Software Engineer II, Backend

Content Infrastructure

As a backend engineer on the Content Infrastructure Team, you'll build features that make up the core backbone of the learning experience on Duolingo. Our short-form lessons are where learners spend the majority of their time on the app, and our team's mission is to build and update infrastructure to enable quick iteration and improve content quality in these sessions. You'll work on scaling new exercise types that support our learners in practicing speaking or grammar in bite-sized formats, as well as re-architecting our infrastructure in other ways to help set our teams up for success in the future.

You'll be working on a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You'll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes — while doing work that's both fun and meaningful.

Ads

Duolingo's Monetization pillar builds the systems that fund our mission — from subscription packaging and advertising to ML-powered personalization. As a Senior iOS Engineer on the Ads team, you'll work on a product engineering team responsible for growing and scaling Duolingo's ads business: high-quality ads that delight learners, fit seamlessly into the product experience, and meaningfully contribute to our bottom line.

• Collaborate on software projects with product design and backend aspects
• Develop, release, and maintain backend services and/or infrastructure
• Lead individual project priorities, milestones, and ensure we're always shipping ✅

You have...

• A Bachelor’s degree in Computer Science or a related technical field
• Strong competencies in data structures, algorithms, and software design
• Experience programming in Java, Python, or Kotlin
• Solid understanding of one or more database technologies

⭐ Exceptional candidates will have...

• Industry experience building high-traffic APIs using public cloud providers
• Experience with industry observability technology, such as OpenTelemetry, Grafana, Prometheus, or DataDog.

Pay

The offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation.

Benefits

We encourage you to take a look at how we care for our employees' holistic well-being with our benefits here.