AI Engineer (Superhuman Mail)

Brazil · Mexico · Argentina, remote, mid, full time, BRL 5,62,000–6,69,000 / year, 4–6 years

posted 04 Nov 2026

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TurboPuffer
TypeScript
Go
Redis
Postgres
MCP
LLM
AWS
Kubernetes
Python

About the role

Superhuman is building the AI productivity platform that works everywhere people do, and Superhuman Mail is central to how people communicate and get work done. Today we are…The fastest email experience in the world

* Loved and adored: see what our customers say

On the Mail team, our AI Engineers build the platform behind our intelligent, agentic experiences, from the MCP layer that connects Superhuman to the tools people work in, to the personalization that makes the product feel like it knows you.

This is engineering at the intersection of backend systems and applied AI. You’ll build the tools and standards that let agents take real action for users, and help teams across Superhuman ship AI features faster. We use many models, from OpenAI and Anthropic to open source, and a single feature like Ask AI can route across several depending on the task. You’ll help us find the best model for each job, no matter who built it.

Superhuman’s engineers have the freedom to innovate and shape the product roadmap. You can hear more from our team on our technical blog .

As an AI Engineer, you will:

* Build and evolve Superhuman Mail’s MCP: new tools, new standards, and new ways for agents to deliver value to end users

* Design and ship agentic workflows and personalization features at scale

* Build evaluation systems that measure quality and catch regressions as prompts, models, and tools change

* Help choose the right models for each task and keep exploring new ones

* Partner with teams across Superhuman to give them the AI building blocks they need

* Ship quickly while learning, and adjust course as the industry shifts

* (ML-leaning variant) Help shape our modeling approach, including what data to collect and how to generate it

* Technologies we use: Go, Postgres, Redis, Kubernetes, AWS, TurboPuffer

What they are looking for

* 4-6+ years of software engineering experience with a strong backend foundation (Python or TypeScript is great, Go is a plus)

* Hands-on experience building and shipping LLM-powered features in production, such as agents or agentic loops

Read from jobs.underscore.vc, last seen 3d ago.

What comes with it

Your engagement with Superhuman is facilitated through an Employer of Record (EOR). As your legal employer, the EOR administers your employment, payroll, and applicable benefits locally.

Our EOR offers competitive compensation along with a comprehensive benefits package that includes the following and more:

* Health Insurance: Medical and dental coverage for you and your family

* Paid Parental Leave: Statutory or 10 weeks (whichever is greater)

* Paid Maternity Leave: Statutory or 10 weeks (whichever is greater)

* Generous PTO: Statutory or 20 vacation days (whichever is greater) regional paid holidays, and a 20-day sabbatical after 5 years of service

* Dependent & Pet Care Coverage: up to the local-currency equivalent of $950 USD while traveling for business

* Lifestyle & Wellness Perks: up to the local-currency equivalent of $120 USD/quarter wellness budget

* Learning & Development: up to the local-currency equivalent of $2,000 USD annual budget for books, courses, and professional training

* Work From Home: Statutory or up to the local currency equivalent of $200 USD (whichever is greater)

Specific benefits and administration vary by country and EOR requirements.

The expected base salary range for this role varies by country of residence:

* Brazil: R$562,000 - R$669,000

* Argentina: ARS $152,000,000 - $189,000,000

* Mexico: MXN $1,928,000 - $2,294,000

Final compensation within these ranges is determined based on experience, qualifications, and local market factors. Ranges are administered through the EOR in accordance with local requirements.

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. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, ancestry, national origin, citizenship, age, marital status, veteran status, disability status, political belief, or any other characteristic protected by law. Superhuman is an equal opportunity employer and a participant in the US federal E-Verify program (US). We also abide by the Employment Equity Act (Canada).