New opportunity

Expert Algorithm Engineer, (Multimodal AI & Trust Intelligence), Marketplace Intelligence & Data

Shopee · Singapore

About this role

Shopee seeks an Expert Algorithm Engineer in its Marketplace Intelligence and Data team in Singapore. The role leads algorithm development for multimodal AI and trust intelligence, taking solutions from research through production and aligning technical strategy with business impact.

Responsibilities

  • Design and evolve algorithms for AI-generated content detection and media forensics; face intelligence, liveness detection and deepfake defense; document understanding and fraud detection; and multimodal reasoning and AI agents.
  • Own end-to-end algorithmic solutions and translate research into production systems. Set technical direction for multimodal and vision-language models, trustworthy AI and biometric security, and generative model detection and provenance analysis.
  • Mentor senior engineers, provide technical judgment on major algorithmic decisions, and partner with product and engineering teams.

Requirements

  • Master’s degree or PhD in Computer Science, AI or a related field.
  • 5+ years of experience building production machine learning systems, or equivalent impact; recognized technical depth in related fields; and strong hands-on expertise with modern deep learning stacks.
  • A record of leading large-scale systems from concept to production, sound judgment in ambiguous situations, ownership, long-term thinking and a commitment to reliable, high-impact AI products.

Preferred, not required: publications in top-tier computer vision, multimodal or AI conferences and journals.

For full details about this role, click “Apply on company site” to view the employer’s original posting.

Skills for this role

Multimodal AIComputer VisionVision-Language ModelsDeep LearningMachine LearningAIGC DetectionMedia ForensicsFace IntelligenceLiveness DetectionDeepfake DetectionDocument UnderstandingFraud DetectionMultimodal ReasoningAI AgentsBiometric SecurityGenerative Model DetectionProvenance AnalysisProduction ML SystemsTechnical Leadership

Your skill match

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YOUR NEXT STEP

Get interview-ready for this role

A focused preparation guide, built around this job’s responsibilities and requirements.

✦ AI-generated guide
Preparation suggestions, not the employer’s actual interview questions. Always check the original posting for current requirements.
01

Understand the role

What matters most

  • Lead trust-intelligence algorithms

    The role leads algorithms for AIGC detection and media forensics, face intelligence and liveness, deepfake defense, and document understanding and fraud detection. Prepare to explain how you would evaluate and evolve an algorithm in one of these areas.

  • Set multimodal technical direction

    The posting calls for technical direction in multimodal and vision-language models, trustworthy AI and biometric security, and generative-model detection and provenance analysis. Prepare to justify model and evaluation choices against alternative approaches.

  • Take research into production

    Shopee asks this role to own end-to-end algorithmic solutions and drive research-to-production translation; it also seeks experience leading large-scale systems from concept to production. Prepare a concrete account of decisions made across experimentation, deployment and ongoing reliability.

  • Exercise senior technical judgment

    The role mentors senior engineers, serves as a technical bar-raiser for major algorithmic decisions, and partners with product and engineering to align strategy with business impact. Prepare examples of resolving ambiguous technical choices and explaining their business rationale.

Likely challenges to think through

  • Balance detection errors

    Preparation hypothesis, not a stated Shopee problem: trust and fraud detection may require balancing missed abuse against false alarms affecting legitimate activity. Prepare to discuss threshold selection, evaluation across relevant cases, and how you would make that trade-off explicit.

  • Preserve reliability beyond research results

    Preparation hypothesis: an approach that performs well experimentally may be harder to operate reliably at production scale. Prepare to explain how you would weigh model performance against operational complexity and detect when performance changes after release.

  • Choose where to invest technical effort

    Preparation hypothesis: the breadth of listed areas may create competing priorities for algorithm development. Prepare to explain how you would compare expected business impact, technical uncertainty and engineering effort with product and engineering partners.

03

Practice your answers

Technical practice

How would you design an AIGC detection algorithm that remains useful as generators change?

What to coverPreparation suggestion: explain how you would assemble representative evaluation data and test generalization to new generators and transformations. Discuss false positives, false negatives, and when a detector should abstain rather than make a confident claim.

How would you combine media forensics with generative-content provenance analysis?

What to coverPreparation suggestion: distinguish evidence in the media itself from available provenance signals, and explain how you would handle missing or conflicting evidence. Discuss what conclusions the system could support without overstating certainty.

How would you evaluate a face-liveness system against attempts to impersonate a real person?

What to coverPreparation suggestion: cover representative genuine and attack cases, error rates, and robustness across capture conditions. Explain the trade-off between blocking attacks and rejecting legitimate users.

What technical approach would you take to deepfake defense beyond detecting a single known attack type?

What to coverPreparation suggestion: describe how you would test across manipulation methods and changing media quality. Address failure analysis and the limits of relying on artifacts that may disappear as generation improves.

How would you connect document understanding to fraud detection?

What to coverPreparation suggestion: describe extracting and checking relevant document content before making a fraud assessment. Discuss uncertain or degraded inputs and the trade-off between detecting suspicious cases and incorrectly flagging valid documents.

How would you set technical direction for a multimodal or vision-language model?

What to coverPreparation suggestion: explain how you would compare candidate approaches on the role’s target tasks, including reasoning quality and robustness across modalities. Relate model performance to production cost and the reliability needed for a trust-related application.

How would you evaluate a multimodal AI agent before using its outputs in a trust workflow?

What to coverPreparation suggestion: discuss how you would test whether its reasoning is grounded in the supplied inputs and whether it handles uncertainty. Explain where constrained actions or human review might be preferable to autonomous decisions.

What makes a biometric-security or trustworthy-AI algorithm dependable in practice?

What to coverPreparation suggestion: consider adversarial misuse, variation in input quality, and error rates across relevant conditions. Explain how you would assess security gains against legitimate-user friction without assuming any particular company policy.

How would you take a promising research algorithm through production?

What to coverPreparation suggestion: describe stages from reproducible evaluation and failure analysis to integration, monitoring, and iteration. Address trade-offs among quality, latency, operational complexity, and maintainability.

How would you make a major algorithmic decision when no candidate solution clearly wins?

What to coverPreparation suggestion: define the evidence and evaluation criteria you would use, including reliability and business impact. Explain how you would document uncertainty, choose a reversible next step where possible, and identify what results would change your decision.

Behavioural practice

Tell me about a time you led an ML system from concept to production.

What to coverPreparation suggestion: use situation, action, and result to show the scope of your ownership and the decisions you made along the way. Explain the outcome with evidence you can substantiate, including any reliability lessons.

Describe a time you mentored an experienced engineer through a difficult technical decision.

What to coverPreparation suggestion: use situation, action, and result to show how you challenged or supported their reasoning without simply taking over. Describe what changed in the decision or the engineer’s approach.

Tell me about a time you aligned an algorithm strategy with product and engineering partners.

What to coverPreparation suggestion: use situation, action, and result to explain differing priorities and how you reached a workable decision. Connect your technical choices to the impact the partners needed.

Describe a time you had to exercise technical judgment with incomplete evidence.

What to coverPreparation suggestion: use situation, action, and result to explain the uncertainty, the alternatives you considered, and why you chose a path. Include what you learned when more evidence became available.

Tell me about a time you prioritized long-term reliability over a short-term improvement.

What to coverPreparation suggestion: use situation, action, and result to explain the trade-off and how you made it visible to others. Describe the eventual effect on the system or the team without claiming an outcome you cannot verify.

02

Sharpen your knowledge

Topics to prepare

  • AIGC detection, forensics and provenance

    The role leads AIGC detection and media forensics and sets direction for generative-model detection and provenance analysis. Suggested exercise: compare detection signals with provenance evidence, then explain how you would handle conflicting evidence.

  • Face intelligence and biometric security

    The posting names face intelligence, liveness detection, deepfake defense and biometric security. Suggested exercise: sketch a threat model and explain how a liveness approach could fail under realistic attacks.

  • Document understanding and fraud detection

    Document understanding and fraud detection are explicit algorithm areas. Suggested exercise: map a document-processing pipeline and identify where extraction errors could lead to incorrect fraud decisions.

  • Multimodal and vision-language reasoning

    The role covers multimodal reasoning, AI agents and technical direction for vision-language models. Suggested exercise: explain a design for reasoning over image and text inputs, including how to recognize unsupported conclusions.

  • Research-to-production judgment

    The role owns end-to-end algorithms, translates research into production and calls for judgment in ambiguous situations. Suggested exercise: compare two candidate approaches and justify a choice using reliability, scale and business impact.

Skills to revise

  • Design a targeted evaluation

    Suggested exercise: draft an evaluation plan for AIGC or deepfake detection, including representative failure cases and trade-offs between missed detections and false alarms. This practices the technical judgment needed for the posting’s trust-intelligence algorithms.

  • Work through a deep-learning implementation

    Suggested exercise: outline how you would build, debug and improve one multimodal model experiment, from input preparation to error analysis. The posting explicitly requires strong hands-on expertise with modern deep-learning stacks, but names no particular tool.

  • Plan production ownership

    Suggested exercise: turn a promising algorithm into a staged production plan covering validation, monitoring and response to degraded performance. This relates to the stated requirement to lead large-scale ML systems from concept to production.

  • Lead an algorithm decision review

    Suggested exercise: prepare a short decision memo comparing approaches, then practice explaining the trade-offs to senior engineers and product partners. The posting explicitly calls for mentoring, technical direction and alignment with business impact.

04

Your preparation checklist

  • Build a requirements evidence sheet

    Map the stated Master’s/PhD or related-field requirement, 5+ years of production ML experience or equivalent impact, deep-learning expertise, and large-scale system leadership to specific evidence you could discuss. Treat publications as a stated preference, not a requirement.

  • Prepare an end-to-end system walkthrough

    Choose a relevant production ML system and outline your decisions from problem definition and research through deployment, reliability, and subsequent improvements. Identify your own technical contributions and the scale involved.

  • Rehearse a trust-intelligence design exercise

    Sketch a possible approach to one advertised area, such as AIGC detection and media forensics or liveness and deepfake defense. Include data assumptions, model choices, evaluation, failure modes, and a path to production; this is practice, not a stated interview exercise.

  • Explain a multimodal technical direction

    Prepare a short comparison of approaches to vision-language models, document understanding, or multimodal reasoning and AI agents. Show how you would decide what to develop, validate, and maintain under uncertainty.

  • Document a leadership decision

    Write up one example of setting technical direction or resolving an ambiguous algorithmic trade-off. Be ready to explain how you worked with product and engineering partners, mentored senior engineers, and connected the decision to business impact.

  • Draft questions for the team

    Ask which advertised trust-intelligence problems are most immediate, how the team evaluates production reliability and business impact, and where this expert individual-contributor role has decision-making authority.

AI-generated from the job information · Prepared Sep 30, 2026 (UTC)Useful preparation, not a guarantee of eligibility or an offer.

Availability last checked: 4 Nov 2026. Status can change after a check; confirm on the employer’s website. Report an issue · Our checking policy

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