Software Engineer

Ethereum Technologies; Newark (NJ); On-site; USD 84,000 - 120,000; Full time

Job summary

Ethereum Technologies in Newark, NJ seeks a Software Engineer to design, build, test, deploy, and support scalable software applications. The role focuses on Python and Java, REST APIs, microservices, databases, and modern web technologies.

You will collaborate with product, quality, and data teams to deliver reliable solutions. Responsibilities include designing backend services, data access layers, writing clean code with SOLID principles, and containerizing deployments with Docker and CI/CD.

Qualifications

• Bachelor's degree or higher in CS or related field.
• Experience building REST APIs with Spring Boot or equivalent.
• Familiarity with at least one relational DB and one NoSQL DB.
• Familiarity with Git, Linux, testing, Agile, and SDLC.

Responsibilities

• Design and develop backend services, REST APIs, and modular or microservice-based apps using Python and/or Java.
• Design data access layers for PostgreSQL, SQL Server, MySQL, MongoDB or similar.
• Write clean, maintainable code with SOLID principles and proper error handling.
• Create unit and integration tests; perform code reviews and release readiness tasks.
• Containerize and deploy apps using Docker and CI/CD across cloud or Linux environments.
• Use Git, Maven, Swagger/OpenAPI, Postman, and Jira to support development and delivery tracking.
• Collaborate in Agile/Scrum teams and communicate tradeoffs, risks, and progress.

Skills

Python

Java

REST APIs

Microservices

Docker

CI/CD

Git

Maven

Swagger/OpenAPI

Postman

Jira

Agile

SOLID principles

Unit testing

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Spring Boot

PostgreSQL

SQL Server

MySQL

MongoDB

Docker

CI/CD pipelines

Job description

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

Location: Newark, NJ

Duration: 8 Months + Extension

Bill Rate: $74/hour (C2C)

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

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

Job Description:

The Software Engineer will design, build, test, deploy, and support scalable software applications and services. The role suits an engineer with experience in Python and Java, REST APIs, microservices, relational and NoSQL databases, modern web technologies, cloud platforms, Linux, Docker, and CI/CD. The engineer will collaborate with product, business, quality, and data teams to convert requirements into reliable, maintainable solutions.

Key Responsibilities

• Design and develop backend services, REST APIs, and modular or microservice-based applications using Python and/or Java.
• Design data access layers and integrations for PostgreSQL, SQL Server, MySQL, MongoDB, or comparable databases.
• Write clean, maintainable, testable code using object-oriented design, SOLID principles, defensive validation, and appropriate error handling.
• Create unit and integration tests; participate in code reviews, defect resolution, release readiness, and production support.
• Containerize and deploy applications using Docker and CI/CD pipelines across cloud or Linux environments.
• Use Git, Maven, Swagger/OpenAPI, Postman, and Jira to support development, documentation, testing, and delivery tracking.
• Collaborate within Agile/Scrum teams and communicate technical tradeoffs, delivery risks, dependencies, and progress.

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
• Experience developing REST APIs and working with Spring Boot or a comparable application framework.
• Familiarity with one relational database and one NoSQL database.
• Familiarity with Git, Linux, software testing, Agile delivery, and the software development life cycle.
• Ability to analyze requirements, troubleshoot issues, and deliver independently while collaborating across teams.

Languages

• Spring Boot, JPA, Hibernate, Node.js, REST APIs, Swagger / OpenAPI

Frontend

• React, JavaFX, HTML, CSS

Data

• Git, Maven, Postman, Jira, Scrum, Agile, SDLC, SOLID principles, unit testing

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.