Senior Backend Developer

Lil Horse Lab; Argentina; On-site; ARS 23,743,000 - 41,551,000; Full time

Job summary

Lil Horse Lab is seeking a Senior Backend Developer proficient in Node.js and TypeScript. The role emphasizes building scalable backend services, applying DDD and Hexagonal Architecture, and ensuring reliability.

Collaboration with cross-functional teams is essential to deliver robust solutions. The candidate should have at least five years of experience, experience with Jest testing, and familiarity with MongoDB and MySQL or PostgreSQL.

Qualifications

• Minimum 4 years of Backend Developer experience with Node.js and NestJS.
• Strong knowledge of NoSQL and SQL databases.
• Experience applying DDD and Hexagonal Architecture.
• Proficient with TypeScript and OOP concepts.

Responsibilities

• Design and maintain backend applications using Node.js and TypeScript.
• Implement MongoDB and SQL databases (MySQL or PostgreSQL).
• Apply DDD and Hexagonal Architecture across services.
• Develop tests with Jest and ensure code quality.
• Collaborate with front-end, design, and product teams to translate requirements into solutions.
• Integrate backend services with front-end components and third-party APIs.

Skills

Node.js

TypeScript

NestJS

Domain-Driven Design

Hexagonal Architecture

MongoDB

MySQL/PostgreSQL

Jest

CI/CD

Object-Oriented Programming

Docker

Kubernetes

GoLang

Tools

Git

Docker

Kubernetes

Webpack

Gulp

Job description

We are seeking a Senior Backend Developer specialized in Node.js and TypeScript with at least five years of experience.

Responsibilities

• Design and maintain backend applications using Node.js and TypeScript.
• Implement NoSQL (MongoDB) and SQL (MySQL or PostgreSQL) databases.
• Apply Domain-Driven Design (DDD) and Hexagonal Architecture.
• Develop and execute tests using Jest.
• Optimize backend applications for performance and scalability.
• Ensure code maintainability, readability, and adherence to coding standards.
• Collaborate with front-end developers, designers, and product managers to understand requirements and translate them into effective technical solutions.
• Integrate backend services with front-end components and third-party APIs.
• Monitor and troubleshoot production issues, ensuring high availability and reliability of backend services.
• Stay up-to-date with the latest backend development technologies and trends.
• Contribute to the development process within an Agile methodology.
• Consider security best practices throughout the development process.
• Design and develop backend services for features like user authentication, data processing, and billing.
• Minimum of 4 years of experience as a Backend Developer with Node.js using the NestJS framework.
• Experience in designing DDD and Hexagonal Architecture.
• Deep understanding of Object-Oriented Programming.
• Proficiency in TypeScript, including class design, interface definitions, and type management.
• Experience with MongoDB.
• Proficiency with MySQL or PostgreSQL.
• Familiarity with API integrations and data fetching techniques.
• Experience with build tools (e.g., Webpack, Gulp) and version control systems (e.g., Git).
• Understanding of CI/CD pipelines and deployment processes.
• Knowledge of web accessibility (WCAG) guidelines.
• English is desirable, however, it is not mandatory.

Preferred Qualifications

• Knowledge of AWS EC2 and CI/CD.
• Experience with GoLang.
• Experience in designing microservices architecture.
• Familiarity with containerization technologies such as Docker and orchestration tools like Kubernetes.
• Experience with serverless architecture and cloud services.
• Understanding of security best practices for web applications.

Compensation: CAD $2,000 - $3,500 This offer is an agreement for services as a Contractor with a competitive fee set in CAD.

We provide a supportive work environment that encourages professional growth and development.

Join us in shaping the future of our company and making a significant impact on our success.

Lil Horse powered by Draketech is an equal opportunity employer. We value diversity and inclusion and are committed to creating a workplace that embraces the uniqueness of every individual.

We are a strong team of dynamic developers, designers, and marketers passionate about creating and supporting businesses across all sectors to make them future-ready so they can impact society long term.

Our approach combines modern design, marketing strategy, visualization tools, and business advisory, positioning our clients in a class of sustainable, high-impact brands.