Lead Developer / Java / Onsite

Kelly Services; Philadelphia (Philadelphia County); On-site; USD 160,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Vacation time

Equity

401(k) + Company Match

Wellness incentives

Job summary

Motion Recruitment Partners is seeking a Lead Java Engineer for a leading financial services firm in the Greater Philadelphia area. You will work on mission-critical, real-time infrastructure using 100% Core Java, with a focus on JVM internals, concurrency, and high-throughput, low-latency performance.

The role requires 10+ years in Core Java, a BS in CS, and leadership abilities. On-site position with strong compensation, comprehensive benefits, and clear growth paths; bonus eligibility and

Qualifications

• 10+ years of experience in Core Java development.
• Deep understanding of JVM internals.
• Strong command of multithreading and concurrency.
• At least a BS in Computer Science or related field.

Responsibilities

• 100% Java development.
• Hands-on leadership duties in a high-throughput, low-latency environment.

Skills

Core Java

JVM internals

Multithreading

BS in Computer Science

Education

BS in Computer Science or related field

MS/PhD

Job description

$160000 - $180000

A leading financial services firm is hiring a Lead Java Engineer to join their engineering team. You must currently reside in the Greater Philadelphia area to be considered.

They are seeking deep expertise in Core Java to work on mission-critical, real-time infrastructure. This is not a framework, web services, or cloud role — candidates with that background will not be the right fit. To succeed here, you need a strong command of JVM internals, concurrency, and performance-focused engineering in high-throughput, low-latency environments. This is an environment where technical depth is genuinely valued and rewarded, with strong compensation, excellent benefits, and clear pathways for growth.

Required Skills & Experience

• 10+ years of experience in Core Java development
• Deep understanding of JVM internals
• Strong command of multithreading and concurrency
• At least a BS in Computer Science or related field

Desired Skills & Experience

• Industry experience
• MS or PhD

What You Will Be Doing

Tech Breakdown

• 100% Java

Daily Responsibilities

• 90% Hands On
• 10% Leadership Duties

The Offer

• Bonus eligible

You will receive the following benefits:

• Medical, Dental, and Vision Insurance
• Vacation Time
• Equity
• 401(k) + Company Match
• Wellness Incentives

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP’s Employment Accommodation policy. Applicants need to make their needs known in advance.