Base

Senior Frontend Developer

españa, Spain Azienda: JR Spain Cliente / Datore di lavoro: Uptime Institute
Pubblicato: 24.05.2026
Data di chiusura: 08.07.2026
Referenze lavorative: 04d69bf3b580ed3d084ae06788c93f75

Informazioni sul lavoro

Posizione
españa, Spain
Azienda
JR Spain
Cliente / Datore di lavoro
Uptime Institute
Referenze lavorative
04d69bf3b580ed3d084ae06788c93f75
Tipo di elenco
Base
Permesso di lavoro UE richiesto
No
Pubblicato
24.05.2026
Data di chiusura
08.07.2026

Descrizione del lavoro

LEET Security (an Uptime Institute Company) is a leading Cybersecurity Rating Agency. Established in December 2010 with the sole purpose of building a cybersecurity rating service that customers and service providers use as a means to assess, manage and improve their cyber posture. LEET’s cybersecurity rating consolidates and maps a broad series of security standards and regulations so it can be effectively applied for multiple services & environments.


Hundreds of organizations have used LEET Security’s comprehensive Cybersecurity Rating methodology to assess their cybersecurity capabilities and improve their cyber resilience and efficiently manage the cyber risks associated with their supply chains.


Uptime Institute is the Global Digital Infrastructure Authority. With over 4,000 awards issued in over 122 countries around the globe, and over 1,100 currently active projects in 80+ countries, Uptime has helped tens of thousands of companies optimize critical IT assets while managing costs, resources, and efficiency.


For over 30 years, the company has established industry-leading benchmarks for data center performance, resilience, sustainability, and efficiency, which provide customers assurance that their digital infrastructure can perform across a wide array of operating conditions at a level consistent with their individual business needs. Uptime’s Tier Standard is the IT industry’s most trusted and adopted global standard for the design, construction, and operation of data centers. Offerings include the organization’s Tier Standard and Certifications, Management & Operations reviews and assessments including SCIRA-FSI financial sector risk assessment, the Sustainability Assessment, and a broad range of additional risk management, performance, availability, and related offerings.


Uptime Education training programs have been successfully completed by over 100,000 data center professionals, such as the much-valued ATD (Accredited Tier Designer) and AOS (Accredited Operations Specialist). The Uptime Education curriculum has been expanded by the acquisition of CNet Training Ltd. in 2023.


Uptime Institute is headquartered in New York, NY, with offices in London, Sao Paulo, Dubai, Riyadh, Singapore, and full-time Uptime professionals based in over thirty-four countries around the world.


We are looking for a React Specialist who isn't afraid to dive into the rest of the stack. While your primary focus (70-80%) will be building high-performance user interfaces for our security products, you will also assist with backend integration (Python) and infrastructure confi guration (GCP/Docker) to ensure end-to-end feature delivery.


Key Responsibilities

● Frontend Architecture: Lead the development of complex SPAs (Single Page Applications) using React and TypeScript. Build intuitive dashboards to visualize complex security data and ratings.

● UX: Experience in UX design (e.g., user flows, wireframes, prototypes) and familiarity with tools such as Figma or similar is highly valued.

● Backend Collaboration: Collaborate on and occasionally contribute to Python microservices (FastAPI/Flask) to ensure seamless data fl ow to the frontend.

● Infrastructure Support: Manage the containerization (Docker) of frontend applications and assist in configuring CI/CD pipelines for automated frontend deployments on GCP (Google Cloud Platform).

● Data Visualization: Implement interactive charts and graphs (using libraries like Recharts, eCharts, D3.js, or Nivo) to represent security metrics clearly to clients.

● Quality & Security: Ensure application performance, accessibility, and strict adherence to OWASP security standards in the UI.

● End-to-End Ownership: Take ownership of features from the visual component down to the deployment configuration in Kubernetes.


Technical Requirements (Must-Haves)

● Core Frontend: Expert proficiency in React (Hooks, Context API) and TypeScript.

● Experience with Data Visualization libraries (eCharts, D3.js, Chart.js, Recharts).

● State Management: Experience with modern state management (Redux Toolkit, Zustand, or React Query).

● Backend Fluency: Working knowledge of Python (Flask). You should be comfortable reading backend code, writing simple endpoints, or debugging API issues.

● Infrastructure Basics: Familiarity with Docker (creating Dockerfiles for UI apps) and CI/CD concepts (GitLab CI, GitHub Actions).

● Cloud Awareness: Basic understanding of cloud environments (preferably GCP or AWS) and how frontend apps are hosted (Cloud Run, S3/Cloud Storage, CDNs).

● English: Upper-intermediate to high level for technical collaboration.

Desirable Skills (Nice-to-Haves)

● Knowledge of Kubernetes (deploying frontend pods, managing ingress).

● Experience with Next.js for specific rendering needs.

● Background in cybersecurity or developing dashboards for data-heavy SaaS products.

Soft Skills

● Versatility: A \"can-do\" attitude toward infrastructure or backend tasks when the team needs support.

● Visual Eye: Attention to UI/UX detail—you care about how the product looks and feels.

● Problem Solver: Ability to debug a problem across the full stack (e.g., tracing a frontend error back to a missing environment variable in the container).


Why this role is unique

This is not just a \"pixel-pushing\" role. You will have the autonomy to define how our Front-end infrastructure is built and deployed, bridging the gap between design and our Python/GCP backend teams.

Abilità

ABAP adapt to changes in technological development plans AJAX Ajax Framework analyse software specifications Ansible Apache Maven Apache Tomcat APL ASP.NET Assembly (computer programming) blockchain openness blockchain platforms C COBOL CoffeeScript collect customer feedback on applications Common Lisp computer programming create flowchart diagram cyber attack counter-measures data visualisation software debug software defence standard procedures define technical requirements design user interface develop automated migration methods develop creative ideas develop software prototype do cloud refactoring Drupal Eclipse (integrated development environment software) engineering principles engineering processes Erlang Git Groovy Haskell IBM WebSphere ICT debugging tools ICT security legislation identify customer requirements integrate system components integrated development environment software Internet of Things interpret technical requirements Java (computer programming) JavaScript JavaScript Framework Jenkins (tools for software configuration management) KDevelop Laravel Lisp manage engineering project Matlab Microsoft Visual C++ migrate existing data ML (computer programming) MySQL NoSQL object-oriented modelling Objective-C OpenEdge Advanced Business Language Oracle Application Development Framework Pascal (computer programming) perform scientific research Perl PHP Project Management Prolog (computer programming) Puppet (tools for software configuration management) Python (computer programming) R Ruby (computer programming) Salt (tools for software configuration management) SAP R3 SAS language Scala Scratch (computer programming) screen reader Smalltalk (computer programming) smart contract software anomalies software frameworks Spark SQL STAF Swift (computer programming) technical drawings tools for software configuration management Trading Software TypeScript use an application-specific interface use automatic programming use concurrent programming use functional programming use logic programming use object-oriented programming use query languages use software design patterns use software libraries use technical drawing software utilise computer-aided software engineering tools utilise machine learning VBScript Visual Basic Web Services WordPress World Wide Web Consortium standards Xcode

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