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Java Developer Jobs in Cromwell, CT, US
83 java developer jobs from 31 companies hiring in Cromwell, CT, US.
1d
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Associate Software Engineer - Java
Hartford or Danbury or Charlotte or Morristown
$70k-$105k/yr HybridFull Time
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
1mo
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Staff Software Engineer - Java Cloud (Health100 Platform)
Woonsocket or Boston or Scottsdale or Hartford or Richardson or Chicago
$118k-$284k/yr HybridFull Time
7+ YOE7+ years Java development; REST APIs/microservices; cloud (GCP/Azure); CI/CD and TDD; mentorship; strong ownership.
Java, Spring, Spring Boot, REST, Cloud - GCP/Azure, CI/CD, TDD, Kafka, Pub/Sub
1mo
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Software Engineer I (Java, Business Rules)
Hartford, Connecticut, United States
$99k-$163k/yr HybridFull Time
3+ YOEThree years programming experience; Java, PostgreSQL, AWS, Business Rules Management Systems; Agile; strong problem solving and communication; Bachelor's in CS or related field; two additional years of software engineering experience.
Java, PostgreSQL, AWS, Business Rules Management Systems
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
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)
1w
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Senior Software Engineer
Bristol or Burbank or Glendale
$142k-$190k/yr OnsiteFull Time
5+ YOE5+ years web development; Node.js/Java/Kotlin; cloud AWS; frontend tech; HTTP servers; test-driven, agile; strong communication.
Node.js, Java, Kotlin, AWS, NGINX, HAProxy, Apache, CloudFront, Fargate, React Native, JavaScript, TypeScript
2mo
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Software Engineer – Azure Application Developer
Cincinnati or Austin or Atlanta or Milwaukee or Houston or Hartford or Denver or Dallas or Detroit or Columbus
OnsiteFull Time
2+ YOE2+ years of professional experience building enterprise solutions using .NET and/or Java on Azure; experienced with RESTful services, Azure PaaS, databases, and containers.
C#/.NET, Java, Azure, Azure App Services, Azure Functions, Service Bus, Entity Framework, Azure SQL, Docker, Kubernetes, AKS, GitHub Actions, Azure DevOps
8h
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Software Engineer II
Glastonbury or Duluth or Goldsboro or Columbus or Raleigh or Glen Allen or Scottsdale
RemoteFull Time
3+ YOEBachelor's in CS/Software Eng or related field; 3+ years in software development; proficient in Java, C#, Python, or JavaScript; SDLC/agile; strong data structures/OO design; Git; unit/integration testing.
Java, CSharp, Python, JavaScript, Git, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, Microservices
2w
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Android Developer (Berlin, CT, US, 06037)
Berlin, Connecticut, United States
OnsiteFull Time
3+ YOEBachelor’s degree in Computer Engineering, Computer Science, Information Systems or related field; 3 years mobile development experience; Kotlin/Java for Android; Jenkins, Maven, GitHub/GitLab; RESTful SDKs/APIs; SQL; SCRUM; Agile; in-office work required
Kotlin, Java, Jenkins, Maven, GitHub, GitLab, RESTful APIs, SQL, SCRUM, Agile
1mo
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Senior Software Engineer
Bloomfield, Connecticut, United States
OnsiteFull Time
5+ YOE5+ years in application-level software for laboratory/industrial automation; Java or OO languages; embedded/real-time Java; Eclipse/VSCode; Git; robotics/automation experience.
Java, Eclipse, Visual Studio Code, Git, Docker, Kubernetes, REST, MySQL, MongoDB, Angular, Spring, Spring Boot, Hibernate JPA, ActiveMQ
4d
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Lead Platform Engineer
Boston or Hartford
$100k-$157k/yr RemoteFull Time
5+ YOEExtensive Kubernetes/OpenShift experience, OpenShift/ARO, Docker/Podman, Terraform/Ansible, CI/CD, Java/.NET apps, on-call support, strong collaboration.
Kubernetes, OpenShift, Azure OpenShift, Docker, Podman, Terraform, Ansible, Jenkins, GitHub, ArgoCD, Azure DevOps, Artifactory, JBoss, Nginx, Apache, Java, .NET, Dynatrace, Prometheus, Grafana, Kiali, Ansible Automation
2mo
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Embedded Software Engineer
Farmington, Connecticut, United States
$93k-$116k/yr OnsiteFull Time
Bachelor's in Electrical or Software Engineering; proficiency in C/C++, Python/Java; embedded software for real-time elevator controls; strong problem-solving and collaboration.
C, C++, Python, Java, Matlab, Simulink, .NET, Visual Studio, C#
2mo
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Sr Software Engineer
Bristol or Glendale
$142k-$190k/yr HybridFull Time
5+ YOE5+ years software engineering experience; BS in CS; proficient in Java, Python, or JavaScript; REST/GraphQL; AWS; Docker/Kubernetes; CI/CD; databases; Agile; strong communication.
Java, Python, JavaScript, REST, GraphQL, AWS, S3, Lambda, EC2, Docker, Kubernetes, Gitlab-CI, Terraform, CloudFormation, Jenkins, MongoDB, Redis, Elasticsearch, PostgreSQL, DynamoDB, TensorFlow, PyTorch
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
5d
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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
1mo
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Energy Management Systems (EMS) Software Engineer
Holyoke, Massachusetts, United States
$136k-$182k/yr HybridMultiple Commitments Available
7+ YOE1+ MgmtSenior EMS software engineer with 7+ years in real-time/EMS software; strong UNIX, Oracle PL/SQL, C++, JAVA; leadership experience; excellent communication and analytical skills.
UNIX, Oracle PL/SQL, C++, JAVA
2mo
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Mobile Security Engineer - Req# 502
Southington, Connecticut, United States
$110k-$155k/yr HybridFull Time
4+ YOE4+ years mobile app development; secure coding; iOS/Android; security tools; CI/CD; cross-team collaboration.
Swift, Objective-C, Kotlin, Java, Burp Suite, MobSF, Frida, Drozer, Postman, Checkmarx, Fortify, SonarQube, Git, CI/CD
5d
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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
1w
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Senior Software Engineer
Hartford, Connecticut, United States
$92k-$164k/yr RemoteFull Time
5+ YOE5+ years in reporting/analytics; Power BI, Snowflake; 3+ years C#/.NET or Java; MS SQL; frontend/API tech; cloud and DevOps; OpenAI tools.
Power BI, Snowflake, C#/.NET, MS SQL, React, JavaScript, jQuery, AJAX, CSS, HTML, REST API, OpenAI, GitHub Copilot, Terraform, Docker, Kubernetes, Azure, AWS, GCP, CI/CD, Linux, PowerShell, GitHub Actions, Azure DevOps
6d
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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++
1mo
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Process Engineer
Agawam, Massachusetts, United States
OnsiteFull Time
Bachelor’s in Mechanical, Electrical, Chemical Engineering, or CS; advanced degrees preferred; PLC, Python/Java/C++, SolidWorks, GD&T, FEA; rapid prototyping; strong problem solving and communication.
PLC, Python, Java, C++, SolidWorks, GD&T, Finite Element Analysis, COMSOL, Rapid prototyping
1mo
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Lead Data Engineer – Financial Data, Compliance & Business Intelligence
Chicago or Washington or Sarasota or Hartford or Costa Mesa or San Jose or Atlanta or Boston or Cleveland or Columbus or Dallas or Fort Lauderdale or Fort Wayne or Grand Rapids or Indianapolis or Los Angeles or Miami or New York City or Oak Brook Terrace or Sacramento or San Francisco or South Bend or Tampa or Houston or Austin
$111k-$226k/yr OnsiteFull Time
3+ YOE3+ years ETL development; experience with Bank Secrecy Act/AML regulations; consulting experience; strong ETL/EDW skills; Python/Java; cloud data warehousing (Azure/AWS/Snowflake); excellent communication and teamwork.
ETL tools, Python, Java, Azure, AWS, Snowflake
3d
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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 programming; CI/CD experience; API/UI testing; Agile environment.
Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#
1mo
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Lead Software Engineer - Stanley Access Technologies
Farmington, Connecticut, United States
OnsiteFull Time
8+ YOE8+ years software engineering; solution architect experience; Agile; AWS/JVM stack; IoT interest; cross-domain leadership.
AWS, Java, Spring Boot, Docker, Kotlin, Angular, Flutter, Django, AWS IoT Core
1mo
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Lead Software Engineer - Stanley Access Technologies
Farmington, Connecticut, United States
OnsiteFull Time
8+ YOELead software engineer with 8+ years of experience; architecture leadership; full-stack skills; Agile; AWS; interest in IoT.
AWS, Java, Spring Boot, Docker, Kotlin, Angular, Flutter, Django
3d
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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
1w
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Palantir Forward Deployed Senior Engineer
Chicago or Milwaukee or Dallas or Columbus or Kirkland or New York or Cincinnati or St. Louis or Cleveland or Oklahoma City or Austin or Albany or St. Pete or Hartford or Pittsburgh or Phoenix or Seattle or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or San Francisco or Morristown or Denver or Boston or United States
HybridFull Time
5+ YOE5+ years data engineering; 3+ years Palantir Foundry/Gotham; 3+ years AI techniques with Palantir AIP; 5+ years cloud (AWS/Azure/GCP); 5+ years Python, PySpark, Java; Bachelor’s degree in CS/Engineering or equivalent
Python, PySpark, Java, Palantir Foundry, Palantir Gotham, AIP
4d
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Data Engineer II - Credit Review Automation and Analytics
Charlotte or Newark or Stamford or Plano or Dallas or Boston or Providence or East Hartford or Pennington
$94k-$115k/yr OnsiteFull Time
2+ YOETwo years internal audit experience required; 1 year programming/technical experience (SQL, Python, SAS, Alteryx, HTML, Java)
SQL, Python, SAS, Alteryx, HTML, Java
2mo
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AI Engineer I
North Haven, Connecticut, United States
OnsiteFull Time
2+ YOEBachelor’s degree in computer science, AI, ML or related; two years AI/ML design, development, deployment; Python/other languages; strong data structures/algorithms; AI frameworks; problem solving; Copilot and data security experience preferred.
Python, C, R, Java, Machine Learning frameworks, Microsoft Copilot, Data security
3mo
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Data Engineer - Manager
Atlanta or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbia or Dallas or Baltimore or New York or Albany or Buffalo or Boston or San Antonio or Sacramento or Los Angeles or Irvine or San Diego or Seattle or Orlando or Pittsburgh or Portland or Miami or New York or Houston or Phoenix or Atlanta or Las Vegas or Austin or Jacksonville or Florham Park or Hartford or Albany or Stamford or Cary or San Bernardino or Las Vegas or Baltimore or Portland or Albany
$99k-$232k/yr HybridFull Time
5+ YOE5 years of data engineering experience; Bachelor's degree in MIS, CS, Engineering, Math, or related field; cloud and data architecture knowledge; strong SQL and programming skills.
SQL, Python, Java, Scala, Hadoop, Spark, Kafka, AWS, Azure, GCP, ETL/ELT, Data Warehouses, Data Lakes, Data Governance, IAM, Terraform, CloudFormation, Databricks, Snowflake
1w
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Electrical Systems Embedded Software Engineer
Groton, Connecticut, United States
OnsiteFull Time
5+ YOEBachelor’s in Electrical or Computer Engineering; 5-14 years experience; C++ proficiency; Navy submarine familiarity preferred.
C++, Matlab/Simulink, LabVIEW, RTOS, GIT, TFS, DOORS, MS Project, Java, .NET, MBSE
1mo
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Software Engineering Advisor - Hybrid
Raleigh or Austin or Bloomfield or Denver or Bloomington or Morris Plains or Plano
$112k-$186k/yr HybridFull Time
8+ YOE8+ years in software automation testing; 3+ years in Agile; automation tools Selenium, Cucumber, Java, Cypress, Robot Framework (Python); OO programming; relational databases; GitHub; strong communication.
Selenium, Cucumber, Java, Cypress, Robot Framework (Python), GitHub, Object-Oriented Programming, Relational Databases, JavaScript, TypeScript, AWS, DynamoDB, S3, Lambda, Pega
2mo
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Configuration Management Co-op - Summer/Fall 2026
Danbury, Connecticut, United States
OnsiteInternship
Pursuing a bachelor’s degree in computer science or computer engineering; experience in data analysis, Java programming, and web development; familiarity with complex applications, testing, and debugging; knowledge of Java, JSON, Excel, VB, XML, SQL.
Java, JSON, Excel, VB, XML, SQL
2mo
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Configuration Management Co-op - Summer/Fall 2026
Danbury, Connecticut, United States
OnsiteMultiple Commitments Available
Pursuing a bachelor’s degree in computer science, computer engineering, or related field; experience with Java, JSON, Excel, VB, XML, SQL; coursework in data analysis and web development.
Java, JSON, Excel, VB, XML, SQL
4d
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Kubernetes Platform Specialist (AWS)
Hartford or Saint Paul
$49k-$105k/yr HybridFull Time
8+ YOE8-10 years in cloud engineering/DevOps, AWS (EKS, EC2, IAM, VPC, Lambda, S3, RDS, CloudFormation, CloudWatch, Route 53), Kubernetes/EKS, Docker, Python and shell scripting, Jenkins CI/CD, IaC (CloudFormation/Terraform/AWS CDK), security/compliance, architecture and automation.
AWS, EC2, EKS, IAM, VPC, Lambda, S3, RDS, CloudFormation, CloudWatch, Route 53, Kubernetes, Docker, Python, Bash, Go, TypeScript, Java, Jenkins, Terraform, AWS CDK, Terraform, Git, CI/CD, Infrastructure as Code, RBAC, network_policies, Helm
1mo
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Associate
Austin or Bridgewater or Charlotte or Hartford or Phoenix or Raleigh or Richardson
$65k/yr OnsiteFull Time
0+ YOEBachelor’s degree in CS/IT or related field; recent graduates; SDLC training; multiple US locations; no visa sponsorship.
Java, Python, C/C++
2mo
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Automation Tester with Hammer/Cyara and Conversational AI Testing experience
Hartford, Connecticut, United States
$71k-$113k/yr OnsiteFull Time
3+ YOE3+ years in QA automation; strong programming fundamentals; experience with Hammer On Demand, Cyara, Selenium; AI testing; CI/CD integration; API and backend testing; GenAI exposure.
Hammer On Demand, Cyara, Selenium, Java, JavaScript, Python, Git, Cucumber, SpecFlow, Windsurf, Cursor, REST, SOAP, AWS, GCP, IBM Cloud
1mo
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Scientist III/IV: Purification Assessment and Analytics, Biotherapeutics (Ridgefield, CT, United States, Connecticut)
Ridgefield, Connecticut, United States
$90k-$147k/yr OnsiteFull Time
3+ YOEExperience with protein purification and analytics; advanced degree with relevant experience; strong data analysis and automation skills.
MATLAB, Python, SQL, R, Minitab, JMP, Statistica, Java, HPLC, CGE, DLS, SDS-PAGE
HiringCafe market data
Java Developer Jobs market signals in Cromwell, 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
83
Hiring companies
31
Fresh sample
38% new in 30d
Salary visibility
68% show pay
Companies appearing in this market
SubwayThe Walt Disney CompanyCVS HealthISO New EnglandThe HartfordTravelersVoya FinancialAllegion
Work location mix in visible results
Onsite: 31Hybrid: 29Remote: 6