Full-stack Technical Lead (Java+React)

N-iX

Barcelona, ESremote countryPosted Aug 20, 2026
Posting intelligenceActively listed

Skills

kubernetesseleniumjenkinsspringkotlinreactjunitcicdjavajavascriptml

About the role

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.

Nowadays, finding a long-term job with an interesting project can feel like a real challenge.

But hey - if you're an experienced Technical Lead / Full Stack Engineer (Java + React), look no further!

Yes, it's real. You're not dreaming. Miracles do exist!

When it comes to our customer – a strategic partner of ours in the integrated Shipping Services. They have set themselves apart as an independent carrier with a fresh, unique approach. Their strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices.

Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals.

Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices.

Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies.

Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing.

Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment.

Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops.

Requirements:

BS degree in Computer Science or an equivalent combination of education and experience.

Experience in technical leadership is a must.

6+ years of full-stack development experience.

6+ years of experience in the following technologies: Java, Spring.

Proven experience with Functional Programming and Java Streams.

2+ years of experience in front-end development with React.

Experience with developing a reactive UI (Reactive JS).

2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium.

2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud).

AI experience

Experience in DevOps development and Jenkins (must).

Experience in development in Kotlin – an advantage.

Experience in designing, developing, and deploying cloud/hybrid-based solutions.

Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry).

Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers.

Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment.

Versatility and capability to switch easily between different tasks and technologies.

Experience in assessing a broad range of information solutions and products.

Strong critical thinker with an exceptional problem-solving aptitude.

Excellent English skills - both verbal and written.

We offer*:

Flexible working format - remote, office-based or flexible

A competitive salary and good compensation package

Personalized career growth

Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

Active tech communities with regular knowledge sharing

Education reimbursement

Memorable anniversary presents

Corporate events and team buildings

Other location-specific benefits

not applicable for freelancers

Questions about this role

Click "Apply with AI Applyd" above and you are done. Your resume is rewritten for this advert, the screening questions are answered, and it is submitted on N-iX's own hiring system. No retyping your history, no fourteen tabs, no evening lost.

Compensation for Frontend Engineer roles in Spain varies widely by seniority, employer size, and remote vs onsite arrangement. Check the salary range on this listing when published, or browse our Frontend Engineer hub for Spain medians across recent openings.

You never touch the form - the application is filled and submitted for you on N-iX's own hiring system. It is not marked sent when we press submit. It is marked sent when a confirmation from their system arrives at the address we apply with, and your dashboard shows which stage each application is at until then.

Twelve applicant tracking systems have a real apply path: Workday, Greenhouse, Lever, Ashby, Workable, iCIMS, Personio, Recruitee, Teamtailor, Rippling, Breezy and SmartRecruiters. Your application goes in on the employer's own hiring system, never into an aggregator queue.

Want AI Applyd to auto-apply to roles like this?

We tailor your resume per posting, fill the forms, and track replies for you.