Senior Frontend Product Engineer – React & TypeScript Innovation

Job Description

Company Overview

Koinly is a rapidly growing fintech company that provides cryptocurrency tax reporting and portfolio tracking solutions for users around the world. The platform simplifies complex crypto tax calculations and enables investors, traders, and businesses to manage their digital assets efficiently. With a strong focus on innovation, usability, and scalability, the company develops high-performance software products designed to handle large-scale financial data securely and accurately.

The company culture promotes creativity, collaboration, and continuous learning. Team members are encouraged to contribute ideas, improve product experiences, and solve real-world technical challenges. Working at Koinly means becoming part of a modern technology-driven environment where engineering excellence and user satisfaction are equally valued.

Job Details

• Job Title: Senior Frontend Product Engineer – React & TypeScript Specialist
• Company: Koinly
• Employment Type: Full-Time
• Work Environment: Remote / Hybrid
• Department: Product Engineering
• Experience Level: Senior-Level
• Industry: FinTech / SaaS / Cryptocurrency Technology
• Technology Stack: TypeScript, React.js, JavaScript, REST APIs, Frontend Architecture

Job Description

Koinly is looking for a highly skilled Senior Frontend Product Engineer who is passionate about building modern, scalable, and intuitive web applications using React and TypeScript. In this role, you will work closely with designers, product managers, and backend engineers to create seamless user experiences for crypto tax and portfolio management platforms.

The ideal candidate will have extensive experience in frontend development, strong problem-solving abilities, and a product-oriented mindset. You will be responsible for developing responsive interfaces, improving application performance, and implementing scalable frontend architecture that supports millions of users worldwide.

This position is ideal for developers who enjoy solving complex technical challenges while working in a fast-paced and innovative fintech environment. You will have the opportunity to contribute to product strategy, technical decisions, and long-term frontend improvements.

Key Responsibilities

• Develop and maintain scalable frontend applications using React.js and TypeScript.
• Build reusable UI components and maintain consistent frontend architecture standards.
• Collaborate with UI/UX designers to create visually appealing and highly functional user interfaces.
• Optimize web applications for performance, speed, and responsiveness across devices.
• Integrate frontend systems with REST APIs and backend services.
• Participate in technical planning, code reviews, and engineering discussions.
• Improve application accessibility, usability, and overall customer experience.
• Troubleshoot frontend issues, debug performance bottlenecks, and implement effective solutions.
• Write clean, maintainable, and efficient code following industry best practices.
• Stay updated with the latest frontend technologies, frameworks, and engineering trends.
• Mentor junior developers and contribute to team knowledge-sharing initiatives.
• Collaborate with cross-functional teams to deliver high-quality product features on schedule.

Required Skills & Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• Strong professional experience with React.js and TypeScript development.
• Advanced knowledge of modern JavaScript (ES6+).
• Experience with frontend state management libraries such as Redux or Context API.
• Solid understanding of responsive web design and cross-browser compatibility.
• Familiarity with frontend testing frameworks such as Jest or Cypress.
• Experience consuming RESTful APIs and handling asynchronous operations.
• Strong understanding of frontend performance optimization techniques.
• Knowledge of Git version control and collaborative development workflows.
• Ability to work independently in a remote or distributed team environment.
• Excellent communication and problem-solving skills.

Preferred Qualifications:

• Experience working in fintech, SaaS, or cryptocurrency-related platforms.
• Familiarity with GraphQL and modern frontend tooling.
• Understanding of scalable frontend architecture patterns.
• Experience with design systems and component libraries.

Benefits

• Competitive compensation package.
• Flexible remote or hybrid work environment.
• Opportunity to work with cutting-edge fintech technologies.
• Exposure to large-scale frontend engineering projects.
• Professional growth and career advancement opportunities.
• Collaborative and supportive engineering culture.
• Access to learning resources, training programs, and technical workshops.
• Work-life balance with flexible scheduling options.
• Opportunity to contribute to globally used cryptocurrency products.

Why Join Koinly?

Joining Koinly offers the opportunity to work on impactful financial technology products that simplify cryptocurrency management for users worldwide. The company values innovation, technical excellence, and collaboration, making it an ideal workplace for frontend engineers who want to grow their careers while contributing to meaningful software solutions.

As a Senior Frontend Product Engineer, you will have the chance to shape user experiences, improve product performance, and influence the future direction of modern fintech applications. The role combines technical depth, product ownership, and collaborative teamwork in a dynamic and forward-thinking environment.

How to Apply

Interested candidates should prepare the following documents before applying:

• Updated resume showcasing frontend engineering experience.
• Portfolio or GitHub profile demonstrating React and TypeScript projects.
• Cover letter highlighting relevant product engineering experience and interest in fintech technologies.

Applications can be submitted through the official careers page of Koinly or through the designated recruitment platform mentioned in the job posting. Shortlisted candidates may be invited for technical interviews, coding assessments, and product-focused discussions.