296 backend developer jobs at 161 companies in Grand Island, NY

1mo
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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
2w
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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
2w
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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
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
1mo
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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
3w
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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
2d
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Senior Backend Engineer
Bedford or Calgary or Markham or Toronto or Vancouver or Ottawa
$137k-$186k/yr RemoteFull Time
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
5+ YOERequires 5–10 years building distributed backend systems, expertise in Go, Java, or C++, cloud and Kubernetes experience, systems knowledge, and a bachelor's degree or equivalent.
Go, Java, C++, Kubernetes
2mo
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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
1d
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Backend Engineer, Link (US)
New York City or Seattle or San Francisco or Toronto
HybridFull Time
Stripe
Stripe: Provides online payment processing and financial infrastructure for businesses.
2+ YOERequires 2–10+ years of industry software engineering experience, strong coding and collaboration skills, autonomy, and interest in backend work across varied technologies and stacks.
2mo
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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
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 - 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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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 building and operating backend/platform systems, strong distributed systems and reliability experience, Python and GCP familiarity, observability and on-call experience, mentoring and technical leadership.
Python, Google Cloud Platform
1mo
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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
1mo
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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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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
2w
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Staff/Senior Backend Engineer (Node.js)
London or Netherlands or Germany or Prague or Brazil or Dublin or Barcelona or Toronto or Warsaw
RemoteFull Time
Mimica: Automates enterprise process discovery and mapping using artificial intelligence.
8+ YOE8+ years backend engineering experience, strong Node.js/JavaScript/TypeScript skills, experience with scalable architectures, APIs, databases, distributed systems, Docker/K8s, and strong communication.
Node.js, JavaScript, TypeScript, Docker, K8s, PostgreSQL, MongoDB, MERN
2w
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Intermediate Backend Developer (C# & SQL Server) - Remote
Toronto or Ottawa
$60k-$85k/yr RemoteFull Time
TELUS Health
TELUS HealthToronto Stock Exchange: T: Digital health and wellbeing solutions for individuals and organizations.
5+ YOE5+ years backend development experience with C# and .NET 4.8, strong T-SQL/SQL Server skills, API and CI/CD experience, agile practices, and strong communication.
C#, .NET 4.8, T-SQL, SQL Server, Oracle, Powerflex, ABL (Area Benefits LifeWorks), CI/CD
3mo
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Senior Backend Engineer (SaaS, Data & AI)
Toronto, Ontario, Canada
RemoteFull Time
Kaseya
Kaseya: Develops IT management and security software for service providers.
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
2w
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Senior Java Backend Engineer
Toronto, Ontario, Canada
$84k-$135k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
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