Senior Full Stack Engineer, Barcelona

We are seeking an exceptional Full Stack Software Engineer to join our growing Digital Team.

About the job

Are you passionate about turning ideas into reality, embracing ownership, and working at the forefront of connectivity? Join viaPhoton and be part of a culture that thrives on fearless innovation, teamwork, and continuous growth, where learning, unlearning, and relearning are part of the journey.

This dynamic role offers significant ownership and responsibility. We’re looking for individuals who excel in environments where their contributions make an impact, are hungry to learn, and are energized by meaningful work that drives company growth while accelerating their career. If this sounds like you, we’d love to hear from you!

Who We Are

We are changing the norm by being customer focused, technology led.

viaPhoton is on an ambitious mission to revolutionize how critical digital infrastructure is manufactured and deployed. Best-in-class data centers and telecom providers need fiber optic solutions delivered in weeks, not months—whether that’s for AI infrastructure, 5G networks, or next-generation broadband. We’re reimagining fiber optic manufacturing for the AI era. Manufacturing is no longer just an operations challenge, but an automation and speed-to-market problem that customers urgently need solved. In less than 5 years, we’ve grown to a team of over 150, and have added top cloud service providers to our growing customer base. We have only just gotten started -- our ambition is to become the market leader of the $40+ BN connectivity industry.

We seek candidates who will be culture contributors and who align with our core values:

• Fearless Innovation: we are pioneers unafraid to change the norm in relentless pursuit of better
• Forward Together: we believe that when we work together toward a collective goal, we all succeed
• Integrity Over Everything: we believe in long term relationships and doing what is right, always
• Nimble, Always: we are solutions obsessed, move fast, and stay nimble
• Be the Bar: we set our own standard of excellence and hold ourselves to it

What You Will Do

As a Full-Stack Engineer at viaPhoton, you will be part of the Digital Team, which supports the rapid growth and digital transformation of the Fiber Optic Connectivity business. You will own major product features across the stack, from design to launch, and will have close feedback loops with users and our Customer Success team.

You will work closely with a cross-functional team of engineers and domain experts to architect scalable systems, implement robust software components, and ensure the reliability and performance of our software platforms. Your technical expertise, leadership abilities, and problem-solving skills will be essential to our success as we work to revolutionize the customer experience.

Daily duties include, but are not limited to:

• Collaborating with stakeholders, product owners, and other developers to build responsive, user-friendly web applications.
• Driving the implementation of new products and features.
• Writing clean, reusable, and efficient code while adhering to best practices and coding standards.
• Writing test scripts, working with various automation tools and debuggers across the full stack.
• Shepherding your contributions through peer reviews, testing, deployment, and monitoring in production.
• Ideating on the future of our user experience, using both qualitative user feedback and quantitative analytics to identify areas of opportunity for the business.

What You Will Bring

• A minimum of 7 years of experience in software development.
• Experience with Node.js.
• Strong understanding of information architecture modeling.
• Experience with database integrations (SQL, NoSQL).
• Proficiency in cloud deployment environments (AWS).
• Familiarity with event queue implementations.
• Experience with containerization (Docker v2).
• Expertise in REST API implementation.
• Experience with unit testing.
• Experience with integration testing.
• Proficiency in working in an English-speaking environment.
• Knowledge of E2E testing and authentication (OAuth2).
• Comfortable with ambiguity and change.
• Take pride in your work and its impact.
• Ability to learn, unlearn, and relearn.
• A proactive, self-driven mindset where your growth is dependent on you.
• Creative problem solving; if you don't know the answer, you’ll know how to find a way to it.
• Multi-tasking with the ability to handle multiple inquiries at once and prioritize them accordingly.
• Start-up experience is a plus.

Why Join Us

• Cutting-Edge Technology – Opportunities to work on the forefront of fiber optic technology.
• Market-Leading Compensation – With performance-based bonuses and equity opportunities.
• Professional Development – We’re committed to your growth, offering resources, career development, and a culture where your voice is heard.
• Fun Team Environment – Team bonding events, free lunches, and activities to keep us connected.
• Flexible Benefit Package – Manage your benefits through an easy-to-use Cobee account. Monthly company contribution to your Cobee account to be used for meals, transport, and more.
• Hybrid Work Model – At least 3 days in office, with a prime location next to the stunning Playa de Barceloneta.