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Sr Backend Engineer

Argentina

Virtasant is a leading cloud consulting services provider. We heavily focus on lift & shift, cloud-native development, cloud cost optimization, and migration services. As a consulting company, we often are faced with the challenge to create an engineering team in a matter of a week or two. To do that, we have created a secondary support business that runs an engineering talent network and provides staffing services.

Our client is a US-based FinTech company that develops a payment processing gateway. They are a globally distributed team of software experts who provide an all-in-one platform with embedded payment solutions.

This role will be responsible for developing new products and capabilities on the core platform to meet customer needs. This person will work with our largest customers to solve issues and resolve bugs. The platform is complex and therefore presents a fantastic opportunity to learn about embedded payments and payments facilitation.  

We are looking for Senior Backend Engineers who can operate both as individual contributors and technical leaders. This is a high-impact role where you will lead critical initiatives around microservices migration, serverless architecture, and platform scalability. You'll be a key point of contact in planning, leading, and executing technical solutions while mentoring others and setting standards for engineering excellence.

 

Position Requirements:

  • Build and maintain backend services in PHP, using the Phalcon framework
  • Work with PostgreSQL for transactional processing and data modeling
  • Maintain containerized services with Docker
  • Interact with ActiveMQ for asynchronous messaging workflows
  • Support or maintain AWS-based microservices using Node.js/TypeScript and serverless architecture as needed
  • participate in architecture planning and propose clean, scalable backend solutions
  • Improve platform maintainability and performance
  • Collaborate across distributed teams and review peer code
  • Debug production issues and ensure system reliability

Mandatory qualifications:

  • Node.js with TypeScript and PHP.

  • AWS: EC2, Lambda, DynamoDB, 

  • Active MQ

  • GitHub
  • Database: PostgreSQL and DynamoDB.

Nice to Have:

  • Phalcon

Our recruitment process

  • Recruiter interview (30 min)
  • Tech interview (30 min)
  • Interview with the client (20 min phone screen)
  • Tech Interview with client that includes a small coding exercise(1 hour)

We strive to move efficiently from step to step so that the recruitment process can be as fast as possible.

What we offer

  • Totally remote, full time (40h/week)
  • Flexible office hours 
  • Contractor agreement
  • Payment in USD, by-weekly or monthly - your choice

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