113 java backend developer jobs at 57 companies in Newfane, NY
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Senior Java Backend Engineer
Toronto, Ontario, Canada
$84k-$135k/yr HybridFull Time
10+ YOEBachelor's degree and 10+ years backend engineering experience. Deep hands-on Java, Spring Boot, Apache Kafka, AWS, and SQL. Experience with distributed systems, CI/CD, testing, Agile; Docker/Kubernetes preferred.
Java, Spring Boot, Apache Kafka, AWS, SQL, Docker, Kubernetes
1mo
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Specialist Java Backend Developer
Toronto or Port of Spain
OnsiteFull Time
10+ YOEDegree in software/computer/IT engineering; 10+ years Java experience with REST/JSON, microservices, MQ, Spring/Spring Boot, cloud-native and DevOps; enterprise security knowledge and Agile leadership skills.
Java, RESTful APIs, Microservices, MQ, Spring Boot, Spring Framework, JSON, Apigee
4d
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Senior Java Backend Developer - Operate
Toronto, Ontario, Canada
$72k-$138k/yr HybridContract, Temporary
5+ YOE5+ years Java, Spring Boot, microservices, and REST API development; 3+ years Agile/Scrum; enterprise distributed systems, databases, testing, CI/CD, and a bachelor's degree or equivalent experience.
Java, Spring Boot, Apache Spark, PostgreSQL, MySQL, Oracle, SQL Server, Hibernate, JPA, SDLC, CI/CD, Agile, Scrum
1mo
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Java Backend Lead (Hybrid)
Toronto, Ontario, Canada
$71k-$112k/yr HybridFull Time
10+ YOE10+ years Java backend development; expertise in Spring Boot, microservices, REST, SQL, Spring Security; cloud (AWS/Azure/OpenShift); Docker, Kubernetes, CI/CD (GitHub Actions); proven technical team leadership and system design skills.
Java, Spring Boot, Spring Security, SQL, AWS, Azure, OpenShift, Docker, Kubernetes, GitHub Actions, GitHub Copilot, Splunk, Dynatrace, Angular
3w
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Senior Java Backend Developer (Open Liberty)
Toronto, Ontario, Canada
$95k-$145k/yr HybridFull Time
5+ YOE5+ years Java development, experience with microservices, Open Liberty, cloud (GCP preferred), DevOps tools, and onsite/offshore delivery; university/college degree in IT.
JAVA/J2EE, Spring Rest services, Micro services, OAUTH2.0, ReactJS, Springboot, Node JS, JavaScript, Swagger/Open API, Jenkins, GitHub, JFROG Artifactory, Ansible, JIRA, Atlassian Confluence, Microsoft Azure, OpenShift, HA Proxy, Apache web server, F5, GCP, IBM Open Liberty
1w
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Senior Backend Engineer
Toronto, Ontario, Canada
OnsiteFull Time
6+ YOE5+ years Java, 6+ years backend development, experience building and scaling production products, strong communication and organizational skills, startup/entrepreneurial mindset.
Java
2mo
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Staff Backend Engineer
Toronto, Ontario, Canada
$150k-$160k/yr HybridFull Time
Strong experience designing scalable microservices and distributed systems; hands-on with Docker, Kubernetes, CI/CD, relational and document databases; production backend development in Golang, Python, or Java; experience integrating AI/LLM workflows preferred.
Kafka, RabbitMQ, Docker, Kubernetes, CI/CD, PostgreSQL, MySQL, MongoDB, LLM, Golang, Python, Java
3w
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Staff Backend Engineer
Toronto, Ontario, Canada
HybridFull Time
10+ YOE10+ years experience; BS in EE or CS (or advanced degree with equivalent experience); expertise in backend development with Java/Kotlin/C#/C++/JavaScript, Node.js or Spring Boot, GraphQL federation, Kubernetes, Docker, CI/CD; strong communication.
Node.js, Spring Boot, DGS, GraphQL, Apollo Federation, Java, Kotlin, C#, C++, JavaScript, Kubernetes, Docker, CI/CD
3mo
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Senior Backend Developer
Toronto, Ontario, Canada
$120k-$135k/yr RemoteFull Time
5+ YOE5+ years backend development; Rust and Nix; Linux-based cloud services; REST/GraphQL; Git and IaC; English fluency; bachelor’s in CS/CE or equivalent.
Rust, Nix, Node.js, Java, Git, Linux, REST, GraphQL, WebSockets, HTTPS, Infrastructure as Code
3mo
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Senior Java Back End Developer – Assistant Vice President
Mississauga or Toronto
$94k-$142k/yr HybridFull Time
6+ YOE6+ years apps development experience with Core Java, concurrent programming, Agile/TDD, distributed caching, RDBMS/NoSQL, Linux scripting, CI/CD tools, Kafka, cloud containers, and Capital Markets/credit risk domain knowledge.
Java, GridGain, Oracle Coherence, Redis, Oracle, MongoDB, Linux, Git, BitBucket, Jenkins, SonarQube, JIRA, Devin, Co-Pilot, Flink, Docker, Kubernetes, Kafka
3mo
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Senior Java Back End Developer – Assistant Vice President
Mississauga or Toronto
$94k-$142k/yr HybridFull Time
6+ YOE6+ years apps development experience with Core Java, concurrent programming, Agile/TDD, distributed caching, RDBMS/NoSQL, Linux scripting, CI/CD (Git/BitBucket, Jenkins), Kafka, cloud/container technologies and Capital Markets domain knowledge.
Core Java, GridGain, Oracle Coherence, Redis, Oracle, MongoDB, Linux, Git/BitBucket, Jenkins, SonarQube, JIRA, Devin, Co-Pilot, Flink, Docker, Kubernetes, Kafka
1mo
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Senior Backend Engineer (Applications)
Toronto or Canada
$150k-$190k/yr OnsiteFull Time
Design and build backend systems; proficiency in Java/Python/Kotlin/Go/C# and SQL; strong data modeling and relational schema skills; experience improving scalability, reliability, and observability.
Java, Python, Kotlin, Go, C#, SQL, JavaScript, React, TypeScript, Spring Boot, Django, Postgres, AWS, Docker, Kubernetes
3mo
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Backend Engineer, Data
Canada or Toronto
$172k-$258k/yr HybridFull Time
6+ YOE6+ years software engineering experience building data services, strong backend and SQL skills, experience with distributed data frameworks (Spark/Hadoop/Pig), and ability to communicate cross-functionally.
Spark, Scala, Airflow, Java, SQL, Python, Hadoop, Pig, Go
1mo
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Senior Backend Engineer - Brand Platform
Kitchener or Toronto
$156k-$215k/yr HybridFull Time
Experience designing backend services with Kotlin/Java, NewSQL (CockroachDB), building APIs, applying AI for engineering productivity, and improving performance at scale.
Kotlin, Java, JUnit, Hibernate, Guice, Jersey, HTTP, JSON, Protocol Buffers, MySQL, CockroachDB, AWS
4d
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Senior Back End Engineer Java/OLAP
Etobicoke, Ontario, Canada
$130k-$160k/yr HybridFull Time
5+ YOERequires 5+ years of Java development, JVM-based OLAP experience, multidimensional data modeling, JVM performance optimization, service-contract design, testing, Git, CI/CD, and English communication. A computer science or software engineering degree is required or equivalent experience.
Java, Atoti, ActivePivot, JVM, Git, CI/CD, PostgreSQL, AWS Aurora Serverless, AWS, .NET, AI
1w
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Sr. Consultant, Back End Developer- Java/Microservices/System Design
Toronto, Ontario, Canada
HybridFull Time
10+ YOE10+ years designing and developing Java-based microservices and system designs; strong experience with APIs, RDBMS/SQL, cloud-native tooling; Bachelor's degree or equivalent required.
Java, Spring Boot, RDBMS, SQL, Micro-services, J2EE, SOAP, REST, gRPC, Quarkus, JSON, Docker, PodMan, Maven, Gradle, Postman, Junit, Jenkins, GIT, OpenAPI/Swagger, OAuth2, JWT, Python, LLM, Vector Databases, RAG
2mo
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Senior Backend Engineer (SaaS, Data & AI)
Toronto, Ontario, Canada
RemoteFull Time
10+ YOE10+ years software engineering; backend SaaS experience; API/services; cloud platforms; data/AI integration
Node.js, Java, Go, Python, AWS, GCP, Azure, REST, GraphQL, gRPC, containers, distributed systems, pandas, ML frameworks
1mo
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Staff Java Engineer (Backend)
Toronto, Ontario, Canada
$118k-$152k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience with expert Java and Spring Boot; experience with microservices, REST APIs, cloud platforms (AWS/Azure/GCP), CI/CD, Kubernetes; strong mentoring and architectural skills.
Java, Spring Boot, Microservices, REST APIs, CI/CD, Kubernetes, Kafka, AWS, Azure, GCP, DevSecOps
1mo
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Sr. Developer – Application Development (Back-End)
Thornhill, Ontario, Canada
OnsiteFull Time
Design and develop secure, scalable backend systems, APIs and microservices using Node.js or Java Spring Boot; implement authentication/authorization and data security; collaborate with cross-functional teams and troubleshoot production issues.
Node.js, Java Spring Boot
2w
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Software Engineer, Global Payments Technology (Backend Java Developer) (268500)
Scarborough or Toronto
OnsiteFull Time
5+ YOE5+ years Java development experience with Java 8+, Spring Boot, Kafka, relational databases and SQL; REST APIs, Git, Maven/Gradle, and Agile experience required.
Java, Spring Boot, Apache Kafka, PostgreSQL, MySQL, Oracle, SQL Server, SQL, REST, Git, Maven, Gradle, CI/CD, AWS, Azure, GCP, Docker
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