ZipRecruiter

Log In

1

Volunteer Java Jobs in Brooklyn, NY (NOW HIRING)

BNY

Vice President, Full-Stack Engineer

Manhattan, NY · On-site

Core Java, Spring, and Spring Boot: REST controllers, dependency injection, configuration ... volunteer time, that can support you and your family through moments that matter. BNY is an Equal ...

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$100 - $130/hr

Bachelor's or Master's in Computer Science, or related degree * 5-10 years of Java experience ... Corporate events, including team outings, dinners, volunteer activities and company sports teams

Interactive Brokers

Sr Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

Bachelor's or Master's in Computer Science, or related degree * 5-10 years of Java experience ... Corporate events, including team outings, dinners, volunteer activities and company sports teams

Eliassen Group

Full Stack Engineer

Jersey City, NJ · On-site

$85 - $89/hr

Design, develop, test, and maintain full stack applications using Java and Angular. * Build and ... voluntary benefits including life and disability insurance, 401(k) with match, and sick time if ...

Eliassen Group

Full Stack Developer

New York, NY · On-site

$89 - $99/hr

Develop services using Node.js, Java (Spring Boot), Python (FastAPI), or .NET. * Work with SQL ... voluntary benefits including life and disability insurance, 401(k) with match, and sick time if ...

Point72

Software Engineer, Back Office Systems

New York, NY · On-site

$170K - $225K/yr

Familiarity with Java. * Commitment to the highest ethical standards. We take care of our people We ... Volunteer opportunities * Support for employee-led affinity groups representing women, people of ...

New

Point72

Software Engineer, Back Office Systems

New York, NY · On-site

$170K - $225K/yr

Familiarity with Java. * Commitment to the highest ethical standards. We take care of our people We ... Volunteer opportunities * Support for employee-led affinity groups representing women, people of ...

New

previous page

Showing results 41-60

All JobsVolunteer Java JobsVolunteer Java Jobs in Brooklyn, NY

Volunteer Java information

See Brooklyn, NY salary details

$16

$59

$81

How much do volunteer java jobs pay per hour?

As of Sep 7, 2026, the average hourly pay for volunteer java in Brooklyn, NY is $59.62, according to ZipRecruiter salary data. Most workers in this role earn between $51.59 and $66.73 per hour, depending on experience, location, and employer.

What is a Volunteer Java?

A Volunteer Java job is an unpaid role where individuals contribute their Java programming skills to support a project, organization, or community initiative. Volunteers may help with coding, debugging, testing, or improving software applications. These roles are typically found in non-profits, open-source projects, or educational initiatives. It’s a great opportunity to gain hands-on experience, expand your portfolio, and contribute to meaningful projects while improving Java skills.

What kind of projects might I work on as a Volunteer Java developer?

As a Volunteer Java developer, you'll typically work on software projects that support non-profit organizations, educational programs, or open-source initiatives. Projects might include building and maintaining web applications, automating processes for nonprofits, or contributing to digital tools used by community groups. You may collaborate with other volunteers, designers, and project managers in a remote or hybrid team environment. This experience offers the chance to strengthen your technical skills, expand your professional network, and make a positive impact while learning to navigate real-world software development challenges.

What are the key skills and qualifications needed to thrive in the Volunteer Java position, and why are they important?

To thrive as a Volunteer Java developer, you need a solid understanding of Java programming, object-oriented principles, and basic software development practices, often demonstrated through coursework, self-study, or project experience. Familiarity with systems like Git, integrated development environments (IDEs) such as Eclipse or IntelliJ IDEA, and participation in code collaboration platforms like GitHub is advantageous. Excellent communication, teamwork, and time management skills help you contribute effectively to projects and adapt to a volunteer-driven workflow. These skills are crucial for delivering high-quality code, collaborating within diverse teams, and ensuring the success of community-driven or non-profit software initiatives.

What are the most commonly searched types of Java jobs in Brooklyn, NY?

The most popular types of Java jobs in Brooklyn, NY are:

What are popular job titles related to Volunteer Java jobs in Brooklyn, NY?

For Volunteer Java jobs in Brooklyn, NY, the most frequently searched job titles are:

What job categories do people searching Volunteer Java jobs in Brooklyn, NY look for?

The top searched job categories for Volunteer Java jobs in Brooklyn, NY are:

What cities near Brooklyn, NY are hiring for Volunteer Java jobs?

Cities near Brooklyn, NY with the most Volunteer Java job openings:

Volunteer Java jobs near you
Infographic showing various Volunteer Java job openings in Brooklyn, NY as of August 2026, with employment types broken down into 84% Full Time, 15% Part Time, and 1% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $124,005 per year, or $59.6 per hour.

Senior Performance Engineer

Eliassen Group

Jersey City, NJ • On-site

$68 - $73/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 16 days ago

Job description

Description:

On-site in Jersey City, NJ

Our client seeks a Senior Performance Engineer to define strategy, establish performance excellence, and create systems that make performance a default outcome for software delivery within digital asset platforms. The role includes hands-on performance test design and execution, custom Java-based harness development, benchmarking frameworks, and validation of production readiness across distributed, cloud-based systems.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $68.00 to $73.00/hr. w2

Responsibilities:
  • Design, develop, and perform performance tests across services and platforms.
  • Build custom Java-based performance test harnesses to simulate trading workflows, market data ingestion, order routing, and exchange connectivity.
  • Develop benchmarking frameworks and production-like simulators for micro and macro latency measurement.
  • Create and run load, stress, endurance, duration, spike, soak, volume, and capacity test scenarios.
  • Validate and sign off on production readiness for stability and performance across applications and infrastructure.
  • Connect performance outcomes to business objectives and SLOs, guiding teams to keep the stack scalable and efficient.
  • Lead architecture and development of profiling and instrumentation for CPU, memory, hot paths, utilization, and deployment events.
  • Partner with DevOps and back-end engineering to ensure optimal service utilization.
  • Debug distributed and low-level system boundaries using logs, metrics, tracing, and performance tooling.
  • Ramp up on new technologies and unfamiliar parts of the stack.
Experience Requirements:
  • 6+ years of performance engineering with hands-on test development.
  • Strong performance testing across low-latency, high-throughput, high-volume services. Trading services experience preferred.
  • Expertise in Java and core Java technologies with Spring Boot services.
  • Experience with distributed systems, asynchronous workers, and microservice architecture.
  • Cloud familiarity with AWS, Azure, or GCP and containerized, orchestrated environments.
  • Deep understanding of performance-critical software and hardware interactions at scale.
  • JVM internals and tuning expertise with actionable recommendations.
  • Proficiency with Dynatrace, Datadog, or AppDynamics; thread and heap dump analysis.
  • Proven ability to identify memory leaks, connection issues, and throughput bottlenecks across web apps, infrastructure, and cloud.
  • Experience architecting large-scale test automation.
  • Strong communication and influence skills with senior engineering and product leaders.
  • Track record leading cross-team performance initiatives and decisions.
  • Collaborative mindset with mentoring and productivity focus.
  • Nice to have: capital markets or cryptocurrency experience in trading, algo trading, and market data.
  • Nice to have: kernel bypass such as Solarflare OpenOnload.
  • Nice to have: low-latency messaging products such as Aeron, Solace, or 29West.
Education Requirements:
  • Bachelor’s degree in computer science or related field.
Recruitment Transparency Notice
 
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (noreply@eliassen.com, 781-808-2924) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.
 

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact fraud@eliassen.com.

 
About Eliassen Group:
 
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.
 
Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.
 
Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!
 
Eliassen Group logo

About Eliassen Group

Sourced by ZipRecruiter

Eliassen Group provides strategic consulting and talent solutions to drive our clients' innovation and business results. Our purpose is to positively impact the lives of our employees, clients, consultants, and the communities in which we operate. Leveraging over 30 years of success, our expertise in talent solutions, life sciences consulting, Agile consulting, cloud services, risk management, business optimization, and managed services enables us to partner with our clients to execute their business strategy and scale effectively. Headquartered in Reading, MA, and with offices from coast to coast, Eliassen Group offers local community presence and deep networks, as well as national reach.

Industry

It services

Company size

5,001 - 10,000 Employees

Headquarters location

Reading, MA, US

Year founded

1989

View All Eliassen Group Jobs