Machine Learning Engineer, Mobile

Grammarly team members in this role must be based in Poland or Germany and be able to collaborate in person 2 weeks per quarter, traveling if necessary to the hub(s) where the team is based.

The opportunity 

Grammarly is the world’s leading AI writing assistance company trusted by over 30 million people and 70,000 professional teams every day. From instantly creating a first draft to perfecting every message, Grammarly’s product offerings help people at 96% of the Fortune 500 get their point across—and get results. Grammarly has been profitable for over a decade because we’ve stayed true to our values and built an enterprise-grade product that’s secure, reliable, and helps people do their best work—without selling their data. We’re proud to be one of Inc.’s best workplaces, a Glassdoor Best Place to Work, one of TIME’s 100 Most Influential Companies, and one of Fast Company’s Most Innovative Companies in AI.

We are seeking a skilled Machine Learning Engineer to join our Mobile team and help us achieve our ambitious goals. As the first Machine Learning Engineer on our Mobile Team, this person will be instrumental in developing and deploying AI technologies directly to user devices, enhancing their communication experience across mobile platforms. Our Machine Learning Engineer’s contributions will directly enhance features that improve everyday communication for millions of users and give you a voice in influencing the Mobile Product Roadmap.

Grammarly’s engineers and researchers have the freedom to innovate and uncover breakthroughs—and, in turn, influence our product roadmap. The complexity of our technical challenges is growing rapidly as we scale our interfaces, algorithms, and infrastructure. You can hear more from our team on our technical blog.

Your impact

As a Machine Learning Engineer on our Mobile Team, you will:

• Design, develop, and optimize machine learning models that operate efficiently on mobile devices at scale.
• Collaborate with mobile developers to integrate ML technologies seamlessly into Grammarly’s iOS and Android applications.
• Own improving the NLP algorithms that power the iOS keyboard, including autocorrect, key prediction, autocomplete, and swipe typing.
• Launch and monitor the deployment of ML models via A/B testing and diagnose and respond to issues that arise with models in the field.
• Lead cross-functional initiatives, collaborating closely with teams to bring new machine-learning-driven features from concept to deployment.
• Effectively communicate technical machine learning results in a business context where most people are not machine learning experts, ensuring team clarity and alignment.
• Leverage the latest academic research to develop cutting-edge solutions, advancing Grammarly’s leadership in AI-enhanced communication tools.

We’re looking for someone who

• Embodies our EAGER values—is ethical, adaptable, gritty, empathetic, and remarkable.
• Is inspired by our MOVE principles, which are the blueprint for how things get done at Grammarly: move fast and learn faster, obsess about creating customer value, value impact over activity, and embrace healthy disagreement rooted in trust.
• Is able to collaborate in person 2 weeks per quarter, traveling if necessary to the hub where the team is based.
• Has 8 years of overall software development experience and 4 years in machine learning, with a strong focus on natural language processing and on-device machine learning.
• Is proficient in multiple dev environments like Python and C++.
• Has experience in development for Mobile iOS or Android platforms.
• Understands data structures and algorithms at a level sufficient to write performant code when working with large datasets or incoming data streams.
• Has enough experience with academic research to collaborate with researchers and be comfortable reading and implementing papers to reproduce their results.

Support for you, professionally and personally

• Professional growth: We believe that autonomy and trust are key to empowering our team members to do their best, most innovative work in a way that aligns with their interests, talents, and well-being. We also support professional development and advancement with training, coaching, and regular feedback.
• A connected team: Grammarly builds a product that helps people connect, and we apply this mindset to our own team. Our remote-first hybrid model enables a highly collaborative culture supported by our EAGER (ethical, adaptable, gritty, empathetic, and remarkable) values. We work to foster belonging among team members in a variety of ways. This includes our employee resource groups, Grammarly Circles, which promote connection among those with shared identities including BIPOC and LGBTQIA+ team members, women, and parents. We also celebrate our colleagues and accomplishments with global, local, and team-specific programs. 

We encourage you to apply

At Grammarly, we value our differences, and we encourage all—especially those whose identities are traditionally underrepresented in tech organizations—to apply. Grammarly is an equal opportunity company. We do not discriminate on the basis of race or ethnic origin, religion or belief, color, gender expression or identity, sexual orientation, sexual identity, national origin, citizenship, age, marital status, veteran status, disability status, criminal prosecution, judgment in a criminal case, or any other characteristic protected by law.

For more details about the personal data Grammarly collects during the recruitment process, for what purposes, and how you can address your rights, please see the Grammarly Data Privacy Notice for Candidates here.

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