Backend Developer Node.js (Portugal, remote)

Zero to One Search | Recruitment Agency; Portugal; Remote; EUR 45,000 - 65,000; Full time

Benefits offered by this job

Annual training budget

Wellness perks

Flexible hours

Real ownership from day one

Job summary

The recruitment client is seeking a strong Backend Developer to join their fast-scaling European fintech team. This fully remote role is based in Portugal and focuses on building an event-driven microservice platform using Node.js/TypeScript, Docker, PostgreSQL and Kafka.

You will work in cross-functional Agile teams, taking ownership from day one, and contribute to reliable data processing and system performance while delivering clean, scalable code.

Qualifications

• Hands-on backend development with Node.js/TypeScript.
• Experience working in cross-functional teams.
• Knowledge of payment processing or PCI-DSS is a bonus.

Responsibilities

• Integrate new cashier systems and external platforms into microservice architecture.
• Develop with Node.js/TypeScript in an event-driven setup.
• Ensure reliable communication between internal and external systems.
• Optimize data parsing and serialization across formats.
• Identify and resolve data transformation issues.
• Write clean, maintainable code with long-term platform quality.
• Collaborate in cross-functional agile teams with ownership.

Skills

Node.js

TypeScript

Analytical thinking

English proficiency

Tools

Docker

PostgreSQL

Kafka

Job description

We're partnering with a fast-scaling European fintech/mobility company backed by some of the biggest names in energy, finance, and mobility to find a strong Backend Developer to join their engineering team

.They operate the largest B2C network for digital fuelling in Europe — in-app and in-car payments at petrol stations across the continent. Their platform is event-driven, microservice-based, and genuinely growing

.

What you'll be working on

• Integrating new cashier systems and external platforms into an event-driven microservice architecture
• Taking the existing architecture to the next level using Node.js (TypeScript), Docker, PostgreSQL, Kafka, and emerging tools
• Ensuring seamless communication between internal systems and external platforms with high reliability and fault tolerance
• Developing and optimising algorithms for efficient data parsing and serialisation across diverse data structures and formats
• Proactively identifying and resolving issues in data transformation to enhance system performance and adaptability
• Writing clean, maintainable code that contributes to the long-term quality and sustainability of the platform
• Working in cross-functional agile teams with real ownership from day one

The profile

• Several years of hands-on backend development experience, preferably with Node.js/TypeScript
• Strong analytical thinker who can own problems end to end
• Good written English — you'll be working in cross-functional teams
• Bonus: experience with payment processing or PCI-DSS standards

The setup

• Fully remote — must be based in Portugal
• Permanent contract, competitive salary, flexible hours
• Annual training budget, wellness perks, real ownership from day one