---
title: 'Java Software Engineer (Singapore) at Guardsquare'
canonical: 'https://feeny.ai/job/java-software-engineer-singapore-guardsquare-singapore-cad18c4ybp70'
type: 'job'
last_seen: '2026-09-09'
---

# Java Software Engineer (Singapore) at Guardsquare

- **Company:** Guardsquare
- **Location:** Singapore
- **Posted:** 2026-07-22
- **Last confirmed live:** 2026-09-09
- **Apply:** https://job-boards.greenhouse.io/guardsquare/jobs/8078846

## Job description

Build software that protects billions of Java and Android applications

As Guardsquare expands across Asia-Pacific, we are looking for Java Software Engineers with a passion for Java internals, compiler technology, software engineering, and application security.

You will work on DexGuard and other Java-based products, developing technology that makes Java and Android applications smaller, faster, and significantly harder to reverse engineer and tamper with. Your work will involve improving a complex codebase, researching new code-hardening and optimization techniques, and solving challenging engineering problems where security, performance, compatibility, and developer experience all matter.

As one of our first engineers in Singapore, you will help establish and shape our local R&D presence alongside newly hired engineers and experienced colleagues relocating from our headquarters in Leuven.

Up to 50% of your role will focus on R&D Customer Support. This is not traditional helpdesk support: you will investigate, reproduce, and debug complex technical issues while working closely with customers and internal engineering teams to find robust solutions.

You will report to the local Managing Director for office-related matters and functionally to your R&D Team Lead for technical priorities, guidance, and professional development.

## What You'll Work On

- Develop and improve our Java-based products, including ProGuard, DexGuard, and future Java technologies.
- Research, test, and implement new code-hardening, optimization, and application-processing techniques.
- Work with Java bytecode, compiler technology, build pipelines, and complex application-processing workflows.
- Maintain and continuously improve a large, mature codebase.
- Investigate, reproduce, and debug complex technical issues.
- Help customers successfully integrate and use our software.
- Collaborate with customers and internal R&D teams to solve challenging engineering problems.
- Improve software quality through extensive testing.
- Stay ahead of developments in Java, compiler technology, mobile application security, and reverse engineering.

## What You Bring

- Master's degree in Computer Science or a related field.
- At least 2–3 years of relevant software engineering experience.
- Excellent Java skills.
- Experience working with large or complex codebases.
- Experience with Linux.
- Experience with low-level programming and debugging.
- Strong analytical and problem-solving skills.
- The ability to communicate complex technical topics clearly and collaborate directly with customers.
- An interest in software security and reverse engineering.

## Nice to Have

- Knowledge of compiler technology, Java bytecode, or complex application processing.
- Experience with code obfuscation or optimization techniques.
- Knowledge of information security.
- Experience with reverse engineering and commonly used tools.
- Familiarity with Android and Android build tools such as Gradle and ProGuard.

Why Guardsquare?

This is not standard Java application development.

You will work at the intersection of Java engineering, compiler technology, mobile security, and reverse engineering. You'll solve challenging problems involving Java bytecode, application optimization, code hardening, and build pipelines while helping shape the products, features, and engineering practices you work with.

The technology you develop can quickly make its way into industry-leading Java and Android applications used by some of the world's largest payment providers, banks, and social media companies.

We offer:

- A full-time, office-based position in our new Singapore office.
- Challenging engineering work at the forefront of Java application protection and reverse engineering.
- Real-world problems that will deepen your expertise in Java, compiler technology, and mobile security.
- The opportunity to help build a new R&D team from its early stages.
- An international environment focused on technical ownership, collaboration, and continuous learning.
- The ability to share your ideas and turn them into working solutions.

At Guardsquare, we bring together colleagues from many different backgrounds and nationalities. We value open technical discussion, different perspectives, knowledge sharing, and continuous growth.

Candidates must be legally authorized to work in Singapore at the time of application. We are unable to provide visa or work permit sponsorship for this role.

Ready to build technology that protects billions of Java and Android applications? Join us.

Apply by completing the application form below.

## About Guardsquare

Guardsquare offers the most complete approach to mobile application security on the market, delivering the highest level of protection, with ease. Guardsquare integrates seamlessly across the full development cycle, from mobile app security testing and code hardening to real-time threat detection and API security. Guardsquare provides enhanced mobile application security across the entire development process. More than 1,000 customers worldwide across all major industries rely on Guardsquare to help them identify security risks and protect their mobile applications and SDKs against reverse engineering and tampering in the ever-evolving threat landscape.

Guardsquare is based in Leuven (Belgium) with offices in Ghent (Belgium), Boston (USA) and Munich (Germany).

## About Guardsquare

## Company Overview
- **One-liner**: Guardsquare provides the most complete mobile application security platform, offering testing, code hardening, and real-time threat monitoring for Android and iOS apps.
- **Entity Type**: Private (Series A)
- **Headquarters**: Leuven, Belgium
- **Founded**: 2014
- **Founders**: Heidi Rakels and Eric Lafortune

## Core Business
- **Primary industry/industries**: Mobile Application Security, Cybersecurity, Software Development
- **Target customers**: B2B; enterprise development and security teams across financial services, e-commerce, gaming, and media.
- **Mission or purpose statement**: To make the future of mobile secure by providing cutting-edge protection against reverse engineering, tampering, and security threats.

## Products & Services
- **DexGuard**: Multi-layered, polymorphic obfuscation and Runtime Application Self-Protection (RASP) for native Android and cross-platform apps.
- **iXGuard**: The iOS counterpart to DexGuard, offering multi-layered obfuscation and built-in RASP for native iOS and cross-platform apps.
- **AppSweep**: A mobile application security testing (MAST) product for Android and iOS that helps developers find and fix security issues early in the development lifecycle. Includes a free tier.
- **ThreatCast**: A real-time threat monitoring console that provides visibility into attacks on mobile apps and SDKs post-publication, allowing for adaptive security configurations.
- **ProGuard**: The company's open-source optimizer and shrinker for Java and Kotlin applications, with a community of over one million developers.

## Market Standing
- **Valuation/Market Cap**: Not disclosed.
- **Key Metric**: Total Funding of ~$30.1M USD; Annual Revenue of ~€13.2M [linkedin.com](https://www.linkedin.com/company/guardsquare).
- **Notable Investors/Partners**: Battery Ventures (led Series A in 2019), Verdane (led a venture round in 2025) [linkedin.com](https://www.linkedin.com/company/guardsquare).
- **Growth Signals**: Over 1,000 customers worldwide; operates in 12 countries; acquired Breakpoint's App-Ray (MAST engine) and Verimatrix's Extended Threat Defense (XTD) technology; recently introduced AppSweep Enterprise and a guided workflow for rapid app protection [guardsquare.com](https://www.guardsquare.com/about-us).

## Competitive Advantages
- **Multi-layered, polymorphic protection**: Security defenses automatically change with each build, forcing attackers to start over.
- **Combined testing and hardening**: Offers a unique, integrated workflow from security testing in development to runtime protection in production.
- **Open-source roots**: Founded on the widely adopted ProGuard technology, giving the company deep credibility and a massive developer community.
- **Automated RASP injection**: Automatically injects runtime self-protection checks into random code locations at a high volume, providing defense in depth without manual effort.

## Strategic Focus
- **Simplifying security for developers**: The "guided workflow" aims to make enterprise-grade mobile app protection achievable in less than a day, closing the cybersecurity skills gap.
- **Scaling security testing**: AppSweep Enterprise targets large development teams needing to manage mobile app security testing across their entire organization.
- **Expanding platform capabilities**: Continued investment in real-time threat monitoring (ThreatCast) and cross-platform support (e.g., Unity for mobile games).

## Why Work Here
- **Cutting-edge technology**: Work on the frontline of the mobile security revolution, protecting billions of app installs against sophisticated threats.
- **International and dynamic team**: A tightly knit, international team operating in a rapidly evolving environment [guardsquare.com](https://www.guardsquare.com/careers).
- **Fast-growing company**: Mobile security is an essential service, and the company is growing quickly to meet demand, offering ample opportunities for ambitious employees.
- **Remote-friendly**: Some roles, such as DevRel Evangelist/Advocate, are listed as remote [guardsquare.com](https://www.guardsquare.com/careers).
- **Locations**: Major offices in Leuven (BE), Gent (BE), Boston (US), and München (DE) [guardsquare.com](https://www.guardsquare.com/careers).

## Sources
1. [Guardsquare Official Website](https://www.guardsquare.com/)
2. [Guardsquare About Us](https://www.guardsquare.com/about-us)
3. [Guardsquare Careers](https://www.guardsquare.com/careers)
4. [Guardsquare LinkedIn](https://www.linkedin.com/company/guardsquare)
5. [Guardsquare Greenhouse Jobs](https://boards.greenhouse.io/guardsquare)

## Other roles at Guardsquare

- [Java R&D Team Lead - Munich](https://feeny.ai/job/java-r-d-team-lead-munich-guardsquare-munchen-m8xr611txw9d) — München, DE
- [Director of Engineering](https://feeny.ai/job/director-of-engineering-guardsquare-leuven-y75hb2b8bkq7) — Leuven, Belgium
- [Compiler Engineer C++/LLVM (Singapore)](https://feeny.ai/job/compiler-engineer-c-llvm-singapore-guardsquare-singapore-1jadwdh9bhga) — Singapore
- [Senior Compiler Engineer C++/LLVM - Leuven](https://feeny.ai/job/senior-compiler-engineer-c-llvm-leuven-guardsquare-leuven-1spk87vd4xn4) — Leuven, Belgium
- [Field Marketing Manager - APAC](https://feeny.ai/job/field-marketing-manager-apac-guardsquare-singapore-rt8pqtds6je4) — Singapore
- [Solution Engineer - APAC (Singapore)](https://feeny.ai/job/solution-engineer-apac-singapore-guardsquare-singapore-xfaxy39njm0v) — Singapore
- [Sales Executive - APAC (Singapore)](https://feeny.ai/job/sales-executive-apac-singapore-guardsquare-singapore-cacwvq5v62n6) — Singapore
- [Software Engineering Team Lead](https://feeny.ai/job/software-engineering-team-lead-guardsquare-leuven-za7q8hmvkbc0) — Leuven, Belgium
- [R&D Team Lead](https://feeny.ai/job/r-d-team-lead-guardsquare-leuven-7kw2dkz4h1g8) — Leuven, Belgium
- [Java Team Lead](https://feeny.ai/job/java-team-lead-guardsquare-leuven-ak4kd8yra448) — Leuven, Belgium