Anvil

Senior Software Developer

We are looking for A great all-rounder who’s comfortable with a variety of technologies. You’ll have either run things in production before, or have a track record of building cool things. Our stack is mostly Clojure, Javascript, Python, Postgres, and container tools – but the right person won’t be put off by jumping into something you haven’t used before. We’re looking for someone who’s comfortable sitting down and diagnosing pathological database performance (even if you’re working it out from the Postgres manual as you go), or whiteboarding out how we should orchestrate our users’ workloads across our server fleet and then writing the code to do it.

You will be Building the platform-as-a-service that hosts and deploys our users’ apps, as well as the Anvil Editor they use to write their code, design their UIs, and edit their databases. There’s a lot to Anvil: a code editor, drag-and-drop designer, version control system, Python-to-JS compiler, an object database built on Postgres, and a deployment platform that can host these apps. It’s all under production load – people run businesses on this thing – and you’ll be touching all of it.

You’ll be working with other seriously good all-rounders, including the founders (PhDs in programming usability, contributors to the Linux kernel and builders of backyard dancing fountains) and senior colleagues (a former maths teacher who went from “teaching Python to students” to “reverse-engineering Anvil’s designer to build a better UI library” in months), as well as our other developers and developer advocates. It’s a smart team, and all of us care deeply about building interesting technology that makes life easier for other developers.

If that sounds like fun, please drop us a line here with your CV and a description of something cool you’ve built or have maintained in production. If you’re excited about the role but you worry you’re not exactly who we’re looking for, we encourage you to apply!

Full-time (part-time/flexible also available); Cambridge, UK; On-site or hybrid; Up to £80k; Visa sponsorship available

Duolingo

Engineering Manager, Client Platform
Careers Page

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in!

At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our substantial 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.

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.

About the role
As an engineering manager in the Platform Area, you will lead one of our teams in supporting the engineering needs of the rest of Duolingo.

Client Platform, Application Stability and Performance team:
This team is charged with improving and maintaining the stability and performance of our Learning application across the Android and iOS platforms. The team builds and owns the tooling that integrates metrics into our experiment analyses to automate finding code areas that need attention and leads architectural initiatives to reinvent the slowest parts of the app. As the Engineering Manager you will craft and implement a vision for maintaining a performant and stable app for Duolingo’s learners, collaborating with product partners and engineering teams across the company.

You will... - Lead a multi-disciplinary team of iOS and Android engineers. - Deliver and maintain a long term roadmap for work within the team and coordinate that planning with product engineering throughout the company. - Provide a unified set of frameworks, tools, and accompanying processes that enable teams to observe and improve the Duolingo mobile experience. - Leverage AI to help drive technical projects and provide innovative solutions in a fast-paced environment. - Guide, prioritize, and communicate the team's quarterly objectives and accomplishments to peer leaders and the broader engineering organization. - Mentor engineers and help cultivate their career aspirations.

You have... - 2+ years of experience leading, managing, and building a team of software engineers. - 8+ years in software development on Android and/or iOS, including using native and 3rd party tooling to analyze and improve application performance and stability. - Have a record of owning the execution of successful technical projects that span multiple engineers over multiple weeks. - Strong written and verbal communication skills.

Exceptional candidates will have... - Experience creating performance pipelines integrated into CI/CD workflows. - Experience building custom internal tooling for mobile developers. - Deep understanding of ANRs and profiling tools such as Perfetto or Xcode Instruments.

Take a peek at how we care for our employees' holistic well-being with our benefits here.

We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact accommodations@duolingo.com.

Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.

We post a multi-level salary range for all of our roles.

This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process. The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.

Salary Range:
$144,500—$294,000 USD

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Anvil

Senior Software Developer