Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

API Platform Backend Engineer

Perplexity

Build high-traffic APIs with Python, Go, or Rust at Perplexity, shaping infrastructure for developers and AI agents at global scale.

As a backend engineer on the API Platform team, you will design, implement, and operate mission-critical interfaces. Your work spans distributed systems, API gateways, routing, performance optimization, and agent orchestration. You will help define technical strategy as customer and compute demands grow.

Key Responsibilities:

  • Design and operate APIs delivering building blocks for frontier intelligence
  • Evolve gateway authentication, authorization, quotas, and request routing
  • Optimize upstream systems for low latency and high throughput
  • Operate SLOs, on-call responsibilities, and incident response
  • Collaborate on compute, networking, secrets, and security

Requirements:

  • Five-plus years of backend engineering experience
  • Proficiency with Python, Go, or Rust
  • Experience building platforms used by engineering teams
  • Strong knowledge of API design and performance tuning
  • Experience operating gateways, proxies, or routing layers

Bring backend engineering, API design, and infrastructure expertise to Perplexity's platform for developers and agents.

#J-18808-Ljbffr
Vacancy posted 14 hours ago
Similar jobs that could be interesting for youBased on the API Platform Backend Engineer in Toronto, ON vacancy
  •  ...opportunities. Through our innovative platform, Float enables businesses to...  ...About the Role We’re hiring an Engineering Manager for Product Platform & APIs to lead teams building the foundational...  ...Leadership (60%) Contribute directly to backend, platform, and integration code.... 
    Suggested
    Long term contract
    Full time
    Work at office

    Float

    Toronto, ON
    more than 2 months ago
  • $110k - $130k per year

     ...availability and reservation engine at OpenTable. At a high level,...  ...apps, in-house tools, partner APIs) Our Mission: Own and evolve...  ...the inventory and availability platform so that every reservation is...  ...company and works on complex backend systems where reliability and... 
    Suggested
    Full time
    Work at office
    Local area
    Flexible hours
    2 days per week

    Opentable

    Toronto, ON
    2 days ago
  • $120k - $150k per year

     ...most reliable on-demand, logistics engine for delivery! We're looking for...  ...About the Role We’re looking for Backend Engineers to work on both Product and Product Platform based teams. Product focused...  ...oriented architecture, writing REST API’s, unit testing, and... 
    Suggested
    Full time
    Work at office
    Local area

    Doordash

    Toronto, ON
    8 days ago
  •  ...startup. They are building a high-volume data ingestion and API platform that serves as the backbone for major enterprise clients. By...  ...time analytics and products. They are looking for senior-level backend engineers to join their Toronto hub to help architect the next phase of... 
    Suggested
    Full time
    Work at office

    Calliere

    Toronto, ON
    more than 2 months ago
  •  ...is a leading mobile-first work execution platform for industrial and frontline teams. More...  ...The Opportunity We're looking for an Engineering Director to lead MaintainX's Platform division...  ...DevOps, Compliance, Testing Frameworks, Backend Frameworks, Mobile Frameworks, and SRE.... 
    Suggested
    Full time
    Internship

    Maintainx

    Toronto, ON
    13 days ago
  •  ...change it. We’re an AI-powered learning platform that helps organizations create,...  ...Ahead As a Senior Product Engineer II, you bring deep expertise in backend engineering alongside strong working...  ...end to end, working across services, APIs, data layers, and integration boundaries... 
    Long term contract
    Full time
    For contractors
    Work at office
    Immediate start
    Worldwide
    3 days per week

    Docebo

    Toronto, ON
    14 days ago
  • $180k - $220k per year

     ...financial institutions, exchanges, and platforms, and millions of investors worldwide. For...  ...BitGo is looking for a Senior Software Engineer (Backend) to join our Mobile team and help us build...  ...scalable, well abstracted, and robust APIs, libraries, and services to empower our... 
    Full time
    Work at office
    Worldwide

    Bitgo

    Toronto, ON
    12 days ago
  • $118k - $152k per year

     ...The Role Capco is seeking a Senior Software Engineer with strong expertise in C#, .NET, ASP.NET Core, and API development to join our Technology & Engineering practice...  ...experienced, hands-on engineer who brings strong backend development capabilities, an understanding of... 
    Full time
    Internship
    Immediate start

    Capco

    Toronto, ON
    6 days ago
  • $160k - $220k per year

     .... We are a diverse team of engineers, product managers, and designers...  ..., build, and maintain robust backend services. This role requires...  ...augmented workflows, ensuring our platform provides secure, interoperable...  ...UI builder output with direct API-published policies. Develop... 
    Full time
    Local area
    Worldwide
    Shift work

    Okta

    Toronto, ON
    15 days ago
  •  ...prevent fraud and abuse at scale. Design APIs and dashboard experiences for...  ...understanding Radar protections. Develop shared platform and infrastructure for launching Radar...  ...insights into products. Partner with ML engineers and data scientists to bring new signals,... 

    Stripe

    Toronto, ON
    3 days ago
  • $130k - $225k per year

     ...take them. What You'll Do As a Backend Engineer, you will design and deliver scalable backend...  ...services that power Veeva Ostro’s SaaS platform. In this role, you’ll balance high-...  ...Architect and scale high-performance APIs for Veeva Ostro’s SaaS platform Partner... 
    Remote job
    Long term contract
    Full time
    Internship
    Work at office
    Local area
    Work from home

    Veeva Systems

    Toronto, ON
    29 days ago
  • $136k - $160k per year

     ...Expectations are high, and so are the rewards. As a Software Engineer , you’ll build and own backend services, infrastructure, and data systems that support...  ...Chain to provide a best-in-class decentralized platform for trading real-world assets, builds specialized smart... 
    Full time
    Contract work
    Work at office
    Worldwide
    Flexible hours
    Shift work
    Night shift
    Weekend work
    3 days per week

    Robinhood

    Toronto, ON
    14 days ago
  •  ...is a financial infrastructure platform for businesses. Millions of companies...  ...the payment, enterprise APIs that bring Radar’s...  ...What you’ll do As a software engineer on Radar, you’ll build products...  ...and abuse. Your work will span backend services, enterprise APIs, and... 

    Stripe

    Toronto, ON
    4 days ago
  •  ...audiences. Being able to see the bigger picture, you bring people together to effectively prioritize, craft, and achieve plans.  As an Engineering Manager at Justworks, you will help build and oversee a team of software engineers as a player-coach. You are responsible for... 
    Long term contract
    Full time
    Casual work
    Local area

    Justworks

    Toronto, ON
    6 days ago
  •  ...workflow execution. We’re hiring a Senior Backend Engineer to help build and scale the core...  ...our document intelligence and workflow platform. This role is ideal for someone who enjoys...  ...data processing pipelines Contribute to APIs and internal services that power the... 
    Work at office

    Feathery

    Toronto, ON
    a month ago
  • $140k - $160k per year

     ...top performing asset managers? We are looking for a  Manager, Platform Engineering for an existing vacancy in our IS team.  At CC&L Financial Group...  ...and improve resilient system-to-system integrations across APIs, event streams, batch/file transfers, data workflows, vendor platforms... 
    Full time
    Internship
    Work at office
    Remote work

    Connor, Clark

    Toronto, ON
    23 days ago
  • $163k - $200k per year

     .... About the role The Streaming Platform team at Sentry is building the next generation...  ...a system that makes it easy for Sentry engineers to deploy and run Streaming Applications...  ...Kafka, the streaming runtime, high-level APIs, and developer-facing abstractions.... 
    Full time
    Work at office
    3 days per week

    Sentry

    Toronto, ON
    12 days ago
  •  ...industry. Role Overview We're looking for Backend AI Engineers to design, build, and own the core AI...  ...layers, data pipelines, and the APIs and microservices that connect Generative...  ...models in production, and build the reusable platform capabilities that our customer-facing... 
    Long term contract
    Full time

    Nexxa.ai

    Toronto, ON
    a month ago
  • $188k - $242k per year

     ...find solutions to customer challenges Improve the performance, reliability, and scalability of our existing systems Promote engineering excellence through technical leadership, knowledge-sharing and mentorship Add capabilities to our high-volume, fault-tolerant processing... 
    Full time
    Casual work
    Work at office
    Local area

    Justworks

    Toronto, ON
    6 days ago
  •  ...Canada/US. We are currently hiring a SBI Platform Operations Engineer (Tableau Amazon QuickSight & AWS) for...  ...assets and permissions using QuickSight APIs and AWS SDKs. Troubleshoot Athena-...  ...applications utilizing AWS Lambda and API Gateway integrations. Troubleshoot API... 
    Full time
    Work at office

    Tech Talent International

    Toronto, ON
    24 days ago
  • $160k - $220k per year

     ...we want to hear from you. We're looking for an exceptional backend engineer and hands-on architect to help us scale and connect millions of...  ...uptime Responsibilities: Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask... 
    Full time
    Worldwide
    Flexible hours

    Us Mobile

    Toronto, ON
    more than 2 months ago
  • $50 - $70 per hour

     ...About Bree Bree is a consumer finance platform that brings better, faster, and cheaper...  ...About the Role We’re looking for a Backend Engineering Co-op to join us for an 8-month term....  ...Build and improve backend services, APIs, and integrations with mentorship from experienced... 
    Full time
    Temporary work
    Internship
    Work at office
    Remote work

    Bree

    Toronto, ON
    a month ago
  • $117k - $167k per year

     ...Our Data Intelligence team builds backend services that turn data from our SaaS platform into high-value, actionable...  ...our users, and we're solving real engineering problems at scale.   Note: this...  ...Design and implement well-structured APIs to integrate with internal and... 
    Permanent employment
    Full time
    Work at office
    Flexible hours

    Achievers

    Toronto, ON
    more than 2 months ago
  •  ...agentic AI, an enterprise-grade platform, and deep domain expertise, we...  ...— from leadership to engineers — and work together to solve real...  ...Role Overview As a Staff Backend Software Engineer at Harvey, you...  ...distributed systems, REST/gRPC APIs, databases, and scalable service... 
    Long term contract
    Full time
    Work at office
    Relocation package
    Flexible hours

    Harvey, Inc.

    Toronto, ON
    more than 2 months ago
  •  ...institutional-grade enterprise wealth management platform built for financial advisors, multi-...  ...We are looking for a Senior Software Engineer, Backend to join our engineering team and...  ...issues across application logic, data flows, APIs, background jobs, and database layers.... 
    Long term contract
    Full time
    Flexible hours

    d1g1t

    Toronto, ON
    more than 2 months ago
  •  ...service digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver...  ...a dedicated delivery pod to build and run an internal agent platform on AWS Bedrock AgentCore for a global life sciences client. The... 
    Full time

    Appnovation Technologies

    Toronto, ON
    21 days ago
  • $40 - $50 per hour

     ...Dorsey . Position: Software Engineer Type: Contract...  ...RL Studio . Work with APIs , Docker , Linux environments...  ...issues. Ensure apps meet platform validation and deployment...  ...Experience with APIs , backend systems, and debugging. Familiarity... 
    Full time
    Contract work
    Summer work
    Local area
    Remote work

    Mercor

    Toronto, ON
    a month ago
  • $118k - $152k per year

     ...banking by modernizing enterprise platforms and building cloud-native...  ...'re looking for a Staff Java Engineer who combines deep technical expertise...  ...deliver resilient, scalable backend solutions using modern Java...  ..., Spring Boot, Microservices, APIs and event-driven architectures... 
    Long term contract
    Full time
    Internship
    Immediate start

    Capco

    Toronto, ON
    more than 2 months ago
  • $150k - $160k per year

     ...tackling bold challenges, join us! We are a close-knit group of engineers of different stripes - developers, designers, and product...  ...for Lead the design and delivery of scalable backend platforms and distributed systems, leveraging AI-assisted and agentic engineering... 
    Full time
    Work at office
    Remote work
    Work from home
    Flexible hours
    2 days per week
    3 days per week

    Hellofresh

    Toronto, ON
    more than 2 months ago
  •  ...fleet software for trucking use our Universal API to access GPS data, speeding data and...  ...About the role We're looking for an engineer who thrives on building scalable platforms and enjoys tackling hard data and backend challenges. This isn't a data engineering role... 
    Full time
    Work at office
    Flexible hours

    Terminal

    Toronto, ON
    more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to API Platform Backend Engineer. Be the first to apply!