Remote Senior JavaScript Engineer - Fintech & Web3

JobCubby; Oslo; Hybrid; NOK 438,000 - 501,000; Full time

Benefits offered by this job

Remote-friendly environment

Medical insurance

Udemy access and learning benefits

Language courses

Company-paid certifications

Job summary

Ciklum is seeking an Expert JavaScript Engineer to join our team full-time in Romania. You will be part of a cross-functional development group building and scaling wallet infrastructure and developer tooling for leading fintech clients.

You will design and ship features across frontend and backend, collaborate with product and design, and uphold high standards for performance, security, and user experience. Remote-friendly with strong growth opportunities.

Qualifications

• 3–5 years of experience building and shipping production-grade full-stack web apps.
• Proficiency with Node.js and Express or similar frameworks.
• Comfort working across frontend and backend systems in evolving codebases.
• Strong emphasis on clean, maintainable code and performance.
• Experience collaborating with product and design teams.

Responsibilities

• Design and implement rich frontend experiences and scalable backend services powering the wallet infrastructure.
• Own features across the stack from design through testing, deployment and optimization.
• Develop backend services and APIs for authentication, wallets, and payments.
• Build user-facing features and frontend tooling for end-user and developer-facing apps.
• Collaborate with Product, Design and other engineers to deliver robust features.
• Contribute to performance, reliability and scalability improvements.

Skills

Full-stack development

Node.js

Express

Frontend & Backend

Cross-functional collaboration

Tools

React

Node.js

Express

Job description

Ciklum is seeking an Expert JavaScript Engineer to join our team full-time in Romania. You will be part of a cross-functional development group building and scaling wallet infrastructure and developer tooling for leading fintech clients.

You will design and ship features across frontend and backend, collaborate with product and design, and uphold high standards for performance, security, and user experience. Remote-friendly with strong growth opportunities.