Senior Backend Software Engineer
Hiire is helping Catawiki, the biggest marketplace for special items, hire a Senior Backend Software engineer for itsoffice in Lisbon.
The company:
We're a
-
-
- kind marketplace for buying and selling special objects! We offer over 75, 000 unique items each week in auction, carefully curated by our passionate
- house experts. 
Having sold over 20 million unique objects to date, we’re on a mission to become the world’s most popular destination for special objects. As a growing, diverse, and sustainable
- up, we proudly live by our core values:
- Taking ownership and driving impact
- Being open to change and feedback
- Being passionate about our mission and our customers.
If these values resonate with you, we’d love to explore how you can join us on this exciting journey!
Role Overview:
You will build scalable microservices while measuring and monitoring system performance. In addition, you will use experimentation, backed by data analysis, to add product features and deliver the best user experience on the platform.
What You'll Do:
- Design, develop, and maintain backend services, primarily in Ruby, that handle millions of daily requests.
- Write clean, scalable, and
 - tested code using modern software principles.
- Apply Infrastructure-as-Code and Continuous Delivery best practices.
- Collaborate with engineers, product managers, and designers in
 - functional teams.
- Conduct peer reviews, share knowledge, and mentor junior engineers. 
- Use experimentation and data to validate ideas and improve system performance.
What You'll Bring:
- At least 7+ years of experience in software development, specifically with OOP (object-oriented programming) - Ruby experience would be nice, but not mandatory;
- You have experience in designing, implementing, and deploying backend services with a focus on high availability, low latency, and consistency;
- You have proven experience in collaborating closely with other engineers to become a valued member of an autonomous, 
 - functional team;
- You have mentored junior engineers, and you enjoy cooperating with engineers throughout the company;
- You understand the value that you can add to the business, the product, and the impact of your work on customers;
- You feel comfortable documenting RFCS and describing problems, opportunities, pros, and cons of solution alternatives.
What You value:
- You are a passionate, experienced engineer with a strong eye for detail.
- You strive to be a great team player and don’t shy away from new challenges.
- You are comfortable in a startup environment and are ready to jump in and help if needed.
- You keep the company's values close to your heart and enjoy being in a diverse environment.
Perks:
- A competitive salary;
- A 100€ Catavoucher when you join our team;
- A 50€ Catavoucher for your birthday;
- Learning & Development programs, including clear development and career plans;
- A global, diverse, inclusive, and collaborative environment;
- An extra day off each year;
- Additional time off for significant work anniversaries (3, 5, 8, 10 years);
- Extra leave for life’s big moments like marriage, engagements, or moving house.
- Informações detalhadas sobre a oferta de empregoEmpresa: Hiire Localização: Lisboa 
 Lisboa, Lisboa, PortugalPublicado: 31. 10. 2025 
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