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Java Application Developer Jobs in Fairfield, CT, US
59 java application developer jobs from 41 companies hiring in Fairfield, CT, US.
1w
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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
1mo
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Senior Java Backend Engineer
New York, New York, United States
$140k-$170k/yr OnsiteFull Time
Design, develop, and implement Java-based applications; collaborate with product teams; build scalable, high-quality software; perform code reviews and troubleshoot issues.
Java, Camel, Drools, Kafka, Cloud, Spring, Spring Boot, REST, Linux, Splunk, Loki, Prometheus, Tomcat, Gradle, MQ
3d
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Java Developer (New York, NY, US)
New York, New York, United States
$86k-$127k/yr OnsiteFull Time
10+ YOEJava, Spring Boot, Angular, Microservices, AWS, SQL; 10-18 years financial applications experience; Bachelor's degree; financial domain knowledge.
Java, Spring Boot, Angular, Microservices, AWS, SQL, JDBC, Web Services, Python, Azure
1mo
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Senior Application Developer
New York, New York, United States
$145k-$155k/yr HybridFull Time
5+ YOELead developer for enterprise systems; strong backend and frontend integration; AI/automation experience a plus; 5-7 years in application development; Real Estate/Attractions experience a plus.
Python, C#, Java, C++, Git, APIs, Salesforce, ETL, Tableau, Power BI, LLMs, AI, Automation
2mo
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Application Security Engineer
New York, New York, United States
$110k-$140k/yr HybridFull Time
3+ YOE3+ years in software development and/or application security; secure coding in Python/Java/JavaScript/TypeScript/Go/C#; knowledge of OWASP and cloud basics; experience with security tooling.
Python, Java, JavaScript, TypeScript, Go, C#, OWASP, SAST, SCA, DAST, SBOM, CNAPP, WAF, Terraform, cloud services, container security, secret management
2mo
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Vice President, Application Engineer
New York, New York, United States
$162k-$215k/yr HybridFull Time
8+ YOESenior software engineer with 8+ years of experience; strong Java, Spring, React; distributed systems; leadership and collaboration skills.
Java, Spring Framework, Spring Boot, React, Vue.js, Angular, Git, Maven, Unit Testing, Integration Testing, Relational Databases, Messaging, Cloud (Azure, AWS, Google Cloud), Docker, Kubernetes
3w
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Apps Dev Java Engineer - Vice President - RUTHERFORD
Rutherford, New Jersey, United States
$142k-$213k/yr HybridFull Time
7+ YOE7+ years in designing and developing robust Java applications; strong OO design, Spring Framework, Agile, CI/CD, and cloud/container tech; experience with databases and tooling.
Java, Spring, Hibernate, Docker, Kubernetes, JIRA, BlackDuck, SonarQube, Oracle, MongoDB, Linux, JDBC
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GIS Application Developer
Brooklyn, New York, United States
$68k-$125k/yr OnsiteFull Time
8+ YOE8+ years in web apps/microservices, GIS, cloud, and CI/CD with strong communication.
Java, Python, JavaScript, DotNet, ArcGIS, Carto, GeoServer, AWS, Azure, Docker, Kubernetes, Azure DevOps, Git, Maven, Gradle, IAM, Security
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Application Security Engineer
Quincy or New York or Princeton or Austin or Burlington or Durham or North Quincy or Cambridge or Norwalk or Boston or Manchester or Richmond
$90k-$158k/yr OnsiteFull Time
6+ YOE6+ years in software development/security with DevSecOps/AppSec focus; strong CI/CD automation; cloud (Azure/AWS); SAST/DAST/SCA; container security; CISSP or similar; programming in Java/.Net/Python/Node.js; IaC with Ansible/Terraform/Kubernetes; agile environment.
Java, DotNet, Python, Node.js, Azure, AWS, SAST, DAST, SCA, Kubernetes, Ansible, Terraform, Infrastructure as Code
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Lead Application Security Engineer
New York, New York, United States
$225k-$300k/yr OnsiteFull Time
5+ YOE5+ years in application security; strong software engineering skills (Java, TypeScript); AWS security experience; security tooling in CI/CD; knowledge of SOC 2, HIPAA, GDPR; highly autonomous.
Java, Spring Boot, TypeScript, React, Terraform, AWS
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Principal Application Security Engineer – AI & Agentic Systems
New York, New York, United States
$144k-$288k/yr RemoteFull Time
10+ YOE10+ years designing, building, and securing large-scale applications; 7+ years application security; 7+ years programming in Python, Java, JavaScript, C#, or Go; 5+ years AI-enabled systems; 3+ years cloud, containers.
Python, Java, JavaScript, C#, Go
4d
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System Application Engineer Intern
Lyndhurst, New Jersey, United States
$23-$27/hr OnsiteInternship
0+ YOEPursuing bachelor's in CS or Electrical/Mechanical Engineering; programming in Java/Python/C++; knowledge of electrical principles; control/HVAC knowledge a plus.
Java, Python, C++
4w
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Lead Software Engineer - Java/AWS
New York, New York, United States
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years in application development; experience in large enterprise environments; Java 8+ and REST/microservices; cloud/native development; CI/CD and security.
Java, Spring Boot, REST, Microservices, AWS, CI/CD, Python, Linux shell scripting, Kafka, Oracle, DynamoDB, Cucumber
1mo
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App Dev & Database Engineer
New York City, New York, United States
$132k-$145k/yr OnsiteFull Time
10+ YOEBachelor’s degree in computer science or related field; 10+ years in application development and database administration; strong SQL/NoSQL, Java/C++/Python; APIs; cloud platforms; security.
SQL Server, Oracle, MongoDB, Java, C++, Python, APIs, Cloud (Azure, AWS), Containerization, Security Best Practices
3w
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Senior Application\Middleware Engineer
Charleston or Newark or Bellevue or Plano or Detroit or Nashville or Tulsa or New York
OnsiteFull Time
10+ YOEBachelor’s degree in engineering; 10+ years in a global environment; AWS certifications or equivalent; strong middleware experience (IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, etc.); Windows/Linux server administration; AWS services including S3, EKS, ECS, containers, Kubernetes, Terraform; scripting in PowerShell or Python a ...
AWS, Linux, Windows Server, IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, Terraform, PowerShell, Python, ServiceNow, Microsoft Teams, SharePoint, Kubernetes, EKS, S3, ECS
3w
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SRE Application Support Engineer - AWS
New York, New York, United States
$120k-$165k/yr OnsiteFull Time
6+ YOE5–7 years enterprise app experience; 3–5 years team leadership; DevOps/SRE expertise; AWS; Python/Java; outage and incident management; financial services experience a plus.
AWS, Grafana, Prometheus, Splunk, Kibana, Python, Java, Perl, PowerShell, Unix scripting, JavaScript, React, GraphQL, Django, Celery, PostgreSQL, Golang, ElasticSearch, RabbitMQ, Kafka
4w
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Senior Backend Software Engineer - Application Development
New York, New York, United States
$135k-$200k/yr HybridFull Time
6+ YOE6+ years backend development; API design; distributed systems; CS/Math/Engineering background; proficient in Java/C++/Python/Rust/Go; strong communication.
Java, C++, Python, Rust, Go, Kafka, Cassandra, Elasticsearch, Spark, Docker, Kubernetes, Gradle, GitHub
3w
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Application Development Manager I, VP
New York, New York, United States
$147k-$188k/yr HybridFull Time
5+ YOE5+ years software development in financial services; strong with C#, .NET, Java, Python, VBA; strong SQL and batch processing; derivatives experience; vendor trading platforms (Murex, Calypso, Sophis); leadership and mentoring skills; excellent communication.
C#, DotNet, Java, Python, VBA, SQL, Excel, Word, PowerPoint, Visio, JIRA, Confluence, Murex, Calypso, Sophis
3w
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Senior Lead Data Engineer (Enterprise Platform Technology) (Java, Python, Scala, AWS)
McLean or New York
$230k-$286k/yr OnsiteFull Time
6+ YOE6+ years in application development; 2+ years in big data; 1+ year cloud (AWS/Azure/Google).
Java, Python, Scala, AWS, Redshift, Snowflake, Hadoop, Kafka, Spark, MongoDB, Cassandra, Unix, Linux, SQL, NoSQL, Gurobi
2mo
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Security engineer, application security
New York City or San Francisco
$119k-$210k/yr HybridFull Time
2+ YOE2+ years in application security; experience with SAST/DAST; multiple languages; security tooling; CI/CD; DevSecOps; strong communication; builder mindset.
Python, Java, Go, JavaScript/TypeScript, SAST, DAST, CI/CD, DevSecOps, Vulnerability management
1mo
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Senior Software Engineer, Product
New York or San Francisco or Seattle
$192k-$240k/yr HybridFull Time
7+ YOE7+ years of experience designing, developing, and deploying full-stack applications; scalable backend; SQL/NoSQL; Java/Kotlin/Python; high standards; strong communication.
Java, Kotlin, Python, SQL, NoSQL
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Lead Software Engineer - Country Risk
Jersey City, New Jersey, United States
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years experience in data engineering and application development; strong Java/J2EE; Databricks, Hadoop, AWS Glue; cloud expertise; CI/CD.
Databricks, Hadoop, AWS Glue, SQL, NoSQL, AWS, Java, J2EE, CI/CD
4d
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Software Engineer Full Stack & Application Development II (Full Time) – United States
San Jose or New York or Boston or Knoxville or Austin or Milpitas or Alpharetta or Raleigh (RTP) or Maynard or Fulton or Dallas or Atlanta or Hillsboro
HybridFull Time
0+ YOEBackend in Python/C++/Java; frontend JS/TS; REST/GraphQL/gRPC; SQL/NoSQL; cloud familiarity (AWS/Azure/GCP).
Python, C++, Java, JavaScript, TypeScript, REST, GraphQL, gRPC, SQL, NoSQL, AWS, Azure, GCP, Docker, Kubernetes, Terraform, Ansible, CloudFormation, GitHub Actions, Jenkins, CircleCI, Grafana, Prometheus, Splunk, React, Angular, Vue
2mo
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Senior Digital Engineer / Senior Application Analyst
Elmsford, New York, United States
$116k-$145k/yr OnsiteFull Time
3+ YOEBachelor’s degree and 3–5 years in healthcare IT; strong API, web tech, and Epic/non-Epic experience; Epic certification preferred.
APIs, Interoperability (HL7, CDA, FHIR, XDS.b), HTML, CSS, JavaScript, Java, .NET, Python, Database querying, Certificate management, Monitoring, Logging, Web services, Epic platforms, HL7, FHIR, CDA, XDS.b
2w
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Senior Software Engineer
Austin or Boston or Chicago or Denver or New York or San Francisco
$134k-$212k/yr HybridFull Time
Production-ready, scalable application experience; proficiency in Scala or Java; Elasticsearch; NoSQL/SQL databases; strong learning mindset.
Scala, Java, Elasticsearch, Postgres, Redis, Kafka, AWS, Pulsar, Docker, Kubernetes
1mo
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Fullstack Engineer - Music
New York, New York, United States
RemoteMultiple Commitments Available
Experience building backend and frontend applications; strong Java backend; React and TypeScript frontend; design of APIs and distributed systems; emphasis on clean code and collaboration.
Java, React, TypeScript, APIs, Distributed systems
1mo
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Senior Software Engineer
New York or Austin or Washington
$190k-$235k/yr HybridFull Time
5+ YOE5+ years of full-time software engineering; expert in JS, Python, Java or equivalent; experience building scalable production applications; strong communication; ability to balance speed with quality; fintech interest.
JavaScript, Node.js, React, Python, Java
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Staff Software Engineer, Incentive Offers
New York, New York, United States
$200k-$250k/yr OnsiteFull Time
8+ YOE8+ years building customer-facing applications and distributed systems; proficiency in Scala/Java; experience with AI/ML tooling; strong technical leadership and architecture.
TypeScript, React, Scala, Java, AWS, Git, Copilot, Claude Code, Datadog
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Developer II - Research Informatics & Technology
New York, New York, United States
$85k-$146k/yr HybridFull Time
4+ YOE4+ years software analysis, application support, or software engineering; API and integration platform experience; Linux/server env familiarity; strong analytical, communication, and collaboration.
APIs, Workato, Boomi, Apigee, Python, Java
2mo
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Software Engineer II - (Fullstack / Product Engineering)
New York or Los Angeles
$165k-$200k/yr HybridFull Time
3+ YOE3-5 years of professional software development experience; strong experience building large-scale web applications; proficient in multiple languages; ability to learn new languages and tools.
Python, Java, C#, C/C++, JavaScript
3d
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GenAI Engineer - Senior Associate - 68644791
Dallas or New York City
$65k-$90k/yr OnsiteFull Time
5+ YOE5 years of software development experience; proficient in Python, Java, C/C++, or Go; experience with large-scale Python applications; hands-on experience with AWS services and LLM tooling.
Python, Java, C, C++, Go, AWS ECS, AWS EKS, AWS Lambda, Amazon S3, DynamoDB, Redshift, Step Functions, SageMaker, LLMs, tool-calling, retrieval pipelines, prompt engineering, RAG pipelines, observability, monitoring, validation layers, deterministic fallbacks
2w
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Associate, Quantitative Front Office Engineer (AQR Capital Management, LLC, Greenwich, CT)
Greenwich, Connecticut, United States
$131k-$185k/yr HybridFull Time
3+ YOEBachelor's in Computer Science, Financial Engineering, Operations Research or related quantitative field; 3 years of experience in Java and Python; experience with mathematical optimization, cloud-based distributed micro-services, and quantitative finance applications.
Java, Python, Cloud, AWS
3w
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Platform Support Engineer
New York, New York, United States
$100k-$150k/yr HybridFull Time
5+ YOE5+ years in application support in finance; Bachelor's degree; strong communication; Linux, shell scripting, Java, Python, SQL; familiarity with monitoring tools.
Linux, Shell Scripting, Java, Python, SQL, Nagios, Splunk, Jira, ServiceNow
3mo
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Product Security Engineer
New York City or Washington, D.C. or Boston
$175k-$210k/yr OnsiteFull Time
6+ YOE6+ years in application security or related, strong cloud and software security skills, proficient with security tools, coding in Java/Python/C++, and cloud architectures.
Burp Suite, OWASP ZAP, Python, TypeScript, Java, C++, CloudFormation, Terraform, AWS, GCP, Azure
6d
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Sr. AI Software Engineer (NYC Hybrid)
New York City or Baltimore
$151k-$258k/yr HybridFull Time
5+ YOE5+ years of software engineering experience; cloud-native architectures; containerized microservices; production-grade applications; strong collaboration and product mindset.
Java, Python, JavaScript, Docker, Kubernetes, APIs, CI/CD, Observability
2mo
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Connectivity Software Engineer – VP
New York, New York, United States
$170k-$230k/yr OnsiteFull Time
Design, develop, and improve software; low-latency trading applications; collaboration with product and engineering teams; secure coding and testing practices.
Java, C++, Linux, Distributed systems, Networking, Cloud
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Principle Engineer - Rates and cross asset electronic trading platforms
New York or Iselin or Charlotte
$159k-$305k/yr HybridFull Time
7+ YOE7+ years in engineering and electronic trading; deep experience in rates/fixed income e-trading; high-performance, low-latency trading systems; strong Java (and Python/C++ as applicable); FIX protocol knowledge.
Java, Python, C++
1mo
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Customer Engineer II, Applied AI, Google Cloud
New York or Chicago or San Francisco or Sunnyvale
$149k-$216k/yr OnsiteFull Time
6+ YOEBachelor's degree in CS/Math or related field; 6 years cloud-native architecture; 2 years AI/ML experience; strong stakeholder engagement; coding in Java/C++/Python; experience with AI applications.
Cloud, Artificial Intelligence, Java, C++, Python, Machine Learning
1w
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Staff Engineer, AI Security and Product Security
Salt Lake City or New York City
$187k-$220k/yr HybridFull Time
10+ YOE10+ years in product or application security; strong OWASP/NIST/ISO background; offensive security; secure development; AI security; leadership and communication; CISSP/OSCP/GWAPT desirable.
Metasploit, Burp Suite, Nmap, Wireshark, Python, Java, C++
1mo
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Solutions Engineer (Remote, Northeast) (New York City, New York, US)
New York City, New York, United States
$128k-$160k/yr RemoteFull Time
3+ YOE3 years in observability or application performance management; strong communication and demos; able to travel up to 30%.
HTML, CSS, JavaScript, Java, .NET, PHP, Go, Node.js, Databases, Windows, Linux, AWS, Azure, GCP, Kubernetes, OpenShift, Serverless, CI/CD, Ansible, Puppet, Terraform
HiringCafe market data
Java Application Developer Jobs market signals in Fairfield, CT, 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
59
Hiring companies
41
Fresh sample
56% new in 30d
Salary visibility
89% show pay
Companies appearing in this market
Capital OneCitiJPMorgan ChaseBlackRockBrexCapgeminiCity of New YorkCognizant
Work location mix in visible results
Hybrid: 26Onsite: 25Remote: 4