Lead/Senior Full-stack JavaScript developer (React/Node/ReactNative) On-site only Insiders to $4000

Madfish

Madfish

Software Engineering

Ukraine · Lviv, Lviv Oblast, Ukraine,

USD 4k-4k / month

Posted on May 10, 2026

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work only an office format.

What we expect from the candidate:

• 5+ years of experience in full-stack web development.

Advanced proficiency in JavaScript/TypeScript, React (ReactNative), Next.

•Proofed experience in Node.js with Express.js and Nest.js frameworks.

•Knowledge of MySQL, PostgreSQL, MongoDB and Redis.

•Deep knowledge and understanding of networking - REST API standards, HTTP/HTTPS methods.

•Experience with Git.

What we offer:

- additional bonuses to salary (can reach +100% of your salary)

- opportunity for rapid career growth

- free study in our Corporate English Academy

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- corporate events, teambuildings, etc.


Job Responsibilities:

1. Team Leadership

2. Work with PEs of JD and ensure that
the initiatives are led and delivered to closure

3. Mentor and guide engineers.

4. Collaborate with the product managers , challenge them in terms of features, and keep the delivery timeline intact

5. Design, develop, and maintain full-stack features for a cloud-based platform

6. Participating in calls with clients.

Interview Rounds:

1. Meeting with a recruiter, English test

2. Front-end technical interview

3. Back-end technical interview

4. Test task

5. Meeting with team