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Mid Level Java Developer Jobs in Trenton, NJ (NOW HIRING)

Varsity Tutors

AP Computer Science A Tutor

Trenton, NJ · Remote

$18 - $40/hr

Adapts instruction using code tracing exercises, pair programming activities, and AP-style practice to support students from introductory programming through exam-level Java proficiency. * Effective ...

Scout ET

Java UI Developer

Pennington, NJ

Java UI Developer Long Term Contract Direct Client W2 Position Need GC/GCEAD/USC Location - Pennington, NJ Great communication skills, project management skills, 1. Good level of knowledge of ...

Mondo

Staff Software Engineer

Horsham, PA · Remote

$80 - $90/hr

Mentor junior and mid-level engineers through code reviews and technical guidance * Drive software ... Strong experience with Java and/or Python development * Expertise building RESTful APIs using ...

MDAEdge

Appian Developer

Princeton, NJ · On-site

Responsibilities : • Develop and implement Appian and web-based applications. • Provide technical guidance to mid-level developers as needed. • Work with business users to translate ...

H&H

Mid-Level Civil/Water Resources Engineer

Mount Laurel, NJ · On-site

$78K - $107K/yr

We are offering an exciting opportunity for a Water Resources Engineer with transportation engineering project experience in the Fluvial and Coastal environment to join our Mt. Laurel, NJ, Office. H ...

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Mid Level Java Developer information

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How much do mid level java developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for mid level java developer in Trenton, NJ is $57.71, according to ZipRecruiter salary data. Most workers in this role earn between $50.38 and $65.82 per hour, depending on experience, location, and employer.

What does a typical workday look like for a mid level Java developer?

As a Mid Level Java Developer, your typical workday often involves writing and testing Java code, troubleshooting existing applications, and participating in code reviews. You'll collaborate closely with other developers, QA engineers, and sometimes product managers in agile sprints to ensure features are delivered according to requirements. Daily stand-up meetings are common, as is the use of tools like Jira for tracking tasks. You may also spend time learning new frameworks or best practices, which helps with both personal growth and contributing to more efficient software solutions.

What is a mid level Java developer?

A Mid Level Java Developer is responsible for designing, developing, and maintaining Java-based applications. They typically have 2-5 years of experience and work on coding, debugging, and optimizing software solutions. They collaborate with teams, follow best coding practices, and may mentor junior developers. Their role involves understanding project requirements, integrating APIs, and ensuring application performance. Mid Level Java Developers contribute to both backend and frontend development, depending on the project needs.

What are the key skills and qualifications needed to thrive as a mid level Java developer?

Successful Mid Level Java Developers possess a solid understanding of Java programming, object-oriented design, and commonly used frameworks such as Spring or Hibernate, typically backed by a relevant degree and professional experience. Familiarity with tools like Git, Maven, popular IDEs (e.g., IntelliJ IDEA or Eclipse), and certifications like Oracle Certified Professional Java Programmer (OCPJP) are advantageous. Strong collaboration, problem-solving abilities, and effective communication skills help developers work efficiently within agile teams and cross-functional projects. Mastering both technical and soft skills ensures smooth project delivery, maintainable code quality, and productive teamwork in dynamic software development environments.

What are the most commonly searched types of Java Developer jobs in Trenton, NJ? The most popular types of Java Developer jobs in Trenton, NJ are:
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What cities near Trenton, NJ are hiring for Mid Level Java Developer jobs? Cities near Trenton, NJ with the most Mid Level Java Developer job openings:
Mid Level Java Developer jobs near you
Infographic showing various Mid Level Java Developer job openings in Trenton, NJ as of August 2026, with employment types broken down into 82% Full Time, and 18% Contract. Highlights an 100% In-person job distribution, with an average salary of $120,029 per year, or $57.7 per hour.

Software Developer/Engineer (Mid Level experience)

TechArmy

Philadelphia, PA • On-site

Full-time

Posted 13 days ago

Job description

Position Type: Contract

Location: Philadelphia | Work Mode: Hybrid, minimum 3 days in the office

Interview Schedule: 1st interview, 1-hour, in-person; 2nd interview, 1-hour, in-person

Consultant Requirements – On-Prem LLM & Vector DB Implementation

Core Experience

Hands-on experience deploying open-source LLMs such as Meta Llama 3 and Mistral / Mixtral in on-prem or private environments

Strong proficiency in Python for LLM inference, prompt engineering, and integration

Experience with CPU-based inference, model quantization, and performance tuning

Vector Databases & RAG

Practical experience with open-source vector databases such as Qdrant, Chroma, Milvus, or pgvector

Proven implementation of Retrieval-Augmented Generation (RAG) pipelines

Experience generating and managing embeddings and metadata filtering

Security & Governance

Understanding of data privacy, air-gapped deployments, and enterprise security requirements

Experience implementing access controls and audit logging

Nice to Have

Experience with LangChain or LlamaIndex

Exposure to Rust, Go, or C++ for high-performance services

Familiarity with Docker and Kubernetes for on-prem deployments

Knowledge of inference frameworks (e.g., vLLM, llama.cpp, Hugging Face Transformers)

Prior work in regulated or enterprise environments

Deliverables

Reference architecture and deployment guidance

Working prototype (LLM + vector DB + RAG)

Documentation and knowledge transfer to internal teams