Principal Software Engineer Node.js Backend

Job Title

Principal Software Engineer (Node.js Backend)

Full-Time, Contract / Permanent

7+ years of professional software engineering experience

We are seeking a Principal Software Engineer with deep expertise in Node.js backend development and strong database engineering skills to join a high‑performing engineering team. As a Principal Engineer, you will be a hands‑on technical leader who owns the design, architecture, and delivery of complex backend systems that power large‑scale digital platforms.

You will act as a force multiplier for your team — driving technical strategy, mentoring senior engineers, setting engineering standards, and shipping production‑grade systems that are highly available, performant, and secure. This is a senior individual‑contributor role with broad architectural influence across the platform.

• Design, architect, and deliver scalable, fault‑tolerant Node.js backend services and APIs that handle high‑volume, low‑latency workloads.
• Own the end‑to‑end technical design of services within your team, including data models, API contracts, integration patterns, and operational characteristics.
• Lead the design and optimization of relational and No
  
  SQL database systems — schema design, query tuning, indexing strategy, sharding, and replication.
• Drive engineering excellence: code quality, automated testing, CI/CD, observability, security, and SRE‑style operational ownership.
• Mentor and coach senior and intermediate engineers; conduct deep technical reviews of designs, code, and architectural proposals.
• Partner with Product Managers, Architects, SREs, Security, and Data Engineering teams to translate business goals into robust technical solutions.
• Troubleshoot and resolve highly complex production issues across distributed systems and propose efficient, durable engineering solutions.
• Contribute to the technology roadmap, evaluate and introduce new technologies, and define patterns and standards adopted across multiple teams.
• Champion Dev Sec Ops , cloud‑native development, and contemporary delivery practices.
• Document architectural decisions, runbooks, and reusable patterns to scale knowledge across the engineering organization.

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent practical experience).
• 7+ years of skilled software engineering experience building backend services in production.
• 5+ years of hands‑on Node.js development with strong command of asynchronous patterns, event loop behavior, streams, and performance tuning.
• Deep, demonstrable expertise in SQL and relational database design (Postgre
  
  SQL, MySQL, or MS SQL Server) — including complex queries, stored procedures, indexing, query plan analysis, and performance optimization.
• Proven experience designing and operating distributed systems, microservices, and event‑driven architectures at scale.
• Strong experience with RESTful API design and at least one of Graph
  
  QL, gRPC, or message‑based APIs.
• Experience with at least one major cloud platform (AWS, GCP, or Azure) in production.
• Strong understanding of software engineering fundamentals: data structures, algorithms, design patterns, concurrency, and system design.
• Track record of technical leadership — owning architecture, mentoring engineers, and influencing decisions across teams.
• Excellent analytical and troubleshooting skills for highly complex production issues.
• Strong written and verbal communication skills; able to articulate trade‑offs to both technical and non‑technical audiences.

• Experience in fintech, banking, brokerage, trading, or other regulated financial services environments.
• Experience with Type Script in large Node.js codebases.
• Familiarity with No
  
  SQL databases (Mongo
  
  DB, Dynamo
  
  DB, Cassandra) and caching layers (Redis, Memcached).
• Experience with high‑frequency data streaming and real‑time systems (Kafka, Kinesis, Rabbit
  
  MQ).
• Exposure to data engineering, analytics pipelines, or ML/AI integration in production.
• Experience with multi‑region, high‑availability deployments and disaster recovery design.
• Contributions…