Senior Java Developer

Ethereum Technologies; Jersey City (NJ); On-site; USD 130,000 - 170,000; Full time

Job summary

Ethereum Technologies in Jersey City, NJ is seeking a senior software engineer to lead the design, development, and implementation of Java-based full-stack web applications, with emphasis on hands-on coding and delivering API-rich services.

You will mentor junior developers, collaborate with product owners using Jira/Confluence, support CI/CD in cloud-native environments, and ensure secure, scalable architectures while advancing front-end Angular integration.

Responsibilities

• Lead the design, development, and implementation of Java-based full-stack web applications.
• Architect and develop API-heavy, service-oriented and microservices-based applications using RESTful and SOAP web services.
• Design and document Low-Level Designs aligned with high-level architectural standards.
• Apply design patterns and architectural principles to build scalable, reusable, and maintainable solutions.
• Develop and promote reusable components and frameworks across multiple applications.
• Ensure seamless integration between front-end (Angular) and back-end services.
• Perform code reviews, enforce coding standards, and ensure internal quality assurance for application components.
• Analyze and resolve complex production issues under tight timelines and high pressure.
• Collaborate with product owners, business analysts, and stakeholders using Jira and Confluence.
• Support CI/CD pipelines and deployment in containerized and cloud-native environments.
• Mentor junior and mid-level developers and provide technical guidance to the development team.
• Continuously evaluate and recommend improvements to application architecture, performance, and security

Skills

Java

Angular

REST APIs

Microservices

Mentoring

Jira/Confluence

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Main areas of responsibilities:

• Lead the design, development, and implementation of Java-based, full-stack web applications - emphasis on hands on development.
• Architect and develop API-heavy, service-oriented and microservices-based applications using RESTful and SOAP web services.
• Design and document Low-Level Designs (LLD) aligned with high-level architectural standards.
• Apply appropriate design patterns and architectural principles to build scalable, reusable, and maintainable solutions.
• Develop and promote reusable components and frameworks across multiple applications.
• Ensure seamless integration between front-end (Angular) and back-end services.
• Perform code reviews, enforce coding standards, and ensure internal quality assurance for application components.
• Analyze and resolve complex production issues, often under tight timelines and high-pressure situations.
• Collaborate with product owners, business analysts, and stakeholders to understand and clarify requirements using tools such as Jira and Confluence.
• Support CI/CD pipelines and deployment processes in containerized and cloud-native environments.
• Mentor junior and mid-level developers and provide technical guidance to the development team.
• Continuously evaluate and recommend improvements to application architecture, performance, and security

Nice to have attributes:

• Experience in microservices architecture and domain-driven design (DDD).
• Experience developing API-centric applications and integrating distributed systems.
• Solid experience in front-end development using Angular (version 17 or above) and modern web standards.
• Strong understanding of relational database design, especially Oracle, including writing optimized and efficient SQL queries.
• Knowledge of security best practices, including authentication, authorization, and secure API design.
• Experience with CI/CD automation, DevOps practices, and infrastructure-as-code concepts.
• Familiarity with performance tuning, profiling, and monitoring tools.
• Prior experience in a technical leadership role.
• Strong mentoring skills and experience leading or guiding development teams.
• Exposure to Agile/Scrum methodologies.
• Excellent documentation and presentation skills.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.