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Java Engineer Jobs in Cos Cob, CT, US

1,400+ java engineer jobs from 330+ companies hiring in Cos Cob, CT, US.

All jobs in Cos Cob, CT, US Java Engineer Jobs in United States

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1,427 jobs- Cos Cob • 50 miles

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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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Java Developer

Whippany, New Jersey, United States

$132k-$135k/yr OnsiteFull Time

BarclaysLondon Stock Exchange: BARC: Global bank providing retail, corporate, and investment financial services.

Java development experience; design, develop, and test software; collaborate with cross-functional teams; ensure secure coding and code quality.

Java, Spring, JUnit, REST, Web Services

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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 - R01564833

Chicago or New Jersey City

$75-$80/hr OnsiteFull Time

Brillio: Provides digital transformation and big data analytics consulting services.

10+ YOEJava Developer with 10+ years, strong Java, Kafka, AWS, Spring; onsite in NJ or Chicago; Agile SDLC; strong problem-solving.

Java, Kafka, AWS, JavaScript, Spring, SQL, Oracle, NoSQL, Jira, Jenkins, Git, JUnit, Selenium, Docker, Kubernetes, Spring Boot, Swagger, Cloud, Gaia, OpenAPI

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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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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

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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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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

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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

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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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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

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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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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

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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

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Java Software Engineer III

Boston or Jersey City

$133k-$185k/yr OnsiteFull Time

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

3+ YOE3+ years software engineering; Java, Spring Core/Boot, REST, Kubernetes, Docker, Kafka; cloud (AWS/GCP/Azure); SQL; CI/CD; security best practices.

Java, Spring Core, Spring Boot, REST APIs, Kubernetes, Docker, Kafka, SQL, Cloud (AWS,GCP,Azure), CI/CD

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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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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

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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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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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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

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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

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2mo

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2mo

Principal Engineer - Java/AWS, Zelle

San Francisco or Scottsdale or Chicago or New York

$207k-$276k/yr HybridFull Time

Early Warning Services: Provides payment and risk management solutions to financial institutions.

15+ YOEFifteen+ years in software design/development; FinTech experience; leadership; expert in Java, AWS, REST, microservices, CI/CD, and cloud.

Java, REST, Spring, Kafka, Oracle PL/SQL, JavaScript, JQuery, AngularJS, AWS, Git, Jenkins, Maven, Terraform

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Lead Specialty AI Java Software Engineer

New York or Charlotte

$159k-$305k/yr HybridFull Time

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

5+ YOE5+ years in specialty software engineering; strong Java and Python; data-intensive analytics; distributed data systems; capital markets knowledge preferred.

Java, Python, Data Analytics, AI/ML

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19h

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19h

Principal Software Engineer (Java Full Stack)

Dallas or Tampa or Jersey City

HybridFull Time

DTCC: Provides post-trade infrastructure for the global financial services industry

8+ YOE8+ years backend Java development; Spring Boot; REST, Kafka, Kubernetes; UI with React/JS; strong collaboration and mentoring.

Java, Spring Boot, SQL, JDBC, Oracle, PostgreSQL, Snowflake, Kafka, OpenShift, Maven, Jenkins, Bitbucket, HashiCorp Vault, REST APIs, React, HTML, CSS, JavaScript, TypeScript, Docker, Kubernetes, Grafana, Splunk, Dynatrace, Monorepos, AmazonQ

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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 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

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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

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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

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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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Senior Software Engineer - Java

New York City, New York, United States

$129k-$232k/yr HybridFull Time

Squarespace: Software platform for building websites and managing online businesses.

7+ YOE7+ years backend experience in Java, Python, or similar; large-scale distributed systems; CS degree or equivalent experience; strong CS fundamentals; collaborative work style.

Java, Python, C

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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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Senior DevOps Engineer with Java & ETL experience

Ridgefield Park, New Jersey, United States

$9k/mo OnsiteFull Time

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

9+ YOE9+ years in DevOps and web-based system development with Java; strong J2EE, Java, SQL, ETL, and BI/ETL tooling experience; bilingual in Korean and English; Bachelor's in computer science or IT-focused degree.

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

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Systems Engineer

Florham Park or Westminster

$82k-$172k/yr HybridFull Time

CACINYSE: CACI: Provides information technology and professional services to government clients.

5+ YOE5+ years EW systems experience; software-centric systems engineering; Python/C++, Java, and MATLAB; DoD Agile/DevSecOps; ability to obtain TS/SCI clearance.

Python, C++, Java, MATLAB

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Distinguished Engineer

San Jose or San Francisco or McLean or New York

$294k-$335k/yr OnsiteFull Time

Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.

7+ YOEBachelor’s degree; 7+ years software engineering; 10+ years languages (Java, Python, Go, JavaScript/TypeScript, Swift); 3+ years cloud; experience with AI infrastructure and distributed inference.

Java, Python, Go, JavaScript, TypeScript, Swift, CUDA, Kubernetes, NCCL, InfiniBand, Ray, Triton Inference Server, TensorRT-LLM, vLLM, WWAN/Networking

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Software Engineer

Great Neck, New York, United States

$120k-$160k/yr OnsiteFull Time

Wild West Systems: Developer of autonomous defense and weaponized drone systems.

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

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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

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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

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HiringCafe market data

Java Engineer Jobs market signals in Cos Cob, 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

1,400+

Hiring companies

330+

Fresh sample

55% new in 30d

Salary visibility

93% show pay

Companies appearing in this market

CognizantJPMorgan ChasePublicis GroupeBank of AmericaBarclaysBlackRockCapgeminiCapital One

Work location mix in visible results

Onsite: 66Hybrid: 50Remote: 3