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QA Developer

Terra

Job Location:

Bilbao - Spain

Yearly Salary: EUR 23000 - 28000

Posted: 20 September 2026 (17 hours ago)

Application Deadline: 18 December 2026

Vacancies: 1 Vacancy

Job Summary

We are seeking an enthusiastic and highly skilled Quality Assurance (QA) Developer to join our fast-paced and innovative digital marketing agency. As a key member of our dev team you will work closely with our developer team to design develop and maintain backend systems that power the sites and applications of our clients.

Applicants must be fluent in Spanish and English (as interviews are in both languages). Please submit resume in English.

What Youll Do

Work closely with our Technology Lead IA Developers and UX/UI Design Lead to test and develop features.
Review code produced with AI assistance before it reaches a client: check it does what the ticket asked follows our conventions and doesnt contain invented APIs or bugs that look plausible at a glance.
Work with our AI Developer to figure out how to fix it: whats actually wrong what the fix should be and whether it risks breaking something else.
Trace it to its cause front-end back-end or prompt rather than stopping at the symptom and see the fix through.
Try to break our AI features on purpose and document every case that works.
Monitor Web Speed Optimization efforts after each release.
Proactively report to our internal Project Manager and IA Developers and manage your schedule to ensure all deadlines are met.
Were hiring someone who wants to build not only to fix. As you get comfortable youll take on development tasks alongside the AI Developer on both internal tools and client features.

Who You Are

Located in Europe this position requires you to work in accordance with our Spain offices working hours (10am-6pm CET)
Must be fluent in Spanish and professional working English.
Around 1 year of experience in web development or QA.
Able to read and write JavaScript and comfortable around a modern framework (React or Vue).
Working knowledge of HTML5 and CSS3 enough to spot layout responsive and cross-browser issues.
Understanding of back-end logic (PHP and/or Node) so you can follow a feature end to end.
Experience testing REST or GraphQL endpoints.
Experience working inside Git and in an Agile environment.
Comfortable working with AI assistants as part of your workflow writing good prompts reviewing generated code critically and knowing when not to trust the output.
Any hands-on experience with LLMs even personal projects.
A keen eye for detail interactivity and animation.
A true team player who can work closely with others.
Any hands-on experience with LLMs even personal projects.

Perks and Benefits

15 observed holidays 23 PTO days per year
Indefinite contract following a trial period of 6 months
Permanent remote work work from home stipend
Dedicated budget for professional development
Compensated onsite retreats at our Bilbao HQ
The opportunity to join a dynamic close-knit team that loves going to work with and for each other every day

23000 - 28000 a year

About Terra

Terra is a digital marketing and creative agency built by an integrated and international team of content creators strategists designers and developers. We help organizations reimagine and deliver their most ambitious digital projects and initiatives by acting as an extension of our clients teams and delivering exceptional online experiences content and marketing strategies.

Our team is innovative tech-forward and creative by nature. We are dedicated to pushing boundaries and staying ahead of the curve in todays ever-evolving digital landscape. We believe in the power of collaboration and foster a work environment that encourages creativity and growth. And with a strong focus on work-life balance we prioritize the well-being and career development of our team members. Finally we are committed to promoting from within and offering meaningful opportunities for professional growth.

Terra is also an equal opportunity employer.

We recruit employ train compensate and promote team members regardless of their race religion color national origin sex disability age veteran status or any other protected status (as required by applicable law).

Our top goal as an employer is to bring together a diverse mix of talented people who are excited to join our company stay with Terra for a long time and do their best work while theyre here. We take pride in the quality of the services and work we provide to our clients and we know none of it is possible without the hard work and commitment of our passionate and creative employees.

Required Experience:

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