Full Stack Engineer

Vistas Global; Doha; On-site; QAR 120,000 - 200,000; Full time

Job summary

Vistas Global seeks an experienced Full Stack Developer to build an in-house e-invoicing platform. You will own the project end-to-end, implementing Python backend with FastAPI and a React/TypeScript frontend, backed by PostgreSQL.

You will deploy to AWS using ECS, RDS, S3 and KMS, and implement strong XML-based signing, XAdES and PKI practices. Temporal workflows and GitHub Actions will be part of the workflow.

Qualifications

• 5+ years of hands-on Full Stack Development experience delivering production applications.

Responsibilities

• Design, develop, and operate an in-house e-invoicing platform end-to-end.
• Collaborate on backend (Python) and frontend (React/TypeScript) development.
• Implement cloud deployments and security practices on AWS.

Skills

Python backend

FastAPI

SQLAlchemy

Alembic

React

TypeScript

PostgreSQL

Temporal

Agentic IDE

XSD

Schematron

XPath

XML signing

XAdES

PKI

X.509

CSR

KMS signing

Docker

AWS (ECS)

AWS RDS

AWS S3

AWS KMS

AWS ALB

Git

GitHub Actions

Temporal workers/workflows

CI/CD

Tools

Docker

AWS ECS

AWS RDS

AWS S3

AWS KMS

AWS ALB

Git

GitHub Actions

Temporal

XAdES/PKI tooling

Job description

We are looking for an experienced Full Stack Developer to design, develop, and operate an in-house e-invoicing platform end-to-end. The candidate should be strong in Python backend development, React/TypeScript, PostgreSQL, cloud technologies, and modern Agentic IDE / Vibe Coding practices.

Key Requirements

• 5+ years of hands-on Full Stack Development experience delivering production applications.
• Strong expertise in Python 3.12, FastAPI, SQLAlchemy, and Alembic.
• Experience with React and TypeScript for frontend development.
• Strong PostgreSQL knowledge, including migrations, indexes, query optimization, row-level security, and locking.
• Hands-on experience with Temporal workers/workflows.
• Vibe Coding / Agentic IDE experience - Mandatory.
• Strong XML knowledge: XSD, Schematron, XPath, canonicalization, and digital signatures.
• Experience with XAdES, PKI, X.509, CSR, and KMS-backed signing is highly preferred.
• Experience with Docker and AWS services such as ECS, RDS, S3, KMS, and ALB.
• Good knowledge of Git and GitHub Actions.