to ensure secure data management.

Enterprise Leadership & Mentoring:

Mentor junior database developers and administrators on advanced SQL, NoSQL, and cloud database best practices.
Lead architecture reviews, database design sessions, and technical workshops.
Collaborate with cross-functional teams to ensure data integrity, availability, and performance.

Required Experience

Candidates should possess relevant qualifications.
10+ years in database development, administration, or senior database engineering roles.
Verifiable experience in FinTech, Banking, Insurance, HealthTech, EdTech, or core technology platforms.
Hands-on technical expertise with:
- Relational Databases: SQL Server, PostgreSQL, Oracle, MySQL
- NoSQL Databases: MongoDB, Cassandra, Redis, DynamoDB
- Cloud Platforms: AWS RDS/DynamoDB, Azure SQL, Google Cloud SQL/Bigtable
- Data Engineering & Integration: ETL, data pipelines, API data access
Experience with high-volume, mission-critical, and highly concurrent systems.
Expertise in performance tuning, replication, sharding, and database clustering.
Experience in cross-functional, globally distributed teams.
Strong stakeholder management skills with ability to influence engineering and product leadership.
Must pass security and background checks.
Must pass a rigorous technical assessment.

Preferred Certifications:

Why Join KloudOpp Limited?

Fully Remote Work — collaborate with global engineering, product, and data teams.
Lead enterprise-scale database systems for mission-critical applications.
Opportunity to mentor, teach, and shape advanced database practices.
Work directly with engineering, security, and product teams on live systems.
Career path to Distinguished Database Engineer, Principal Architect, or Senior TPM roles.

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