Senior Full Stack Engineer — React + Kotlin, Remote

FullStack; Peru (IL); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

100% remote

Competitive pay

Career growth

Education opportunities

Job summary

FullStack is seeking a Senior Full Stack Engineer for remote, project-based work with U.S. clients. You will integrate directly into the client team and collaborate daily with designers and engineers.

The role demands 5+ years of software experience, strong React frontend and Kotlin backend skills, JavaScript/TypeScript, RESTful APIs, SQL, Git, and solid design patterns. A proactive, ownership-driven mindset and Agile experience are a plus.

Qualifications

• 5+ years of professional software engineering experience.
• Advanced English is required.
• Four-year college degree is required.
• Strong experience building frontend applications with React.
• Professional experience developing backend services using Kotlin.
• Experience with JavaScript and TypeScript.
• Strong understanding of HTML5, CSS3, and modern frontend development.
• Experience consuming and developing RESTful APIs.
• Knowledge of SQL and database design principles.
• Experience with Git and collaborative version control workflows.
• Understanding of object-oriented programming and software design patterns.
• Familiarity with microservices architecture.
• Exposure to cloud platforms such as AWS, GCP, or Azure.
• Knowledge of CI/CD pipelines.
• Experience developing backend applications using Java, including familiarity with the Spring Framework or Spring Boot, is a plus.
• Ability to work through new and difficult issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of applications.
• Forensic attention to detail.
• A positive mindset and a can-do attitude.
• Experience working on Agile / Scrum teams.
• Meaningful experience working on large, complex systems.
• Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon.
• Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them.

Responsibilities

• Integrate directly into the client's team and collaborate daily with designers and engineers.
• Work with U.S. clients on remote projects and deliver consistently across the development lifecycle.

Skills

5+ yrs exp

Advanced English

Bachelor's degree

React

Kotlin

JavaScript

TypeScript

HTML5

CSS3

REST APIs

SQL

Git

OOP/design patterns

Microservices

AWS/GCP/Azure

CI/CD

Spring

Agile/Scrum

Systems design

Ownership

Education

Bachelor's degree

Tools

Spring Framework

Job description

FullStack is seeking a Senior Full Stack Engineer for remote, project-based work with U.S. clients. You will integrate directly into the client team and collaborate daily with designers and engineers.

The role demands 5+ years of software experience, strong React frontend and Kotlin backend skills, JavaScript/TypeScript, RESTful APIs, SQL, Git, and solid design patterns. A proactive, ownership-driven mindset and Agile experience are a plus.