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Research Scientist Junior/Junior+

Remote, Worldwide·Added yesterday (last checked 20 Oct)

Plata Card

24 open roles

Overview

Work mode
Remote (Worldwide)
English
Required
Education
University degree
Benefits
Private health insurance

Visa options

  • The ad doesn’t mention sponsorship

    Not a refusal, but not a yes. Worth asking in your first message.

  • May fit the digital nomad visa

    A remote job for a company outside Spain: you apply yourself, no sponsor needed. It asks for about €2,849 a month in remote income.

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Skills

Requirements

What we're looking for

  • Education: mathematics, engineering, computer science, artificial intelligence or another strong quantitative field
  • Strong foundation in machine learning and deep learning, with hands-on experience building and experimenting with models using PyTorch and LLMs
  • Understanding of dataset design and data mixing for deep learning training
  • Demonstrated understanding of how to maximize the utilization of compute resources and efficiently perform experiments to validate research ideas
  • Solid communication skills
  • High autonomy and ownership

Nice to have

  • Published research in machine learning or deep learning
  • Personal projects or startup experience in AI, machine learning or deep learning
  • Internship experience in research, ML or DL teams
  • B1 or higher English level for effective communication with an international team

Pay & benefits

What you'll get

  • Relocation support to one of our hubs - Serbia, Georgia or Mexico - with assistance for the employee and their family
  • 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

The role

We are looking for a Junior Research Scientist to work on foundation models for financial data. Several of them already run in production on bureau, transactional and graph data; your work is to extend that line to new data domains and new downstream tasks - credit risk, acquisition, anti-fraud, LTV forecasting.

This is a great opportunity for someone at the beginning of their career and who wants to work on large-scale, technically challenging projects.

What you'll do

  • Train self-supervised models on discrete sequences to beat the SOTA and achieve business impact in downstream tasks across Plata, such as: credit risk, transaction anti-fraud, acquisition and LTV forecasting
  • Stay on top of SOTA research, applying the latest NLP and DL techniques to fintech models
  • Work with large multimodal datasets: tabular, behavioral, transactional, device and network, text, time series, graphs
  • Optimize the utilization of compute resources for both training and inference
  • Own and develop solutions end-to-end, from idea to data collection to experiments to training runs to inference optimization to evaluating impact
  • Perform rigorous evaluations
  • Write articles and speak at industry conferences

How you'll work

  • Flexible work from one of our offices or remotely within time zones from GMT-2 to GMT+5

Tech Stack

We work with Python, PyTorch, MLFlow, AWS, Snowflake and modern AI coding tools such as Claude Code, OpenAI Codex and Cursor.

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

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 dare to challenge the status quo of incumbent finances
All open roles at Plata Card
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See all 24 jobs