✦ Luna Orbit — Software Engineering

Senior Software Engineer, Core Identity (Auth0)

at Okta

📍 Barcelona, Spain Onsite Posted March 19, 2026
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Position Details

Type Full-Time
Experience senior
Exp. Years 5+ years
Education Not specified
Category Software Engineering

About this role

This role involves developing core identity services using Node.js and TypeScript, focusing on distributed systems, security, and cloud infrastructure to support Auth0's platform.

Key Responsibilities

  • Design and develop identity pipeline services
  • Optimize cloud infrastructure
  • Ensure system security and performance
  • Collaborate with cross-functional teams
  • Support large-scale authentication systems

Technical Overview

The environment includes Node.js, TypeScript, JavaScript, MongoDB, PostgreSQL, Redis, AWS, Azure, emphasizing large-scale, secure, distributed identity systems.

Ideal Candidate

The ideal candidate is a senior software engineer with over 5 years of experience in Node.js, TypeScript, and JavaScript, with expertise in distributed systems, cloud infrastructure, and identity protocols like OAuth and SAML.

Must-Have Skills

5+ years experienceNode.jsTypeScriptJavaScriptMongoDBPostgreSQLRedisAWSAzure

Nice-to-Have Skills

cloud infrastructuredistributed systemssecurityidentity protocols

Tools & Platforms

Node.jsTypeScriptMongoDBPostgreSQLRedisAWSAzure

Required Skills

Node.jsTypeScriptJavaScriptMongoDBPostgreSQLRedisAWSAzure

Hard Skills

Node.jsTypeScriptJavaScriptMongoDBPostgreSQLRedisAWSAzureCloud infrastructureDistributed systemsSecurityAuthenticationIdentity protocols

Soft Skills

problem-solvingcollaborationcommunicationteamworkadaptability

Industry & Role

Industry SaaS
Job Function Building and maintaining core identity infrastructure
Role Subtype Backend Developer
Tech Domains Node.js, TypeScript, JavaScript, MongoDB, PostgreSQL, Redis, AWS, Azure

Keywords for Your Resume

software engineernode.jstypescriptjavascriptmongodbpostgresqlredisawsazuredistributed systemssecurityauthenticationidentity protocolssenioronsite

Deal Breakers

Less than 5 years experience, No experience with Node.js or TypeScript, Lack of cloud platform experience, Onsite location only

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