Lead Engineer

Codinix Consulting Services; New Jersey; On-site; USD 112,500 - 137,500; Full time

Job summary

Codinix Consulting Services is looking for a skilled Lead Engineer to lead the design and development of scalable backend systems in Whippany, New Jersey. The ideal candidate will possess strong hands-on experience in Java backend development, expertise in building REST APIs and microservices using Spring Boot, and a proven ability to mentor engineering teams. This full-time role offers competitive compensation and opportunities for technical leadership in a collaborative environment.

Qualifications

• 7-10 years of backend engineering experience.
• Strong hands-on experience in Java backend development for scalable enterprise applications.
• Experience working with both relational and NoSQL databases.

Responsibilities

• Lead the design and development of backend systems using Java and Spring Boot.
• Guide engineering teams in developing modular, maintainable, and production-ready solutions.
• Ensure application scalability, reliability, resiliency, and performance optimization.

Skills

Java backend development

REST APIs

Microservices

Object-Oriented Programming (OOP)

Design patterns

Distributed systems architecture

Kafka

RabbitMQ

Apache Flink

Tools

Amazon Web Services (AWS)

Microsoft Azure

Google Cloud (GCP)

Job description

Location: Whippany

Employment Type: Full-Time (FTE Only)

Salary: $125K

Purpose of the Role

We are seeking a highly skilled Lead Engineer to lead the design and development of scalable backend systems while guiding engineering teams in building secure, high-performance, and production-ready applications.

This role combines hands‑on backend development, architectural leadership, technical mentoring, and cross-functional collaboration to deliver enterprise-grade distributed systems and real-time streaming solutions.

Key Responsibilities

• Lead the design and development of backend systems using Java and Spring Boot
• Design and implement scalable, secure, and high-performance REST APIs and microservices
• Drive architectural decisions for distributed and event-driven systems
• Guide engineering teams in developing modular, maintainable, and production-ready solutions
• Conduct code reviews and enforce coding standards and engineering best practices
• Mentor and support developers through technical guidance and leadership
• Collaborate with product managers, frontend engineers, DevOps, and other stakeholders
• Participate in technical design discussions and solution architecture planning
• Ensure application scalability, reliability, resiliency, and performance optimization
• Support deployment activities, debugging, and production issue resolution
• Promote clean coding standards, automation, and quality-first development practices
• Continuously evaluate emerging technologies and recommend engineering improvements

Basic / Essential Qualifications

• Strong hands‑on experience in Java backend development for scalable enterprise applications
• Expertise in building REST APIs and microservices using Spring Boot
• Strong understanding of:
  • Object‑Oriented Programming (OOP)
  • Design patterns
  • Secure application development
  • Distributed systems architecture

Databases & Messaging

• Experience working with:
  • Relational databases
  • NoSQL databases
  • Messaging platforms such as:
    • Apache Kafka
    • RabbitMQ
• Exposure to cloud platforms including:
  • Amazon Web Services (AWS)
  • Microsoft Azure
  • Google Cloud (GCP)
• Proven ability to lead small to mid‑sized engineering teams
• Experience conducting:
  • Code reviews
  • Technical design sessions
  • Architecture discussions
  • Engineering mentorship
• Strong analytical, communication, and problem‑solving skills

Streaming & Real‑Time Processing

• Strong hands‑on experience with:
  • Kafka Streams
  • Apache Flink
• Event‑driven architecture

Distributed Systems Expertise

• Strong understanding of:
  • Partitioning strategies
  • Consumer group design
  • Parallel processing
  • Fault tolerance
  • Backpressure handling
  • Resiliency patterns
• Proven track record of delivering production‑grade, maintainable code
• Experience with:
  • Automated testing frameworks
  • Test‑driven development (TDD)
  • CI/CD best practices
• Ability to make pragmatic architecture and design trade‑offs balancing:
  • Scalability
  • Performance
  • Maintainability
  • Reliability

Performance Optimization

• Experience in:
  • Capacity planning
  • System tuning
  • High‑throughput application optimization
  • Production performance monitoring

Experience Required

• 7–10 years of backend engineering experience
• Prior experience in technical leadership or team lead responsibilities preferred