Data & AI Engineer (Junior) - SerdatIA

Data & AI Engineer (Junior) - SerdatIA

Seresco
Remote, SpainCompetitiveRemoteAdded todayEntryPermanent🇪🇸Spanish: Fluent

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About the role

At SerdatIA we are looking for a Junior Data & AI Engineer to join our Data & AI team.

This Pull Request represents the incorporation of a new collaborator who will help us design, build and evolve scalable data platforms and intelligent solutions.

If you enjoy solving complex problems, working with modern technologies and turning data into real value for the business, this PR may be for you.

What we're looking for

💻 Technical Skills

- **Programming fundamentals**: Strong understanding of OOP and structured/functional concepts, data structures and algorithms (lists, dictionaries, recursion, Big O), Git in a team (commits, branches, PRs) and clean code (DRY, short functions).

- **AI code assistants**: Daily and efficient use of tools such as GitHub Copilot, Claude Code or Gemini CLI to support development, testing and documentation, always maintaining your own technical judgment.

- **Application and API development**: Consumption and design of simple REST endpoints (HTTP verbs, JSON, token/API key authentication), relational databases (basic SQL: SELECT, JOIN, INSERT/UPDATE) and NoSQL concepts, unit testing and debugging with hypothesis formulation.

- **Architecture and deployment (introductory level)**: Conceptual understanding of microservices, use of Docker and docker-compose for local environments, understanding and modification of CI/CD pipelines, and knowledge of messaging queues (Kafka, RabbitMQ).

- **Data handling and hygiene**: Data manipulation in CSV, JSON and Parquet with Python (pandas); detection of null values, duplicates and inconsistencies; knowledge of data quality (*garbage in, garbage out*), privacy (PII) and basic descriptive statistics.

- **Machine Learning and Deep Learning (conceptual foundation)**: Understanding of supervised/unsupervised learning, overfitting, intuition about neural networks and Transformers; introductory experience with libraries such as scikit-learn, PyTorch or TensorFlow.

- **Consumption and integration of Generative AI**: Calls and integration of LLM APIs (OpenAI, Anthropic, Azure AI) from Python/JavaScript, context management, tokens, temperature and secure handling of API keys using environment variables.

- **Generative AI architectures**: Practical understanding of RAG patterns, generation and use of embeddings, vector databases, agents with tool calling and knowledge of the MCP standard.

What you'll get

📝 What can we offer you?

Full-time

Permanent contract

Professional career development, based on the value you bring

100% remote position

In addition, if you join the Grupo Seresco team, you can enjoy benefits such as:

You will enjoy 22 working days of vacation, plus 2 personal days and Christmas Eve or New Year's Eve off.

Flexible working hours, we enjoy 3 months of continuous morning shifts.

Exclusive discounts on a wide range of services and products (travel, automotive, fashion, leisure, sports, culture, home, technology, gastronomy) through the Corporate Benefits platform.

At SERESCO we have the possibility to configure what we want to do with our gross salary (Serflex program), being able to use part of it flexibly. You can choose from the following services: Medical Insurance (Sanitas, IMQ or Caser) including family members, Gourmet Check/Card, Transport Card and Daycare Check.

There is also a very interesting incentive plan if you help us find professionals like you. 

Since here we help to find/create new projects, there is also a business acquisition reward plan.

Support fund for formal studies. 

In-person and online training, so you can stay up to date at your own pace.

How you'll work

full-time

Permanent

remote

Pull Request Description

Why are we opening this PR?

Our team keeps growing and we are looking for an engineer capable of contributing to real Big Data and Artificial Intelligence projects.

You will work alongside engineers, architects and data specialists building solutions based on cloud architectures, Big Data processing and Generative AI.

Included changes

📊 Data Engineering

Building data pipelines from extraction and ingestion through to processing and availability Development of ETL / ELT processes Data integration from multiple structured, semi-structured and unstructured sources Real experience in Batch and Streaming or NRT processes Big Data processing with real cases of high-volume projects Process optimization, Spark job optimization Basic principles of Lakehouse architectures Data modeling and transformation for different business cases Real work applying good data quality, governance and traceability practices Monitoring and resolution of incidents of various natures

Cloud Engineering

Development of Cloud solutions with real production experience Design of architectures using Cloud services from any of the major Cloud providers (Azure, AWS, GCP) Automation of production deployment processes with DevOps and CI/CD tools Some degree of experience in FinOps tasks for performance and cost optimization Configuration and optimization of storage, processing and computing services Monitoring and troubleshooting Engineer-level certifications or higher in Azure, AWS and/or GCP are highly valued.

Artificial Intelligence

Design and implementation of solutions based on LLMs Development of business-oriented Generative AI applications Building RAG architectures Integration of language models with enterprise knowledge sources Work with vector databases Integration of AI APIs and Cloud AI services Design of efficient prompts Implementation of solutions with frameworks such as LangChain, LangGraph, Pipecat, etc. Participation in the industrialization and deployment of AI solutions in production environments Application of good practices for security, governance and responsible use of AI

Repository Structure

bigdata-ai-engineer/

├── programming-languages/

│ ├── Java

│ ├── Python

│ └── Scala

├── data-platform/

│ ├── pipelines

│ ├── spark-jobs

│ ├── databricks

│ ├── delta-lake

│ └── sql

├── artificial-intelligence/

│ ├── llm-applications

│ ├── rag-solutions

│ ├── ai-agents

│ ├── vector-search

│ └── prompt-engineering

├── cloud/

│ ├── microsoft-azure

│ ├── amazon-web-services

│ └── google-cloud-platform

└── engineering/

├── git

├── docker

├── ci-cd

├── azure-devops

├── clean-code

├── testing

└── documentation

Acceptance Criteria

This PR will be approved if:

Data & AI Mindset

- **Critical thinking about AI**: Active verification of outputs, detection of hallucinations and understanding of risks and permissions when allowing agents to execute actions.

- **Data culture and quality**: Awareness that clean, well-governed data is the foundation of the performance of any AI model or solution.

- **Ethics and privacy**: Rigor in protecting sensitive data and complying with good security practices.

- **Technical judgment in tools**: Sensitivity to differences in capabilities, latency and costs between different AI providers and models.

Team Collaboration

- **Curiosity and continuous self-learning**: Proactivity in exploring new tools and libraries in the fast-paced AI ecosystem and sharing knowledge.

- **Communication and transparency**: Ability to ask questions in a timely manner, document solutions, and request/receive constructive feedback.

- **Team integration**: Ease of collaborating closely with senior profiles and data specialists, learning from their experience and contributing to the team.

You'll most likely need Spanish to apply.This job was automatically translated to English, .

Remote

Knowledge Operations Specialist (SOPs & Consultations)

Remote (Global) / San Francisco, United States / Remote (Africa, Central & South America, the Caribbean) / Lagos, Nigeria / Remote (APAC) / Manila, Philippines / Remote (South Africa) / Johannesburg, South Africa / Remote (Canada) / Canada / Remote (Philippines) / Manilla, Philippines
🇬🇧
1d ago
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