Senior Software Engineer (Android & Full-Stack Web)

Newtone Consulting; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Newtone Consulting is seeking a Senior Software Engineer with strong experience in native Android and full-stack web development. You will design, develop, and maintain secure, scalable applications across mobile and web platforms, collaborating with product, design, and infrastructure teams.

Key responsibilities include building native Android apps with Kotlin/Java, developing high-performance web applications, and integrating RESTful APIs with secure data storage.

Qualifications

• 3–5+ years of software engineering experience with proven leadership.
• Hands-on Android SDK, Kotlin/Java, MVVM and SQLite.
• Proficient in JavaScript/TypeScript, React/Next.js, .NET and Java.
• Experience building REST APIs and integrating mobile and web apps.
• Strong SQL database knowledge (MS SQL Server preferred).
• Familiar with cloud/hybrid environments, CI/CD, and security.
• Good UI/UX sense and testing practices.
• Strong problem-solving and agile collaboration.

Responsibilities

• Design, develop, and maintain native Android applications using Kotlin/Java.
• Build and enhance responsive, high-performance web applications.
• Develop and integrate REST APIs, databases, and authentication services.
• Ensure performance, security, scalability, and code quality.
• Implement automated testing, CI/CD pipelines, and deployment processes.
• Lead technical design discussions, code reviews, and mentor junior developers.
• Collaborate with cross-functional teams across the full SDLC.

Skills

Android SDK

Kotlin/Java

MVVM

SQLite

REST APIs

SQL databases

UI/UX

Agile teamwork

Testing practices

Cloud/CI/CD

Tools

JavaScript/TypeScript

React/Next.js

.NET

Java

Job description

We are looking for a Senior Software Engineer with strong experience in native Android and full-stack web development. You will design, develop, and maintain secure, scalable applications across mobile and web platforms, working closely with product, design, and infrastructure teams.

Key Responsibilities

• Design, develop, and maintain native Android applications using Kotlin/Java, including offline capabilities and cloud synchronization.
• Build and enhance responsive, high-performance web applications.
• Develop and integrate RESTful APIs, databases, and authentication services.
• Ensure application performance, security, scalability, and code quality.
• Implement automated testing, CI/CD pipelines, and deployment processes.
• Lead technical design discussions, conduct code reviews, and mentor junior developers.
• Collaborate with cross-functional teams throughout the full SDLC.

Requirements

• 3–5+ years of software engineering experience, with proven technical leadership experience.
• Strong hands-on experience in Android SDK, Kotlin/Java, MVVM, SQLite, and offline synchronization.
• Proficiency in JavaScript/TypeScript, React/Next.js, .NET, Java, or similar web technologies.
• Experience developing REST APIs and integrating mobile and web applications.
• Strong knowledge of SQL databases, preferably Microsoft SQL Server.
• Familiarity with cloud/hybrid environments, CI/CD, and application security.
• Good understanding of UI/UX principles and software testing practices.
• Strong problem-solving, communication, and Agile teamwork skills.