Principal Full-Stack Engineer, Xcelirate
Contract
Salary not provided
€85/hour + retention bonus scheme
PHP
React
AWS
Docker
JavaScript
Python
Linux
Terraform
Vue.js
Ansible
Symfony
Next
Expert level
London
More information about location
Xcelirate is a global technology innovator.
Be an early applicant
Xcelirate is a global technology innovator.
21-100 employees
B2B
Be an early applicant
Salary not provided
€85/hour + retention bonus scheme
PHP
React
AWS
Docker
JavaScript
Python
Linux
Terraform
Vue.js
Ansible
Symfony
Next
Expert level
London
More information about location
21-100 employees
B2B
Company mission
To create the perfect environment for the sharpest developers to come together to strategically plan and swiftly execute practices, which see them maintain existing market dominance and strive for global expansion.
Role
Who you are
- You're a principal-level full-stack engineer
- You haven't just been around the block - you helped decide which blocks were worth building, and which ones should've been bulldozed early
- At this point, programming languages don’t really impress you anymore
- You treat them as tools that translate intent into something a compiler or interpreter can run, choosing them pragmatically, discarding them without nostalgia, and never confusing syntax or novelty with actual progress
- You’ve been around long enough to remember when PHP constructors shared their class names, when exceptions were returned instead of thrown, and when Yeoman, Underscore, and CoffeeScript felt like the obvious future
- More importantly, you also learned when to stop using those awful, awful, creations
- Despite all that experience, you’ve stayed deeply hands-on, and you’ve never been particularly interested in drifting into management just because that seemed like the default next step. You’re still happiest close to the code
- You bring a distinctly stoic approach to your work
- You don’t panic when systems misbehave, you don’t chase drama, and you don’t confuse urgency with importance
- When you join a project, things tend to settle down. Code becomes easier to reason about, systems start to feel calmer, and decisions get clearer
- That sense of clarity tends to spread to the people around you, and without any formal mentoring process, they start picking things up simply by working alongside you
- You have a solid, intuitive understanding of hot-path optimization, speculative execution, and lazy initialization, and you’re occasionally surprised that these simple concepts aren’t more widely understood
- And the homelab experiments you keep running at home, purely because you’re curious and can’t help yourself? We definitely want to hear about those
- If reading this feels a little too familiar, this role is likely to be a very good fit
- 15+ years hands-on experience building and maintaining complex web applications
- Clear technical communication; able to explain and defend design decisions to senior engineers and non-engineers alike
- Expert PHP developer (12+ years); Symfony or equivalent frameworks
- 10+ years modern JavaScript; React or Vue (Next/Nuxt a plus)
- Expert level knowledge in at least one more programming language (Python a plus)
- Full-stack architecture expertise: monoliths, services, and hybrids
- Power user cloud deployment and scaling (AWS preferred) experience and abilities
- Expert Linux user; including daily containerized workflows with Docker
- Expert in infrastructure automation: Terraform, Ansible
- Power user level CI/CD pipeline and release workflow ownership
- Experience in automated testing: unit, integration, E2E; TDD where appropriate
- Expert level knowledge in and around web security fundamentals: auth, authorization, data protection, secure coding
- Legacy + modern codebase fluency; ability to work on incremental modernization
- Strong independent technical ownership and accountability
- We are 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!
What the job involves
- Manage your own time while adhering to priorities set by the company
- Own complex engineering problems end-to-end, from problem framing and design through to delivery and iteration
- Take responsibility for critical areas of the platform, ensuring they remain reliable, performant, and maintainable
- Build new features and improve existing ones across our platforms
- Refactor legacy and modern codebases pragmatically, balancing long-term health with delivery needs
- 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 (and at times lead) deep technical discussions, helping drive sound decisions and trade-offs
- Work hands-on across backend and frontend systems, stepping in wherever the problem lives
- Identify inefficiencies and help streamline workflows, reducing unnecessary work
- Collaborate closely with other senior engineers, raising the bar through example rather than authority
- Take ownership of your work, ensuring high-quality results and maintainable solutions
Salary benchmarks
Our take
Xcelirate designs and delivers innovative technology products. The company boasts a diverse and experienced team drawn from a range of backgrounds, which has contributed to its rapid growth so far.
The company has scaled its customer base significantly, thanks in part to its focus on forward-facing, innovative and practical products and an energetic strategy. Xcelirate's main challenge will be competing with rival firms within the industry, and it will need to constantly invest in its technology in order to do so.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Company 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
- Flexible hours
- An international team
- Awesome referral bonus
- Bring your dogs to work
Company HQ
Dreta de l'Eixample, Barcelona, Spain
Leadership
Mina Ghabrial
(Founder & General Manager)Previously Head of People at WPT Global, Global People Operations Manager at Protocol Labs and was a People Operations Manager at Zenmara.
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