Superhuman offers a dynamic hybrid working model for this role. This flexible approach gives team members the best of both worlds: plenty of focus time along with in-person collaboration that helps foster trust, innovation, and a strong team culture.

About Superhuman

Superhuman is the AI productivity platform on a mission to unlock the superhuman potential in everyone. The Superhuman suite of apps and agents brings AI wherever people work, integrating with over 1 million applications and websites. The company’s products include Grammarly’s writing assistance, Superhuman Docs’s collaborative workspaces, Mail’s inbox management, and Go, the proactive AI assistant that understands context and delivers help automatically. Founded in 2009, Superhuman empowers over 40 million people, 50,000 organizations, and 3,000 educational institutions worldwide to eliminate busywork and focus on what matters. Learn more at and about our values here.

The Opportunity

We're looking for an AI Engineer to join our team in Porto and help build the next generation of AI-native productivity inside Superhuman, specifically the agent platform where multiple AI agents collaborate to solve complex user problems. The ideal candidate is deeply excited about what's possible with LLMs today, has experience building with agents and AI workflows, and brings strong product sense alongside their engineering skills. This is a high-autonomy, high-impact role on a foundational team that moves fast from idea to production.

We are evolving Superhuman Docs' collaborative workspaces so that users can solve arbitrarily complex tasks with agents, leveraging Superhuman’s ubiquitous UI.

As an AI Engineer on this team, you will be at the heart of our company's transformation.

In this role, you will:

• Shape the Future of Productivity: Play a pivotal role in evolving Grammarly from a beloved writing assistant into an indispensable, AI-native productivity suite for enterprises.

• Build a Groundbreaking AI Agent Platform: Spearhead the development of a new platform where multiple AI agents collaborate to solve complex user problems. You will be responsible for the core orchestration, routing, and planning systems.

• Own Critical ML Systems: Develop and deploy sophisticated ML models for core product experiences, including search ranking and proactive suggestions that anticipate user needs.

• Integrate Cutting-Edge AI: Work at the forefront of the AI landscape, building ML components that integrate with the latest and most powerful models to create magical user experiences.

• Thrive in a High-Impact Environment: Join a foundational team where you will operate with a high degree of autonomy and product sense in a fast-paced, ambiguous environment.

• Ship Your Work Fast: Move quickly from idea to impact. We have no red tape or endless approvals—just a focus on making meaningful contributions to a platform used by millions.

Qualifications

• 5+ years of industry experience as a machine learning engineer or applied research scientist.

• A deep understanding of modern algorithms and approaches to ML, NLP, and LLMs.

• Experience building LLM-based products.

• A deep care about the end-user experience and strives to ensure high quality.

• Ability to work independently with minimal guidance, proactively manage tasks and priorities across multiple projects, analyze and execute work efficiently, collaborate effectively with cross-functional teams, and thrive in fast-paced, results-driven environments.

• MS/PhD in Computer Science is a nice-to-have.

We invite you to share your knowledge, experience, and goals with us to help us find the best team match for you. Tell us your superpower!

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

• A connected team: Superhuman 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 rooted in our values. We work to foster belonging among team members in a variety of ways. This includes our team member resource groups, Superhuman 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.

• Comprehensive benefits for candidates based in Portugal: Superhuman offers all team members competitive pay along with a benefits package encompassing life care (including mental health care and risk benefits) and ample and defined time off. We also offer support to set up a home office, wellness and pet care stipends, learning and development opportunities, and more.

• Relocation Support: Superhuman provides relocation support to make your move to Berlin seamless. Our package includes visa assistance, destination services to help you and your family settle in comfortably, and a relocation bonus to cover additional expenses, such as temporary housing.

We encourage you to apply

At Superhuman, we value our differences, and we encourage all—especially those whose identities are traditionally underrepresented in tech organizations—to apply. Superhuman 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 Superhuman collects during the recruitment process, for what purposes, and how you can address your rights, please see the Superhuman Data Privacy Notice for Candidates here.