314 backend engineer jobs at 162 companies in North Tonawanda, NY

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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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
1mo
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Senior Backend Engineer, Growth & Agents
Toronto, Ontario, Canada
$160k-$215k/yr HybridFull Time
EvenUp
EvenUp: AI-powered document generation and analysis for personal injury law.
5+ YOE5+ years software engineering experience; strong track record shipping production backend systems; experience with TypeScript and/or Python; experience building AI-powered or communication platforms is a plus.
TypeScript, Python
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
5d
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Backend Engineer, Operations Technology
Toronto, Ontario, Canada
$100k-$120k/yr HybridFull Time
HelloFresh
HelloFreshFrankfurt Stock Exchange: HFG: Global meal kit delivery service and food solutions provider.
Mid-level backend engineer with software engineering and system architecture experience, proficiency in Python, SQL, or Go, distributed systems, microservices, cloud platforms, containers, Agile, and technical mentorship.
Python, SQL, Go, AWS, Azure, GCP, Docker, Kubernetes
4w
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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
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
4d
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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
3d
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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.
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
1d
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Java Backend Developer
Toronto, Ontario, Canada
OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
5+ YOERequires senior backend development experience, strong Java and Spring Boot skills, REST APIs, microservices, databases, Git, problem-solving, independent ownership, and technical leadership.
Java, Spring Boot, REST, SQL Server, Oracle, PostgreSQL, MySQL, Git, Azure, AWS, Google Cloud Platform, Docker, Kubernetes, Kafka, RabbitMQ, Azure Service Bus, CI/CD
3w
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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
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
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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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
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
3mo
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Senior Backend Engineer (.NET & AI/ML)
Toronto or Vancouver or Alberta
$110k-$130k/yr HybridFull Time
Zonda
Zonda: Provides data intelligence and advisory for the homebuilding industry.
7+ YOE7+ years backend experience with .NET, gRPC, SQL Server, MongoDB, Elasticsearch; cloud (AWS/Azure); AI/ML features; strong API design and distributed systems.
.NET Framework, .NET Core, .NET 8+, C#, gRPC, Protocol Buffers, MediatR, SQL Server, MongoDB, Elasticsearch, AWS, Azure, Docker, CI/CD, GitHub Actions, GA4, Segment, Next.js, React, TypeScript, Python (optional), LangChain, MLflow