122 back end developer jobs at 69 companies in Niagara Falls, NY

2mo
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Senior Back End Developer, Mobile Services
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
3+ YOESenior back-end developer with Spring Boot; leads development teams; Cloud platforms (OpenShift, Azure, AWS); API design; DevOps practices.
Spring Boot, OpenShift, Azure, AWS, OpenAPI, GraphQL, GitHub Actions, OCP, MQ Series, Kafka, Redis
4w
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Backend Engineer
Toronto or Canada
$85k-$105k/yr RemoteFull Time
Xello
Xello: Provides software for student career exploration and college readiness.
3+ YOE3+ years backend experience, strong SQL and C#, .NET/.NET Core, data modeling, API development, performance tuning, and TDD; experience with large-scale systems.
.Net Framework, .NET, .NET Core, C#, SQL Server, SQL, REST, APIs, GIT, Angular, Azure
3mo
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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
1w
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Node.JS backend developer
Toronto, Ontario, Canada
$70k-$95k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
5+ YOE5+ years software development experience building Node.js/TypeScript backend services, APIs, microservices; experience with SQL/NoSQL, cloud platforms, containerization, CI/CD, and secure coding.
Node.js, TypeScript, Express.js, NestJS, SQL Server, PostgreSQL, MongoDB, AWS, Azure, GCP, Docker, Kubernetes, Git, CI/CD, Kafka, React, Angular
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 products, strong communication and organizational skills, startup/entrepreneurial mindset.
Java
3w
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Intermediate Backend Engineer
Toronto, Ontario, Canada
$80k-$89k/yr HybridFull Time
Lush
Lush: Manufacturer and retailer of fresh handmade cosmetic products
Python-first backend developer with web framework, GraphQL, SQL, git, and deployment experience; able to build and maintain scalable APIs and integrate third-party systems.
Python, TypeScript, SQL, git, FastAPI, Django, Flask, Strawberry, Ariadne, Saleor, ERPNext, Microsoft Power BI, CloudSQL, pip, uv, venv, pyproject.toml, Docker
2mo
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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
3w
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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
2w
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Staff Backend Developer
Toronto, Ontario, Canada
$145k-$191k/yr HybridFull Time
Varicent
Varicent: SaaS platform for sales performance and incentive compensation management.
6+ YOE6+ years software engineering experience, strong system design, hands-on Python/TypeScript, cloud (AWS/GCP/Azure), CI/CD, automated testing, observability, and experience shipping production distributed systems.
Python, TypeScript, AWS, GCP, Azure, CI/CD
2w
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Senior Developer, Backend - Developer Infrastructure
Ottawa or Toronto or Calgary
$125k-$165k/yr RemoteFull Time
Fullscript
Fullscript: Healthcare platform for practitioner supplement dispensing and patient management.
Strong experience with Ruby/Rails, designing maintainable systems, testing and CI, platform/tooling and developer experience, strong communication and mentorship skills.
Ruby, Ruby on Rails, React, GraphQL
1mo
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Backend Engineer, Developer SDKs (Golang)
Toronto, Ontario, Canada
$135k-$258k/yr OnsiteFull Time
Stripe
Stripe: Provides global financial infrastructure and payment processing for businesses.
6+ YOE6+ years engineering experience, 3+ years as a Golang engineer, interest in multiple languages, and a passion for API design and developer experience.
Golang, Node.js, PHP, Ruby, Open API spec, protobuf
1mo
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Staff Backend Engineer
Toronto or Canada
$175k-$200k/yr HybridFull Time
Bettermode
Bettermode: Builds branded online community platforms for customer engagement.
Deep TypeScript and backend expertise with NestJS, event-driven systems (Kafka), PostgreSQL/MongoDB, AI/LLM integration experience, product-minded building, and ability to mentor engineers.
TypeScript, NestJS, Kafka, PostgreSQL, MongoDB, Claude Code, Cursor, LLMs
2w
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Backend Engineer III
Toronto, Ontario, Canada
$105k-$125k/yr HybridFull Time
Fulfillment IQ
Fulfillment IQ: Offers supply chain consulting and logistics technology solutions.
4+ YOE4+ years building backend services and APIs with strong Python, REST API design, relational databases, ORMs, testing, and production-grade performance and reliability.
Python, FastAPI, Flask, Django, PostgreSQL, SQLAlchemy, Alembic, Docker, CI/CD, LLM, RAG
3w
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Senior Back-End Developer
Toronto, Ontario, Canada
HybridFull Time
Analyticsmart
Analyticsmart: Provides data analytics and software solutions for retail brands.
7+ YOEUniversity degree in Computer Science or related,7+ years backend experience with Node.js/JavaScript,proficiency with relational and NoSQL databases,cloud platforms,CI/CD and testing,strong leadership and communication.
Node.js, JavaScript, PostgreSQL, MySQL, Redis, MS SQL Server, AWS, Azure, Heroku, GraphQL, Angular, Docker
1mo
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Senior Backend Engineer - Experience Group
Toronto, Ontario, Canada
RemoteFull Time
OX Security
OX Security: Secures software development lifecycles from code to runtime.
5+ YOE5+ years backend development experience; proficiency with Node.js and TypeScript; cloud experience (AWS, Azure, or GCP); experience with microservices, API design, CI/CD; strong communication and customer-facing skills.
Node.js, TypeScript, AWS, Azure, GCP, Copilot, LLMs, CI/CD
3w
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Principal Backend Engineer Vice President
Mississauga, Ontario, Canada
$121k-$171k/yr HybridFull Time
Citi
CitiNYSE: C: Global diversified financial services holding.
6+ YOE6+ years backend development with expert Java, microservices, OAuth2/OpenID Connect, Docker/Kubernetes, cloud (GCP/AWS), relational and NoSQL databases, enterprise architecture and large-scale system design.
Java, OAuth2, OpenID Connect, Docker, Kubernetes, GCP, AWS, ReactJS, Oracle
3mo
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Lead Backend Developer
Toronto, Ontario, Canada
$147k-$192k/yr OnsiteFull Time
Movable Ink
Movable Ink: Provides AI-powered content personalization for digital marketing campaigns.
7+ YOE7+ years in software engineering; distributed, event-driven backends; cloud experience; strong architectural judgment; leadership and mentoring; focus on reliability and observability.
Google Cloud Platform, Event-driven architecture, Pub/Sub, Monitoring and observability, Distributed systems
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
1mo
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Senior Backend Engineer (Elixir)
Toronto or Montreal or Canada or United States or Europe
RemoteFull Time
Nabu Casa
Nabu Casa: Provides cloud services and hardware for open-source home automation.
5+ YOE5+ years backend experience, professional Elixir production experience, TypeScript, Git/GitHub, system administration basics, experience with auth/identity and payment/subscription systems, fluent English.
Elixir, TypeScript, Git, GitHub, NestJS, Terraform, Grafana, Python
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