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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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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
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
1mo
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Sr. Consultant, Back End Developer- Java/Springboot/System Design
Toronto, Ontario, Canada
HybridFull Time
10+ YOE10+ years designing and developing applications using Java and Spring Boot; strong system design, microservices, SQL/RDBMS, REST/gRPC, containerization, CI/CD, and technical leadership; bachelor’s in CS or equivalent.
Java, Spring Boot, RDBMS, SQL, J2EE, SOAP, REST, gRPC, Quarkus, JSON, Docker, Podman, Maven, Gradle, Postman, JUnit, Jenkins, Git, OpenAPI, Swagger, OAuth2, JWT, Python, LLM, Vector Databases, RAG
1w
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Senior Consultant Azure GenAI Backend Engineer (RAG & Serverless Focus) (PL861)
Toronto, Ontario, Canada
HybridContract
Hands-on experience building RAG solutions with Azure OpenAI and Azure AI Search, serverless Azure deployments, backend development in Python/Java/Node.js, CI/CD, and infrastructure as code.
Azure OpenAI, Azure AI Search, Azure Functions, Logic Apps, Azure Container Apps, Azure App Services, Azure Storage, Key Vault, Azure DevOps, GitHub Actions, Terraform, Bicep, Docker, Kubernetes, Python, Java, Node.js
3w
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Senior Software Engineer, Backend
Toronto, Ontario, Canada
$120k-$160k/yr HybridFull Time
5+ YOE5+ years backend experience, career-focused on Python; production experience with Django or similar (FastAPI/Flask); PostgreSQL, REST APIs, Celery, Redis, Git; strong debugging, ownership, and scalability skills.
Python, Django, FastAPI, Flask, PostgreSQL, REST APIs, Celery, Redis, Git, AWS, NumPy, pandas
5d
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Staff Software Engineer (Backend) - Everand Core
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas or Charlotte
$141k-$267k/yr HybridFull Time
Significant backend engineering experience building and scaling distributed systems; strong coding in Ruby/Scala/Go/Python; expertise in reliability, observability, SLOs, and mentoring; cross-functional collaboration experience.
Ruby, Scala, Go, Python
4w
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Software Developer
Tonawanda, New York, United States
$77k-$112k/yr OnsiteFull Time
7+ YOEBachelor's in CS or related, 7+ years software development, full-stack expertise (frontend SPA, backend Python), system architecture, relational DB design, mentorship, and willingness to travel up to 20%.
Vue.js, Python, FastAPI
3mo
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Senior Application Developer
Toronto, Ontario, Canada
$120k-$130k/yr HybridFull Time
5+ YOE5–7 years backend software development experience; Python and Java; strong SQL; AWS; CI/CD; Docker; scripting; collaboration and mentorship.
Python, Java, SQL, AWS, Docker, Kubernetes, Terraform, CloudFormation, Bash, GCP, Azure, CI/CD, Jenkins, LLM/tools
3w
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Principal AI Platform Engineer
Toronto or Waterloo or Montreal or Calgary or Vancouver
OnsiteFull Time
Expert backend development with Java/Python (Spring Boot, Fast API), cloud-native microservices on AWS/GCP/Azure, Docker/Kubernetes/OpenShift, CI/CD and GitOps, identity (OAuth2, JWT, mTLS), SQL/NoSQL, enterprise governance, and team leadership.
Java, Python, Spring Boot, Fast API, REST APIs, AWS, GCP, Azure, Docker, Kubernetes, OpenShift, CI/CD, infrastructure-as-code, GitOps, OAuth2, JWT, mTLS, SQL, NoSQL
2d
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Software Engineer, User Profile
Alberta or Calgary or Canada or Toronto or Vancouver
RemoteFull Time
2+ YOE2+ years backend experience, strong algorithms/problem solving, experience with Go/Java/Python/C++ and distributed systems, Kafka and distributed databases experience preferred.
Golang, Kafka, Kubernetes, Redis, ScyllaDB, TiDB, Java, Python, C++
1mo
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Staff Software Engineer
Draper or Toronto or Pittsburgh or Cork
$153k-$294k/yr OnsiteFull Time
Proofpoint: Provides cybersecurity solutions for email, cloud, and data protection.
8+ YOE8+ years building production backend or full-stack systems; strong Python, Postgres, API integration with OAuth; experience with distributed/asynchronous systems; leadership in technical execution.
Python, PostgreSQL, SQL, AWS, Docker, React, TypeScript
3d
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Senior Software Engineer - Systems & Edge (Real-Time)
Toronto, Ontario, Canada
RemoteFull Time
8+ YOE8+ years software engineering experience; strong C++ and/or Python; solid Linux development; backend/REST API experience; multithreading, concurrency, performance, networking fundamentals; Git and CI/CD experience.
C++, Python, Linux, REST APIs, Git, CI/CD
2mo
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Software Engineer IV, Max Digital
Buffalo, New York, United States
$130k-$180k/yr OnsiteFull Time
8+ YOE8+ years of SaaS web app experience with ASP.NET, C#, JavaScript/Python; backend focus, Kafka, AWS, SQL Server; strong design, testing, and leadership capabilities.
ASP.NET, C#, JavaScript, Python, Kafka, AWS, SQL Server, Docker, Kubernetes, CI/CD, SQS, SNS, S3, ECS, EKS, Lambda, ElasticSearch
2mo
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Software Engineer, Full-Stack Applications - Ratings Technology (Toronto, ON, CA)
Toronto, Ontario, Canada
$100k-$150k/yr HybridFull Time
7+ YOE7+ years of full-stack enterprise software experience; strong backend (Java/Spring Boot, Python) and frontend (React) skills; cloud, DevOps, and data knowledge.
Java, Spring Boot, Maven, Python, FastAPI, Flask, ReactJS, Node.js, AWS, Kubernetes, GitHub Actions, PostgreSQL, Oracle, MongoDB, Kafka, PySpark, Parquet, Avro, Apache Airflow, Streamlit, Bash
3w
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Senior Software Developer
Toronto or St. Catharines or Montreal
$120k-$130k/yr HybridFull Time
6+ YOE6+ years building and shipping production software; hands-on experience putting LLMs into production (RAG, agents, evals); strong backend and frontend skills; proficiency with Git/GitHub and cloud platforms.
TypeScript, Node, React, VueJS, Vite, Tailwind, PostgreSQL, MySQL, MsSQL, Python, Cloudflare, AWS, Azure, MCP, Docker, Git, GitHub, Jira, GraphQL, LLM
2w
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Senior Software Engineer II, Cloud Data Ingestion & Transformation
Toronto, Ontario, Canada
$187k-$300k/yr HybridFull Time
6+ YOE6+ years full-stack development experience, strong backend focus; technical leadership and architectural experience; knowledge of data pipelines, distributed systems, and modern web stacks.
Kafka, Airflow, Sidekiq, SQS, RabbitMQ, Python, Django, React, Ruby on Rails, Snowflake
3w
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Principal AI Engineer
Toronto, Ontario, Canada
$306k-$384k/yr OnsiteFull Time
8+ YOE8+ years engineering experience; strong backend skills (Python preferred); experience with distributed systems, event-driven architectures, orchestration, evaluation frameworks, LLMs/agents, and tooling like Kafka or Pub/Sub; strong mentoring and leadership skills.
Python, Kafka, Pub/Sub, vector databases, RAG, LLMs, ChatGPT, Claude, Granola
2mo
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Manager, Software Engineering - Identity Platform
Toronto or Vancouver
$157k-$196k/yr RemoteFull Time
8+ YOE3+ Mgmt8-10+ years engineering; 3+ years leading senior/staff engineers; backend systems; AI-first mindset; cross-functional collaboration.
Java, Spring Boot, Python, Airflow
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