Principal Ruby on Rails Engineer

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Senior Mobile Security Engineer (Forensics)

Ho Chi Minh - Viet Nam

Product

Examine and interpret large-scale datasets and fraudulent activities to identify patterns, clusters, and evolving fraudulent behavior, including understanding the methods and processes used by attackers. Collaborate with the mobile development team to create and integrate secure mobile SDK components for accurate collection of forensic data, aiding in the identification of location spoofing, emulator abuse, rooted/jailbroken environments, and other forms of environment manipulation. Lead and conduct in-depth technical research on emerging mobile fraud and evasion techniques, and translate the findings into practical forensic indicators. Establish and improve end-to-end incident response capabilities throughout the system, working with Data Science and ML teams to convert forensic insights into technical features, rules, and detection logic. Offer technical advice and mentorship to junior engineers on effective practices in mobile security, forensics, and data analysis.

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AI/ML Engineer

Ho Chi Minh - Viet Nam

Offshore

• Machine Learning
• AI
• Data Engineering

Develop and optimize ML pipelines for both real-time and batch inference, applying modern MLOps best practices. Collaborate cross-functionally with data engineers and software developers to seamlessly integrate models into our client's banking platform, ensuring reliability, monitoring, and version control. Research, prototype, and productionize models in critical domains such as credit scoring, fraud detection, transaction classification, personalization, and conversational AI. Implement robust evaluation frameworks, including A/B testing and drift detection, to maintain accuracy and stability over time. Contribute to internal libraries and frameworks that standardize ML workflows and accelerate development across teams. Explore emerging techniques in LLMs, Generative AI, and reinforcement learning, assessing their applicability to our client's ecosystem. Mentor junior engineers and partner closely with product and infrastructure teams to ensure models are production-ready and scalable globally.

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Senior Software Engineer (PHP/ Golang)

Ho Chi Minh - Viet Nam

Product

• PHP
• Golang

Analyzing requirements, converting them into technical specifications, and estimating implementation cost. Making significant individual contributions, actively writing high-quality, maintainable, and scalable code. Participating in shaping the technical roadmap by identifying and prioritizing issues, gaps, and technical debt in the product. Researching and evaluating new tools, technologies, and frameworks to enhance the product and improve development efficiency. Ensuring the product is technically prepared for future challenges, with a focus on security, maintainability, and scalability. Encouraging a culture of ownership, empowering engineers to provide product development suggestions. Providing technical input and insights to Product Managers regarding tradeoffs between scope, engineering capacity, and time constraints. Advocating best practices and actively participating in code and design document reviews to ensure high quality. Mentoring and supporting other engineers to foster their growth and development. Collaborating with other technical teams to maintain effective communication and avoid duplicate efforts or incompatible solutions.

Negotiation