Senior Full Stack Engineer (Backend focused)

Posted 6 Hours Ago
Be an Early Applicant
Hiring Remotely in European Union
Remote or Hybrid
Senior level
Information Technology • Software • Consulting
The Role
Own and maintain backend services, build API integrations, support frontend development, automate infrastructure, and write tested code. Participate in code reviews, agile delivery, on-call rotations, incident response, and proactive reliability improvements. The role requires strong Kotlin, Spring Boot, NoSQL, Terraform, Kubernetes, AWS/EKS, and CI/CD expertise, with optional experience deploying ML solutions, e-commerce search, recommender systems, SOLR, or Elasticsearch.
Summary Generated by Built In
The company and our mission: 

Zartis is a global AI transformation and technology consulting partner where talented engineers and technologists work on cutting edge innovation. We partner with ambitious organizations to design, build, and scale technology solutions that deliver real impact.

Our teams bring deep expertise in AI driven platforms, secure API architectures, and cloud native engineering. You will work on meaningful projects that accelerate the adoption of advanced technologies, from strategy and discovery through to full product delivery, helping turn complex challenges into measurable outcomes.

With engineering hubs across EMEA and LATAM, and long term partnerships in financial services, healthcare and life sciences, and energy and climate, we offer opportunities to work on projects that truly matter. Here, you will not just build technology, you will drive business impact and grow your career alongside industry leaders.

We are looking for a  Senior  Full Stack Engineer (Backend focused) to work on a project in the retail industry.


The project:

Our teammates are talented people that come from a variety of backgrounds. We’re committed to building an inclusive culture based on trust and innovation.

You will be part of a distributed team developing new technologies to solve real business problems and add some specific context here.

We are looking for someone with good communication skills, ideally with experience making decisions, being proactive, used to building software from scratch, and with good attention to detail. 

What you will do:
  • Own, develop and maintain backend services

  • Implement API integrations, support frontend development tasks, and contribute to infrastructure automation

  • Write clean, tested code and actively participate in code reviews

  • Collaborate closely in agile processes (Jira, Kanban)

  • Participate in on-call rotations, respond to incidents, and drive proactive problem resolution.

What you will bring:
  • Several years of professional software development experience

  • Strong backend expertise: Kotlin, Spring Boot, and MongoDB or other NoSQL databases

  • Proven cloud infrastructure skills: Implementing Infrastructure as Code using Terraform, designing CI/CD pipelines, and ensuring high availability and reliability of production services (Kubernetes, AWS/EKS).

  • Open and collaborative mindset with demonstrated flexibility in adapting to evolving requirements

  • Excellent English communication skills (CEFR C1 level) – both technical and interpersonal

Nice to have:
  • Data engineering experience: Bringing ML models and data science solutions to production

  • E-commerce domain knowledge: Experience with recommender systems, ranking, or information retrieval

  • Experience with SOLR or other search engines (e.g., Elasticsearch)

What we offer:
  • 100% Remote Work

  • WFH allowance: Monthly payment as financial support for remote working.

  • Career Growth: We have established a career development program accessible for all employees with a 360º feedback that will help us to guide you in your career progression.

  • Training: For Tech training at Zartis, you have time allocated during the week at your disposal. You can request from a variety of options, such as online courses (from Pluralsight and Educative.io, for example), English classes, books, conferences, and events.

  • Mentoring Program: You can become a mentor in Zartis or you can receive mentorship, or both.

  • Zartis Wellbeing Hub (Kara Connect): A platform that provides sessions with a range of specialists, including mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars with such professionals as well.

  • Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests.

Skills Required

  • Several years of professional software development experience
  • Strong backend expertise with Kotlin and Spring Boot
  • Experience with MongoDB or other NoSQL databases
  • Cloud infrastructure experience implementing Infrastructure as Code with Terraform
  • Experience designing CI/CD pipelines
  • Experience with Kubernetes and AWS/EKS
  • Experience ensuring high availability and reliability of production services
  • Excellent English communication skills at CEFR C1 level
  • Open, collaborative, and adaptable working style
  • Data engineering experience bringing ML models and data science solutions to production
  • E-commerce domain knowledge, including recommender systems, ranking, or information retrieval
  • Experience with SOLR or other search engines such as Elasticsearch
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The Company
HQ: Cork
237 Employees
Year Founded: 2009

What We Do

WHO WE ARE: Zartis is a digital solutions provider and Deloitte Fast50 company working across technology consulting, team augmentation and product development. We know good code. And we know tech outsourcing, which can be risky when you don't know who to trust. Deep technical experience and hard-earned know-how are our secret ingredients to help you build game-changing software technology, while avoiding unnecessary time and budget-wasting engineering shortfalls. We pride ourselves on the expertise of our engineers and the quality of the work we deliver. We are a diverse company, with team members drawn from over thirty different nationalities. WHAT WE DO: Zartis partners with firms across financial services, medtech, media, logistics technology, renewable energy, edtech, e-commerce, and more. Our teams of talented engineers are based across EMEA and LATAM and focus on delivering business success and digital improvement across application development, software architecture, DevOps and CI/CD, business intelligence, QA automation and technology integrations. OUR EXPERTISE: Zartis engineers are uniquely skilled in a broad array of technologies such as Javascript/Typescript (Angular, React, Vue, Node.js), .NET, Java, Python, Scala, Ruby, Go, and cloud-based architectures like AWS, Azure, and GCP. Whether you need expert consulting on improving your existing technology and processes or additional hands-on help with your development, we will adapt our services to best meet your needs.

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