Full Stack Software Development Engineer React / Node.js

Launchmetrics; Barcelona; Híbrido; EUR 55.000 - 85.000; Jornada completa

Descripción de la vacante

Launchmetrics is seeking a Software Development Engineer to shape Discover, the part of our software suite for monitoring brands, analyzing performance and benchmarking across media, influencers and more. You will contribute to AI-led features and analytics, driving high-performance front-end and data-driven experiences.

Based in Spain or nearby, the role offers a hybrid work arrangement and opportunities to influence product strategy, architecture, and the code health of a modern SaaS platform

Formación

• Master's degree in Computer Science or related field.
• Minimum 2 years of relevant full-stack SaaS experience with Agile methodologies.
• Fluent English speaking and writing.

Responsabilidades

• Contribute to building new features from architecture to marketable product.
• Refactor and improve existing features to modernize tech stack and reduce complexity.
• Act as a frontend expert with React and Redux guidance.
• Architect efficient database schemas for new implementations or improve existing ones.
• Collaborate with product, design, and QA to translate requirements into reliable features.
• Advocate for code quality with unit tests and industry best practices.
• Drive AI-led improvements across the tech stack, documentation, and tooling.
• Ensure code health and maintainability through continuous improvement.

Conocimientos

React

GraphQL

REST API

TypeScript

Python

Java

CI/CD

Frontend architecture

AI-assisted development

English communication

Educación

Master's degree in Computer Science

Herramientas

Databricks

MySQL

Redis

AWS (Lambda, ECS/Fargate, S3)

Docker

Kinesis/SQS/SNS

GitHub/Jenkins

Jira

VSCode

Jest/RTL

Descripción del empleo

This role welcomes an hybrid work arrangement,applicants must be based in Spain or France or Italy and have a work permit to be considered.

The Team & the Pods organization

We are a team of passionate engineers distributed across the world, always eager to learn new things. We are building state-of-the-art modern applications and scale it on the cloud. We innovate to solve customers problems, focusing on high-performance implementations without neglecting the user experience.

We recently moved our Product and Tech teams to a pod model:

• A pod is a small group, 1 to 4 people, that owns a single mission end to end: from scoping and building through cleaning, enablement and watching adoption. Pods form around a mission and dissolve when it's done. Everyone is a pod owner, from the most junior person to the most senior, because ownership is the point.
• Your domain is your product-area home, the part of our software suite you know best. Pods change with every mission; your craft and your domain don't.

The role

We are looking for a Software Development Engineer to shape Discover, the part of our software suite where brands monitor their presence and their competitors' presence, analyse and benchmark their performance and uncover what's driving it.

Among monitoring and reporting features, we're currently bringing to life many AI-led features and advanced analytics capabilities that allow our customers to see how their brand is performing across media, influencers, celebrities and more, with Media Impact Value (MIV) at its heart.

This role plays a key part in our Tech & Product strategy, directly supporting company-wide objectives around customer retention, data trust, and the development of new AI-based insights.

What you'll do

• Contribute to building new features from initial architecture choices to the marketable product impulsing innovative solutions and the most recent technologies
• Collaborate with team members to maintain and improve existing features by fixing defects and doing continuous refactors to modernize the technical stack and reduce the overall architecture complexity
• Act as a Frontend expert, leveraging deep expertise in React and Redux, to guide the team with valuable insights, improvements, and suggestions on best practices regarding frontend code
• Architect efficient database schemas for new implementations or contribute to improve existing ones
• Work closely with product management, designers and QA to define user requirements and translating them into reliable, intuitive features
• Evangelize code quality through writing well-architected, structured code, unit tests, while following best industry practices
• Be a driver of AI-led improvements across our tech stack, documentation, tooling, and organization
• Refactor, optimize and constantly drive for improved efficiency and code health and reduced complexity

Technical Stack

• Languages: TypeScript, Python, Java
• Database & Data Platform: Databricks, MySQL, Redis
• Cloud providers: Amazon
• Main AWS technologies: Lambda, Docker on ECS/Fargate, Step functions, Kinesis, SQS, SNS, S3
• Tools: Jira, Sentry, VSCode, ...
• Versioning tool: Git, Github
• CI/CD: Github actions, Jenkins
• Testing: Jest, React Testing Library

What we're looking for

• Engineer Degree - Master Degree in Computer Science and a minimum of 2 years of relevant work experience in full-stack developments in a SaaS environment with Agile methodologies
• Experience with, or strong interest in, AI-assisted development workflows (e.g. Claude, GitHub Copilot) to accelerate coding, testing, and code review
• Strong expertise with React
• Experience building a RESTful API, or even better, a GraphQL API
• Experience working with modern data platforms (e.g. Databricks, Spark, Delta Lake) for building and optimizing data pipelines, or similar experience with search engines like ElasticSearch
• Good understanding of data modeling, performance tuning, and lifecycle management (partitioning, indexing/clustering, schema evolution) in large-scale distributed data systems
• Bright, energetic, highly motivated self-starter with experience in a fast-paced, results-oriented organization
• Ability to adapt, estimate workload, break down a task into logical steps, solve problems, self-improve and suggest new ways of improvement
• You care about the long-term maintainability of the codebase and advocate for refactoring and clean-ups when appropriate
• Last, but definitely not least: you speak, read, and write English fluently

How we hire

• Intro call with Talent Acquisition, to get to know each other (30 min).
• Meet & Greet with VP Software Development.
• Technical Interview, a live interview with a couple of Software Engineers.
• Team fit with the engineers and peers you'd build alongside.

About Launchmetrics

Launchmetrics is the leading Brand Performance Cloud used by Fashion, Lifestyle and Beauty (FLB) executives to make smarter decisions around their branding efforts.

With over a decade of industry expertise, we have helped more than 1,200 customers create inspiring, impactful and measurable experiences.

Founded in NYC and with operating headquarters in Paris, we have employees in ten markets worldwide and offer support in five languages. We have been the trusted brand performance technology to brands worldwide such as Dior, Fendi, Shiseido, NET-A-PORTER and Adidas as well as industry partners like IMG, the Council of Fashion Designers of America, the British Fashion Council, and Camera Nazionale Della Moda Italiana.

Why you'll love it here

We're a company that puts people first, with a relaxed but genuinely dynamic atmosphere and a team of motivated, curious people who like their work. Autonomy is real here: pods make local decisions and own their outcomes, which means you'll see your fingerprints on the product quickly.

You’ll get a learning and development allowance, a benefits package tailored to your location, flexible working arrangements with support to set up your home office, and the room to grow along whichever path fits you. We’re remote-friendly, with hubs across our twelve markets.

OUR COMMITMENT

Launchmetrics is proud to be an Equal Opportunity Employer building a diverse and inclusive workforce. If there is anything extra we can do to help you feel at ease during your interview process, please let the PeopleOps team member you’ll be meeting with know.