NodeJS Engineer, Leadtech

Fintech

Salary not provided

SQL

AWS

TypeScript

JavaScript

Node.js

Jest

Mocha

Git

REST API

Senior and Expert level

Remote in Spain

Online Project Development

Be an early applicant

Online Project Development

501-1000 employees

B2CRecruitmentMarketingSaaSProduct ManagementeCommerce

Be an early applicant

Salary not provided

SQL

AWS

TypeScript

JavaScript

Node.js

Jest

Mocha

Git

REST API

Senior and Expert level

Remote in Spain

501-1000 employees

B2CRecruitmentMarketingSaaSProduct ManagementeCommerce

Company mission

To bring forward new business ideas and empower employees to achieve their goals in the online business world.

Job

Company

Role

Who you are

Bring proven experience in the payments, banking, or FinTech industry, with a solid understanding of industry-specific challenges and requirements
Have 5+ years of experience in Node Js development. Strong proficiency in JavaScript and TypeScript.
Hands-on experience with Node.js frameworks such as Express and NestJS
Experience building and consuming REST APIs
Knowledge of asynchronous programming, event-driven architecture, and microservices
Experience with authentication & authorization mechanisms (JWT, OAuth, session management)
Strong understanding of scalability principles for distributed applications
Experience in database integration (SQL and NoSQL) and designing efficient schemas
Knowledge of security best practices, including data protection, encryption, and compliance
Demonstrate exceptional problem-solving skills, with a focus on scalability, performance, and security
Hands-on experience with automated testing frameworks (Jest, Mocha, etc.)
Familiarity with Git for version control and collaborative development
(Nice to have) Experience with AWS
Fluent in both spoken and written English
Spanish is a plus!

What the job involves

We are looking for a Node.js Developer to join our team and help build and maintain scalable backend services
You will be responsible for designing, developing, and optimizing backend solutions using Node.js, TypeScript, and frameworks like Express and NestJS
The ideal candidate has strong technical expertise in building REST APIs, managing asynchronous processes, and ensuring security and performance best practices
The ideal candidate will be a strategic thinker, a data-driven developer, and an expert in frontend technologies within the payments sector
We value professionals with strong Test-Driven Development (TDD) skills and the ability to mentor and collaborate effectively with other developers
Develop and maintain backend services using Node.js and TypeScript
Design and implement RESTful APIs that are efficient, scalable, and maintainable
Work with asynchronous programming paradigms and apply best practices to avoid pitfalls
Actively participate in the design and development of the payment system, addressing edge cases such as failures, retries, concurrency issues, and ensuring a consistent and seamless user experience
Ensure security compliance, authentication, and authorization between multiple systems and environments
Design database schemas that effectively support business processes
Collaborate with frontend developers to integrate user-facing elements with backend logic

Our take

Designing and adopting digital services can be inaccessibly expensive and complex for many businesses. Leadtech solves this problem by providing companies with innovative digital solutions.

Leadtech is well served by the diversity of its solutions, which has enabled it to build an impressive customer base. Its suite of tools covers everything from UX design to SEO, content to backend. This ensures that Leadtech has broad appeal to businesses looking for all-in-one digital solutions.

Leadtech has expanded considerably in recent years, now boasting an international team of over 250 people. Growing its talent will be an essential element of the company's continued success in the coming years, as will its commitment to innovation.

Steph

Company Specialist at Welcome to the Jungle

Company

Company benefits

Flexible timetable
Barceloneta district, close to the beach
Happy Fridays and team events
Tickets Restaurant
Fresh fruit and coffee
Game room and terrace

Company HQ

La Barceloneta, Barcelona, Spain

Leadership

Germán Castillo

(CEO)

Previously founded Grupo Germinet and advertising platform Solimba Aplicaciones.

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