Remote Fullstack Dev (Node.js/React) - Fintech & Crypto

4soft; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work up to 100%

Training and wellbeing budget

Team social & events

Job summary

4soft is hiring a Fullstack Developer for a fast-growing fiat-to-crypto payments scale-up. You’ll split time ~70% backend (Node.js/TypeScript, APIs, cloud) and ~30% frontend (React). You’ll own features end-to-end, implement secure code, and help optimize CI/CD and cloud infrastructure.

You’ll collaborate with product from discovery through delivery, ensuring robust, scalable systems and observability. English is essential for international work, with Polish support valued for team communication.

Qualifications

• Strong production-proven JavaScript/TypeScript experience with a real type system.
• Solid backend experience with Node.js; other languages are acceptable.
• Solid frontend experience with React or alternative frameworks.
• Hands-on cloud infrastructure experience on AWS, GCP, or Azure.
• Familiarity with CI/CD pipelines and modern deployment practices.
• Security-focused approach and good data handling practices.
• Interest in crypto and the product domain.
• Ability to translate business needs to technical constraints with product teams.
• Proficient English for international collaboration.
• Polish language skills for team communication.

Responsibilities

• Designing and building robust, scalable backend services and APIs in Node.js and TypeScript.
• Develop and maintain React-based frontend interfaces that are performant and maintainable.
• Work closely with product to shape features from discovery through delivery, not only building to a spec.
• Owning work end to end: scoping, building, shipping and monitoring.
• Writing secure, well-tested, production-ready code for systems with real uptime requirements.
• Contributing to and improving CI/CD pipelines, deployment processes and cloud infrastructure.
• Taking part in code reviews, architectural discussions and technical decision-making.
• Helping keep production systems reliable and observable, and responding when things go wrong.

Skills

JavaScript/TypeScript

Node.js

React

Cloud infrastructure

CI/CD

Security best practices

English (C1+)

Polish (B2+)

Tools

AWS

Terraform

Kubernetes

GCP

Azure

Job description

4soft is hiring a Fullstack Developer for a fast-growing fiat-to-crypto payments scale-up. You’ll split time ~70% backend (Node.js/TypeScript, APIs, cloud) and ~30% frontend (React). You’ll own features end-to-end, implement secure code, and help optimize CI/CD and cloud infrastructure.

You’ll collaborate with product from discovery through delivery, ensuring robust, scalable systems and observability. English is essential for international work, with Polish support valued for team communication.