Full Stack Engineer

About the Role

We are seeking a seasoned Full Stack Developer to architect, build, and maintain a comprehensive in-house electronic invoicing platform. This end-to-end responsibility requires expertise across backend and frontend development, database management, and deployment on cloud infrastructure.

Key Responsibilities

Lead the design and development of production-grade software solutions for the e-invoicing platform. Employ best engineering practices to ensure operational reliability and scalability.

Required Expertise and Skills

• Over five years of full stack development experience delivering live applications.
• Proficiency with Python 3.12 and frameworks like FastAPI, complemented by experience in SQLAlchemy and Alembic for ORM and migrations.
• Hands-on frontend development using React coupled with TypeScript.
• Advanced knowledge of PostgreSQL including database migrations, performance optimization techniques such as indexes and query tuning, as well as security at the row level and concurrency control.
• Practical experience working with Temporal workers and workflows to implement workflow automation.
• Mandatory familiarity with Vibe Coding methodologies and Agentic Integrated Development Environment (IDE) tools.
• Strong background in XML technologies including XSD schemas, Schematron constraints, XPath querying, XML canonicalization, and digital signature integration.
• Preferred experience with XAdES digital signatures, Public Key Infrastructure (PKI), X.509 certificates, Certificate Signing Requests (CSR), and use of Key Management System (KMS) for secured signing.
• Competence in containerization using Docker and deployment using AWS cloud services like ECS (Elastic Container Service), RDS (Relational Database Service), S3 (Simple Storage Service), KMS, and Application Load Balancer (ALB).
• Well-versed with Git for version control and GitHub Actions for continuous integration and deployment workflows.