Senior Fullstack Engineer (Java/Kotlin+ React)

Parser; Madrid; Híbrido; EUR 42.000 - 65.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Medical insurance

Flexible hybrid working environment

Competitive compensation package

Descripción de la vacante

Parser is seeking a Full Stack Engineer to join our Madrid team, shaping scalable solutions across frontend, backend, and infrastructure through close collaboration with cross-functional engineers. You will work on modern stacks to deliver technology-driven outcomes.

You will engage with React on the frontend, RESTful APIs on the backend, and cloud platforms like AWS/GCP/Azure. The role offers a hybrid model in Madrid, with a supportive environment and growth opportunities.

Formación

• Experience with frontend frameworks like React.
• Experience with backend technologies and RESTful APIs.
• Knowledge of cloud platforms such as AWS, GCP or Azure.
• Familiarity with SQL and NoSQL databases.
• Solid understanding of computer science fundamentals (data structures, algorithms, system design).
• Passion for clean, maintainable code and modern practices (CI/CD, TDD, DevOps).
• Strong communication and collaboration skills.
• A drive to learn and improve — both yourself and the systems you build.

Responsabilidades

• Write high-quality, maintainable and testable code in Java, Kotlin, TypeScript, Python or other modern stacks.
• Build across the full stack — frontend web applications, backend services, APIs, and data flows.
• Work in a cross-functional Agile team, participating in all development phases from planning to production.
• Provide technical mentorship, conduct code reviews, and engage in architectural discussions.
• Continuously improve systems for scalability, performance, and resilience.
• Collaborate with stakeholders to shape product direction and make architecture decisions.

Conocimientos

Strong communication & collaboration

Mentorship

Agile teamwork

Herramientas

React

RESTful APIs

AWS

GCP

Azure

SQL

NoSQL

CI/CD

TDD

DevOps

Descripción del empleo

Who is Parser?

Technology alone does not create impact- the right teams do. Founded in 2018, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and AI enablement.

We are a fast-growing team of 340+ engineers and consultants across Europe (UK, Spain, Portugal), the Americas (US, Argentina, Uruguay, Colombia), and the Middle East.

We combine global reach with a mindset focused on agility, senior expertise, and close collaboration. We work as an extension of our clients’ teams, helping them define the right problems, shape solutions, and deliver technology-driven outcomes that create measurable business value. Our expertise spans software engineering, AI & data, product development, and customer experience, delivered by teams that combine strong technical depth with a consulting mindset.

Why Join Us?

If you are looking for a place where you can think beyond execution, take true ownership of outcomes, influence decisions, and continuously learn alongside top-tier specialists in a truly global environment, we’d love to meet you.

How will you impact?

As a Full Stack Engineer, you'll work on impactful projects using cutting-edge technologies. Collaborating with talented engineers across frontend, backend, and infrastructure, you'll design and build solutions critical to Parser's mission.

Your key responsibilities:

• Write high-quality, maintainable and testable code in Java, Kotlin, TypeScript, Python or other modern stacks.
• Build across the full stack — frontend web applications, backend services, APIs, and data flows.
• Work in a cross-functional Agile team, participating in all development phases from planning to production.
• Provide technical mentorship, conduct code reviews, and engage in architectural discussions.
• Continuously improve systems for scalability, performance, and resilience.
• Collaborate with stakeholders to shape product direction and make architecture decisions.

What you'll bring to the role:

• Experience with frontend frameworks like React
• Understanding of backend technologies and RESTful APIs
• Knowledge of cloud platforms such as AWS, GCP, or Azure
• Familiarity with SQL and NoSQL databases
• Solid understanding of computer science fundamentals (data structures, algorithms, system design)
• Passion for clean, maintainable code and modern practices (CI/CD, TDD, DevOps)
• Strong communication and collaboration skills
• A drive to learn and improve — both yourself and the systems you build

Location:

• Madrid, Spain: Hybrid model, 3 days per week in the office

You will receive:

• The chance to join an organization with triple-digit growth that is changing the paradigm on how software products are built.
• The opportunity to be part of an amazing, multicultural community of tech experts.
• A highly competitive compensation package.
• A flexible and hybrid working environment.
• Medical insurance.

Parser is committed to fostering an inclusive workplace and providing equal employment opportunities to all applicants regardless of race, religion, gender, sexual orientation, age, disability, or any other protected characteristic under applicable law.

If you require reasonable accommodations during the recruitment process, please let us know and we will work with you to support your participation.

By applying to this role, you acknowledge that your personal data will be processed in accordance with Parser’s Privacy Notice for recruitment purposes.

Parser may use AI-assisted tools during certain stages of the recruitment process to support operational efficiency. Our recruiting teams use AI to streamline note-taking and scheduling. All hiring decisions are made by people, with human review and oversight.