# Senior Fullstack Developer

**Company:** Spyrosoft
**Department:** Software Delivery
**Role:** Software Engineer
**Location:** Buenos Aires (AR)
**Remote status:** Fully Remote
**Skills:** JavaScript, NodeJS, TypeScript
**Experience:** Senior
**Area:** Fullstack

#### **About the Role:**

We are seeking an experienced **Senior Fullstack Developer** to join a project for one of the largest foundations in the field of pre-school education in the US. You will play a key role in building a **brand-new platform** from the ground up, working closely with an international team.

#### **Responsibilities:**

- Build and customize Shopify-based frontend solutions using **JavaScript**.

- Develop backend services using **TypeScript** in a serverless architecture on **AWS**.

- Implement and maintain APIs using **AWS AppSync (GraphQL)** and **API Gateway (REST)**.

- Design and manage workflow orchestration using **AWS Step Functions**.

- Work with AWS services such as **Lambda, DynamoDB, S3** , and Infrastructure as Code using **AWS CDK**.

- Collaborate closely with a **US-based product and engineering team** , ensuring smooth communication and delivery.

- Participate in architectural decisions, code reviews, and technical discussions.

- Ensure high-quality code, performance, security, and scalability of the platform.

#### **Requirements:**

- Strong hands-on experience with **vanilla JavaScript** and **Typescript.**

- Backend experience with **Node.js** and **AWS serverless** stack (Lambda, AppSync/GraphQL, API Gateway, DynamoDB, S3, CDK).

- Good understanding of **REST and GraphQL APIs**.

- **English at C1 level**

#### **Nice to have:**

- Experience in building and customizing Shopify-based frontend solutions using JavaScript **.**

- Auth0 experience

#### **Additional Information:**

- You will collaborate closely with a US-based team. Availability for overlap with US Pacific Time working hours (10:00–14:00 PST).

- Ability to provide a no-criminal-record certificate

[Apply for this position](https://careers.spyro-soft.com/jobs/8274790-senior-fullstack-developer/applications/new)