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84 java back end developer jobs at 35 companies in Niagara Falls, NY

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
3mo
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Java Backend Developer
Mississauga, Ontario, Canada
$94k-$142k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
5+ YOE5+ years Java backend development with Spring (Boot/Data/Cloud), strong SQL and data-processing skills, experience with Maven/Gradle, TDD, SonarQube, microservices/event-driven architecture, and generative AI application; bachelor’s or equivalent.
Java, Spring Boot, Spring Data, Spring Cloud, SQL, Maven, Gradle, SonarQube, Docker, Kubernetes, Apache Spark, Flink, AWS, Azure, GCP, Test-Driven Development (TDD), Generative AI (GenAI)
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2d
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Java Backend Developer
Toronto, Ontario, Canada
$77k-$120k/yr OnsiteFull Time
Wipro
WiproNYSE: WIT: Global technology services and consulting for digital transformation.
5+ YOE5+ years experience, strong Core Java and Spring Boot, API development, system design, relational and NoSQL DB (Oracle,MongoDB), EM of clean code, unit testing and CI/CD; React and frontend skills are a plus.
Spring Boot, Core Java, J2EE, Collections, Multithreading, Oracle, MongoDB, React, JavaScript, CSS, HTML, Node JS, React.js, Web pack, Bootstrap, SASS, Express, Redux, Flux, CICD
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3mo
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Java Backend Developer
Mississauga, Ontario, Canada
$94k-$142k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
5+ YOE5+ years Java backend experience, strong Java and Spring (Boot/Data/Cloud) skills, SQL expertise, build tools (Maven/Gradle), TDD, static analysis (SonarQube), experience with data processing and GenAI usage; Bachelor’s degree or equivalent.
Java, Spring, Spring Boot, Spring Data, Spring Cloud, SQL, Maven, Gradle, SonarQube, Apache Spark, Flink, Docker, Kubernetes, AWS, Azure, GCP, Generative AI (GenAI), Test-Driven Development (TDD)
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4w
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Java Backend Engineer
Toronto, Ontario, Canada
$62k-$91k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
7+ YOE7+ years Java development experience with Spring Boot and microservices, REST API design, Git and CI/CD, cloud (AWS/Azure/OpenShift), Docker and Kubernetes; strong engineering practices and collaboration skills.
Java, Spring Boot, RESTful APIs, AWS, Azure, OpenShift, Docker, Kubernetes, Git, GitHub Actions, CI/CD pipelines, Splunk, Dynatrace, GitHub Copilot, Angular
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2mo
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Java Backend Developer
Etobicoke, Ontario, Canada
$100k-$135k/yr HybridFull Time
Localcoin
Localcoin: Operates a global network of cryptocurrency automated teller machines.
5+ YOE5+ years backend Java experience; strong Spring (Boot, MVC, JPA, Security); SQL databases; Maven/Gradle; Git; Docker; RESTful services; security best practices; CI/CD and related tools.
Java, Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Maven, Gradle, SQL, MySQL, PostgreSQL, Oracle, MSSQL, Git, Docker, NGINX, Swagger, Postman, Flyway, CI/CD, Linux
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2w
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Senior Backend Java Engineer
Toronto, Ontario, Canada
$63k-$148k/yr RemoteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
6+ YOE6+ years Java backend experience, strong microservices and API knowledge, experience with Sprong Boot, Kubernetes, databases; exposure to GenAI tools (Claude Code), Python/NodeJS; able to work independently and mentor juniors.
Java, Sprong Boot, Kubernetes, APIs, Claude Code, Python, NodeJS
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2mo
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Backend Engineer
Toronto, Ontario, Canada
$100k-$130k/yr HybridFull Time
Ecopia AI
Ecopia AI: AI-powered mapping systems for creating Earth's digital twins
1+ YOEBS in CS; 1+ year experience; proficient in Go, C++, Python, or Java; experience with Postgres, MongoDB, Redis, Cassandra; UNIX, TCP/IP; REST or gRPC APIs; Docker; cloud platforms (GCP or AWS); distributed systems.
Go, C++, Python, Java, PostgreSQL, MongoDB, Redis, Cassandra, UNIX, TCP/IP, REST, gRPC, Docker, GCP, AWS
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1w
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Senior Backend Engineer
Toronto, Ontario, Canada
OnsiteFull Time
Venn
Venn: Digital banking and financial management platform for Canadian businesses.
6+ YOE5+ years Java, 6+ years backend development, experience building and scaling production-ready financial products, strong communication and organizational skills, startup/fintech experience preferred.
Java
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1mo
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Staff Backend Engineer
Toronto, Ontario, Canada
$150k-$160k/yr HybridFull Time
HelloFresh
HelloFreshFrankfurt Stock Exchange: HFG: Global meal kit delivery service and food solutions provider.
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
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3d
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Staff Backend Engineer
Toronto, Ontario, Canada
HybridFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
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
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2mo
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Senior Backend Developer
Toronto, Ontario, Canada
$120k-$135k/yr RemoteFull Time
Sangoma
SangomaNASDAQ: SANG: Provides unified communications and cloud-based customer experience solutions.
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
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3mo
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Senior Backend Engineer
Montreal or Toronto
$140k-$180k/yr HybridFull Time
US Mobile
US Mobile: A mobile virtual network operator providing flexible cell phone plans.
7+ YOE7+ years of experience with Java and Spring Boot; REST APIs; RabbitMQ or AWS SQS/SNS; NoSQL (MongoDB); AI-assisted development tools; Git, CI/CD; strong collaboration and debugging skills.
Java, Spring Boot, Python, REST APIs, RabbitMQ, AWS SQS/SNS, MongoDB, Claude, Opencode, Git, CI/CD
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1mo
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Senior Back End Developer
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
8+ YOE8+ years backend development; Java; Spring Boot; REST APIs; Microservices; Oracle/PostgreSQL; Kafka; containerized apps; cloud platforms (AWS/Azure/OpenShift/GCP).
Java, Spring Boot, REST, Kafka, Oracle, PostgreSQL, OpenShift, AWS, Azure, GCP, Docker, Kubernetes
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2w
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Staff Java Engineer (Backend)
Toronto, Ontario, Canada
$118k-$152k/yr OnsiteFull Time
Capco
Capco: Global consultancy providing business and technology services.
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
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1mo
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Senior Backend Engineer (Applications)
Toronto or Canada
$150k-$190k/yr OnsiteFull Time
Forma.ai
Forma.ai: AI-powered platform for managing enterprise sales compensation and performance.
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
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1w
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Senior Backend Engineer - Brand Platform
Kitchener or Toronto
$156k-$215k/yr HybridFull Time
Faire
Faire: Online wholesale marketplace connecting independent retailers with unique brands.
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
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1mo
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Senior Backend Engineer - Payroll - Toronto
Toronto or Canada
$148k-$189k/yr OnsiteFull Time
HiBob
HiBob: HR software platform for managing employee lifecycle and engagement.
6+ YOE6+ years backend software engineering for SaaS, located in Toronto metro; experience with Java/Kotlin/Scala, AWS, PostgreSQL/MySQL, testing methodologies; shipped customer-facing features.
Java, Kotlin, Scala, AWS, PostgreSQL, MySQL
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1mo
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Senior Backend Engineer - Payroll - Toronto
Toronto, Ontario, Canada
$148k-$189k/yr OnsiteFull Time
HiBob
HiBob: Provides a cloud-based human resources management platform for businesses.
6+ YOEMust be located in the Toronto metro area; 6+ years backend SaaS engineering experience; strong software design skills; experience with Java/Kotlin/Scala, AWS, and relational databases; testing and delivery experience.
Kotlin, Scala, Java, AWS, PostgreSQL, MySQL
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1mo
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Senior Backend Engineer - Payroll - Toronto
Toronto or New York City or Canada
$148k-$189k/yr OnsiteFull Time
HiBob
HiBob: Cloud-based human resources management platform for mid-sized businesses.
6+ YOE6+ years backend software engineering for SaaS; located in Toronto metro; experience shipping customer-facing features; Java/Kotlin/Scala; testing methodologies (unit testing, TDD); AWS; relational databases (PostgreSQL, MySQL).
Java, Kotlin, Scala, AWS, PostgreSQL, MySQL, TDD
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1mo
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Senior Backend Engineer - Payroll - Toronto
Toronto or New York City
$148k-$189k/yr OnsiteFull Time
HiBob
HiBob: Provides cloud-based human resources and workforce management software.
6+ YOE6+ years backend SaaS engineering experience; must be physically located in the Toronto metropolitan area; strong software design, scalable architecture, production shipping, Java/Kotlin/Scala, AWS, and relational DB experience; testing (unit/TDD/mocking).
Java, Kotlin, Scala, AWS, PostgreSQL, MySQL
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