265 backend software engineer jobs at 152 companies in Newfane, NY

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Backend Software Engineer
Toronto, Ontario, Canada
$118k-$158k/yr OnsiteFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
5+ YOEBS in CS/EE (or equivalent) with 5+ years experience (masters/PhD experience tradeoffs), strong CS fundamentals, proficiency with Java/Kotlin/Python, backend and API development, SQL/GraphQL knowledge, testing and Agile practices.
Java, Kotlin, Python, GraphQL, SQL, RESTful APIs, Claude Code, GitHub Copilot, Cursor
2mo
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Software Engineer (Backend), Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Mexico City or Miami or New York City or Ottawa or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Toronto or Vancouver or Washington, D.C.
$104k-$187k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years as a software engineer; backend/data pipelines; comfortable with messy data; proficient in Ruby, Python, or Go; AWS experience; SQL; collaborative and communicative.
Ruby, Python, Go, AWS, S3, SQS, SNS, SQL
2mo
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Senior Software Engineer, Backend
Toronto, Ontario, Canada
HybridFull Time
Harvey
Harvey: AI platform for legal research and document analysis.
4+ YOE4+ years post-BS/MS backend software engineering experience; strong distributed systems, REST/gRPC, database and CS fundamentals; experience building platform infrastructure and enterprise features; attention to security and privacy.
REST, gRPC
2mo
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Backend Engineer, Data
Canada or Toronto
$172k-$258k/yr HybridFull Time
Stripe
Stripe: Provides global financial infrastructure and payment processing for businesses.
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
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Software Engineer, Backend - Unified Gateway
Toronto, Ontario, Canada
$120k-$150k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: Platform for on-demand delivery of food and local goods.
2+ YOE2+ years backend/platform engineering; experience with gRPC, REST, Protocol Buffers, Kotlin (or JVM), distributed systems, API gateway concepts, and high-throughput production systems.
gRPC, Protocol Buffers, Kotlin, Vert.x, OpenAPI, Claude Code, Codex, Cursor
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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
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
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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
2mo
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Member of Technical Staff - Backend Software Engineer
Toronto, Ontario, Canada
$100k-$300k/yr OnsiteFull Time
Viggle
Viggle: AI platform for controllable video generation and character animation.
3+ YOE3+ years backend experience; proficiency in Go or Python; experience with distributed systems, message queues, containerization (Docker, Kubernetes), and building scalable APIs and GPU processing pipelines.
Go, Gin, GORM, Python, FastAPI, asyncio, aiohttp, Redis, RabbitMQ, Temporal, NATS, Kafka, Docker, Kubernetes, CI/CD, PyTorch, TensorRT, Triton, FFmpeg, OpenCV, fMP4, HLS, PTS, Stripe, Airflow
4w
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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
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
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
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Senior Backend Engineer
Canada or Toronto
$172k-$202k/yr RemoteFull Time
Quo
Quo: AI-powered business phone system for small business teams.
Strong TypeScript/Node experience, Kubernetes and AWS familiarity, event-driven microservices, databases (Postgres, Mongo, Elastic, Redis), observability, and ability to design and own backend systems.
Node, Typescript, Kubernetes, AWS, RabbitMQ, Postgres, Mongo, Elastic, Redis, Datadog, Figma, Linear, Notion, Slack
2mo
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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
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 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 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
3w
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Software Developer - Backend (Intermediate to Senior)
Toronto, Ontario, Canada
$100k-$190k/yr OnsiteFull Time
Xanadu
Xanadu: Develops fault-tolerant quantum computers and open-source software using photonics.
3+ YOEBSc in CS/Engineering/Physics/Math,3+ years (intermediate) or 7+ years (senior) software development experience; strong Python/Go/Rust, PostgreSQL, Docker, cloud (AWS/GCP), API and CI/CD skills.
Python, Go, Rust, PostgreSQL, SQL, Docker, Docker Compose, GitHub Actions, Infrastructure as Code, AWS, Google Cloud, S3, DynamoDB, Lambda, ECS, API Gateway, Jupyter, NumPy, SciPy, pandas, xarray, IPKISS, GDSFactory, KLayout
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Back-End Software Engineer
Toronto, Ontario, Canada
$86k-$136k/yr HybridFull Time
Manulife
ManulifeTSX: MFC: Provides insurance, wealth management, and investment services globally.
5+ YOERequires 5+ years in back-end development and Azure cloud-native solutions, with Databricks, PySpark, Azure Data Factory, SQL Server, CI/CD, system design, and distributed-team communication experience.
Databricks, PySpark, Python, Azure Data Factory, SQL Server, Microsoft Azure, Azure DevOps, Jenkins, GitHub Actions, UML, Java, Spring Boot, Power BI, JavaScript, React, Node.js, New Relic, Dynatrace, Moogsoft, CI/CD, GitHub
1w
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Senior Backend Developer, Campaigns Team
Toronto, Ontario, Canada
$140k-$180k/yr OnsiteFull Time
Movable Ink
Movable Ink: Provides AI-powered content personalization for digital marketing campaigns.
5+ YOE5+ years software engineering experience building large distributed, concurrent systems; strong backend skills (Python/Ruby), relational DB design (PostgreSQL), cloud (Google Cloud Platform), Kubernetes, Kafka, CI/CD, and leadership.
Python, Ruby, PostgreSQL, RESTful, GraphQL, gRPC, Google Cloud Platform, Kubernetes, Kafka, RabbitMQ, Docker, GitHub Actions, git, CI/CD