Senior Fullstack Engineer (NestJS)

TL;DR

Senior Fullstack Engineer (NestJS/Node.js): Engineering a secure user management infrastructure and identity access management platform with an accent on scalable backend services and authentication protocols. Focus on optimizing authentication/authorization systems using OAuth, JWT, and SAML, and integrating AI tools to enhance security workflows.

Location: Remote in Ukraine or hybrid (office choice)

Company

A global custom product engineering company with over 4,000 specialists helping multinational organizations and startups solve complex business challenges.

What you will do

• Own end-to-end development of key features in identity and access management (IAM).
• Design and optimize authentication and authorization systems using OAuth, JWT, SAML, and WebAuthn.
• Build and scale backend services using NestJS, Node.js, TypeScript, and AWS.
• Collaborate with a cross-functional team to drive technical excellence and shape platform architecture.
• Leverage cutting-edge AI tools to improve development and security workflows.
• Develop frontend components using React (approximately 10% of the role).

Requirements

• 6+ years of experience as a Backend Developer specializing in NestJS and Node.js.
• Must be based in Ukraine.
• Proven experience in high-scale production environments and complex distributed systems.
• Strong proficiency in TypeScript and experience with React.
• Expertise in authentication, security, and identity management (SSO).
• Knowledge of Kafka, Redis, MySQL, and AWS.

Nice to have

• Familiarity with MongoDB.
• Passion for using AI tools to boost productivity.

Culture & Benefits

• Radical flexibility with a choice between remote and office work.
• Company-paid medical insurance and mental health support.
• Learning budget including Udemy access, language courses, and certifications.
• Internal mobility opportunities across various domains.
• Professional growth through internal meetups, conferences, and workshops.