35 java developer java backend engineer jobs at 19 companies in Connecticut
4d
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Knowledge Engineer Manager - Back-end Engineer
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL APIs, D3.js, Cytoscape.js, Terraform
3w
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Senior/Staff/Principal Backend Engineer, Platform & Data Ingestion
San Francisco or New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Louisiana or Massachusetts or Minnesota or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Washington or District of Columbia
$150k-$236k/yr HybridFull Time
4+ YOE4+ years building scalable APIs, microservices, and high-volume ETL; experience with Scala/Elixir or typed languages, OpenSearch/Elasticsearch, OCR/document parsing, SQL and data modeling; strong communication skills.
Scala, Elixir, Java, C#, C++, OpenSearch, Elasticsearch, OCR, Postgres, MySQL, Databricks, Snowflake, BigQuery, AWS, GCP, Amazon SQS, Kafka, Google PubSub, TypeScript, Angular, React
2mo
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Sr Manager, Backend Engineering
Stamford or Irving
$116k-$170k/yr HybridFull Time
8+ YOE2+ Mgmt8+ years web application development; Java EE/Spring; cloud platforms (AWS preferred; Azure valued); leadership; scalable backend design.
Java EE, Spring, HTML, XML, JSON, PL/SQL, AWS, Azure
2w
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Java Full Stack Developer with React
Hartford or Indianapolis or Phoenix or Raleigh or Richardson
OnsiteFull Time
Design and develop backend and server-side applications using Java, Spring, Node.js; implement reactive patterns, APIs, and event-driven solutions; bachelor\u0002s degree or equivalent experience required.
Java 11, Java 17, Spring Boot, Spring Reactive (WebFlux), Node.js, Express.js, Confluent Kafka, Kafka, RabbitMQ, Oracle, PostgreSQL, MySQL, Microsoft SQL Server, React
3w
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Senior Software Engineer, Java - Endpoint State & Control Team
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Massachusetts or Maryland or Maine or New Jersey or North Carolina or New York or Ohio or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa
$140k-$200k/yr HybridFull Time
5+ YOE5+ years backend Java/Kotlin experience, strong Java 11+ skills, RESTful API and multi-tenant SaaS design, PostgreSQL familiarity, ability to design data models and backend systems from scratch.
Java, Kotlin, C++, Golang, Postgres, AWS, RabbitMQ, Kafka, SQS
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
1mo
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Engineer
Stamford, Connecticut, United States
$70k-$75k/yr OnsiteFull Time
6+ YOEBachelor's in Computer Science, 6+ years experience, proficiency in Java/Python/JS/TS, web/backend development, databases, cloud platforms, Kubernetes, and strong communication and problem-solving skills.
Java, Python, JavaScript, TypeScript, Django, Flask, Spring Boot, SQL, NoSQL, MongoDB, Snowflake, AWS, Azure, Kubernetes
3w
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Software Engineer, Wikidata Platform
San Francisco or Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Maryland or Massachusetts or Michigan or Minnesota or Missouri or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Puerto Rico or Rhode Island or Tennessee or Texas or Utah or Vermont or Virginia or Washington or West Virginia or Wisconsin or Wyoming or Brazil or Canada or Colombia or France or Germany or Ghana or India or Indonesia or Italy or Kenya or Mexico or Morocco or Netherlands or Poland or Singapore or South Africa or Spain or Switzerland or United Kingdom
$95k-$149k/yr RemoteFull Time
2+ YOE2+ years backend/platform engineering on distributed systems, proficiency in Java or C++, experience with production-grade services, observability, and data processing technologies.
Java, C++, Kafka, Flink, Docker, Kubernetes, RDF, SPARQL
1mo
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GIS Software Engineer
Hartford, Connecticut, United States
$97k-$145k/yr HybridFull Time
2+ YOE2+ years software engineering experience; strong backend development with Java/Spring Boot, ArcGIS platform experience, Oracle geodatabases, Python, AWS, RESTful API design, and ability to work hybrid in Hartford, CT. Must be authorized to work in the US without sponsorship.
Java, Spring Boot, AWS, Python, Oracle, React, ArcGIS Enterprise, ArcGIS Pro, ArcPy, Jupyter Notebooks, Terraform, Arcade, PowerShell, Apigee, AWS API Gateway, GitHub, GitHub Copilot, Jenkins, SonarQube, SQL Server, PostgreSQL, Snowflake, Angular, FME
2mo
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Product Software Engineer II
Bristol or Glendale
$118k-$158k/yr HybridFull Time
3+ YOE3+ years backend or full-stack web applications; strong Java/Java EE/JVM; REST APIs; NoSQL; agile; collaboration.
Java, REST, NoSQL, AWS
2mo
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Product Software Engineer II
Bristol or Glendale
$118k-$158k/yr HybridFull Time
3+ YOE3+ years of backend or full-stack development, Java/JVM, REST APIs, NoSQL data stores, agile environment, scalable secure systems.
Java, REST, NoSQL, AWS, CI/CD
1mo
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Software Engineer - Integrations
Manchester or Canada or United Kingdom or Alabama or Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Iowa or Idaho or Illinois or Indiana or Kansas or Massachusetts or Maryland or Maine or Michigan or Minnesota or Missouri or North Carolina or Nebraska or New Hampshire or New Jersey or New Mexico or New York or Ohio or Oklahoma or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington or Wisconsin or West Virginia
£50k-£80k/yr HybridFull Time
3+ YOE3+ years backend software engineering with distributed systems and integrations; experience designing/operating APIs, webhooks or messaging systems; familiarity with Java, TypeScript/JavaScript, REST, SQL/MySQL; strong communication skills; must be authorized to work in the hiring country.
Java, TypeScript, JavaScript, REST, SQL, MySQL, CI/CD, Claude Code Enterprise
1mo
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Software Engineer L3
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or District of Columbia or Washington or California or Connecticut or Pennsylvania or San Francisco
$139k-$204k/yr RemoteFull Time
4+ YOE4+ years building and operating resilient backend services; production experience with Go/Java/Python, Terraform, AWS and Microsoft Azure; strong distributed systems and observability skills.
Go, Java, Python, AWS, EC2, S3, Aurora, DynamoDB, Microsoft Azure, Microsoft Azure Virtual Machines, Microsoft Blob Storage, Microsoft Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, MTA
1mo
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GIS Software Engineer
Hartford, Connecticut, United States
$97k-$145k/yr HybridFull Time
2+ YOE2+ years software engineering focused on backend development, strong ArcGIS experience, Java/Spring Boot, Python, Oracle, AWS and RESTful API development; bachelor’s degree preferred.
Java, Spring Boot, AWS, Python, Oracle, React, ArcGIS, ArcGIS Enterprise, ArcGIS Pro, ArcPy, Jupyter Notebooks, PowerShell, Terraform, Apigee, AWS API Gateway, GitHub, GitHub Copilot, Jenkins, SonarQube, ArcGIS ST_Geometry, Arcade, SQL Server, PostgreSQL, Snowflake, Angular, FME
1mo
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Software Engineer L3
United States or California or Colorado or Connecticut or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or Washington or Pennsylvania or District of Columbia
$139k-$204k/yr RemoteFull Time
4+ YOE4+ years building and operating resilient backend services. Hands-on experience with Go/Java/Python, cloud (AWS and Microsoft Azure), Terraform, distributed systems (Kafka), and IaC; familiarity with observability and high-throughput systems.
Go (Golang), Java, Python, AWS, AWS EC2, AWS S3, AWS Aurora, AWS DynamoDB, Microsoft Azure, Microsoft Virtual Machines, Microsoft Blob Storage, Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, mail transfer agent (MTA)
3w
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Python AWS Developer
Hartford or Lafayette
$81k-$172k/yr HybridFull Time
6+ YOE6+ years Python backend development, REST API (FastAPI/Flask), strong SQL, hands-on AWS (Lambda,S3,SQS,DynamoDB,EC2,EKS), CI/CD and production support experience.
Python, FastAPI, Flask, AWS Lambda, Amazon S3, Amazon SQS, DynamoDB, Amazon EC2, Amazon EKS, Boto3, CloudWatch, Jenkins, GitHub Actions, Terraform, CloudFormation, OpenShift, Kubernetes, PostgreSQL, Aurora, Java, ReactJS, Spring Boot, SQL
1mo
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Testing and Automation Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
3+ YOE3+ years testing/quality engineering experience; proficiency in test automation (UI/API/backend), performance testing, AI-assisted testing, CI/CD, and basic scripting in Java/JavaScript/Python/C#.
JMeter, Gatling, k6, Locust, Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#, CI/CD
3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
1mo
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Senior Software Engineer, e-Commerce Fulfillment
Romeoville or United States or Michigan or Nebraska or Illinois or Nevada or New Hampshire or Tennessee or Minnesota or Texas or Connecticut or Virginia or Maine or Indiana or District of Columbia or Wisconsin or Montana or New York or Maryland or Missouri or Kansas or Utah or Pennsylvania or Washington or Colorado or Arkansas or California or New Jersey or Iowa or Louisiana or Rhode Island or Massachusetts or South Carolina or Mississippi or Kentucky or Florida or Oregon or Ohio or North Carolina or Arizona or Idaho or Georgia
RemoteFull Time
5+ YOE5+ years building high-scale backend applications and microservices; expertise in event-driven architectures, message brokers (Kafka/RabbitMQ), distributed transactions, cloud platforms, software design, testing, and mentoring.
Kafka, RabbitMQ, AWS, Azure, GCP, Java, JVM, .NET, C#
1mo
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Senior Software Engineer, Ontology & Reasoning Systems (819)
Connecticut or New York
$238k-$267k/yr OnsiteFull Time
5+ YOE5+ years building backend systems; strong foundation in logic, discrete math and graph theory; experience with rule-based reasoning, knowledge graphs, LLM-powered pipelines, and production-grade engineering.
Python, Go, Java, Scala, Rust, LLMs, Datalog, Answer Set Programming, Prolog, SMT solvers, RAG, RDF, SPARQL, Neo4j, OWL, SHACL, CSP, vector search, property graphs
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