TL;DR

Senior Backend Engineer (Fintech): Building and optimizing scalable backend services and secure REST APIs for financial applications with an accent on cloud architecture using AWS serverless services, PostgreSQL database design, and Domain-Driven Design. Focus on designing complex financial business logic, practicing Test-Driven Development, and ensuring system reliability and security.

Location: Remote, Portugal

Company

%hirify_global% is a specialized IT consulting partner based in Portugal with 18 years of experience, focused on agile, people-centered, and impactful solutions.

What you will do

Design and build scalable backend services and APIs using TypeScript and Node.js
Architect data models and implement complex financial business logic
Practice Test-Driven Development and maintain high test coverage
Apply Domain-Driven Design principles to model financial domains
Own AWS infrastructure decisions and implementation (Lambda, RDS, Cognito)
Design and optimize PostgreSQL databases and data models
Build secure REST APIs with authentication and authorization
Collaborate with product and business stakeholders and take initiative on technical decisions
Debug production issues, optimize performance, and ensure system reliability

Requirements

Must be based in Portugal or able to work remotely from Portugal
6+ years of backend development experience with production systems
Significant experience building financial applications (fintech, banking, payments, trading platforms, or investment systems)
Strong Test-Driven Development (TDD) practices
Solid understanding of Domain-Driven Design (DDD) principles
Experience with AWS serverless and managed services (Lambda, RDS, Cognito)
Proficiency in PostgreSQL database design and optimization
Strong proficiency in TypeScript and Node.js

Nice to have

Experience with multi-currency systems or investment platforms
Knowledge of Infrastructure as Code (Terraform, CloudFormation)
Experience with event-driven architectures and message queues
Understanding of regulatory and compliance frameworks (e.g., KYC/AML)
Knowledge of financial modeling or accounting principles
Arabic language skills or experience with RTL/internationalization

Culture & Benefits

No-term full-time contract
Health insurance
22 days of paid vacation plus 4 extra days annually
Meal allowance on card (Coverflex)
Referral bonus and special discounts
Annual training budget and team-oriented culture
Opportunity to join a dynamically growing international company
Challenging projects with unique growth opportunities