144 python backend developer jobs at 93 companies in Newfane, NY
1w
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Backend Engineer – Python (API & Platform Engineering)
Toronto, Ontario, Canada
$55-$58/hr OnsiteContract
5+ YOE5+ years backend experience, strong Python, REST/OpenAPI, SQL/NoSQL, cloud (AWS/Azure/GCP), Git, CI/CD; BS/MS in CS or related.
Python, JSON, OpenAPI, SQL, NoSQL, AWS, Azure, GCP, Git, Docker, Kubernetes
2mo
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Staff Backend Engineer
Toronto, Ontario, Canada
$150k-$160k/yr HybridFull Time
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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Backend Engineer III
Toronto, Ontario, Canada
$105k-$125k/yr HybridFull Time
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
1mo
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Backend Software Engineer
Toronto, Ontario, Canada
$118k-$158k/yr OnsiteFull Time
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
1mo
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Senior Backend Engineer (Applications)
Toronto or Canada
$150k-$190k/yr OnsiteFull Time
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
3mo
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Backend Engineer, Data
Canada or Toronto
$172k-$258k/yr HybridFull Time
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
2w
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Lead Backend Developer
Toronto, Ontario, Canada
$147k-$192k/yr OnsiteFull Time
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
3w
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Staff Backend Developer
Toronto, Ontario, Canada
$145k-$191k/yr HybridFull Time
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 Backend Engineer (Elixir)
Toronto or Montreal or Canada or United States or Europe
RemoteFull Time
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
3mo
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Senior Backend Engineer (Ruby on Rails/Python) - Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$120k-$217k/yr HybridFull Time
7+ YOE7+ years software engineering; experience with ingestion pipelines, ETL, and content processing; proficient in Ruby, Python, or Go; AWS and distributed workflows; strong DB design; effective communicator.
Ruby, Python, Go, AWS, SQL, NoSQL, ETL, LLM
2mo
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Senior Full Stack Backend Engineer
North York, Ontario, Canada
HybridFull Time
8+ YOE8+ years backend experience; strong Ruby and Ruby on Rails skills; SQL (PostgreSQL/MySQL), Redis, background job experience (Sidekiq/Rescue), Git/GitHub, DevOps basics (Heroku, AWS, S3, Cloudflare), testing (Rspec/minitest), familiarity with payment systems (Stripe, Paypal).
Ruby, Ruby on Rails, PostgreSQL, MySQL, Redis, Sidekiq, Rescue, Git, GitHub, Heroku, AWS, S3, Cloudflare, Rspec, minitest, CircleCI, CodeShip, Stripe, Paypal, Javascript, CSS, HTML, NodeJS, Python, Erlang, Elixir
2mo
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Senior Backend Engineer (SaaS, Data & AI)
Toronto, Ontario, Canada
RemoteFull Time
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
4w
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Senior Backend Engineer, Growth & Agents
Toronto, Ontario, Canada
$160k-$215k/yr HybridFull Time
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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Member of Technical Staff - Backend Software Engineer
Toronto, Ontario, Canada
$100k-$300k/yr OnsiteFull Time
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
3w
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Software Developer - Backend (Intermediate to Senior)
Toronto, Ontario, Canada
$100k-$190k/yr OnsiteFull Time
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
3w
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Python Developer
Toronto, Ontario, Canada
OnsiteContract
Commercial Python backend development experience, prompt engineering and generative AI/LLM experience, API and scalable backend design, strong communication and Agile collaboration skills.
Python, Large Language Models (LLMs), RESTful APIs, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD
3d
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Back-End Software Engineer
Toronto, Ontario, Canada
$86k-$136k/yr HybridFull Time
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
1mo
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Backend Performance Testing Engineer
Toronto, Ontario, Canada
$75k-$98k/yr HybridFull Time
4+ YOE4+ years experience in backend performance testing with LoadRunner/JMeter/K9, Dynatrace monitoring, strong SQL skills, and analytical problem-solving.
Playwright, Python, LoadRunner, JMeter, K9, Dynatrace, SQL, Kubernetes, PurePaths
2w
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Back-end .net Developer
Toronto, Ontario, Canada
$66k-$99k/yr OnsiteFull Time
University degree in CS/CE, proficiency in C#, ASP.NET and SQL, database design experience, strong communication and problem-solving skills, ability to learn new technologies quickly.
C#, ASP.NET, SQL, ASP.NET Web API, ASP.NET Web Forms, ASP.NET Core, HTML, CSS, JavaScript, Python, Git
5d
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Senior Software Developer- Backend with Python
Ottawa or Toronto or Ottawa or Toronto
$93k-$109k/yr OnsiteContract
3+ YOEUndergraduate degree or equivalent experience; 3–5 years developing web solutions; Python, REST APIs, front-end technologies, databases, AWS, testing, DevOps, analytical and collaborative skills.
Python, XML, HTML, CSS, JavaScript, jQuery, SQL, Oracle, Amazon Redshift, CKAN, AWS, Lambda, SNS, SQS, API Gateway, PostgreSQL, CloudFormation, Drupal, DevOps, RESTful API
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