129 java engineer jobs at 45 companies in Wallingford, CT
5d
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Java Developer
Hartford, Connecticut, United States
OnsiteFull Time
Experience in Java application development; familiarity with Angular, React, and SQL; strong communication and problem-solving; bachelor's degree or equivalent experience required.
Java, Angular, React, SQL, SQL Server
1mo
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Java Fullstack Engineer with Azure
Lafayette or Bloomfield or Raleigh or Dallas or Austin
$72k-$141k/yr HybridFull Time
6+ YOE6+ years Java full‑stack experience with Azure, microservices, REST/SOAP, Spring Boot, Docker/AKS, CI/CD, RDBMS/NoSQL, git, and performance testing experience.
Azure, Azure Batch, Azure Cloud, Azure Kubernetes Service (AKS), Docker, OpenShift, Spring Boot, Spring Batch, Camel, Fuse, Java, Java 8, J2EE, git, JMeter, NeoLoad, SQL, RESTful (Rest-APIs)
1mo
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Senior Java Software Engineer -Aerospace Systems
East Hartford or United States
RemoteFull Time
3+ YOE3+ years experience with Java and Python, embedded/real-time systems, knowledge of DO-330 and DO-178C, Git and Linux experience, strong communication, and U.S. citizenship required.
Java, Python, Git, Linux, DO-178C, DO-330
2mo
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Engineer - Manufacturing Technology Engineering (Danbury, CT, US, 6813)
Danbury, Connecticut, United States
$100k/yr OnsiteFull Time
1+ YOEBachelor's in engineering and 1 year experience; computer literacy; knowledge of APQP, FMEA, SPC; programming in Python/Java/C++; US work authorization; export control compliance.
Python, Java, C++, Microsoft Excel, Statistical methods
2mo
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Airfoil Tool Developer Principal Engineer P4 (onsite)
East Hartford, Connecticut, United States
$108k-$205k/yr OnsiteFull Time
8+ YOEBachelor's in STEM with 8+ years engineering (or advanced degree +5). U.S. citizenship required. Experience with airfoil design, Python/Java/JavaScript, NX/Simcenter/Teamcenter, NXOpen, build tools, GitHub, Jira, and Agile.
Python, Java, JavaScript, NX, Simcenter, Teamcenter, NXOpen, Gradle, Maven, Ant, StarCCM+, GitHub, Jira, Agile
5d
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Mainframe Developer
Hartford, Connecticut, United States
$140k-$166k/yr HybridFull Time
15+ YOE5+ Mgmt15+ years in software architecture with 5+ years leading mainframe modernization; deep legacy/mainframe and cloud architecture experience; GenAI and leadership skills; Java, API, Angular, AWS expertise.
COBOL, JCL, CICS, VSAM, DB2, Java, Spring Boot, Spring Cloud, REST, GraphQL, Angular, AWS, Docker, Kubernetes, ECS, EKS, Terraform, CloudFormation, Claude, LLM, CI/CD
5d
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Senior Software Development Engineer (Java, Nest, React)
Texas or North Carolina or Scottsdale or Florida or Illinois or Hartford
$83k-$204k/yr RemoteFull Time
5+ YOE5+ years software development experience; strong backend and API development using Java Spring Boot, Node.js, GraphQL; Kubernetes, observability, API design, and cloud-native experience; GCP preferred; bachelor's degree preferred.
Java Spring Boot, Node.js, GraphQL, Kubernetes, Gradle, NestJS, GitHub Actions, Google Cloud Platform (GCP), GitHub Copilot, Claude Code, Cursor, Model Context Protocol (MCP), React, GitHub
2w
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Lead Engineer - Cloud & Gen AI
Orange, Connecticut, United States
$141k-$176k/yr OnsiteFull Time
10+ YOEBachelor's degree and 10+ years relevant experience; 3+ years AI; strong AWS and Azure, Terraform, Docker, Kubernetes, Python/Java/.NET; experience with TensorFlow or PyTorch and vector databases; excellent communication.
AWS, Azure, Terraform, TensorFlow, PyTorch, Python, Java, .NET, Docker, Kubernetes, Langchain, Semantic Kernel, Spring AI, vector databases
2mo
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Engineer 2 Supply Chain WMS
Enfield, Connecticut, United States
$97k-$176k/yr HybridFull Time
5+ YOE5+ years WMS application development experience (PKMS or equivalent), BA/BS or equivalent, strong SQL/Java/XML/JSON skills, AS/400 knowledge, experience supporting production systems and collaborating on WMS projects.
Microsoft SQL Server, Java, XML, JSON, DTS/SSIS, SQL, Stored Procedures, Microsoft Access, RPGLE, CL, DDS, Python, Visual Basic, C#, AS/400, PKMS, SDI Material Sorter HMIs, Loftware Nicelabel, Cybra Mark Magic
1mo
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Embedded System Engineer
Hauppauge, New York, United States
$96k-$131k/yr OnsiteFull Time
3+ YOEBachelors in Electrical Engineering, 3+ years embedded systems experience; firmware development (C, RTOS), FPGA (Verilog/VHDL), testing, documentation, and familiarity with Matlab-Simulink, PSIM, and revision control.
C, Verilog, VHDL, Assembly, C#, VB6, Java, WPF, Linux, RTOS, Tortoise SVN, Matlab-Simulink, PSIM, JTAG, FPGA, DSP, MCU, CPLD, SOM
3w
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Data Engineer
Atlanta or Baltimore or Boston or Charlotte or Columbus or Detroit or Hartford or Miami or New York or Philadelphia or Raleigh or Tampa or Washington
$91k-$122k/yr OnsiteFull Time
4+ YOE4+ years building production data engineering solutions; experience with cloud data platforms, streaming, orchestration, Python/Java; strong communication and critical thinking.
Amazon Redshift, Snowflake, Google BigQuery, Azure Synapse Analytics, Amazon EMR, Apache Spark, Presto, Databricks, Amazon Kinesis, Apache Kafka, Apache Airflow, dbt, Dagster, Azure Data Factory, DynamoDB, Cosmos DB, MongoDB, Kubernetes, Amazon ECS, Amazon SageMaker, Azure ML Studio, Python, Java
6d
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Sr. Applied AI Engineer (Claude/Codex)
Mountain View or St. Louis or Philadelphia or Houston or Bentonville or Columbus or Overland Park or Scottsdale or Cleveland or Detroit or Morristown or Raleigh or Des Moines or Oklahoma City or Miami or Minneapolis or Chicago or San Francisco or Cincinnati or New York or Dallas or San Diego or Denver or Albany or Hartford or Sacramento or Arlington or Redmond or Los Angeles or Pittsburgh or St. Petersburg or Milwaukee or Beaverton or Carmel or Walnut Creek or Seattle or Boston or Charlotte or Kirkland or Atlanta or Austin or Nashville
$80k-$294k/yr HybridFull Time
5+ YOE3+ MgmtRequires 5+ years in engineering and technical customer-facing roles, 3+ years in AI engineering and team management, 1+ year building Claude/Codex AI systems, and a bachelor's degree or equivalent.
Claude, Codex, Antigravity, Gemini, Python, Java, C, Go, Model Context Protocol (MCP), CI/CD, Electronic Medical Records (EMR)
1w
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Senior Software Engineer - D425 Hull, Mechanical & Electrical Systems
Groton, Connecticut, United States
HybridFull Time
5+ YOEBSc in CS/Electrical/Computer Engineering,5+ years software engineering experience,ability to obtain DoD Secret clearance,embedded software and hardware integration,unit testing,source control experience.
C++, Java, .NET, Python, Git, SVN, Linux RTOS, LabVIEW, IBM DOORS
1w
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Reliability Engineer
Charlotte or Chicago or Columbus or Hartford
$91k-$137k/yr HybridFull Time
3+ YOE3+ years in Infrastructure/SRE/DevOps, degree in CS/Engineering, hands-on experience with observability, IaC, CI/CD, cloud (AWS), Kubernetes, Python/Java, and database technologies.
Splunk, Dynatrace, CloudWatch, Terraform, CloudFormation, AWS, Kubernetes, Python, Java, Oracle, SQL Server
1w
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Reliability Engineer
Hartford or Charlotte or Columbus or Chicago
$91k-$137k/yr HybridFull Time
3+ YOE3+ years SRE/Infrastructure experience, Bachelor's in CS/Engineering, expertise in observability, IaC, cloud (AWS), Kubernetes, Python/Java, database knowledge, CI/CD and DevSecOps practices.
Splunk, Dynatrace, CloudWatch, Terraform, CloudFormation, AWS, Kubernetes, Python, Java, Oracle, SQL Server, CI/CD, AI/ML frameworks
1w
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Mainframe Developer
Hartford, Connecticut, United States
HybridFull Time
15+ YOE15+ years software architecture experience with 5+ years leading mainframe modernization; deep mainframe and Java/AWS/GenAI expertise; strong leadership, reverse-engineering, and stakeholder management skills.
COBOL, JCL, CICS, VSAM, DB2, copybooks, Java, Spring Boot, Spring Cloud, REST, GraphQL, Angular, AWS, Claude, LLM, Docker, Kubernetes, ECS, EKS, Terraform, CloudFormation
1mo
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Senior Software Engineer
Bristol or Burbank or Glendale
$142k-$190k/yr OnsiteFull Time
5+ YOE5+ years web/software engineering; mastery of HA Proxy, NGINX, Apache; extensive NodeJS and/or Java/Kotlin experience; AWS EC2, Fargate, Cloudfront; frontend web development; BS in Computer Science or equivalent.
HA Proxy, NGINX, Apache, NodeJS, Java, Kotlin, AWS EC2, Fargate, Cloudfront, JavaScript, TypeScript, React Native
2w
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Test Engineer, Firmware & Hardware
New Haven, Connecticut, United States
OnsiteFull Time
Experience with electronic systems, embedded microcontrollers, test equipment, defect tracking, and product validation; familiarity with RFID/Wi‑Fi/Z‑Wave/Zigbee and mobile-to-cloud protocols preferred.
Python, C#, Java, Test Complete, oscilloscopes, function generators, digital voltmeters (DVMs), logic analyzers, protocol analyzers, robotic test systems
4w
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Peoplesoft Developer (Hybrid)
Canton or Farmington or Boston or Raleigh
$81k-$115k/yr HybridFull Time
3+ YOE3+ years PeopleSoft Financials and 3+ years enterprise Java or C# development experience; experience with PeopleTools, Application Engine, PeopleCode, Integration Broker, BI Publisher, and BMC Control-M; bachelor’s in CS/IS preferred.
PeopleTools, Application Engine, PeopleCode, Integration Broker, BI Publisher, BMC Control-M, Java, C#
1mo
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Cloud Engineering, Advanced
Lincolnshire or Holtsville
$109k-$163k/yr HybridFull Time
8+ YOEBachelor's in CS/Engineering, 8+ years cloud engineering experience (2–3 years advanced cloud-native/architecture), expertise in AWS/Azure/GCP, IaC, containers, cloud security, scripting (Python/Go/Java/PowerShell); industry cloud certs desirable.
AWS, Azure, GCP, Python, Go, Java, PowerShell, Terraform, CloudFormation, Ansible, Docker, Kubernetes
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