Senior Software Engineer – Hybrid

Jobtailor

New Jersey

On-site

USD 140,000 - 180,000

Full time

2 days ago

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Job summary

Jobtailor in New Jersey seeks a senior Node.js engineer to design, develop, and maintain microservices in a Lerna-managed monorepo using Express.js and NestJS, with a focus on high-throughput financial data processing.

You will optimize MySQL performance with Prisma/Sequelize, implement AWS SQS/BullMQ messaging, mentor juniors, review code, and contribute to API design and OpenAPI specs, ensuring production reliability with Jest tests and CI/CD improvements in Jenkins.

Qualifications

5+ years of production Node.js experience.
1+ years of hands-on TypeScript in production.
Experience optimizing MySQL performance and migrations.
Experience with Prisma and Sequelize ORMs.
Production experience with AWS SQS, Redis/BullMQ, or similar queues.
Strong unit, integration, and end-to-end testing.
Proficient with Docker, containerization, and orchestration.

Responsibilities

Design, develop, and maintain microservices in a Lerna-managed monorepo using Express.js and NestJS.
Architect scalable solutions for high-throughput financial data processing.
Collaborate on API design and maintain OpenAPI specifications.
Lead code reviews and mentor junior developers.
Improve CI/CD processes and participate in Jenkins pipelines.
Ensure system reliability with comprehensive Jest testing and production monitoring.

Skills

Node.js Production Experience

Expert-Level TypeScript Knowledge

MySQL Optimization

Docker and Containerization

REST API Development

NestJS

Jest Testing

CI/CD Experience

Microservices Architecture

OpenAPI / API Design

Tools

Prisma ORM

Sequelize ORM

Express.js

Jenkins

BullMQ

Redis

LocalStack

Multi-stage Builds

Job description

• Design, develop, and maintain microservices within a Lerna-managed monorepo using Express.js and NestJS
• Architect scalable solutions for high-throughput financial data processing
• Optimize database performance across MySQL instances using Prisma and Sequelize ORMs
• Implement message queue systems using AWS SQS and BullMQ/Redis
• Lead code reviews and mentor junior developers on best practices
• Collaborate on API design and maintain OpenAPI specifications
• Ensure system reliability through comprehensive Jest testing
• Participate in CI/CD pipeline improvements using Jenkins
• Debug and optimize production issues across distributed services

Requirements

5+ years of production Node.js experience
Expert-level TypeScript knowledge, including type inference and advanced patterns
MySQL optimization, query performance tuning, and migration strategies
Experience with Prisma and Sequelize ORMs
Production experience with AWS SQS, Redis/BullMQ, or similar message-queuing systems
Unit, integration, and E2E testing expertise
Docker and containerization experience, including multi-stage builds, orchestration, and optimization
NestJS and REST API development expertise preferred
Financial services or fintech background preferred
AWS services experience, including SQS, S3, and LocalStack, preferred
Familiarity with conventional commits and semantic versioning preferred
Experience migrating legacy codebases while maintaining production stability preferred
Knowledge of Redis for caching and job queue management preferred

Core Competencies

Demonstrates expertise in designing and developing microservices using Node.js, TypeScript, and various ORMs, while ensuring system reliability and performance optimization in financial services. Proven ability to lead code reviews, mentor junior developers, and enhance CI/CD processes.

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