Senior Fullstack Engineer

**The company and our mission:** Zartis is a digital solutions provider working across technology strategy, software engineering and product development. We partner with firms across financial services, MedTech, media, logistics technology, renewable energy, EdTech, e-commerce, and more. Our engineering hubs in EMEA and LATAM are full of talented professionals delivering business success and digital improvement across application development, software architecture, CI/CD, business intelligence, QA automation, and new technology integrations. We are looking for a **Senior Software Engineer** to work on a project in the financial 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’ll be working with long-established, market-leading nutritional clients through a wide range of investment and advisory services. Our client is continuing to modernise and scale its digital platforms, making technology central to delivering secure, reliable, and high-quality financial services experiences. You will be part of a distributed team developing new technologies to solve real business problems. 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:** ● Design, build and evolve high-quality backend services primarily using Kotlin, while also working with Java, within a Kubernetes-based microservice ecosystem. ● Deliver end-to-end full-stack features, contributing confidently to frontend development using Vue.js or React. ● Work within Self-Contained Systems to deliver independently deployable services and full-stack features. ● Design and implement integrations using HTTP-based APIs/feeds and Kafka Streams, ensuring reliable and scalable communication between systems. ● Participate in architecture and technical design discussions, proposing pragmatic solutions aligned with product and platform goals. ● Take ownership of quality across the full SDLC, including automated testing, CI/CD and production readiness. ● Collaborate across QA, DevOps, Infrastructure and Product, bringing a T-shaped approach to engineering. ● Support operational excellence through monitoring, troubleshooting and continuous improvement of services in AWS/Kubernetes production environments **What you will bring:** ● 8+ years of professional software development experience, or equivalent senior-level expertise. ● Strong full-stack engineering experience with a clear backend focus. ● Strong hands-on Kotlin experience – this is a key requirement and the primary backend language. ● Solid professional Java experience and strong knowledge of the JVM ecosystem. ● Good professional experience with Vue.js or React, with the ability to contribute independently to frontend development. ● Strong experience with microservices, distributed systems and HTTP-based APIs. ● Experience with Kafka; Kafka Streams experience is a plus. ● Experience deploying and running applications in Kubernetes and AWS environments. ● Working knowledge of MongoDB and PostgreSQL, or comparable NoSQL/SQL databases. ● A T-shaped mindset, with strong backend expertise and the ability to work effectively across frontend, QA, DevOps and Infrastructure. ● Strong communication skills and a proactive, detail-oriented approach. **Nice to have:** ● Event-driven or message-based systems beyond core Kafka usage. ● UX design background or strong UX intuition. ● Flutter app development. ● Frontend performance optimization (bundle size, Core Web Vitals, perceived speed). ● Experience with security / compliance in e-commerce contexts. **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 [](http://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.4 - **Multicultural working environment:** We organize tech events, webinars, parties, and activities to do online team-building games and contests.