PromotedHiringCafe
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
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
Staff Backend Engineer
Toronto, Ontario, Canada
HybridFull Time
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
4d
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Senior Backend Engineer - Payroll - Toronto
Toronto or New York City or Canada
$148k-$189k/yr OnsiteFull Time
6+ YOE6+ years backend software engineering for SaaS; located in Toronto metro; experience shipping customer-facing features; Java/Kotlin/Scala; testing methodologies (unit testing, TDD); AWS; relational databases (PostgreSQL, MySQL).
Java, Kotlin, Scala, AWS, PostgreSQL, MySQL, TDD
3mo
Save
Mark Applied
Hide
Senior Backend Engineer - MTS 1
Toronto, Ontario, Canada
$142k-$190k/yr HybridFull Time
3+ YOE5+ years backend experience with Java/Scala, Spring Boot, RESTful APIs, event-driven systems; Node.js; SQL/NoSQL; CI/CD; strong CS fundamentals.
Java, Scala, Spring Boot, Node.js, Kafka, RabbitMQ, Oracle, PostgreSQL, MySQL, Cassandra, MongoDB, Jenkins, GitHub Actions, GraphQL, LLM tooling
3w
Save
Mark Applied
Hide
Senior Backend Engineer - Agentic Pentest
Toronto or Tel Aviv-Yafo or Canada or United States
RemoteFull Time
5+ YOEBachelor's degree in CS or related field, 5+ years backend experience, proficiency with Node.js, SQL/NoSQL, cloud platforms and microservices, active use of AI tools (Copilot, LLMs), strong problem-solving and mentoring skills.
Copilot, LLMs, Node.js, SQL, NoSQL, AWS, GCP, Docker, Kubernetes
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Staff Java Engineer (Backend)
Toronto, Ontario, Canada
$118k-$152k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience with expert Java and Spring Boot; experience with microservices, REST APIs, cloud platforms (AWS/Azure/GCP), CI/CD, Kubernetes; strong mentoring and architectural skills.
Java, Spring Boot, Microservices, REST APIs, CI/CD, Kubernetes, Kafka, AWS, Azure, GCP, DevSecOps
4w
Save
Mark Applied
Hide
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
3d
Save
Mark Applied
Hide
Software Engineer, Global Payments Technology (Backend Java Developer) (268500)
Scarborough or Toronto
OnsiteFull Time
5+ YOE5+ years Java development experience with Java 8+, Spring Boot, Kafka, relational databases and SQL; REST APIs, Git, Maven/Gradle, and Agile experience required.
Java, Spring Boot, Apache Kafka, PostgreSQL, MySQL, Oracle, SQL Server, SQL, REST, Git, Maven, Gradle, CI/CD, AWS, Azure, GCP, Docker
1w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Senior Full Stack Developer
Toronto, Ontario, Canada
OnsiteFull Time
4+ YOE4+ years developing and shipping production code; front-end with HTML/CSS, React, JavaScript/TypeScript; back-end with Python and relational databases (PostgreSQL); APIs, authentication, Git, CI/CD, Ansible, automated testing, ML/AI frameworks; experience building scalable, fault-tolerant systems.
HTML/CSS, React, Front-End Framework/Libraries, JavaScript, TypeScript, Python, PostgreSQL, Git, CI/CD, Ansible, Machine Learning/AI Frameworks, N8N, Tines, Databricks, Jira
1mo
Save
Mark Applied
Hide
Lead Full Stack Developer - Delo (Toronto, ON, CA, M5C 3G7)
Toronto or Montreal
$84k-$175k/yr HybridFull Time
10+ YOE10+ years software engineering experience; strong React/Next.js front-end and Python/FastAPI back-end; production systems, event-driven architectures, PostgreSQL, MongoDB, Elasticsearch, LLM experience, CI/CD, and strong API design skills.
React, Next.js, Python, FastAPI, PostgreSQL, MongoDB, Elasticsearch, SQL, NoSQL, LLM, Cursor, Claude Code, Codex, pgvector, milvus, Docker, Kubernetes, AWS, Azure, GCP, CI/CD
2w
Save
Mark Applied
Hide
Senior Lead AI Application Engineer
Toronto or Calgary
OnsiteFull Time
5+ YOEBachelor's degree or equivalent,5+ years building production full‑stack systems with React/TypeScript and Node.js/Java/Python back ends,multi‑agent engineering,cloud‑native Kubernetes CI/CD,API and data integration,DevSecOps and observability experience.
React, TypeScript, Node.js, Express, Python, FastAPI, Java, Spring Boot, REST, gRPC, GraphQL, LangGraph, AutoGen, CrewAI, FAISS, pgvector, Milvus, Pinecone, Docker, GitHub Actions, Jenkins, Argo CD, Terraform, Helm, Kubernetes, Kafka, Redis, OpenTelemetry, Grafana, Prometheus, OAuth2, OIDC, Vault, KMS, Apigee, Kong, Istio, Linkerd, Snowflake, Postgres, MongoDB, ServiceNow, DeepSpeed, Triton, ONNX, Ray, SageMaker
Explore Jobs