Senior Software Engineer at Luzia

Luzia logo
Luzia

Senior Software Engineer

es flag
Spain

Hybrid

Full Time

#Engineering

#AI

#Software Development

#Python

#Cloud

#API Development

#Optimization

#Backend Development

#Data

#Continuous Integration

#Testing

#Deployment

#Quality

Luzia is looking for a Senior Software Engineer

Sign up to unlock quick summaries and profile fit assessments

Location: Hybrid (Spain)
Offices: Madrid, Barcelona, and Villena
*Please submit your CV in English
At Luzia, we believe in flexibility. We operate in a hybrid model, blending remote work with in-office collaboration. We encourage time in the office to foster team collaboration and innovation. For this role, we are seeking candidates based in one of our hubs across Spain.
About Us
Luzia is Europe’s fastest-growing AI company, backed by top-tier Silicon Valley investors (Khosla Ventures, A*). Our mission is to revolutionize conversational AI by setting new standards in natural language processing, leveraging cutting-edge large language models (LLMs) and advanced alignment techniques.
As a Senior Software Engineer, you’ll join our founding engineering team, driving the development of scalable, high-impact solutions that power our AI-driven products.

Responsibilities
  • Lead Backend Development: Design, build, and deploy backend services with a focus on scalability, performance, and robustness, particularly for applications utilizing LLMs.
  • Cross-Functional Collaboration: Work closely with product, AI, and engineering teams to translate business needs into scalable, high-performing technical solutions.
  • API Development: Design and manage inter-service communications, ensuring seamless integration across our AI products.
  • Code Excellence: Maintain high standards for code quality, testing, and deployment, championing best practices in continuous integration and development.
  • Mentorship: Provide guidance and mentorship to junior engineers, fostering a culture of innovation, collaboration, and continuous improvement.
  • System Optimization: Continuously analyze and optimize system performance, scalability, and reliability.
  • Architectural Input: Engage in system architecture discussions, influencing the technical roadmap and future development strategies.


  • Requirements
  • Experience: 5+ years of professional experience in Python development (additional languages are a bonus).
  • Startup DNA: Previous experience in a startup environment, thriving in fast-paced, dynamic teams.
  • Cloud Expertise: Hands-on experience with cloud environments, modern databases, and distributed data ecosystems.
  • Communication: Strong communication skills. Fluency in English and being comfortable working in an English environment is necessary.
  • Customer-Centric: Driven by a product-focused mindset, ensuring technical solutions align with customer needs.
  • Proactive Leadership: Self-starter with excellent prioritization skills, able to work autonomously while driving results.
  • Business-Technical Translator: Ability to communicate complex technical concepts in a way that resonates with business stakeholders.
  • Education: Bachelor’s degree in Computer Science, Engineering, or related fields.


  • Nice-to-Haves
  • Experience with high-performance computing and system optimization.
  • Previous leadership or project management experience.
  • B2C experience, particularly with large user databases.
  • Hands-on experience building or contributing to AI products. Experience or side projects involving AI/ML technologies.


  • Why Join Us?
    At Luzia, you’ll have the opportunity to be part of a fast-growing startup, contributing to products that are transforming the AI space. Our culture is collaborative, innovative, and deeply mission-driven. If you’re passionate about AI, love solving complex problems, and are looking to make a significant impact, we’d love to hear from you.
    Work Environment: We are a hybrid, extremely fast-paced environment. As a young startup, we offer the excitement and agility of a startup culture with the backing of prominent investors. We prioritize action and innovation, and we're looking for a driven individual ready to step up to challenges and grow with us. We are prepared to change the world.
    Our Culture and Values: At Luzia AI, we live and breathe agility. Our culture is steeped in a "ship, experiment, iterate, ship" mentality, where action, innovation, data and rapid execution are paramount. We are a consumer centric company, driven by product and engineering, always looking to push boundaries and move forward with momentum.
    Growth and Impact: In a world where artificial intelligence technology is evolving at breakneck speed, every task completed contributes to our growth, and every problem solved brings us one step closer to our vision. As Head of App, your work will impact not only the future of Luzia, but also the lives of millions of users around the world.
    Compensation: Negotiable based on experience, qualifications, and location.
    Luzia logo

    Luzia

    3 views

    0 applied
    Share this job
    Copy Permalink
    Open roles at Luzia
    Luzia logo
    Luzia

    Brand Marketing Manager

    es flag
    Spain

    Hybrid

    Full Time

    #Marketing

    #Brand Marketing

    #Video Content

    #Social Media

    #Engagement

    #Data Analysis

    #Strategic Thinking

    #Collaboration

    #Content Creation

    Luzia logo
    Luzia

    Android Engineer

    es flag
    Spain

    Hybrid

    Full Time

    #Engineering

    #AI

    #Mobile Development

    #Kotlin

    #Android

    #UI UX Design

    #APIs

    #Databases

    #Cloud Storage

    #Agile

    Discover similar jobs
    Constructive Dialogue Institute logo
    Constructive Dialogue Institute

    Senior Data Scientist

    us flag
    United States

    135k - 145k USD

    Remote

    Full Time

    #Data Science

    #Analytics Engineering

    #Nonprofit

    #SQL

    #Python

    #Data Pipelines

    #AWS

    #Dashboards

    #Git

    #Data Quality

    #BI Tools

    Allata logo
    Allata

    Ascend Program - Data

    Remote

    Full Time

    #Data

    #Data Engineering

    #Software Development

    #Data Analysis

    #AI

    #Agile

    #Jira

    #Git

    #Cloud Platforms

    LUMA logo
    LUMA

    Full-Stack Software Engineer

    Remote

    Full Time

    #Technology

    #Software Development

    #Enterprise Software

    #React

    #NodeJS

    #Frontend Development

    #Backend Development

    #iOS Development

    #Android Development

    #Web Development

    Tebra logo
    Tebra

    Security Architect

    179k - 204k USD

    Remote

    Full Time

    #Security

    #Cloud Security

    #Healthcare

    #Cloudflare

    #GCP

    #Kubernetes

    #Terraform

    #Python

    #DevSecOps

    #Vertex AI

    #BigQuery

    #Helm

    #Workato

    S
    Snackpass

    Software Engineer, Fullstack

    Remote

    Full Time

    #Engineering

    #Payments

    #Analytics

    #Tooling

    #Mobile Apps

    #Scalable Systems

    OpenVPN logo
    OpenVPN

    AI Platform Engineer

    140k - 150k USD

    Remote

    Full Time

    #AI

    #DevOps

    #Cloud Infrastructure

    #Vertex AI

    #Terraform

    #GCP

    #Compliance

    #ISO 27001

    #Pipelines

    #Kubernetes

    U
    Union

    Sales Engineer

    Remote

    Full Time

    #AI

    #Sales

    #Machine Learning

    #MLOps

    #PyTorch

    #TensorFlow

    #Spark

    #Kubernetes

    #Docker

    #AWS

    #Terraform

    #MEDDIC

    N
    NewPage Solutions Inc

    Python Developer

    Remote

    Contractor

    #Technology

    #Digital Health

    #Continuous Delivery

    #Python

    #AWS Lambda

    #AWS ECS

    #Automated Testing

    #Agile Methodologies

    #Terraform

    #Drupal

    #PHP

    #S3

    #DynamoDB

    D
    Deepgram

    Pre-Sales Solutions Engineer

    Remote

    Full Time

    #AI

    #Solutions Engineering

    #Python

    #JavaScript

    #API Integration

    #Speech Recognition

    #NLP

    #Cloud Platforms

    #Docker

    #Kubernetes

    #Sales Methodologies

    Volksbyte logo
    Volksbyte

    DevOps Engineer

    Remote

    Full Time

    #Technology

    #DevOps

    #Software Development

    #Pipelines

    #Linux

    #Ansible

    #Terraform

    #Apache

    #Nginx

    #PHP

    #Node

    #PostgreSQL

    U
    Unit4

    Senior Cloud Infrastructure Engineer

    pl flag
    Poland

    Remote

    Full Time

    #Cloud Infrastructure

    #Engineering

    #Microsoft Azure

    #Infrastructure Engineering

    L
    Lightdash

    Head of Engineering

    Remote

    Full Time

    #Engineering Leadership

    #AI

    #Developer Experience

    #TypeScript

    #React

    #Node.Js

    #SQL

    #Docker

    #Kubernetes

    #GCP

    #Architecture

    #Security

    saas.group logo
    saas.group

    Applied Research Scientist

    Remote

    Full Time

    #AI

    #Research

    #SQL

    #Python

    #Data Analysis

    #Experiment Design

    #Data Pipelines

    #Validation

    #AI Tools

    #Research Methodology

    P
    Pinecone

    Staff/Principal Product Manager, Database

    Remote

    Full Time

    #Product Management

    #AI

    #Database

    #SaaS Products

    #Cloud Infrastructure

    #Data Analysis

    #User Research

    #Roadmap Planning

    #Collaboration

    #Technical Products

    Dataiku logo
    Dataiku

    Fullstack Software Engineer

    Remote

    Full Time

    #Engineering

    #AI

    #Solutions

    #Vue.Js

    #React

    #Angular

    #Python

    #fastAPI

    #Flask

    #RESTful API

    #Data

    A
    Ankorstore

    Lead Data Platform

    Remote

    Full Time

    #Data Engineering

    #Platform

    #Data Platform

    #SQL

    #Python

    #BigQuery

    #Airflow

    #DBT

    #Sigma

    #Amplitude

    #Terraform

    #Product Analytics

    C
    Clyro

    Technical Product Marketer Content Growth

    Remote

    Full Time

    #AI

    #Content Marketing

    #Growth

    #SEO Optimization

    #Content Editing

    #Editorial

    #Keyword Research

    #Management

    #Social Media

    #LinkedIn

    #Twitter

    #Ahrefs

    E
    Eight Sleep

    Senior Backend Engineer

    Remote

    Full Time

    #Software Engineering

    #Distributed Systems

    #Java

    #Kotlin

    #Scala

    #C#

    #Python

    #NodeJS

    #TypeScript

    #Cloud Services

    C
    Cribl

    Associate Value Engineer

    us flag
    United States

    126k - 150k USD

    Remote

    Full Time

    #Value Engineering

    #Sales

    #Data

    #Financial Modeling

    #Google Sheets

    #Google Slides

    #Business

    #Salesforce

    #ROI Analysis

    S
    Savant Systems

    Technical Sales Manager

    us flag
    United States

    Remote

    Full Time

    #Technical Sales

    #Sales Support

    #System Design

    #Support

    #Product Training

    #Technical Support

    #Testing

    #Events

    Your dream job awaits.

    Explore exciting opportunities, connect with top employers, and ignite your career.