Senior Software Engineer (React / Node.js)

Zartis

Remote

Full Time

Posted May 6, 2026

Not Specified

Remote

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Job Description

A Senior Software Engineer responsible for designing and implementing scalable frontend features using React and TypeScript, collaborating with cross-functional teams to deliver high-quality, maintainable applications in the green energy industry.

Key Responsibilities

Design and deliver scalable frontend features using TypeScript and React for large-scale applications.
Take ownership of features from discovery through to release, contributing to architectural decisions and evolving patterns.
Build shared components and tooling while writing well-tested, high-quality code.
Collaborate with product managers, designers, and backend engineers to create intuitive user experiences.
Continuously improve platform performance, scalability, and overall quality.

Requirements

5 years of production experience building frontend applications with TypeScript and React.
Hands-on experience with Node.js.
A strong understanding of component architecture, state management, and patterns for scaling React applications.
A track record of delivering meaningful features or systems with a degree of ownership.
A focus on performance, reliability, and long-term maintainability in everything you build.
Experience with end-to-end testing in modern frontend environments.
The confidence to collaborate across disciplines and contribute to technical discussions.
Good communication skills, ideally with experience making decisions, being proactive, used to building software from scratch, and with good attention to detail.
Experience working on large-scale applications used by both customers and internal teams.
Experience contributing to architectural decisions and evolving patterns as the codebase grows.

Benefits & Perks

100 Remote Work

WFH allowance

Monthly payment as financial support for remote working

Career development program with 360º feedback

Time allocated during the week for tech training (online courses, books, conferences, events)

Mentoring program (opportunities to become a mentor or receive mentorship)

Access to Zartis Wellbeing Hub and Kara Connect (sessions with mental health professionals, nutritionists, physiotherapists, fitness coaches, webinars)

Multicultural working environment with organized tech events, webinars, parties, online team-building games and contests