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Applied AI Engineer

Remote, Worldwide·Added 5 days ago

Plata Card

27 open roles

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Overview

Job details

Fully remote
Only from certain places, per the ad: “remotely within time zones from GMT-2 to GMT+5”
A relocation package
Help with the move, per the ad.

Requirements

Have the right to work in Spain
Plata Card doesn't mention sponsorship, but this role may fit the Digital nomad visa.
Work in English
English is required, per the ad.
University degree
“A bachelor's/ master's degree or PhD in a quantitative discipline” — per the ad.

Pay & benefits

What you'll get

Relocation support to one of our hubs - Cyprus, Serbia, Spain, Georgia or Kazakhstan - with assistance for the employee and their family
Flexible work from one of our offices or remotely within time zones from GMT-2 to GMT+5
Healthcare Coverage
Education Budget: Language lessons, professional training and certifications
Wellness Budget: Mental health and fitness activity reimbursements
Vacation policy: 20 days of annual leave and paid sick leave

Requirements

What we're looking for

Experience in a Machine Learning role
Experience with agent frameworks or tool-using LLM systems
Experience designing evaluations for LLM systems - representative task sets, automated graders, production signals, and human review
Experience developing and launching AI products or features from scratch as an AI/ML/DS engineer
Big-picture thinking to diagnose the right problem and productionise research
You want to turn cutting-edge research and model capabilities into products that work for real users
High autonomy and ownership
English at B1 or above for effective communication with an international team

Nice to have

A bachelor's/ master's degree or PhD in a quantitative discipline
Scientific publications in ML, NLP, or a related field
Medals from olympiads - maths, physics, or programming

The role

We are looking for Applied AI Engineers to join one of our teams - AI Tools team, CRM team, and others.

Our AI teams turn everyday business problems into working software. We automate processes across the company and put AI tools directly in the hands of the people who need them - so time goes into decisions, not routine. For example, we build in-app support experiences like Plata's customer-facing support chatbot.

Wherever you land, you'll be building production systems on top of the most capable models available, from customer-facing assistants to back-office automation that quietly saves thousands of hours.

You'll collaborate cross-functionally with backend engineers, product teams, and business owners to deliver automated, scalable solutions that change how the company works day to day.

What you'll do

Challenges that await you

Building AI-powered products from the ground up - assistants, chatbots, copilots, and internal automation.
Improving model quality where it matters most - retrieval, prompting, fine-tuning, and choosing the right model for each task
Owning LLM pipelines end-to-end - from model selection, retrieval, and prompting strategy to release and monitoring in production.
Investigating and resolving production issues
Building data loops that turn real usage into stronger evaluation datasets.
Designing the evaluation methodology for our AI systems: what "good" means, how it's measured, and how we know a change is real
Running experiments and A/B tests, and drawing conclusions that hold up under scrutiny
Partnering with engineers and business owners to turn a modelling result into a shipped improvement

About Plata Card

Plata Card is a Mexican fintech company that provides digital payment and credit solutions, primarily through a mobile app and a physical card. The company focuses on financial inclusion, offering credit products to underserved segments in Mexico. It operates with a technology-driven approach, building its own software and data infrastructure to manage risk, customer support, and product development.

In Spain, Plata Card has established a significant technology and operations hub in Madrid, where it hires for roles in engineering, data, risk, and IT support. The company's culture emphasizes automation, data-driven decision-making, and agile development. For international professionals, the Madrid office offers opportunities to work in a fast-growing fintech with a Latin American focus, often requiring Spanish language skills but also valuing diverse technical expertise.

Founded: 2018
Employees: 500–1,000
Headquarters: Mexico City, Mexico
In Spain: Madrid
Website: platacard.mx

Good to know if you are moving

Plata Card's Madrid office is a key technology hub, offering roles in engineering, data, and IT, which may provide opportunities for international professionals to work in a Spanish-speaking environment.
The company focuses on financial inclusion, which can be appealing for professionals interested in impactful fintech work.
Many roles require proficiency in Spanish, but some technical positions may be open to English speakers, depending on the team.
The company uses modern tech stacks like Golang and cloud-based data warehousing, offering exposure to current technologies.
As a growing fintech, there may be opportunities for career advancement and taking on significant responsibilities early on.

In their own words

About the company & team

Innovative Spirit: A commitment to creativity and groundbreaking solutions
Honest Feedback: valuing open, transparent communication
Supportive Team: a strong, collaborative community
Celebrating Achievements: recognizing our wins together
High-Tech Environment: a team full of smart and revolutionary people who date to challenge the status quo of incumbent finances

All open roles at Plata Card