Software Engineer II - Backend

This hybrid role requires working in the Toronto office two days per week. With millions of diners, 70,000+ restaurant partners and 25+ years of experience, OpenTable, part of Booking Holdings, Inc. (NASDAQ: BKNG), is an industry leader with a passion for helping restaurants thrive. Our world-class technology empowers restaurants to focus on what matters most – their team, their guests, and their bottom line – while enabling diners to discover and book the perfect restaurant for every occasion. Every employee at OpenTable has a tangible impact on what we do and how we do it. You’ll also be part of a global team and its portfolio of metasearch brands. Hospitality is all about taking care of others, and it defines our culture. What the Team Does The TMS Inventory team manages the core availability and reservation engine at OpenTable. At a high level, we own: • The Inventory & Availability Engine — a real-time system that computes bookable slots for restaurants based on capacity, constraints, table configuration, and reservation history • Core reservation flows — inventory consumption, slot locking, and availability calculations • The availability publishing pipeline — ensuring that when restaurants update their schedules, accurate availability propagates across all surfaces (diner-facing apps, in-house tools, partner APIs) Our Mission: Own and evolve the inventory and availability platform so that every reservation is backed by accurate, real-time capacity data — ensuring restaurants never get overbooked and diners always see truthful availability. This team owns a mission-critical system for the company and works on complex backend systems where reliability and correctness are paramount . Team Structure The team includes engineers ranging from SE2 through Principal level , with a strong culture of code review, design docs, and collaborative problem-solving. We own the entire software lifecycle for our services — we build, deploy, monitor, and operate them in production. Technologies Used • Primary language: C# / .NET (must have) • Infrastructure: Kubernetes, Helm, TeamCity CI/CD • Observability: OpenTelemetry, Grafana, Prometheus, ELK • Messaging: Kafka (event-driven architecture) • Databases: Redis, MongoDB • Source Control: GitHub Day-to-Day Responsibilities An engineer on this team will: • Design and implement backend features and services that support inventory, availability, and reservation flows • Work across the full development lifecycle — from technical design and coding to testing, deployment, monitoring, and production support • Debug production issues using logs, metrics, traces, and dashboards • Contribute to improving system reliability, correctness, and operational readiness • Partner with Product, Design, and peer engineering teams to clarify requirements and make thoughtful technical tradeoffs • Participate in code reviews, technical discussions, and design documentation • Help maintain and evolve a complex distributed backend platform that sits in the critical path of the reservation experience This posting is for an existing vacancy. Benefits and Perks • Work from (almost) anywhere for up to 20 days per year • Focus on mental health and well-being: • Company-paid therapy sessions through SpringHealth • Company-paid subscription to Headspace • Annual company-wide week off a year - the whole team fully recharges (and returns without a pile-up of work!) • Paid parental leave • Generous paid vacation + time off for your birthday • Paid volunteer time • Focus on your career growth: • Development Dollars • Leadership development • Access to thousands of on-demand e-learnings • Travel Discounts • Employee Resource Groups • 20 days of paid time off • Private health and dental