Senior Engineer

Vantage

$100K — $130K *
US-AnywhereRemote in Toronto, ON
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6+ years of software development, testing, design, and architecture experience.
  • Expertise in advanced SQL with skills in query optimization and database indexing.
  • Proficient in Python and Django, with experience building production APIs and services.
  • Proven experience in ensuring database performance during code reviews and debugging.
  • Familiarity with MySQL and/or PostgreSQL databases.
  • Demonstrated ability to troubleshoot production code effectively using logging and metrics.
  • Experience with cloud platforms like Azure, AWS, or GCP.

Responsibilities

  • Oversee application and database performance, focusing on query efficiency and indexing.
  • Lead integrations with external APIs and manage data exchange for reliable connectivity.
  • Develop backend features in Python and Django, ensuring high reliability and low latency.
  • Resolve production issues, enhancing observability through effective logging and metrics.
  • Identify and mitigate performance risks while guiding team practices to prevent regressions.
  • Ensure robust automated test coverage and maintain clear documentation for streamlined delivery.
  • Provide mentorship through code reviews, pairing sessions, and constructive feedback.

Benefits

  • Remote-first work environment with flexibility for home office or travel.
  • Support for home office setup and resources.
  • Annual company retreats to foster team collaboration.
  • Culture that emphasizes mentorship and professional development.
Full Job Description
About the Role

Vantage is hiring a Senior Engineer. In this role you'll focus on building features and integrations with partner systems while acting as a subject matter expert and mentor for our engineering team. Expect heavy use of external APIs to pull data, as well as designing and delivering APIs that both receive data from and push data to external sources. You'll work with large datasets, perform hands-on coding, and keep our services reliable and fast.

In this role you'll be called on to support multiple product teams to uphold sound architecture, high code quality, and on-time delivery. You'll be a trusted go-to reviewer for SQL and Django ORM changes, set clear standards for database and service performance, and guide design and trade-off decisions that keep the platform scalable.

This posting is for an existing vacancy (backfill).

Minimum Requirements
  • 6+ years of professional experience with a strong record in software development, testing, software design, and architecture.
  • Advanced SQL expertise beyond an ORM user. Comfortable reading DB queries, designing indexes, tuning complex joins, and refactoring queries for reliability and speed.
  • Strong Python and Django experience building production services and APIs.
  • Experience as a gatekeeper for database performance in code reviews and in debugging sessions.
  • Experience with MySQL and/or Postgres.
  • Proven ability to troubleshoot and debug production code using logs, metrics, and traces.
  • Experience addressing performance and optimization problems with a demonstrated ability to both diagnose and prevent issues.
  • Experience with cloud platforms such as Azure, AWS, or GCP.
  • Track record of effective mentoring and knowledge sharing.
  • Experience with B2B API integrations.
  • Bonus: Experience with Celery, RabbitMQ, and OTEL. A degree in Computer Science or a related field is a plus.


Role Responsibilities
  • Serve as one of the owners for application and database performance. Review pull requests with an eye for query cost, indexing, and data access patterns, and drive improvements across the codebase.
  • Own external API integrations and data exchange. Build and maintain reliable partner connectors, including authentication, rate limiting, and retries. Design and evolve internal and partner-facing APIs.
  • Design and ship backend features and services in Python and Django with predictable latency and high reliability.
  • Diagnose production issues, lead debugging sessions, and improve observability using logs, metrics, and traces.
  • Proactively identify performance risks, create plans to eliminate them, and coach the team on best practices to prevent regressions.
  • Maintain strong automated test coverage and clear documentation that support safe changes and fast delivery.
  • Mentor engineers through pairing, design reviews, and actionable feedback that raises the standard of the team.
  • Contribute to architectural discussions and solutioning to ensure scalable and effective product decisions.


Remote-First, Based in Toronto
Vantage is proudly headquartered in Toronto, but we're a remote-first team spread across North America (and beyond). Our flexible work philosophy means team members can thrive from wherever they do their best work-whether that's from a home office, a local café, or while adding stamps to their passport. With a remote-friendly setup, home office support, and annual company retreats, we stay connected, collaborative, and energized-no matter the time zone.

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