.Net Developer

ALTEN Delivery Centre Spain; Braga; Hybrid; EUR 30,000 - 40,000; Full time

Benefits offered by this job

Salary classification

Career development

Young and dynamic teams

Personalized follow-up

Sysmatch staff integration

Training & team building

Partner discounts

Job summary

Sysmatch is seeking a Lead Full stack Developer (M/F) to drive architecture and multi-team integration in a hybrid role based in Lisbon. You will lead design, API integration, SSR strategies, and caching decisions to deliver robust production systems.

You will mentor team members, align with governance, and ensure scalable solutions across frontend and backend domains.

Qualifications

• 8+ years of experience in fullstack or frontend-platform roles.
• Expertise in modern frontend frameworks (Vue, Angular, Ember, Svelte).
• Experience leading teams in complex enterprise delivery environments.
• English proficiency at B2 or higher.

Responsibilities

• Lead design and integration of Feature Team packages, Optimizely, APIs, SSR, and CDN caching.
• Define architecture standards for platform-wide integration with reusable packages.
• Implement best practices for API integration, caching, SSR, and deployment workflows.
• Collaborate with multiple teams to ensure smooth multi-layer integration.
• Act as technical lead for SSR, caching risks, and module integration conflicts.
• Mentor developers and promote growth within the team.

Skills

Frontend architecture

Component-based architecture

Routing

State management

Data fetching

Forms and validation

CSR vs SSR

SSG

Hydration

Performance optimization

Package management

Semantic versioning

Next.js

Nuxt

SvelteKit

Angular Universal

Remix

Express

Tools

npm

Yarn

pnpm

Bun

Next.js

Nuxt

SvelteKit

Angular Universal

Remix

Express

Job description

Lead Full stack Developer (M/F) - LisbonSysmatch is an IT Consultancy and Outsourcing Company with a wide range of technological skills, resulting from the accumulation of know-how and the experience of our consultants, allowing the implementation of solutions adapted to the needs of our clients, privileging their robustness and scalability. More than two decades in the IT market, we present ourselves as a flexible, adaptable, innovative and forward-looking Company.

At the moment we are looking for the following candidate: Lead Full stack Developer M/F - Hybrid (Lisbon)

Key Responsibilities:

• Lead the design and integration of Feature Team packages, Optimizely platform, backend APIs, SSR capabilities, and CDN caching into a unified production system.
• Define and enforce architecture standards for platform-wide integration with reusable packages, module publishing lifecycles, and versioning procedures.
• Implement best practices for managing API integration strategies, caching decisions, SSR compatibility, and production rollout workflows.
• Collaborate with Feature Teams, API development teams, CMS stakeholders, and governance bodies to ensure smooth and reliable multi-layer integration.
• Act as the technical lead for complex scenarios, such as SSR compatibility challenges, caching risks for sensitive user data, and module integration conflicts.
• Mentor developers, ensuring alignment with architectural principles and promoting growth within the team.

Technical Skills:

• Proficiency in modern frontend architecture, including component-based architecture, routing, state management, data fetching, forms and validation, client-side rendering vs. server-side rendering, static site generation, hydration, and performance optimization.
• Expertise in integration and governance of reusable modules using package management tools like npm, Yarn, pnpm, or Bun, with excellent knowledge of semantic versioning, dependency conflicts, rollback strategies, and package publishing workflows.
• Deep understanding of SSR architectures, rendering models, and frameworks such as Next.Js, Nuxt, SvelteKit, Angular Universal, Remix, or Express-based backend-for-frontend solutions.
• Advanced knowledge of caching strategies, including cache-control headers, edge caching (Cloudflare/Akamai), TTLs, stale content management, and personalized content cache separation.
• Broad familiarity with CMS and DXP platforms such as Optimizely, Adobe Experience Manager, Contentful, Drupal, or similar systems, with concepts like content modeling, translations, hybrid/headless architecture, and editorial workflows.
• Proficiency in API integration, including REST API design, authentication protocols, OpenAPI contracts, retry logic, error handling, logging, and rate limits.
• Experience overseeing CI/CD practices and production workflows in multi-team delivery environments.

Leadership and Interpersonal Skills:

• Strong leadership abilities to define and implement standards across multiple teams.
• Effective communication skills to clearly convey technical decisions and collaborate with diverse stakeholders.
• Ability to mentor team members and foster collaboration across teams.
• Strategic mindset to resolve architectural challenges and ensure production stability.
• Adaptable and capable of learning new frameworks and solving complex challenges.

Requirements:

• At least 8+ years of experience working with relevant technologies in fullstack or frontend-platform development roles.
• Expertise in modern frontend frameworks (e.G., Vue, Angular, Ember, Svelte), SSR architectures, BFF integration patterns, and platform governance.
• Proven experience leading teams within complex, multi-team enterprise delivery environments.
• Minimum English proficiency level of B2 to ensure clear communication and global team collaboration.

Salary Range: €30k - €40k Gross/Annual + Other Components/Benefits.

What we offer:

• Salary classification according to the experience shown;
• Career development with intervention in ambitious and innovative technological projects;
• Good working environment with young and dynamic teams;
• Personalized follow-upto each consultant;
• Integration intoSysmatch staff with access to all company activities;
• You will be partof our trainings and Team Building events;
• A network of hundreds of partnerships with companies in countless sectors that offer you exclusive discounts (health, wellness, travel, gastronomy, culture, leisure, training, etc).