Senior Fullstack Engineer, Java, React

Zartis

Senior Software Engineer developing Java and React solutions for a financial services project. Collaborating in a hybrid environment to drive technology impact with AI.

Posted 6/22/2026full-time🇮🇪 IrelandSenior💰 €52,000 - €70,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsDockerDynamoDBEC2JavaJenkinsKubernetesMicroservicesMySQLReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Design and deliver full-stack features across Java Spring Boot APIs and TypeScript/React frontends.
Contribute to the EKS/Kubernetes migration and ongoing cloud-native evolution on AWS.
Write clean, well-tested code with SonarCloud quality gates, Trivy security scans, and GitHub Actions CI/CD pipelines.
Work with AWS RDS Aurora (MySQL) and DynamoDB for relational and document storage patterns.
Integrate with third-party platforms (core banking systems, CRM) where relevant to your stream.
Participate in code review, technical design discussions, and architectural decision-making.
Mentor colleagues and share patterns and practices from broader industry experience.
Bring enthusiasm for AI-augmented development — the team actively experiments and values engineers who do the same.

Requirements

What you’ll need

7+ years of professional software development experience.
Strong proficiency in Java and Spring Boot.
Solid TypeScript and React experience for building complex, data-driven UIs.
Sound understanding of REST API design (OpenAPI/Swagger), microservices, and distributed systems.
Hands-on experience with AWS (EC2, RDS Aurora, DynamoDB, EKS or comparable Kubernetes environments).
Familiarity with CI/CD pipelines using GitHub Actions or Jenkins, Docker, and container security tooling.
Ability to work autonomously in a small, cross-functional team with genuine ownership of outcomes.
Nice to have: Experience in a regulated financial services environment (FCA/PRA, PCI-DSS, or similar).
Familiarity with core banking platforms such as Mambu, or CRM integrations with Dynamics 365.
Experience with SonarCloud, SAST/DAST tooling, or security-focused development practices.
Background across multiple companies or product teams — breadth of perspective is genuinely valued here.
Active interest in or practical use of AI-augmented development tools (Copilot, Claude, Cursor, etc.).

Benefits

Comp & perks

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.

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Hard Skills & Tools

JavaSpring BootTypeScriptReactREST API designmicroservicesAWSEKSDynamoDBCI/CD

Soft Skills

mentoringautonomycross-functional teamworkownershipenthusiasm for AI-augmented development