Senior/Principal Software Engineer (React)
ZartisRemote
Full Time
Posted December 11, 2025
Not Specified
Remote
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Application opens on company website
Job Description
A senior-level role focused on designing, developing, and maintaining modern React-based web applications for the banking and financial services sector, ensuring security, performance, and compliance while collaborating with cross-functional teams in a regulated environment.
Key Responsibilities
- Design, develop, and maintain React-based web applications ensuring security, performance, and compliance.
- Collaborate with cross-functional teams to translate business and regulatory requirements into technical solutions.
- Write clean, maintainable, and testable front-end code following best practices and standards.
- Ensure applications meet non-functional requirements such as security, accessibility, and cross-browser compatibility.
- Work with QA and automation teams to achieve high test coverage and production readiness.
- Support and troubleshoot production systems, diagnose issues, and communicate with stakeholders during incidents.
- Contribute to technical documentation and share system knowledge within the team.
- Stay updated with modern front-end technologies and promote continuous improvement within the engineering team.
Requirements
- 7 years of professional experience in front-end development, with strong hands-on experience using React.
- Excellent knowledge of JavaScript ES6, TypeScript, HTML, and modern CSS.
- Strong experience building single-page applications and working with RESTful APIs.
- Experience with modern React patterns such as hooks, component composition, and state management.
- Solid understanding of secure web application development, particularly in regulated environments.
- Experience ensuring accessibility according to WCAG standards and cross-browser compatibility.
- Experience with front-end testing, including unit and/or integration testing.
- Proficiency with Git and modern development workflows.
- Experience working in Agile Scrum teams.
- Ability to collaborate effectively with product managers, business stakeholders, designers, backend engineers, and vendors to translate business and regulatory requirements into technical solutions.
- Ability to build clean, maintainable, and testable front-end code following best practices and established development standards.
- Support production systems by diagnosing and resolving issues within defined SLAs and communicating clearly with stakeholders when incidents arise.
- Contribute to technical documentation and ensure system knowledge is shared across the team.
Benefits & Perks
100% remote work
Work from Home (WFH) allowance with monthly financial support
Career development program with 360º feedback
Time allocated during the week for tech training (online courses, books, conferences, etc.)
Mentoring program (opportunities to be a mentor or mentee)
Access to Zartis Wellbeing Hub and Kara Connect platform with sessions with mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars
Participation in multicultural work environment with online team-building events, webinars, parties, and contests
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