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Senior Java Engineer Jobs in Philadelphia, PA (NOW HIRING)

Keylent Inc

Java with SCALA

Wilmington, DE · On-site

$49.50 - $64/hr

Keylent Inc is seeking a Senior Java Developer for their Wealth Management Client Channels Technology team. The role involves developing and supporting reactive applications, web services, and user ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE · On-site

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required ... Nice To Have KEY SKILLS - Need a Distributed Systems Engineer with CQRS (Command Query ...

Arka Infotech Inc

Sr.Core Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Interviews can be arranged immediately Sr. Core Java Developer Location: Wilmington, DE Length: 2 years No. of postions: 10 F2F REQUIRED Locals only Keys: Local to the Wilmington/Newark, DE area or ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE · On-site

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required ... Nice To Have KEY SKILLS - Need a Distributed Systems Engineer with • CQRS (Command Query ...

Apton inc

Senior Java Microservices developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Java, J2ee, spring, spring boot, Microservices, API Qualifications Need strong consultant with microservices and spring boot apis Additional Information All your information will be kept confidential ...

Apton Inc

Senior Java Microservices developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Java, J2ee, spring, spring boot, Microservices, API Qualifications Need strong consultant with microservices and spring boot apis Additional Information All your information will be kept confidential ...

ReqRoute,Inc

Java Tech Lead

Wilmington, DE · On-site

Java, Microservices, AWS, Database, Kafka Job Summary Senior Java Full Stack Developer with 12+ years of experience in designing, developing, and deploying enterprise-scale applications using Java ...

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All JobsJava Engineer JobsSenior Java Engineer JobsSenior Java Engineer Jobs in Philadelphia, PA

Senior Java Engineer information

See Philadelphia, PA salary details

$11

$63

$87

How much do senior java engineer jobs pay per hour?

As of Sep 15, 2026, the average hourly pay for senior java engineer in Philadelphia, PA is $63.40, according to ZipRecruiter salary data. Most workers in this role earn between $55.53 and $70.82 per hour, depending on experience, location, and employer.

What is a senior Java engineer?

Senior Java Engineers are experienced software developers who specialize in designing, developing, and maintaining applications using the Java programming language. They often lead development teams, architect solutions, and ensure that software meets both technical and business requirements. Their responsibilities also include code reviews, mentoring junior developers, and optimizing application performance. Typically, they have several years of experience and a deep understanding of Java frameworks and best practices.

What are the key skills and qualifications needed to thrive as a senior Java engineer?

To thrive as a Senior Java Engineer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and a degree in computer science or related field. Experience with frameworks like Spring, Hibernate, build tools such as Maven or Gradle, and familiarity with cloud platforms and CI/CD systems are typically required. Excellent problem-solving abilities, leadership, and effective communication help you guide teams and collaborate with stakeholders. These skills are crucial for delivering robust, scalable software solutions and mentoring junior engineers in complex development environments.

What are some common challenges senior Java engineers face when working on large-scale enterprise applications?

Senior Java Engineers often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining high performance under heavy loads. They are also responsible for implementing robust security practices and integrating new technologies without disrupting existing systems. Effective collaboration with cross-functional teams and mentoring junior developers are crucial aspects of the role, as these responsibilities help maintain code quality and project momentum.

What is the difference between Senior Java Engineer vs Java Developer?

AspectSenior Java EngineerJava Developer
Required CredentialsBachelor's in Computer Science, Java certifications (e.g., Oracle Certified Professional)Bachelor's in Computer Science or related field, Java certifications optional
Work EnvironmentDesigning, developing, and maintaining complex Java applications, often in team leadership rolesDeveloping Java applications, focusing on coding and implementation
Industry UsageUsed across finance, tech, and enterprise sectors for large-scale projectsCommonly employed in software development firms, startups, and tech companies

While both roles involve Java programming, Senior Java Engineers typically handle complex system design, mentorship, and project leadership, whereas Java Developers focus more on coding and implementing features. The senior role often requires more experience and certifications, with a broader scope of responsibilities.

What are popular job titles related to Senior Java Engineer jobs in Philadelphia, PA?

For Senior Java Engineer jobs in Philadelphia, PA, the most frequently searched job titles are:

What job categories do people searching Senior Java Engineer jobs in Philadelphia, PA look for?

The top searched job categories for Senior Java Engineer jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Senior Java Engineer jobs?

Cities near Philadelphia, PA with the most Senior Java Engineer job openings:

Senior Java Engineer jobs near you
Infographic showing various Senior Java Engineer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 87% Full Time, 7% Part Time, and 6% Contract. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $131,869 per year, or $63.4 per hour.

Senior Software Developer / JVM, Low Latency / Trading System

Philadelphia, PA • On-site

Motion Recruitment Partners, LLC
Recruiting and Staffing Services • 1 - 5K employees
Learn more about Motion Recruitment Partners, LLCexternal

$57.75 - $73.75/hr

Other

Posted 13 days ago

Job description

A leading global financial technology organization is seeking a Senior Java Software Engineer to join its Core Markets team in Philadelphia. This team is responsible for building and maintaining a real-time, mission-critical derivatives market system that supports high-volume options trading.
This is not a traditional web application or cloud microservices position. The role is focused on deep, performance-oriented Java engineering where throughput, latency, reliability, and correctness are critical. You'll work on systems where milliseconds matter and where strong understanding of the JVM and low-level software engineering is highly valued.
The Role
You will design, develop, optimize, and maintain high-performance Java systems supporting real-time trading. The ideal candidate enjoys working close to the underlying technology and has a strong understanding of topics such as threading, concurrency, memory management, garbage collection, and performance optimization.
Key Responsibilities
  • Develop high-performance applications using Core Java
  • Design and maintain highly scalable, low-latency trading systems
  • Optimize application performance, memory usage, and system throughput
  • Work extensively with concurrency, multithreading, and JVM internals
  • Analyze and troubleshoot complex performance issues
  • Write highly reliable, maintainable, and thoroughly tested code
  • Collaborate with other engineers to improve system architecture and performance
  • Participate in production support for mission-critical trading systems
  • Explore AI tools and automation opportunities to improve engineering and quality processes
Required Qualifications
  • Strong professional experience with Core Java
  • Strong understanding of Java internals and low-level programming concepts
  • Experience with multithreading, concurrency, and performance optimization
  • Understanding of memory management and garbage collection
  • Experience developing high-throughput, low-latency systems
  • Strong software engineering and problem-solving skills
  • Bachelor's degree in Computer Science or a related field
Preferred Qualifications
  • Experience in trading, financial technology, capital markets, or exchange environments
  • Experience working on real-time or mission-critical systems
  • Experience with JVM performance tuning
  • Interest or experience using AI tools for automation, development, or quality engineering
  • Experience working in environments where reliability and performance are critical
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