Referso Jobs

Senior Cybersecurity Engineer

PayPal · Posted Sep 17, 2026

Open

Singapore
Hybrid
Full-time · Senior
5+ years

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Senior Cybersecurity Engineer

PayPal · Posted Sep 17, 2026

Open

Singapore
Hybrid
Full-time · Senior
5+ years

Apply with Referso

Staff Mobile & Product Security Engineer

MrBeast · Posted Apr 28, 2026

Open

San Mateo, California, United States
Full-time · Staff
$205K–$256K per year

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Foundational security hire on the Security team, embedded directly with product and mobile squads to ship features that are secure by design. Will own mobile and product application security, pen testing, and security architecture controls.

Compensation

$205,000 –$256,000 + 15% bonus + equity

Responsibilities

Embed directly with mobile and product squads to threat-model, review, and harden features.
Own the mobile application security program end-to-end: secure mobile SDLC, mobile-specific code review, dependency and supply-chain controls, and developer security tooling.
Own the broader product application security program: secure-by-default patterns, API and backend security review, and paved-road tooling.
Run the pen testing program — hands-on offensive work spanning mobile (static/dynamic analysis, binary/reverse engineering) and web/API.
Architect the security controls and documentation that meet partner security requirements.

Requirements

Nice to have: SOC 2
Nice to have: PCI
Nice to have: AI-native security
Nice to have: Prompt security

Skills

Mobile Security iOS security Android security

Associate Product Security Eng

Trane Technologies · Posted Oct 9, 2026

Open

Bangalore, Karnataka, India
Hybrid
Associate
2–6 years

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Engineer – Cyber Security role within the ETC Product Security team, based in Bangalore, with a hybrid work schedule.

Compensation

We offer competitive compensation and comprehensive benefits and programs.

Responsibilities

Conduct regular security audits and assessments on multiple projects
Prepare and present security reports to management and regulatory bodies
Mentor and support junior security staff
Promote a culture of security awareness throughout the organization
Recommend and implement improvements to enhance the organization's security posture

Requirements

Nice to have: CEH
Nice to have: GPEN
Nice to have: Licensed Penetration tester

Skills

Cyber security Operational Technology domain Network Security system security principles security tools and technologies BurpSuite

Senior Software Engineer (iOS)

Kingfisher · Posted Nov 6, 2026

Open

Krakow, Małopolska, Poland
Hybrid
Full-time · Senior
PLN 20K–PLN 28K per month

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Senior iOS Engineer focused on Swift, SwiftUI, and moving logic into Kotlin Multiplatform (KMP) shared layers.

Compensation

20,000 - 28,000 PLN gross per month on an employment contract

Responsibilities

Lead the design, development and maintenance of scalable, high-performance iOS applications using Swift, SwiftUI and Xcode, following The Composable Architecture (TCA) and a modular Swift Package Manager codebase.
Work hands-on in our Kotlin Multiplatform shared layer — consuming and extending shared Kotlin UseCases, repositories and models exposed to iOS through the KingfisherFoundation framework and helping grow the amount of logic that lives in shared code.
Collaborate with Android and backend engineers to shape the Swift-facing API of the shared KMP layer so it serves both platforms cleanly and help define our long-term multiplatform mobile strategy.
Integrate and maintain our GraphQL (Apollo Kotlin) and REST (Ktor) data layer — including the iOS URLSession/Ktor bridge and normalized caching, and third-party SDKs and platforms.
Champion mobile security (OAuth2 / PKCE, CIAM, Keychain, certificate pinning, jailbreak detection, F5 API protection)

Requirements

Nice to have: Kotlin
Nice to have: Apollo Kotlin
Nice to have: SQLDelight
Nice to have: Koin
Nice to have: UIKit

Senior Cloud Security Architect

Amazon · Posted Nov 6, 2026

Open

Montreal, Quebec, Canada +4 more
On-site
Full-time · Senior
CA$126K–CA$210K per year
7+ years

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Design, implement, and manage secure AWS solutions for customers as part of Amazon Web Services Professional Services.

Locations (5)

Montreal, Quebec, Canada
Calgary, Alberta, Canada
Vancouver, British Columbia, Canada
Toronto, Ontario, Canada
Ottawa, Ontario, Canada

Compensation

CAN, AB, Calgary - 126,000.00 - 210,400.00 CAD annually CAN, BC, Vancouver - 126,000.00 - 210,400.00 CAD annually CAN, ON, Ottawa - 126,000.00 - 210,400.00 CAD annually CAN, ON, Toronto - 126,000.00 - 210,400.00 CAD annually CAN, QC, Montreal - 126,000.00 - 210,400.00 CAD annually

ReactNative Architect

Infosys · Posted Nov 5, 2026

Open

Brentwood, Tennessee, United States
Full-time

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Lead architecture consulting for mobile applications, focusing on React Native solutions, performance, security, and scalability.

Responsibilities

Participate in customer discussions to gather and analyze system requirements
Provide suggestions on solution architecture and support enterprise architecture definition
Identify suitable technologies and tools and perform comparative analysis
Develop integration strategies based on proof of concept validation
Facilitate knowledge transfer and ensure quality standards

Requirements

Bachelor’s degree or foreign equivalent
Nice to have: mobile app based front-end development in native and cross-platform mobile technologies
Nice to have: React Native based cross-platform mobile application development for both iOS and Android
Nice to have: expertise in React Native components, libraries, framework upgrades, routing, SDK, Dev Tools, debugging and native modules
Nice to have: ability to define cross-platform mobile app solution options

Skills

React Native mobile app development cross-platform mobile technologies

Consultant Sécurité Offensive - Pentester F/H

B&W Deloitte GmbH · Posted Feb 20, 2026

Open

Casablanca, Casablanca-Settat, Morocco

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Pentester in the Offensive Security Center of Deloitte Morocco Cyber Center, performing penetration testing, vulnerability assessment, code audit, and cloud security analysis for clients worldwide.

Responsibilities

Identify vulnerabilities through penetration tests on client environments
Dump web database contents, exploit Active Directory directories, root servers linked to specific SI
Analyze source code of applications (PHP, Python, etc.) and underlying components (Apache, SSH, etc.)
Discover attack paths on cloud technologies (EntraID, AWS, etc.) and reverse engineer heavy clients (Java, .NET, C/C++, etc.)
Propose expertise on specific missions such as code audit, exotic component pentest (LLM, terminals, TPE, etc.)

Skills

Windows Linux Mac network security architecture firewall sniffers web security OWASP methodology

Advanced Cyber Sec Archt/Engr

Honeywell · Posted Nov 5, 2026

Open

Bengaluru, Karnataka, India
5+ years

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Responsible for assessing and evaluating the security posture of Honeywell IA Products and partner technologies, delivering security services, and developing testing methodologies.

Responsibilities

Deliver Security Testing across all IA products
Report observations using standardized reporting structure
Work with cross functional teams to develop remediation suggestions
Develop methodologies, determine scoping requirements
Assist in the development of modular, repeatable, effective Security Testing processes

Requirements

Bachelor’s degree in computer science or software engineering, electrical engineering or equivalent experience
Nice to have: CEH
Nice to have: OSCP
Nice to have: OSWE
Nice to have: CCSP

Skills

penetration testing web application security mobile security network security thick client security API security

Staff Information Security Engineer, Product Security

Google · Posted Nov 5, 2026

Open

Singapore, Singapore
On-site
8+ years

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Lead a team of security engineers to scale research, analysis, and remediation efforts for Google’s products and infrastructure.

Responsibilities

Provide technical leadership and mentorship to teammates
Understand and advise others on complex processes and workflows related to product security response and remediation efforts
Foster global collaboration and maintain a high level of operational independence while collaborating with Global Leads in the United States and Zurich
Drive end-to-end development of AI agents and infrastructure to automate root cause analysis, variant analysis, trend analysis, and remediation
Build and maintain a unified vulnerability analysis pipeline and dashboarding system to provide executive-level insights into emerging threats and program ROI

Requirements

Bachelor's degree or equivalent practical experience
Nice to have: building or deploying automated tools
Nice to have: AI agents for security workflows

Skills

security assessments security design reviews threat modeling security engineering

Lead Enterprise Software Engineer

Medtronic · Posted Nov 5, 2026

Open

Nanakramguda, Telangana, India
Senior
12+ years

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Lead Enterprise Software Engineer

Compensation

Medtronic offers a competitive Salary and flexible Benefits Package

Responsibilities

Design, develop, and maintain mobile applications for iOS platforms.
Work with both native (Swift, Objective-C)
iOS development with device communication such as BLE, Bluetooth, Wi-Fi, and NFC
Collaborate with UI/UX designers, product managers, and backend developers to deliver high-quality products.
Write clean, maintainable, and efficient code following best practices.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent experience.
Nice to have: FDA and ISO design control requirements

Skills

Swift Objective-C iOS BLE Bluetooth Wi-Fi NFC

Mobile Security jobs

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