Design and operate backend services and web apps, take ownership of features, ensure platform reliability, and collaborate with cross-discipline teams.
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 digital mental health sector.
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 revolutionising digital mental health care, creating the UK’s largest platform that supports and empowers young people with their mental health. As a Senior Software Engineer, you will help set the technical direction and build reliable, scalable systems that guide young people to the right help.
What you will do:
- Design, build, and operate a suite of Node.js backend services, React-based web apps, React Native mobile and web experiences that form the backbone of their platform.
- Take end-to-end ownership of features, from idea through to production, with a strong sense of accountability and user impact.
- Ensure the impact of a legacy platform through proactive maintenance, strategic incremental enhancements and high-quality technical support.
- Contribute to system design and architectural evolution.
- Lead by example in trunk-based development, automated testing, CI/CD, and infrastructure-as-code principles.
- Take ownership of performance, resilience, observability, maintainability, security, and accessibility.
- Actively collaborate across disciplines and mentor colleagues through pairing, code reviews, and knowledge-sharing.
- Drive a shared understanding of user needs, commercial priorities, and how technical decisions influence business outcomes.
- Participate in the out-of-hours on-call rota and improving system reliability and incident response processes.
- Continuously improve the systems you work on, applying a thoughtful and pragmatic approach to technical challenges.
- Stay current with industry best practices in engineering, CI/CD, and architecture.
What you will bring:
- At least 3+ years of hands-on experience in full-stack software development in a product-oriented environment.
- Proficiency in TypeScript, Node.js, and either React or React Native, as well as database technologies such as PostgreSQL and experience in delivering a web or native mobile application.
- Solid understanding of modern system architecture and the ability to contribute to its evolution.
- Commitment to quality, with experience shipping maintainable, scalable, and well-tested code.
- Ownership mentality with a focus on pragmatic delivery and continuous improvement.
- Skilled in agile practices, data-informed decision-making, and building reliability.
- Excellent communication and collaboration skills, including mentoring and inspiring peers, and building great relationships across disciplines.
Nice to have:
- Deep experience with React and React Native in production environments.
- Experience operating production systems and improving them through observability, testing, and thoughtful design.
- A track record of delivering product improvements that tie into measurable business and user outcomes.
- Familiarity with cross-platform design, mobile/web accessibility, and monorepos.
- Expertise in trunk-based development, test automation and infrastructure as code.
- Experience with scalable system design and architecture patterns.
- Exposure to cloud-native technologies, particularly GCP or AWS with Kubernetes.
What we offer:
- 100% Remote Work.
- WFH allowance: Monthly payment as financial support for remote working.
- 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, receive mentorship, or both.
- 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.
- 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.
- Flexible Working schedule.
- Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests.
Top Skills
AWS
GCP
Kubernetes
Node.js
Postgres
React
React Native
Typescript
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