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Tezos is the product of many organizations and individuals across the globe working together on an open-source project.

Frontend Engineer

Madfish

Madfish

Software Engineering
Ukraine
Posted on Oct 10, 2025

We are seeking a highly skilled and experienced Senior Frontend Engineer to join our dynamic team. As a key contributor to our product development, you will be responsible for developing, and maintaining complex frontend applications using React/Next JS. We are looking for a versatile engineer with a strong foundation in frontend development and a solid understanding of backend concepts.

Responsibilities:

● Collaborate with designers, product managers, frontend and backend engineers to deliver exceptional user experiences.

● Write clean, maintainable, and efficient code that adheres to best practices.

● Optimize frontend performance and ensure cross-browser compatibility.

● Contribute to backend development tasks as needed, leveraging your understanding of backend concepts.

● Participate in code reviews and provide constructive feedback.

● Stay up-to-date with the latest frontend technologies and trends.

Requirements:

● Proven experience as a Senior Frontend Engineer with at least 5 years of professional experience.

● Expert-level proficiency in React and its ecosystem (Redux, Context API, Hooks).

● Strong understanding of Typescript, Javascript, HTML, and CSS.

● Experience with backend development (Node.js, Golang, or similar) is a plus.

● Knowledge of frontend performance optimization techniques.

● Experience with testing frameworks (Playwright, Cypress, or similar).

● Experience with Kubernetes

● Experience with React Native (not mandatory, but preferred as we have recently introduced it into our technology stack).

● Ability to leverage AI tools (e.g., Cursor) to enhance developer experience and improve engineering velocity.

● Excellent problem-solving and debugging skills.

● Strong communication and collaboration skills.

● Ability to work independently and as part of a team.

● Passion for building exceptional user experiences.

Bonus Points:

● Experience with Github actions.

● Experience with Datadog.

Social package & benefits:

- Full medical insurance
- MacBook & accessories
- English lessons

- Accountant assistance

- Minimal bureaucracy, synergy, and formalities, primarily focusing on effective communication

Hiring process:

1. Screening call with Recruiter (soft skills interview) ~ 20 min

2. Technical interview with the CEO of Mondu + Local Tech Expert ~ 60 min

3. Final interview with Manager from Mondu + CEO of Smart Choice Software ~ 60 min