Java Developer Jobs in Cos Cob, CT, US

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Java Developer

Boston or Tarrytown

HybridFull Time

Zifo: Provides scientific informatics services for life sciences R&D organizations.

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

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Java Developer

New York City, New York, United States

$77k-$140k/yr OnsiteFull Time

City of New York: Provides municipal services and administration for New York City.

Proficient in Java, Java EE; experience with MVC/ORM, web services, SQL; Agile; strong problem-solving and collaboration.

Java, Java EE, MVC, ORM, SQL, Ant, Web Services, APIs, Agile

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Junior Java Developer

New York, New York, United States

$87k-$128k/yr HybridFull Time

Mitsubishi UFJ Financial GroupNew York Stock Exchange: MUFG: Global financial group providing diverse banking and investment services.

2+ YOE1-3 years programming experience; strong Java development; SQL/relational databases; knowledge of Spring/Spring Boot, REST APIs, CI/CD; Unix/Linux; good analytical and problem-solving skills.

Java, JUnit, SQL, Oracle, SQL Server, Linux, Spring, Spring Boot, REST, JMS, MQ, Hibernate/JPA, Apache Camel, React, JavaScript, HTML/CSS, Git, Maven, Jira, Confluence, AWS, Azure, Snowflake, Veracode, FIX

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Principal Java Developer

New York, New York, United States

$120k-$200k/yr HybridContract

RE Partners: Providing technology consulting and digital transformation services for enterprise clients.

10+ YOE10+ years in Java development; strong Core Java and SpringBoot; low-latency, high-throughput backend experience; OpenShift/Kubernetes, AWS, MongoDB; REST/microservices; collaborative, opinionated culture.

Java, MongoDB, Spring, OpenShift, Kubernetes, AWS, REST, Microservices

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Java Developer, Associate, P2

New York, New York, United States

$90k-$140k/yr OnsiteFull Time

Morgan StanleyNYSE: MS: Provides global investment banking, wealth management, and advisory services.

5+ YOE5+ years Java development; Spring; Web services; SQL DB2/SQL Server; Agile/DevOps; Bachelor’s/Master’s in Engineering

Java, Spring, Web Services, XML, JSON, REST, SOAP, SQL Server, DB2, JIRA, ALM, Agile, DevOps

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Java Developer - Manager - 68644931

Dallas or New York City

$83k-$113k/yr OnsiteFull Time

CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.

4+ YOE4+ years of hands-on Java/J2EE development; strong exposure to Spring, REST, Hibernate; production support; multi-tier environments; CI/CD experience; on-site in Dallas or New York.

Java, Spring, Spring Boot, Spring MVC, Spring Cloud, Hibernate, JSP, Servlets, JDBC, REST, JavaScript, HTML, Linux, Autosys, Jenkins, Git, Jira, ServiceNow, CI/CD

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Senior Java Engineer

Coral Springs or Berkeley Heights

$90k-$158k/yr OnsiteFull Time

FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.

8+ YOESenior Java developer with microservices, REST APIs, DevOps, and cloud experience; 8+ years in Java, 6+ years with Spring, 4+ years with DevOps and databases; bachelor's degree in CS or related field.

Java, Spring, Spring Boot, Spring Cloud, Spring Security, Spring Data, REST, Swagger, Feign Client, JWT, RabbitMQ, React, Kubernetes, Azure, CI/CD, Docker

1mo

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1mo

Java Developer (New York, NY, US)

New York City, New York, United States

$68k-$109k/yr OnsiteFull Time

CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.

5+ YOESenior Java Developer with Spring Boot, DB2, REST APIs, SDLC, microservices, cloud, and messaging experience.

Java, Spring Boot, DB2, REST, Spring Data JPA, Spring Security, Spring Web Flux, Kafka, RabbitMQ, AWS, Azure, GCP, CI/CD, Oracle, PostgreSQL

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Java Developer with Node.js, HTML/CSS

Phoenix or New York City

OnsiteContract

CTG: Provides IT services and digital transformation solutions to businesses.

3+ YOEJava development with Node.js, HTML/CSS, GraphQL; strong front-end skills; able to onboard quickly; 11-month contract.

Node.js, Java, HTML, CSS, JavaScript, GraphQL

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Lead Java Developer- Vice President

New York, New York, United States

$142k-$213k/yr HybridFull Time

CitiNYSE: C: Providing global banking, investment, and wealth management services.

Senior Java developer with Core Java/J2EE/Spring; Python scripting; Capital Markets front office experience; AWS migration; microservices, containers; observability; strong communication.

Java, J2EE, Spring, Python, AWS, Docker, Kubernetes, OpenShift, Kafka, JMS, gRPC, ELK, Prometheus, Grafana, Relational Databases, NoSQL, Linux

1mo

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1mo

Senior Java Developer

Chicago or Morristown or Wilmington

$79k-$138k/yr HybridFull Time

W. R. BerkleyNYSE: WRB: Provides commercial property, casualty, and specialty insurance and reinsurance.

4+ YOE4+ years enterprise Java, Guidewire InsuranceNow experience, REST/SOAP APIs, SQL, JavaScript/jQuery/Velocity; full SDLC; Agile/Waterfall; BA/Business stakeholder collaboration.

Java, Guidewire InsuranceNow, REST API, SOAP API, SQL, JavaScript, jQuery, Velocity

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Java Developer - Manager - 68644931

Dallas or New York

$83k-$113k/yr OnsiteFull Time

CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.

4+ YOE4+ years Java/J2EE experience; Spring, REST, Hibernate; CI/CD; production support; UNIX/Linux; Tomcat/JBoss/WebSphere/WebLogic; CI/CD tooling (Git, Jenkins, Autosys); onsite in Dallas or New York

Java, Spring Framework, REST, Hibernate, JSP, Servlets, JDBC, JavaScript, Git, Jenkins, Autosys, Crontab, Tomcat, JBoss, WebSphere, WebLogic

1mo

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1mo

Senior Java Backend Engineer

New York, New York, United States

$140k-$170k/yr OnsiteFull Time

Publicis GroupeEuronext Paris: PUB: Global advertising and digital transformation agency holding.

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

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Principal Java Engineer - Digital Assets (Blockchain)

Jersey City or Durham

$107k-$216k/yr HybridFull Time

Fidelity Investments: Provides investment management, retirement planning, and brokerage services.

8+ YOE8+ years in OO software development (Java); CS/related degree; blockchain knowledge; strong Java services and SQL; microservices, CI/CD; AWS/Docker; testing with JUnit; experience with asynchronous messaging (SQS/SNS) is a plus.

Java, SQL, JUnit, Jenkins, AWS, Docker, SQS, SNS

1mo

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1mo

Senior Java Engineer

Jersey City, New Jersey, United States

$150k-$225k/yr RemoteFull Time

Tradeweb MarketsNasdaq: TW: Operates electronic marketplaces for fixed income and derivatives trading.

5+ YOE5+ years Core Java; Spring Boot, Kafka, Redis; Typescript & Node.js; microservices; REST/WebSocket; Docker; RDBMS; strong multi-threading and distributed systems experience.

Java, Spring Boot, Kafka, Redis, Typescript, Node.js, REST, WebSocket, Docker, RDBMS, Microservices

2mo

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2mo

Java Backend Engineer - Aladdin Engineering, Associate

New York, New York, United States

$145k-$162k/yr HybridFull Time

BlackRockNYSE: BLK: Provides global investment management and financial technology services.

3+ YOEStrong Java backend development experience; Spring Framework; microservices; distributed systems; cloud and DevOps practices.

Java, Spring Framework, Hibernate, Spring Boot, Kafka, Maven, Git, Unit Testing, Integration Testing

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Java Lead Software Engineer

New York City, New York, United States

$152k-$215k/yr OnsiteFull Time

JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.

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

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Java Developer (Hybrid- Flexible Options)

Edgewood or New York or Newark or Coppell

$125k-$140k/yr HybridFull Time

BroadridgeNYSE: BR: Provides technology and infrastructure for global financial services.

8+ YOE8+ years Java development; Spring Framework/Spring Boot; React; Apache Kafka; AWS; PostgreSQL; Oracle PL/SQL; Docker; Kubernetes; CI/CD (Jenkins, Maven/Gradle); Git/Nexus; JUnit/Mockito/Cucumber/Karate; TDD/testing; Agile.

Spring, Spring Boot, React, Apache Kafka, AWS, PostgreSQL, Oracle PL/SQL, Docker, Kubernetes, Jenkins, Maven, Gradle, Git, Nexus, JUnit, Mockito, Cucumber, Karate, API Gateway, EKS, ECS, S3

2mo

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2mo

Lead Java Trading System Engineer

New York, New York, United States

$114k-$190k/yr OnsiteFull Time

London Stock Exchange GroupLondon Stock Exchange: LSEG: Operates stock exchanges and provides financial market data services.

5+ YOE5+ years software engineering; strong Java (JVM, multithreading); API development, Docker/Kubernetes; Linux; PostgreSQL; Git; Gradle/Maven; Agile; low-latency development.

Java, Docker, Kubernetes, Git, Gradle, Maven, Linux, PostgreSQL, Spring, Spring Boot, Redis, Apache Kafka

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Senior Associate - Java Developer (New York, NY, US)

New York, New York, United States

$100k-$143k/yr HybridFull Time

New York Life: Provides life insurance, retirement income, and investment solutions.

5+ YOE5-7 years experience; Java 8+, Spring Boot; Angular (2+); AWS (EC2, S3, RDS, Lambda); REST APIs; PostgreSQL; Git; CI/CD; Docker/Kubernetes is a plus; cloud-native development.

Java, Spring Boot, Angular, AWS, PostgreSQL, Git, CI/CD, Docker, Kubernetes

1mo

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1mo

Full Stack Java Developer

Woodbridge Township, New Jersey, United States

$110k-$129k/yr OnsiteFull Time

FreshDirect: Online grocery store delivering fresh food and prepared meals.

10+ YOE10+ years with Java/J2EE, Spring/JPA/JMS, REST APIs, HTML/JS/CSS, Linux/Solaris, CI/CD, cloud (GCP), security; strong communicator.

Java, Spring, JPA, JMS, REST APIs, HTML, JavaScript, CSS, Linux, Solaris, CI/CD, GCP, PostgreSQL

1mo

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1mo

Senior Java Backend Engineer

New York, New York, United States

$140k-$170k/yr HybridFull Time

Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.

5+ YOEHands-on Java software engineer with experience in microservices, cloud, and distributed architectures; strong debugging and performance optimization skills.

Java, Camel, Drools, Kafka, Cloud, Spring, Spring Boot, REST, Linux, Relational Databases, SQL Server, DB2, Multi-threaded Programming, Tomcat, Gradle, MQ, Splunk, Loki, Prometheus

2mo

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2mo

Java Lead Software Engineer

New York, New York, United States

$152k-$215k/yr OnsiteFull Time

JPMorgan ChaseNYSE: JPM: Global financial firm providing banking and investment management services.

5+ YOE5+ years software engineering experience; strong Java/Spring Boot; database and cloud familiarity; SDLC involvement; code reviews and performance tuning.

Java, Spring Boot, Spring Cloud, PostgreSQL, SQL, Kafka, Splunk, Dynatrace, Postman, AWS, Jira, Confluence, IntelliJ IDEA, Maven, Git, Jenkins, Sonar, Artifactory, AI-powered code assistants

1mo

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1mo

Senior Software Engineer, Java

New York, New York, United States

$176k-$215k/yr OnsiteFull Time

CLEARNYSE: YOU: Secure biometric identity platform for travel and venue access

6+ YOE6+ years in Java software development; cloud-based app development; AWS; Docker/Kubernetes; GitHub and Argo; strong communication and mentorship.

Java, Kafka, Postgres, AWS, Docker, Kubernetes, GitHub, Argo

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Lead Foreign Exchange Ai Java Software Engineer

New York or Iselin or Charlotte

$159k-$305k/yr HybridFull Time

Wells FargoNYSE: WFC: Global provider of banking, investment, and mortgage financial services.

5+ YOE5+ years software engineering; FX/electronic trading experience; Java/Python/C++; leadership and collaboration skills; experience with AI-assisted development

Java, Python, C++, FIX, LLM-based tools, MCP-based integrations

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Senior Java Acceleration Engineer, Vector Search and Database Acceleration

New York, New York, United States

$224k-$357k/yr RemoteFull Time

NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.

12+ YOE12+ years of Java experience; BS or MS in CS/CE; experience with vector databases and NoSQL; GPU/CUDA/C++ knowledge; strong problem-solving and communication.

Java, CUDA, C++, Lucene, Elasticsearch, OpenSearch, MongoDB, Solr, Milvus, Pinecone, LanceDB

1mo

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1mo

Software Engineer III- Java

Jersey City, New Jersey, United States

$103k-$180k/yr OnsiteFull Time

Bank of AmericaNYSE: BAC: Provides global banking, investment, and wealth management services.

7+ YOE7+ years of experience in Java, Spring, low-latency design, messaging (Kafka/AMPS), back-end Java, databases, CI/CD, distributed services, and strong problem solving.

Java, Spring, Kafka, AMPS, CI/CD

21h

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21h

Associate Software Engineer - Java

Hartford or Danbury or Charlotte or Morristown

$70k-$105k/yr HybridFull Time

The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.

1+ YOE1–3 years software development; Java/J2EE; Spring Boot REST APIs; Hibernate/JPA; PostgreSQL; NoSQL exposure; AWS/GCP; REST/SOAP; Agile; Bachelor's degree in CS/Engineering or equivalent; US work authorization.

Java, J2EE, Spring Boot, Hibernate, PostgreSQL, NoSQL, AWS, GCP, REST, SOAP, GitHub, Jenkins

2mo

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2mo

Senior Software Engineer, Java (Domains)

New York City, New York, United States

$129k-$232k/yr HybridFull Time

Squarespace: Platform for creating websites and managing online businesses.

7+ YOE7+ years backend development; 4+ years Java and Spring; experience with relational/NoSQL databases; Kafka/ Pub/Sub / AMQP; domain knowledge a plus.

Java, Spring, CockroachDB, MongoDB, Kafka, Pub/Sub, AMQP

1mo

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1mo

Sr. Software Engineer - Java / SpringBoot / AWS

Scottsdale or San Francisco or Chicago or New York

$118k-$152k/yr HybridFull Time

Early Warning Services: Operates payment and risk solutions for the financial industry.

5+ YOE5+ years Java/C#/C++ development; Java SpringBoot; AWS; REST/SOAP; SQL; Unix/Linux; OO design; TDD/BDD; Agile; security awareness.

Java, SpringBoot, AWS, REST, SOAP, SQL, NoSQL, XML, JSON, YAML

1mo

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1mo

Sr. Full Stack Java Developer (100% Onsite / FTE / Coderpad) (Jersey City, NJ, US)

Jersey City, New Jersey, United States

OnsiteFull Time

NTT DATA: Provides global IT consulting, system integration, and managed services.

5+ YOE5+ years Java/J2EE, Spring, Spring Boot, Angular/React, REST, microservices; strong data structures/algorithms; UNIX/Linux; SQL; Agile; GIT; Gradle/Maven.

Java, J2EE, Spring, Spring Boot, Angular, React, REST, Microservices, Gradle, Maven, Git, Linux, Unix, SQL

2mo

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2mo

Lead Software Engineer (Java/NextJS) - Peer Insights

Irving or Stamford

$116k-$170k/yr HybridFull Time

GartnerNYSE: IT: Provides research and advisory services for business leaders.

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

1mo

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1mo

Associate, Credit eTrading Software Developer (Java)

New York, New York, United States

$125k-$150k/yr OnsiteFull Time

JefferiesNYSE: JEF: Global investment banking and capital markets services provider.

3+ YOE3+ years in finance; Java 8-21; Linux; SQL Server/PostgreSQL/JDBC; multithreaded programming; strong design, coding, testing, debugging; good collaboration.

Java, Linux, SQL, JDBC, PostgreSQL, Multithreading

1mo

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1mo

Software Engineer - Reference Data (Java/SQL)

New York, New York, United States

$175k-$200k/yr OnsiteFull Time

Virtu FinancialNYSE: VIRT: Provides liquidity and trading technology to global financial markets.

5+ YOE5+ years in enterprise distributed systems; Java and SQL expertise; interest in trading/financial markets.

Java, SQL, Oracle RDBMS, Python, HBase, Hadoop, Linux, SVN, Git

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Software Engineer (Java) in Test (New York, NY, US, 10036)

New York, New York, United States

$98k-$130k/yr OnsiteFull Time

ParamountNASDAQ: PSKY: Produces and distributes media content across global entertainment platforms.

3+ YOE3+ years in software or quality engineering with robust Java development; experience enhancing an enterprise automation framework; AI tools experience; strong testing and QA focus.

Java, Selenium, Appium, Playwright, REST-Assured, TestNG, JUnit, Maven, Gradle, GitHub Copilot, Claude Code, Cursor, LLM-based assistants, ffmpeg/ffprobe, Charles/Fiddler

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Software Engineer, Backend Java

New York City, New York, United States

$117k-$173k/yr HybridFull Time

PayPalNASDAQ: PYPL: Digital platform for sending money and processing online payments.

1+ YOE1+ years of backend development experience; Bachelor's degree or equivalent.

Java, Python, Ruby on Rails, Java EE, Spring MVC, Hibernate, REST, OAuth, JSON, ORM, SQL, NoSQL, AWS, GCP, Azure

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Senior DevOps Engineer w/ Java & ETL experience (Bilingual-Korean)

Ridgefield Park, New Jersey, United States

$9k/mo OnsiteFull Time

SBT Global: Provides integrated IT consulting and global logistics management services.

9+ YOEMid-Senior DevOps engineer with 9+ years of experience, Java, ETL, J2EE, and bilingual Korean/English; full-time in Ridgefield Park, NJ

Java, J2EE, Spring, iBatis, Hibernate, JPA, JDBC, JSP/Servlet, Web Services, JMS, WebLogic, JBoss, Tomcat, UNIX, Linux, Windows, Oracle, MS SQL, MariaDB, ETL, Alteryx, Oracle Data Integrator, MS SQL Server Integration Services (SSIS), Tableau, Power BI

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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

Elevance HealthNYSE: ELV: Provides health insurance plans and integrated healthcare services.

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

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Software Development Lead with Java

New York, New York, United States

$120k-$203k/yr HybridFull Time

S&P GlobalNYSE: SPGI: Provides independent credit ratings, market benchmarks, and financial analytics.

8+ YOE8+ years of software development experience in Java; enterprise Java frameworks; SQL databases; cloud platforms; version control.

Java, PostgreSQL, Oracle, AWS, Azure, Google Cloud Platform, Git, GitHub, GitLab, Jenkins, CI/CD, Prometheus, Grafana, Datadog, Docker, Kubernetes