Full-Stack Engineer – Kotlin, TypeScript, React

Software Mind

. Maintain an existing client application after its planned retirement was postponed .

Posted 9/21/2026full-timeRemote • RomaniaSeniorLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive full-stack development expertise with a strong emphasis on backend technologies such as Kotlin and Gradle, alongside frontend skills in TypeScript and React. Proficient in unit testing and maintaining legacy codebases while collaborating effectively with engineering teams.

Highest-signal resume keywords

Full-Stack DevelopmentKotlinGradleTypeScriptReact

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Hard Skills

Full-Stack DevelopmentUnit TestingDependency UpgradesFramework Version MigrationsLegacy Codebase Management

Soft Skills

Strong English Communication SkillsAbility to Work IndependentlyCollaboration

Tools & Technologies

CI/CD PipelinesDevOps Practices

Certifications & Qualifications

Bachelor’s Degree in Computer ScienceBachelor’s Degree in Software EngineeringBachelor’s Degree in Information Systems

Industry Keywords

End-of-Life ApplicationsLegacy Modernization ProjectsAgile Teams

Tech Stack

Tools & technologies

GradleKotlinReactTypeScript

About the role

Key responsibilities & impact

Maintain an existing client application after its planned retirement was postponed
Update and upgrade outdated libraries, dependencies, and frameworks to keep the application stable and secure
Write and expand unit tests across backend and frontend components
Validate application functionality after upgrades through thorough testing
Identify and resolve issues introduced by dependency or framework changes
Collaborate with the client's engineering team to align on priorities and progress
Work approximately evenly between backend and frontend, with a slightly greater backend emphasis

Requirements

What you’ll need

8+ years of full-stack development experience
Strong English communication skills (B2 minimum) for collaboration with the client’s team
Strong backend experience with Kotlin and Gradle
Strong frontend experience with TypeScript and React
Experience with dependency upgrades and framework version migrations
Solid understanding of unit testing, with experience writing and maintaining tests
Experience working with legacy codebases and the ability to ramp up quickly
Ability to work independently and take ownership of assigned work
Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related technical field
Availability to commit to a full-time, three-month engagement
Nice to have: Experience supporting end-of-life (EOL) applications or legacy modernization projects
Nice to have: Familiarity with CI/CD pipelines and DevOps practices
Nice to have: Experience working in small, agile teams

Benefits

Comp & perks

Flexible schedules and authentic work-life balance
Opportunities for continuing education
Payment in US Dollars
Laptop Provision
Excellent work environment certified by Great Place To Work