Senior Full-Stack Engineer — Go/Node + React, Remote

THE VAULT; Województwo mazowieckie; Remote; PLN 396,000 - 659,000; Full time

Benefits offered by this job

Fully remote position

Annual performance bonus

Paid time off

Job summary

The Vault by Tría Finance is seeking a Senior Full-Stack Engineer to own features from domain modeling in Go or Node.js to a crisp React UI. You will build features end-to-end across back and frontend, apply AI-assisted development daily, and design robust backend services with DDD patterns.

Responsibilities include data modeling in PostgreSQL and MongoDB, REST APIs and admin UIs, while upholding security, observability, and test-driven development.

Qualifications

• 7+ years building production systems with Go and/or the MERN stack.
• Strong React experience and modern frontend development.
• Hands-on with DDD and domain modeling to keep boundaries clean.
• Deep PostgreSQL and MongoDB knowledge: indexing, migrations, design.

Responsibilities

• Build end-to-end features across Go/Node.js backends and React frontend.
• Apply AI-assisted development with verification to keep code clean.
• Design backend services using DDD, bounded contexts, and domain events.
• Implement data models/migrations in PostgreSQL and MongoDB.
• Develop REST APIs and webhooks; craft React dashboards and admin UIs.
• Ensure observability with logging, metrics, tracing and robust errors.
• Contribute to security: RBAC, least privilege, audit trails.
• Own quality: unit/integration tests, contract tests, CI pipelines.

Skills

Go

MERN stack

React

API design

DDD

PostgreSQL

MongoDB

Testing

AI coding tools

Tools

GORM

Mongoose

Express

Docker

Kubernetes

GitHub Actions

Job description

The Vault by Tría Finance is seeking a Senior Full-Stack Engineer to own features from domain modeling in Go or Node.js to a crisp React UI. You will build features end-to-end across back and frontend, apply AI-assisted development daily, and design robust backend services with DDD patterns.

Responsibilities include data modeling in PostgreSQL and MongoDB, REST APIs and admin UIs, while upholding security, observability, and test-driven development.