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Java Developer Jobs in Holtsville, NY, US
140+ java developer jobs from 56 companies hiring in Holtsville, NY, US.
2w
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Java Developer
Boston or Tarrytown
HybridFull Time
2+ YOEBachelor’s or master’s degree; 2+ years Java development; lab informatics/LIMS experience preferred; Agilent SLIMS a plus; Jira/story writing.
Java, Jira, SLIMS, Laboratory Information Management System
6d
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Java Lead Software Engineer
New York City, New York, United States
$152k-$215k/yr OnsiteFull Time
7+ YOE7+ years of professional software development; strong Java (11/17+), Spring Boot; CI/CD, cloud native, Agile; financial services domain knowledge.
Java, Spring Boot, CI/CD, OpenTelemetry, AWS, Kubernetes, API Gateway, S3, RDS, DynamoDB, EKS, Lambdas, SQS, SNS, KMS
3mo
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Lead Software Engineer - Java/AWS
Brooklyn, New York, United States
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years of software engineering experience; Java, AWS, Spring Boot; agile methods; enterprise app development.
Java, Spring Boot, AWS, Kafka, EKS, EC2, S3, Lambda, ELB
2mo
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Lead Software Engineer (Java/NextJS) - Peer Insights
Irving or Stamford
$116k-$170k/yr HybridFull Time
5+ YOE5+ years in web app development; strong React, Next.js, Java, TypeScript; UI-focused; secure coding practices; multi-platform design; cloud and containerized pipelines knowledge.
React, Next.js, Java, TypeScript, PL/SQL, ElasticSearch, Valkey
2w
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Application Developer / Engineer I
Atlanta or Wallingford or Louisville or Tampa or Indianapolis or Miami or Wilmington or Mason or Richmond or Des Moines
HybridFull Time
3+ YOEBA/BS in IT or CS; 3+ years in application/system development; .NET, Java, Angular/React; API development; SQL Server; MongoDB; cloud concepts; on-call support.
.NET, Java, Angular, React, APIs, SQL Server, MongoDB, Cloud
4d
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Backend Software Developer
Greenwich, Connecticut, United States
HybridFull Time
4+ YOEBachelor's degree in computer science or related field; 4+ years in backend development with Java; experience with Spring, Oracle, REST, Python; financial services experience preferred.
Java, Spring, Spring Boot, JDBC, Oracle, PL/SQL, REST, JMS, ActiveMQ, Git, Python, Shell Scripting
1w
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Sr. Software Engineer
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
5+ YOEDesign, develop, maintain APIs/integrations; 5+ years production software; proficient in C#, Java, or JavaScript/Node.js; strong problem-solving and communication.
C#, Java, JavaScript/Node.js, AWS, Code assistants (Copilot/Claude)
2mo
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Senior Firmware Engineer - Audio & Video Streaming
Plano or Rockleigh
$108k-$174k/yr OnsiteFull Time
5+ YOE5-7 years in firmware development for embedded Linux/Android; C/C++/Java; networking protocols; Android apps/services; video/graphics systems; streaming protocols.
C/C++, Java, Embedded Linux, Android, Android Apps and Services, Linux/Android, Networking protocols (TCP/UDP/HTTP), RTP/RTSP, Video/Graphics (VAAPI, GStreamer, FFmpeg, OpenMAX, OpenGL), Android framework customization
1mo
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Software Engineer (AI/ML Interface Development)
San Diego or Nashua or Greenlawn or Durham
$92k-$157k/yr HybridFull Time
4+ YOEBS in CS/Software Engineering; 4+ years in software development; strong AI/ML interface experience; proficiency in Python, Java, C++; API/microservices; experience with LLMs and vector databases; Docker/Kubernetes; CI/CD; US Secret Clearance.
Python, Java, C++, Docker, Kubernetes, APIs, CI/CD, LLMs, vector databases
3w
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Sr. Android Engineer, CNBC
Englewood Cliffs, New Jersey, United States
$155k-$175k/yr HybridFull Time
5+ YOE5+ years Android development; Kotlin/Java; MVVM/ Clean Architecture; Kotlin Coroutines/RxJava; video streaming (HLS/DASH/DRM); REST/GraphQL; CI/CD; Android Studio tooling.
Kotlin, Java, Jetpack, MVVM, Clean Architecture, Jetpack Compose, HLS, DASH, DRM, REST, GraphQL, Kotlin Coroutines, RxJava, Android Studio, CI/CD, Firebase, Bitrise, Jenkins, Dagger, Hilt, Koin
3mo
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Software Development Engineer II (Bethpage, NY, US, 11714)
Bethpage, New York, United States
$100k-$165k/yr OnsiteFull Time
3+ YOEBachelor’s in CS; 3-5 years in software development, automation and tools; Java & C; cloud (GCP or AWS); DevOps; CI/CD; test automation.
Java, C, Google Cloud, Amazon Web Services, CI/CD, DevOps tools, Test automation
6d
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Senior Software Engineer I
San Francisco or Denver or New York City
$200k-$230k/yr HybridFull Time
3+ YOE3–5+ years of OO development (TypeScript, C#, Java); Python for data tasks; React + Tailwind; data architectures; private markets data; CI/CD; cloud platforms; Git; Agile.
TypeScript, C#, Java, Python, React, TailwindCSS, PostgreSQL, AWS, Azure, GCP, Git, GitHub, Kafka, WebSockets, JIRA, CI/CD, Data orchestration, Docker, Kubernetes
1mo
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R&D Staff Software Engineer
Pittsburgh or Melville
$108k-$173k/yr OnsiteFull Time
8+ YOE8+ years mainframe software development; JavaScript/TypeScript, Java, C/C++, Node.js; Linux/Unix; VS Code extensions; CLI; Git; Agile/Scrum.
JavaScript, TypeScript, Java, C/C++, Node.js, VS Code, AG Grid, React
2mo
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AI Engineer
Plano or Chicago or Purchase
$106k-$178k/yr HybridFull Time
Bachelor’s or Master’s in CS/AI/DS. Proven AI project leadership; strong coding in Python/Java/C++; experience with GenAI, Agentic AI, cloud deployment (AWS/Azure/GCP); capable communicator and cross-functional collaborator.
Python, Java, C++, Langchain, CrewAi, MCP, A2A, AWS, Azure, Google Cloud
2mo
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Software Engineer II
Brooklyn or United States
$105k-$125k/yr RemoteFull Time
2+ YOE2-4 years software engineering; full-stack; Python/SQL; Java or modern SPA; REST; strong problem solving.
Python, SQL, Java, React, Vue, Angular, REST, AWS, S3, MongoDB, DBT, Snowflake
1mo
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Portfolio Analytics Engineer - Vice President
Greenwich, Connecticut, United States
$165k-$185k/yr OnsiteFull Time
7+ YOE7+ years software engineering, expert in Java, Python production, distributed microservices, observability, and finance interest.
Java, Python, Elasticsearch, Redis, RabbitMQ, PostgreSQL, MS SQL Server
1mo
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Software Engineer
Danbury, Connecticut, United States
OnsiteFull Time
8+ YOE10+ years in object-oriented software design; 8+ years in C++ development; real-time control for mechatronics; RTOS (RTX); Agile experience; BS/MS in CS or related; strong problem solving and communication.
C++, Java, C#, .NET, RTX, SQLServer, Oracle
6d
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Sr. API Engineer
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
5+ YOE5+ years production software development; REST/GraphQL APIs; AWS serverless; CI/CD; third-party integrations; AI tooling familiarity.
AWS, API Gateway, DynamoDB, SQS/SNS, REST, GraphQL, Node.js, Java, C#, GitHub Actions, Azure DevOps, Git, GitHub Copilot, Claude
5d
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Software Engineer III - Full Stack
Brooklyn, New York, United States
$100k-$145k/yr HybridFull Time
4+ YOE4+ years programming experience; strong Java/ReactJS; OOP and design patterns; shipping large software projects; quick learner; team collaboration.
Java, ReactJS, Redis, JavaScript, RabbitMQ, MySQL, MongoDB, Kotlin, SpringBoot, Splunk
1w
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Software Engineer - Early Career (USA)
Stamford, Connecticut, United States
$130k-$175k/yr OnsiteFull Time
BS/MS in Computer Science or related STEM; strong data structures, algorithms, OOP; proficient in C++, C, Python, Java, or Rust; Linux familiarity; strong problem-solving and quick learning in a collaborative team.
C++, C, Python, Java, Rust, Linux
1w
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Sr. Software Engineer
New York City, New York, United States
$170k-$205k/yr HybridFull Time
Experience building AI platforms with LLMs, production AI features, and full-stack development (React, GraphQL, server-side languages). Collaborates with legal/compliance; mentorship of engineers.
React, GraphQL, Ruby, Java, TypeScript, C#, Python
1d
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Software Engineer II
Glendale or New York or Seattle
$118k-$165k/yr HybridFull Time
3+ YOE3+ years software engineering; backend development; distributed systems; AWS; Kubernetes; observability; strong collaboration.
Go, Java, Python, Node.js, AWS, Kubernetes, Grafana, Prometheus, OpenTelemetry, Datadog, New Relic, OpenSearch
1mo
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Software Engineer - Cumberland/FICCO Tools Engineering
Greenwich, Connecticut, United States
$175k-$225k/yr OnsiteFull Time
2+ YOE2+ years in Python/Java/C++, experience shipping production systems, strong customer-facing skills, Linux-based high-throughput systems, degree in CS/Math/Physics/Engineering.
Python, Java, C++, TypeScript, Linux
1mo
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Software Engineer- Programming Knowledge Onsite Great River, NY
Great River, New York, United States
$70k-$117k/yr OnsiteFull Time
Bachelor’s degree or equivalent; strong Java, C#, .NET; SQL; cloud SaaS; onsite in Great River NY; ability to learn; on-call.
Java, C#, .NET, SQL, Cloud SaaS, Relational databases
2mo
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Senior Software Engineer - Intelligent Document Processing
Hartford or Danbury or Charlotte or New York or Columbus or Chicago
$137k-$206k/yr HybridFull Time
5+ YOE5+ years software engineering; strong Python and .NET or Java; cloud-native AWS; CI/CD and infrastructure-as-code; distributed systems.
Python, .NET, Java, AWS, Docker, Kubernetes, CI/CD, Infrastructure as Code, OCR, NLP
1w
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Software Engineer, Macro Technology
New York City or Stamford
OnsiteFull Time
6+ YOE6+ years software engineering; BS in CS/Engineering/Math; 5+ years backend (C#/Java); 3+ years frontend (React); 5+ years SQL; 3+ years in financial trading tech; experience with AI tooling; US work authorization; based in Stamford, CT or New York City onsite.
C#, Java, React, SQL, APIs, AI tools, Cloud
3w
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Software Developer - Front-Office Trading ( AVP
Burlington or Boston or Stamford or Clifton or Princeton or Berwyn
$90k-$158k/yr OnsiteFull Time
5+ YOEJava and C# programming; XML/WS; ETL tools; database knowledge; travel 50-80%; financial services/consulting experience preferred.
Java, C#, XML, Web Services, ETL, Kettle, Talend, Tomcat, Perforce, Oracle, MS SQL Server, Perl, Crystal Reports, SQL Server Reporting Services, MQ Series, MSMQ, SonicMQ, Open JMS, Kafka, XML/XSLT
2mo
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Software Engineer III - VxWorks
Bohemia, New York, United States
$90k-$115k/yr OnsiteFull Time
4+ YOEDevelop embedded software for VxWorks; BSP kernel/driver work; GUI tools; 4+ yrs experience; C/C++, Windows/Linux; U.S. citizenship required.
C, C++, C#, Java, Windows, Linux, PetaLinux, VxWorks, Yocto, Buildroot, JTAG, Oscilloscope, Multimeter, Logic analyzer
1mo
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AVP, Product Engineer - AML
Chicago or Stamford or Alpharetta or Dallas or New York City or Charlotte or Cincinnati
$100k-$170k/yr HybridFull Time
3+ YOEDevelop, enhance AML products; 3+ years software engineering; Java/Python/C#; AML knowledge and collaboration with compliance teams.
Java, Python, C#, AML software platforms, SQL/NoSQL, APIs, ETL tools
1d
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Senior Software Engineer, Zaidyn
Chicago or New York or Princeton
HybridFull Time
3+ YOEBachelor’s or Master’s in CS/EE/math or related; 3-5 years software product development; full-stack SaaS experience; strong APIs, SOA/REST; English fluency.
Java, REST, SOA, Jenkins, Hibernate, Maven, TeamCity, APIs, OOP, DI/IoC, AWS
6d
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Senior Software Engineer, APIs
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
5+ YOE5+ years production software development; RESTful/GraphQL APIs at scale; AWS serverless; AI tooling; third-party integrations; CS/SE degree or equivalent; Shelton, CT location.
AWS, API Gateway, DynamoDB, SQS, SNS, Node.js, Java, C#, REST, GraphQL, GitHub Copilot, Claude, GitHub Actions, Azure DevOps
1mo
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Jr. Software Engineer - AI & Prompt Engineering (Contract to Perm)
New York, New York, United States
$40-$60/hr OnsiteContract, Full Time
Bachelor’s degree in Computer Science or related field; strong CS fundamentals; proficiency in at least one language (Python/JavaScript/Java); familiarity with APIs, debugging, testing, and version control; exposure to AI/prompt engineering.
Python, JavaScript, Java, APIs, Git
2d
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Software Engineer (Development & QA Automation) (Hybrid - Newark, NJ or NYC)
Edgewood or Newark or New York City
$90k-$950k/yr HybridFull Time
Bachelor's degree in Computer Science or equivalent; experience with Java, Python, Perl, Linux, scripting, Selenium, and Cucumber; automated testing experience; AGILE knowledge.
Java, Python, Perl, Linux, Shell scripting, Selenium, Cucumber
1w
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AI Full Stack Engineer Sr Stf
Bethesda or Dover or Fort Worth or Highlands Ranch or King of Prussia or Moorestown or Orlando or Stratford
RemoteFull Time
15+ YOESenior AI/ML engineer with full-stack development, cloud deployment, and data/AI experience; US citizenship required; Bachelor's or higher in CS/IT/AI.
Python, CI/CD, GitLab, Jenkins, ArgoCD, RDS, Redshift, Snowflake, LLMs, MLOps, GenAI, API Development, Java, C++
2w
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Principal Engineer-Test
Hauppauge, New York, United States
$91k-$232k/yr OnsiteFull Time
10+ YOEBachelor’s/Master’s in Computer/Electrical Engineering or Computer Science; 10+ years in semiconductor IC development; strong digital/analog knowledge; experience with ATE hardware/software; programming in C/C++/Java; familiarity with version control and lab equipment.
ATE hardware/software (Diamond X, J750, Advantest v93k), C, C++, Java, GIT, SVN, Perforce, Linux, Windows, Oscilloscopes, Bench hardware
17h
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GIS Application Developer
Brooklyn, New York, United States
$68k-$125k/yr OnsiteFull Time
8+ YOE8+ years in GIS web apps and microservices; Java, ArcGIS, Cloud (AWS/Azure); containers; CI/CD; strong communication; multi-agency government experience preferred.
Java, JavaScript, Python, C#, Esri ArcGIS, Carto, GeoServer, AWS, Microsoft Azure, Azure AKS, Azure LogicApps, SQL Server, APIM Gateway, Docker, Kubernetes, CI/CD tools (Azure DevOps, Git, Maven/Gradle)
8h
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Data Engineer
Work From Home, /, United States
$90-$100/yr RemoteFull Time
4+ YOEMinimum high school diploma and 4+ years in data engineering; experience with OOP, SQL, data modeling; preferred Bachelor's in CS/IT; experience with Python/Java/Kafka; HIPAA awareness.
Python, Java, Kafka, SQL, Spark, Hadoop, MongoDB, Cassandra, Docker, Kubernetes, Tableau
3w
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Software Engineer
Great Neck, New York, United States
$120k-$160k/yr OnsiteFull Time
3+ YOE3+ years software engineering; BS in CS/SE; proficient in Python, C/C++, Rust, Go, or Java; shipping software experience; ML workflows; Unix/Linux; ITAR citizen.
Python, C/C++, Rust, Go, Java, Unix/Linux, Machine Learning frameworks
4d
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Software Development Engineer in Test (SDET)
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
4+ YOE4–7 years in software testing/automation; strong coding skills; familiarity with test automation frameworks; REST API testing; CI/CD experience.
Programming languages, Test automation frameworks, Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#, CI/CD
4d
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Senior Software Engineer, Calibration, Automation & Tools
New Haven, Connecticut, United States
$124k-$187k/yr HybridFull Time
5+ YOEBS or higher in CS/EE/Math/Physics; 5+ years full-stack dev; strong Python and at least one high-level language; frontend and backend proficiency; microservices, REST APIs, SQL; AWS, CI/CD; testing; excellent communication.
Python, Java, Go, C, C++, React, Angular, Vue.js, PostgreSQL, Oracle, microservices, RESTful APIs, Git, AWS, CI/CD, unit testing, integration testing, end-to-end testing
HiringCafe market data
Java Developer Jobs market signals in Holtsville, NY, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
140+
Hiring companies
56
Fresh sample
58% new in 30d
Salary visibility
88% show pay
Companies appearing in this market
SubwayJPMorgan ChaseOptimumEnergyHubSynchronyThe HartfordTrexquantAQR Capital Management
Work location mix in visible results
Onsite: 37Hybrid: 25Remote: 7