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Java Application Developer Jobs in Holtsville, NY

Scadea Solutions Inc

Sprint Engineer

Holtsville, NY · On-site

Job Role - Sprint Certification Engineer Work Location - Holtsville, NY Project Duration - 6 months ... application design documentation Build technical components (Maximo objects, TRM Rules, Java ...

redShift

AS400 Programmer

Hicksville, NY · On-site

$85K - $110K/yr

Ability to analyze and troubleshoot complex application issues Java Development * Minimum 1 year of professional Java development experience * Strong understanding of object-oriented programming ...

redShift

AS400 Programmer

Hicksville, NY

$85K - $110K/yr

Ability to analyze and troubleshoot complex application issues Java Development * Minimum 1 year of professional Java development experience * Strong understanding of object-oriented programming ...

redShift Recruiting

AS400 Programmer

Hicksville, NY

$85K - $110K/yr

Ability to analyze and troubleshoot complex application issues Java Development * Minimum 1 year of professional Java development experience * Strong understanding of object-oriented programming ...

Broadridge

SQL developer (Contract)

Edgewood, NY · Remote

$60 - $70/hr

Knowledge and hands-on experience in AWS, Jenkins, Java, Python a plus * Financial Industry ... Any attempt to falsify, misrepresent, or disguise information in an application, resume, assessment ...

New

Optimum

Sr Engineer, IAM

Bethpage, NY · On-site

$107K - $146K/yr

... application portfolio 3. Developer Platform & Enablement Own the IAM developer experience ... Proficiency in at least one modern programming language (e.g., JavaScript, Python, Java, Go) for ...

Broadridge

AI Prompt Engineer(Contract)

Edgewood, NY

Experience with Java, SQL, Python, JavaScript/TypeScript, or similar programming and scripting languages. * Experience working with APIs, JSON, structured outputs, application integrations, and ...

New

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All JobsJava Application Developer JobsJava Application Developer Jobs in Holtsville, NY

Java Application Developer information

See Holtsville, NY salary details

$25

$59

$86

How much do java application developer jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for java application developer in Holtsville, NY is $59.33, according to ZipRecruiter salary data. Most workers in this role earn between $48.80 and $70.29 per hour, depending on experience, location, and employer.

What is the difference between Java Application Developer vs Java Software Engineer?

AspectJava Application DeveloperJava Software Engineer
Required CredentialsBachelor's in Computer Science or related field, Java certificationsBachelor's in Computer Science or related field, Java certifications
Work EnvironmentDevelops, tests, and maintains Java applicationsDesigns and implements Java-based solutions, often involved in architecture
Employer & Industry UsageTech companies, software firms, enterprise applicationsTech firms, consulting, enterprise software development
Common Search & ComparisonFocuses on application development tasksBroader role including system design and architecture

Java Application Developers primarily focus on building, testing, and maintaining Java applications, while Java Software Engineers often have a broader role involving system design and architecture. Both roles require similar credentials and are used across tech and enterprise industries, but their day-to-day responsibilities differ slightly.

What are some common challenges Java Application Developers face when working on large-scale enterprise projects?

Java Application Developers working on large-scale enterprise projects often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining robust security practices. Coordinating with cross-functional teams like QA, DevOps, and UI/UX can also present integration and communication hurdles. Staying up-to-date with evolving Java frameworks and best practices is essential to address performance bottlenecks and optimize application efficiency. Proactive problem-solving and effective collaboration are key to overcoming these challenges.

What does a Java Application Developer do?

A Java Application Developer designs, develops, and maintains software applications using the Java programming language. They are responsible for writing clean, efficient code, debugging and resolving technical issues, and collaborating with other developers, designers, and stakeholders to ensure applications meet user needs. Java Application Developers often work on both frontend and backend components, integrate databases, and ensure the security and scalability of applications. They may also participate in code reviews, testing, and documentation throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a Java Application Developer, and why are they important?

To thrive as a Java Application Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, typically supported by a degree in computer science or a related field. Familiarity with frameworks like Spring or Hibernate, version control systems such as Git, and experience with build tools and IDEs are highly valued, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Excellent problem-solving abilities, effective communication, and strong teamwork skills set top developers apart. These competencies ensure the delivery of robust, maintainable applications and facilitate collaboration in dynamic development environments.
What cities near Holtsville, NY are hiring for Java Application Developer jobs? Cities near Holtsville, NY with the most Java Application Developer job openings:
Java Application Developer jobs near you
Infographic showing various Java Application Developer job openings in Holtsville, NY as of July 2026, with employment types broken down into 76% Full Time, 20% Part Time, 1% Temporary, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $123,396 per year, or $59.3 per hour.
Senior Infrastructure & Reliability Engineer

Senior Infrastructure & Reliability Engineer

KWI

Melville, NY • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 15 days ago

Job description

The Opportunity  
 
If innovation lives in your DNA and AI is already part of how you think, build, and operate - you're going to love what we're doing at KWI. You'll join a small, senior team with a real mandate to design, build, and run the systems that power retail at scale. We move fast, we automate aggressively, and we expect every engineer to multiply their impact with modern tooling. Your fingerprints will be on the platform every day.
 
The Company
 
We are a small team with a big vision: to be the premier provider of cloud technology solutions for retailers. KWI offers a complete, unified commerce solution from a single database, specifically designed to help specialty retailers grow their business. Our portfolio of customers includes Pandora, Bluemercury, Tom Ford and many other globally recognizable brands.  
 
We combine Point of Sale, Merchandising, Order Management, eCommerce, CRM, and Loss Prevention into one cloud-based platform. We are a Values and Mission driven organization, and we believe that if we develop and demonstrate leadership in our strategy, operations, and people, we will continue to drive product innovation and service excellence. 
  • Support and operate our Linux/UNIX systems, VMware infrastructure, CI/CD pipelines, MySQL databases, and containerized workloads that serve our retail clients 247.
  • Own incidents end-to-end: triage alerts, drive root-cause analysis across the application, database, and network layers, and write the post-incident docs that stop recurrence.
  • Tune and operate MySQL at production scale: query analysis, replication topology, backup and recovery, and schema changes against live workloads.
  • Containerize and template services using Docker and infrastructure-as-code patterns to make deployments repeatable, declarative, and boring.
  • Improve observability across the fleet - metrics, logs, traces, and dashboards - so problems are seen before customers feel them.
  • Use modern AI-augmented engineering tools (Claude Code, MCP-based workflows, agentic automation) as a daily multiplier - to operate faster and extend what one engineer can deliver.
  • Document and mentor. Runbooks, design docs, and onboarding material aren't an afterthought here - they're how the team scales.
  • 5+ years operating production Linux/UNIX (RHEL, CentOS/Rocky, Debian/Ubuntu) at meaningful scale.
  • Strong MySQL operational experience - replication, performance tuning, backups, recovery, and schema migrations.
  • Hands-on VMware/vSphere experience in production environments.
  • Java application-tier troubleshooting experience - comfortable reading thread dumps, GC logs, and heap behavior.
  • Solid DevOps fundamentals: Git, CI/CD pipelines, Ansible (or similar configuration management), Terraform (or similar IaC), and Docker.
  • Networking literacy: TCP/IP, DNS, TLS, HTTP/S, load balancing, basic firewalling. You can read a tcpdump and a cert chain.
  • Comfortable scripting in Bash. Python is not required, but you should have a working understanding of programming fundamentals and be able to read, modify, and write straightforward code.
  • Strong troubleshooting instincts and the temperament lead under pressure.
  • Real day-to-day experience using AI-augmented engineering tools (Claude, Cursor, Copilot, MCP servers, agentic workflows) - not just demos.
  • Experience with Datadog or comparable observability platforms.
  • Full Medical, Dental and Vision
  • Annual bonus eligible
  • Free gym in the building 
  • Generous PTO policy
  • Summer Fridays....all year round
  • Tuition Reimbursement
  • Discount from building cafe
  • 401(K) with a 50% company match (up to 6% of employee contribution)
  • Employee Referral Program
  • (1) Volunteer day each year

Our work space

We understand that our teams need flexibility, which is why we follow a hybrid schedule. Our in-office days of Monday, Tuesday and Thursday, and employees are allowed to work remotely on Wednesdays and Friday.

We are also a collaborative group and believe that getting together in person allows our team to do their best work. Together we enjoy monthly events, bagels every Thursday, a state-of-the-art coffee machine, a full snack pantry and many more surprise and delight moments throughout the year.

Our commitment to you

At KWI, we know that cultivating diversity and fostering an inclusive work environment is critical to our impact and success. We create an environment where no individual is advantaged or disadvantaged because of their background. We offer equal opportunity employment regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability status, age, marital status, or protected veteran status.

With a commitment to maintaining a bias-free environment in which harassment is prohibited, we respect cultural diversity and comply with the laws of the places in which we operate. We expect our business partners, suppliers, clients, and all our team members to uphold these commitments.

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