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AI-Integrated Front-End Developer in Alcobendas

Hybrid in Alcobendas·Full-time·Added yesterday (last checked 6 Nov)

Arsys

4 open roles

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Our summary

Work mode: Hybrid, Alcobendas
Contract: Full-time
English: Required
Benefits: Private health insurance, flexible pay plan, meal vouchers

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Skills

Arsys is hiring for this role in several places. This vacancy is in Alcobendas.

Requirements

What we're looking for

Expertise in Modern JS/TS: High standards for code quality, architectural integrity, and browser performance (rendering pipeline, profiling via DevTools/Lighthouse).
AI-First Orchestration: Demonstrated experience using AI as an everyday development multiplier. You let AI handle the initial pass while you bring the technical judgment, validation, and architectural rigor.
English Fluency: English domain for daily technical communication and team collaboration.
Debugging & Legacy Navigation: Comfort working with complex, legacy code and pursuing non-linear bug investigations to resolution.

Nice to have

Bonus: Familiarity with Canvas or WebGL.

Pay & benefits

What you'll get

Fixed salary and flexible benefits such as health insurance, daycare allowance, and meal vouchers.
Flexible working hours to organize your schedule according to your needs.
Ability to work hybrid in any of our offices located in Logroño, Madrid, Barcelona, Seville or Valencia.
Invitation to our Arsys events, held twice a year, where we team build and throw a great party for our employees.
Personalized training in cutting-edge technologies, certifications, or any area that interests you.
Various employee discounts for activities and products.
We have a motivated, innovative team that is continuously learning. A culture where your opinion and initiative matter. We want to hear your ideas and see you put them into practice.

The role

You will own the JavaScript layer in EuroOffice, setting the bar for code architecture, loading and rendering performance, and deep bug investigation. In this role, AI is not a separate specialty, but a core working method woven into how you build, debug, and refine software.

What you'll do

Coding Excellence: Write and review clean, well-architected JavaScript/TypeScript with sound state management, creating code that both engineers and AI models can easily reason about.
Rendering & Loading Performance: Identify and fix performance bottlenecks (TTI, load time, unnecessary re-renders, bundle bloat) across DOM and Canvas surfaces.
Feature Refinement: Continuously sharpen shipped features based on production usage patterns and real-world edge cases.
Bug Research: Trace and resolve complex, non-obvious issues across large and partially undocumented codebases.
AI Integration: Utilize AI across all workflows to accelerate implementation, analyze logs/traces, and maintain real-time documentation.

About Arsys

Arsys is a Spanish web hosting and cloud services provider headquartered in Logroño, Spain. Founded in 1998, the company offers domain registration, shared hosting, VPS, dedicated servers, and cloud infrastructure solutions to businesses and individuals, primarily in the Spanish and European markets. As part of the IONOS Group, one of Europe's leading hosting and cloud providers, Arsys benefits from significant scale and resources while maintaining its own brand and operations.

Arsys has a strong presence in Spain, with its main office in Logroño and additional operations in Madrid and Barcelona. The company is known for its engineering-driven culture, with a focus on Linux/Unix systems, DevOps practices, and network infrastructure. For international professionals, Arsys offers opportunities to work in a growing cloud and hosting environment, with roles often requiring English and offering the chance to work in a Spanish-speaking country. The company's integration with the IONOS Group provides access to a broader European tech ecosystem, making it an attractive option for those looking to relocate to Spain.

Industry: Web Hosting & Cloud
Founded: 1998
Employees: 500–1,000
Headquarters: Logroño, Spain
In Spain: Logroño, Madrid, Barcelona

Good to know if you are moving

Arsys is part of the IONOS Group, one of Europe's largest hosting and cloud providers, offering a stable and well-resourced work environment.
The company's main office is in Logroño, a mid-sized city in northern Spain, which offers a lower cost of living compared to Madrid or Barcelona.
Open roles include engineering positions such as Linux/Unix System Engineer and Staff DevOps Engineer, indicating a strong technical focus.
The company uses Greenhouse for its job board, suggesting a modern and structured recruitment process.
Working at Arsys provides the opportunity to gain experience in a Spanish tech company while being part of a larger European group.

In their own words

About the company & team

We offer you the opportunity to join the leading Spanish company in the IT sector, with more than 25 years of experience and one of the most solid track records as a provider of technological solutions for companies.

We are a growing company with more than 400 employees and offices in Logroño, Madrid, Barcelona, Seville and Valencia.

Since August 2013, we have been part of the IONOS Group, Europe's leading digitalisation partner for small and medium-sized companies.

In short, we are a multicultural team that's passionate about technology, bringing our professional experience from over a dozen countries: Germany, Argentina, Spain, the United States, France, the Philippines, Italy, Poland, Portugal, the United Kingdom, Romania...

Additional information

At Arsys we value diversity and welcome all applications regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age, as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.

All open roles at Arsys