Lead- Fullstack

Tech Mirrors; New Jersey; On-site; USD 90,000 - 120,000; Full time

Job summary

Tech Mirrors is looking for a skilled Java Developer based in New Jersey. The ideal candidate will have 5-10 years of experience in Java application development and a strong expertise in Core Java, Spring, and Spring Boot. Responsibilities include designing and maintaining web applications, implementing backend logic, and optimizing database objects.

The candidate should also have experience with REST APIs and a familiarity with frontend technologies such as React or Angular. Join us to work collaboratively in Agile/Scrum environments.

Qualifications

• 5-10 years of experience in Java application development.
• Strong expertise in Core Java.
• Hands-on experience with Spring and Spring Boot.

Responsibilities

• Design, develop, and maintain Java-based web applications using Spring / Spring Boot.
• Implement robust backend logic using Core Java.
• Develop and optimize database objects using SQL.

Skills

Java application development

Core Java

Spring

Spring Boot

SQL

REST APIs

React

Angular

Agile/Scrum

DB Design

Job description

Key Responsibilities

• Design, develop, and maintain Java-based web applications using Spring / Spring Boot
• Implement robust backend logic using Core Java
• Develop and optimize database objects using SQL
• Build and consume RESTful web services
• Participate in system design, architecture, and technical discussions
• Collaborate with frontend teams using React / Angular (hands‑on or integration‑level)
• Perform code reviews and ensure adherence to coding standards
• Troubleshoot and resolve application, performance, and production issues
• Mentor junior developers and provide technical guidance (for Lead role)
• Work closely with QA, DevOps, and business stakeholders
• Prepare and maintain technical documentation

Required Skills & Experience

• 5-10 years of experience in Java application development
• Strong expertise in Core Java
• Hands‑on experience with Spring, Spring Boot
• Strong working knowledge of general RDMS & SQL concepts
• Experience in Java web technologies and enterprise applications
• Good understanding of REST APIs
• Familiarity with frontend technologies such as React or Angular (advantageous)
• Experience working in Agile/Scrum environments
• Strong analytical, problem‑solving, and communication skills
• Strong knowledge of DB Design & SQL Concepts

Good to Have

• Experience with Hibernate / JPA
• Exposure to microservices architecture
• Knowledge of CI/CD tools, Git, Maven/Gradle
• Exposure to cloud platforms (AWS/Azure)