Senior/Software Engineer II, Backend

Duolingo
Pittsburgh
Workplace: OnsiteFull timeUSD 182,800 - 247,300 annuallyFunction: Software EngineeringEducation: bachelorsSkills: []

Build and operate reliable, scalable backend systems for Duolingo’s Ads team, including ad serving, mediation, demand, and in-product ad formats. Partner with product design, data science, machine learning, and ad operations to develop backend services and infrastructure end-to-end—from design and milestones to production. Contribute strong systems thinking, experiment-driven improvements, and ownership of complex technical problems that scale ads revenue while delighting learners.

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FursaFursa
Duolingo
Duolingo
2 months ago

Senior/Software Engineer II, Backend

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 2 hours agoStatus: Live

Job Summary

Build and operate reliable, scalable backend systems for Duolingo’s Ads team, including ad serving, mediation, demand, and in-product ad formats. Partner with product design, data science, machine learning, and ad operations to develop backend services and infrastructure end-to-end—from design and milestones to production. Contribute strong systems thinking, experiment-driven improvements, and ownership of complex technical problems that scale ads revenue while delighting learners.
Location: Pittsburgh
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Collaborate on software projects with product design and backend aspects
  • •Develop, release, and maintain backend services and/or infrastructure
  • •Lead individual project priorities and milestones to ensure continuous shipping
  • •Own complex technical problems from design through production
  • •Work cross-functionally with product, design, data science, machine learning, and ad operations

Pay and Benefits

Salary: USD 182,800 - 247,300 annually
Equity and Bonus:Equity

Key Requirements

  • •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 experience building high-traffic APIs using public cloud providers and/or observability tooling
Education:Bachelor's in Computer Science or a related technical field
Languages:English
Tech Stack:JavaPythonKotlinPublic cloud providersAPIsOpenTelemetryGrafanaPrometheusDataDogDatabasesSQL

Company Brief

Duolingo
Duolingo develops a gamified language-learning platform offering courses, practice exercises, and assessment tools for learners worldwide via web and mobile apps, using adaptive algorithms and motivational features to drive engagement and retention.
Industry: EdTech
Company Size: Enterprise (1,001+ employees)
Revenue: USD 500M to 1B
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Pittsburgh, United States
Founded: 2011
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