Senior Full-Stack Engineer (Contract)

Xcelirate; Amsterdam; On-site; EUR 90,000 - 135,000; Full time

Benefits offered by this job

Relocation package

Delicious daily lunches

Health Insurance without copayment

Gym membership with global access

Weekly business-English and Spanish

In-office chair massages weekly

Annual learning budget and coaching

Spotify and Netflix subscriptions

MacBook and branded merchandise

Office in Barcelona WeWork with games,

Access to global coworking spaces

23 days of annual leave

Job summary

Xcelirate is seeking a seasoned Full-Stack Dev with strong PHP and JavaScript experience to own end-to-end development across backend and frontend layers. You’ll tackle legacy fixes, build new features, and keep applications fast, secure, and scalable.

You’ll work with modern stacks, contribute to automated testing, and participate in architectural discussions. The role emphasizes independence, ownership, and practical problem-solving in a fast-paced environment.

Qualifications

• 6+ years working with frontend frameworks/libraries like Vue.js, React, Nuxt, or Next.js
• 12+ years of web application development experience
• Deep understanding of scalable web architectures
• Familiarity with infrastructure automation with Ansible/Terraform
• Hands-on experience building and maintaining CI/CD pipelines
• Passion for automated testing (unit/integration/e2e) and TDD
• Knowledge of agile development tools and practices
• Strong PHP development expertise with at least one framework (Symfony, Zend)
• Strong web security knowledge (encryption, authentication, authorization)
• Experience deploying and scaling apps in cloud environments (AWS/Azure/Google Cloud)

Responsibilities

• Build new features and improve existing ones across our platforms
• Refactor and enhance applications to keep them performant, scalable, and maintainable
• Write tests (unit, integration, and end-to-end) to ensure software reliability
• Be involved in every phase of the software lifecycle, from ideation to deployment
• Participate in deep technical discussions and shape our applications and infrastructure
• Get hands-on with all elements of the stack, from backend logic to frontend interactions
• Identify inefficiencies and help streamline workflows, reducing unnecessary work
• Take ownership of your work, delivering high-quality, maintainable solutions

Skills

PHP development

JavaScript development

Web security

Automated testing (TDD)

Agile methodologies

Strong communication

Tools

Ansible

Terraform

Jenkins

AWS

Azure

Google Cloud

Job description

• You work best with fierce independence. You don’t need hand-holding - you’re the one who does the hand-holding when it’s needed. You don’t wait for direction; you are the direction. To twist a phrase: you’re not the one who knocks, you’re the one who delivers
• You live for making things work. Whether that’s a clean new feature, a quirky legacy bug fix, or tracking down why that button refuses to do what it’s told. You like code that’s neat and maintainable, but you’re also practical - you know sometimes duct tape is exactly what the situation calls for
• Building apps is your thing - you tinker, refactor, and optimize because you can’t help yourself. You get a kick out of speeding things up, cleaning things up, and occasionally wondering what exactly your predecessor was drinking when they wrote that function
• And yes, you’re not afraid to dive into the relics. That PHP app last touched in 2010? It still needs love. The JavaScript file with 1,200 lines and no semicolons? You’ll wrestle it into submission
• Manage your own time while adhering to priorities set by the company
• Build new features and improve existing ones across our platforms
• Refactor and enhance applications to keep them performant, scalable, and maintainable
• Write tests (unit, integration, and end-to-end) to ensure software reliability
• Be involved in every phase of the software lifecycle, from ideation to deployment
• Participate in deep technical discussions and help shape our applications and infrastructure
• Get hands-on with all elements of the stack, from backend logic to frontend interactions
• Identify inefficiencies and help streamline workflows, reducing unnecessary work
• Take ownership of your work, ensuring high-quality results and maintainable solutions

Benefits

• Relocation package
• Delicious daily lunches
• Health Insurance without copayment, and including dental coverage
• Gym membership with access to over 3,000 gyms, studios and classes throughout Spain, including spa access for you and a friend
• Weekly business-English classes and Spanish lessons, with the option for 1-on-1 classes where needed
• In-office chair massages every Thursday by our resident massage therapist
• Annual learning budget, and regular coaching sessions hosted by your peers and industry experts
• Spotify and Netflix subscriptions
• Awesome new MacBook & our branded merchandise, along with all the fixtures which complete the perfect workstation
• Incredible office based in Barcelona’s WeWork - it’s full of games, chill out areas, snacks and beer on tap
• Access to a global network of co-working spaces for when you’re utilizing our remote days
• 23 days of annual leave and all the Barcelona public holidays to use when you please
• An international team
• Awesome referral bonus
• Bring your dogs to work
• Flexible hours

You’re a Full-Stack Dev - you’ve been around the block, and you know your way through both backend trenches and frontend battlefields. PHP? Still your reliable sidekick. JavaScript? Sometimes a mischievous friend, sometimes a chaos gremlin, but you’ve learned how to keep it in line.

You live for making things work. Whether that’s a clean new feature, a quirky legacy bug fix, or tracking down why that button refuses to do what it’s told. You like code that’s neat and maintainable, but you’re also practical - you know sometimes duct tape is exactly what the situation calls for. And yes, you’re not afraid to dive into the relics. That PHP app last touched in 2010? It still needs love. The JavaScript file with 1,200 lines and no semicolons? You’ll wrestle it into submission.

You work best with fierce independence. You don’t need hand-holding - you’re the one who does the hand-holding when it’s needed. You don’t wait for direction; you are the direction. To twist a phrase: you’re not the one who knocks, you’re the one who delivers.

Building apps is your thing - you tinker, refactor, and optimize because you can’t help yourself. You get a kick out of speeding things up, cleaning things up, and occasionally wondering what exactly your predecessor was drinking when they wrote that function.

• 6+ years working with frontend frameworks/libraries like Vue.js, React, Nuxt, or Next.js
• 12+ years of web application development experience: you’ve seen the evolution of web tech and know how to build for the future
• Deep understanding of scalable web architectures: monolithic, microservices, or hybrid, you know when to use what
• Familiarity with Ansible and Terraform for infrastructure automation
• Hands-on experience building and maintaining CI/CD pipelines
• Passion for automated testing (unit, integration, and end-to-end) and test-driven development (TDD)
• Knowledge of agile development tools, techniques, and principles
• Strong expertise in PHP development, debugging, and algorithm/software design
• Strong communication skills, with the ability to explain technical concepts to both engineers and non-engineers
• 10+ years of PHP development, with expertise in at least one framework (Symfony, Zend preferred)
• Strong grasp of web security: encryption, authentication, authorization, and everything in between
• Experience deploying, managing, and scaling applications in cloud environments (AWS, Azure, Google Cloud)

We’re always looking for the best candidates, so if you think you would be a good fit even if you don’t meet 100% of the requirements, we would love to hear from you!