1026 Junior Java Developer jobs in Freeport, NY

New, Posted 8 hours ago

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Principal Trading Engineer (Java, Algo, SOR)

Fidelity Investments

Brooklyn, NY 11206

~ 38 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Highly proficient in ultra-low latency design patterns and optimizing trading systems
Ability to build reliable software that can withstand unreliable environments
Have a learning mindset and can demonstrate versatility in addition to your specialization
Should have the ability to work effectively with both partners and project team members
Hands on experience with low latency messaging products, such as Aeron, Solace or 29West
Have knowledge of Agile methodologies or iterative development processes
An understanding of sequencer architecture
Extensive experience with modern Java using zero GC pattern
Experience with designing APIs, distributed systems, asynchronous workers and resilient messaging services
10+ years of trading engineering experience
Experience using kernel bypass e.g. Solarflare OpenOnLoad
An interest in and experience with cryptocurrencies and a passion for keeping up to date in the space
Strong background in designing and developing low latency trading systems
Bachelor's degree in computer science or related field required
Proficient in SQL and a working knowledge of relational and time series databases
Have the drive and ability to deliver software with a high degree of automation
Knowledge of WebSocket and FIX protocols
Experience in building matching engine, OMS/EMS or exchange-connectivity platform
Proficient with version control systems and can handle development for multiple releases in parallel
Experience in Capital markets or cryptocurrency specifically with exposure to Trading, Algo Trading
Have the spirit and willingness to contribute to org level innovation
Can provide leadership and mentorship across small, agile teams in a very collaborative environment where your ideas are welcome
Solid analytical, communication, and organizational skills
An understanding of microservice architecture and cloud-based deployments

SmartExplore AI is experimental.

New, Posted 20 hours ago

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Senior Java Developer (E-Trading)

Luxoft

New York, NY 10261

New, Posted 20 hours ago

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Java Software Engineer

Beaconfire

New York, NY 10261

$65,000-$80,000/yr

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Entry Level AI Software Engineer

Uptime Crew

Brooklyn, NY 11226

$110,000/yr

~ 38 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Ability to learn quickly and work in an Agile team
Bachelor's degree
Legally authorized to work in the United States without employer sponsorship
Hands-on coding experience through coursework, projects, or internships
Willing to work on-site in one of the listed locations
Java or Python experience (as part of entry level responsibilities: Development in Java, Spring Boot, Microservices, API)
Strong fundamentals in data structures, algorithms, and web or backend basics

SmartExplore AI is experimental.

New, Posted 20 hours ago

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JR Product Development Manager

Adecco

Brooklyn, NY 11210

Bilingual Preferred

New, Posted 11 hours ago

Physician / New York / Permanent / DevOps / SRE Job

Tandym Health

New York, NY 10001

Easy Apply

Salesforce Development Engineer

Canon U.S.A.

Melville, NY 11747

$92,210-$138,080/yr

HybridEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Bachelor's degree in an engineering discipline required, plus 3 - 5 years of related experience, or a Master's degree in the field
Exposure to Experience Cloud, Omni-Channel, Email-to-Case, or Salesforce AI features (Einstein / Agentforce) is a plus, not required
3–5+ years of hands-on Salesforce development or solutions engineering experience
Working knowledge of Salesforce data models, security, and governor limits
Practical experience with: Salesforce Flow
Salesforce certifications (one or more preferred): Platform Developer I
Agile delivery and cross-functional collaboration
Experience supporting Salesforce in a production environment
Practical experience with: Lightning Web Components (LWC)
Strong troubleshooting and analytical skills
Org consolidation, data migrations, or platform clean-up
Familiarity with Salesforce DevOps tools or CI/CD (e.g., Copado, Gearset, Git-based workflows)
Salesforce certifications (one or more preferred): Salesforce Administrator
Experience with Direct and indirect sales channel models
Ability to balance support work and project delivery
The salary range is $92,210 - $138,080 annually
Practical experience with: Apex
Salesforce certifications (one or more preferred): App Builder
Salesforce integrations and APIs