Total 8 job vacancies by Duotech Pte. Ltd.

About the Role

We are looking for a Streaming Data Engineer to design and build scalable real-time data pipelines and streaming data platforms. This role focuses on building high-throughput, low-latency data systems capable of processing large-scale event streams and enabling real-time analytics.

Key Responsibilities

1. Design and develop real-time streaming data pipelines

2. Build event ingestion systems using Kafka or similar messaging systems

3. Implement stream processing jobs using Flink / Spark Streaming

4. Develop scalable stream processing jobs

5. Build and optimize real-time analytical databases

6. Build and maintain data pipelines supporting both batch and streaming workloads

7. Support real-time dashboards and data APIs

8. Implement monitoring and alerting for streaming pipelines

9. Work closely with Data Scientists, Data Analysts, Backend Engineers, and Platform Engineers

What We’re Looking For

1. 3–6 years of experience in Data Engineering / Backend Engineering

2. Experience with real-time analytical databases (Starrocks / Clickhouse / Doris)

3. Experience with streaming data technologies (building distributed data systems)

4. Proficiency in Python / Java / Scala / SQL

5. Apache Kafka / Apache Flink / Spark Streaming

What We Offer

1. A collaborative and inclusive work environment.

2. Opportunities for professional growth and development.

3. The chance to play a pivotal role in shaping the future of our organization.

About the Role

We are looking for a reliable, professional, and family-oriented Personal Driver to support a private household. This role serves as the primary driver for the Principal and family, ensuring safe, punctual, and comfortable transportation for both business and personal commitments. You will play an important role in supporting the family’s daily logistics, requiring a high degree of professionalism, discretion, flexibility, and trustworthiness.

Key Responsibilities

• Principal Transportation: Provide daily chauffeuring services for the Principal, including transportation to and from the office, business meetings, appointments, and other professional engagements.
• Family Transportation: Support the transportation needs of the Principal’s family, including school runs, enrichment classes, appointments, social activities, and other family-related travel requirements.
• Family Logistics & Errands: Assist with household transportation needs, including grocery runs, collection of items, and other ad hoc errands as required.
• Vehicle Stewardship: Take full ownership of the vehicle’s upkeep, including regular car washes, refueling/charging, and coordinating routine maintenance and servicing appointments.
• Schedule Management & Readiness: Proactively plan routes, monitor traffic conditions, and maintain flexibility to support changes in the Principal’s schedule while ensuring timely arrivals and departures.
• Safety & Professionalism: Maintain a clean, smoke-free vehicle environment and uphold the highest standards of road safety, confidentiality, and discretion at all times.

Qualifications & Requirements

• Experience: Proven track record as a Personal or Private Driver supporting senior executives, business owners, or private families. Experience handling Electric Vehicles (EVs), large MPVs (e.g., Toyota Alphard), and luxury continental cars is highly advantageous.
• Driving Excellence: An exemplary driving record with no demerit points. Possession of a Private Hire Driver's Vocational Licence (PDVL) is a significant bonus and preferred.
• Language Proficiency: Bilingual proficiency in English and Mandarin is required to facilitate clear communication and coordination with Mandarin-speaking family members and household staff.
• Physical Fitness & Safety: Must be physically fit to assist with carrying groceries, luggage, and household items where required. The role requires maintaining high levels of alertness for extended periods and a commitment to safe driving practices.
• Health & Screening: Due to the nature of the role and to ensure the safety and security of all passengers, the successful driver may be asked to undergo a pre-employment medical examination and comprehensive background and reference checks.
• Eligibility: This role is based in Singapore; candidates must have the legal right to work in Singapore.

Working Arrangement & Benefits

• Package: Competitive base salary + 13th Month (AWS) and performance-based bonus. Salary will be commensurate with experience and is inclusive of the specified weekend and public holiday support.
• Working Hours: Six days a week, Monday to Friday, and Sunday; with work starting at 7:30am. Working hours will be aligned to the Principal’s business commitments and the family’s daily schedules.
• Public Holiday Support: As the role supports both the Principal’s professional commitments and family activities, occasional support on Public Holidays (excluding Chinese New Year) may be required.
• "Give-and-Take" Philosophy: In recognition of overtime work and Public Holiday support, the driver may enjoy extended paid rest periods when the family is travelling overseas (subject to operational requirements), reflecting a mutual spirit of flexibility and trust.
• Vehicle Usage: As part of the working arrangement, the driver may take the vehicle home on designated days, providing added convenience while ensuring the vehicle is ready to support daily transportation needs.

Role Overview

We are hiring a senior AI Strategist to support thetransformation of Operations and Customer Service functions,

including Client Support, KYC/onboarding, payments, RiskOperations, and Back Office processes

The role focuses on identifying high-impact opportunitieswhere AI can improve service quality, response efficiency, client satisfaction,and operation scalability. The successful candidate will work closely internalAI teams and external vendors to deliver practical, scalable solutions thatenhance both client experience and internal efficiency.

Key Responsibilities

Define and drive AI initiatives across Operations &Customer Service, aligned with business and service excellence goals

• Identify and prioritize use cases across:
• Client support automation and resolution efficiency
• KYC, onboarding, and verification process
• Payment operations and transaction monitoring
• Complaint handling and service recovery
• Internal workflow automation and productivity

Translate business needs into structured execution plans,including:

• Use case definition
• Solution design (in collaboration with AI team)
• Vendor evaluation and selection
• Implementation roadmap

Work as a subject matter expert, taking full ownership ofexecution and delivery with minimal supervision

Work closely with internal stakeholders including AI, data,compliance, risk, product, and engineering teams

Manage external AI vendors and service provider, includingperformance tracking and delivery quality

Oversee full lifecycle delivery from concept throughdeployment and continuous optimization

Drive adoption of AI tools and workflows with customerservice and Operations teams

Establish frameworks for knowledge management, processstandardization, and service automation

Required Experience

3-5 years of hands-on experience in AI development,

Background in one or more of the following

• Customer Service / Client Support
• Operations / Back Office
• KYC / Onboarding / Compliance Operations
• Payments / Transaction Operations

Demonstrated experience in: Service quality improvement /Process optimization and operational efficiency

Strong understanding of:

• Client service workflows in brokerage environments
• Operational risks, compliance requirement and client life cycle processes
• Practical experience using AI tools to improve service delivery, automation, or operational workflows
• Ability to work across business and technical teams and drove implementation through to completion

About the Role

We are looking for a reliable, professional, and family-oriented Personal Driver to support a private household. This role serves as the primary driver for the Principal and family, ensuring safe, punctual, and comfortable transportation for both business and personal commitments. You will play an important role in supporting the family’s daily logistics, requiring a high degree of professionalism, discretion, flexibility, and trustworthiness.

Key Responsibilities

• Principal Transportation: Provide daily chauffeuring services for the Principal, including transportation to and from the office, business meetings, appointments, and other professional engagements.
• Family Transportation: Support the transportation needs of the Principal’s family, including school runs, enrichment classes, appointments, social activities, and other family-related travel requirements.
• Family Logistics & Errands: Assist with household transportation needs, including grocery runs, collection of items, and other ad hoc errands as required.
• Vehicle Stewardship: Take full ownership of the vehicle’s upkeep, including regular car washes, refueling/charging, and coordinating routine maintenance and servicing appointments.
• Schedule Management & Readiness: Proactively plan routes, monitor traffic conditions, and maintain flexibility to support changes in the Principal’s schedule while ensuring timely arrivals and departures.
• Safety & Professionalism: Maintain a clean, smoke-free vehicle environment and uphold the highest standards of road safety, confidentiality, and discretion at all times.

Qualifications & Requirements

• Experience: Proven track record as a Personal or Private Driver supporting senior executives, business owners, or private families. Experience handling Electric Vehicles (EVs), large MPVs (e.g., Toyota Alphard), and luxury continental cars is highly advantageous.
• Driving Excellence: An exemplary driving record with no demerit points. Possession of a Private Hire Driver's Vocational Licence (PDVL) is a significant bonus and preferred.
• Language Proficiency: Bilingual proficiency in English and Mandarin is required to facilitate clear communication and coordination with Mandarin-speaking family members and household staff.
• Physical Fitness & Safety: Must be physically fit to assist with carrying groceries, luggage, and household items where required. The role requires maintaining high levels of alertness for extended periods and a commitment to safe driving practices.
• Health & Screening: Due to the nature of the role and to ensure the safety and security of all passengers, the successful driver may be asked to undergo a pre-employment medical examination and comprehensive background and reference checks.
• Eligibility: This role is based in Singapore; candidates must have the legal right to work in Singapore.

Working Arrangement & Benefits

• Package: Competitive base salary + 13th Month (AWS) and performance-based bonus. Salary will be commensurate with experience and is inclusive of the specified weekend and public holiday support.
• Working Hours: Primarily Monday to Friday, with working hours aligned to the Principal’s business commitments and family schedules.
• Weekend & PH Support: As the role supports both the Principal’s professional commitments and family activities, the driver is expected to provide support on one day each weekend and on Public Holidays (excluding Chinese New Year).
• "Give-and-Take" Philosophy: In recognition of weekend and public holiday support, the driver may enjoy extended paid rest periods when the family is travelling overseas (subject to operational requirements).
• Vehicle Usage: The driver may drive the vehicle home most days, providing significant convenience and time savings for the daily commute.

This role may require a reasonable amount of local travel and external errands as needed.

• Assist with the Principal's day-to-day personal affairs, including but not limited to scheduling, appointments, dining arrangements, transportation, document delivery, and other ad hoc matters.
• Coordinate travel arrangements, including flights, hotels, ground transportation, visas, insurance, and related logistics, ensuring smooth and seamless travel experiences.
• Liaise with external service providers, including housekeeping staff, property management offices, drivers, schools, banks, and other relevant parties.
• Track and follow up on personal and family-related matters, providing timely updates and resolutions.
• Handle daily purchasing requests, including gifts and other personal procurement needs.
• Assist with reimbursements, payment records, and expense tracking.
• Support the planning and execution of private gatherings, business dinners, and family activities.
• Coordinate venues, catering, vendors, and event logistics.
• Maintain organized records of personal contacts, vendors, and other relevant information.
• Strictly adhere to confidentiality requirements and handle personal and sensitive information with discretion.
• Respond promptly and effectively to ad hoc assignments and urgent requests from the Principal.
• Independently assess priorities and manage unexpected situations with flexibility and professionalism.

Qualifications & Requirements

• Bachelor's degree or above; field of study is not restricted.
• Prior experience as an Executive Assistant, Personal Assistant, Lifestyle Assistant, Family Office Assistant, Administrative Support professional, or within a high-end service environment is preferred.
• Flexible and willing to accommodate occasional irregular working hours and urgent requests.
• Proficient in both English and Chinese, with strong verbal and written communication skills.
• Experience supporting high-net-worth individuals, entrepreneurs, senior executives, or family offices is highly preferred.
• Familiarity with local lifestyle and service resources, including healthcare, education, property management, dining, transportation, and event planning.
• Mature, emotionally intelligent, professional, and capable of building and maintaining long-term working relationships.
• Strong problem-solving skills, with the ability to drive outcomes effectively even when information is incomplete.

About the Role

Key Responsibilities

• Develop and continuously iterate the data platform
• Build and maintain data pipelines for user behavior data processing based on Flink, ensuring the completeness, accuracy, and stability of tracking data.
• Design and maintain the user tagging system, including tag generation, quality validation, and tag governance.
• Build and maintain data application pipelines to support downstream data needs from product, operations, analytics, and algorithm teams, including behavior and user tag data.
• Collaborate closely with product managers, data analysts, and business teams to drive the application of user data in refined operations and product optimization.
• Continuously improve the performance, observability, maintainability, and scalability of the data application pipeline.

Qualifications

• Bachelor’s degree or above in Computer Science, Software Engineering, Data Science, or related fields. At least 5 years of experience in complex system development.
• Proficient in Java, Python, and SQL for data application development or data processing.
• Familiar with the Apache Flink framework and experienced in real-time or near real-time processing of user behavior data.
• Solid understanding of event tracking systems, including event definitions, attributes, user ID mapping, and tracking data flow.
• Familiar with common user tag categories (e.g., behavioral tags, attribute tags, statistical tags) and their production mechanisms.
• Experience with relational databases (RDBMS), NoSQL databases, and analytical data systems (OLAP), such as MySQL, Redis, HBase, Doris, and ClickHouse.
• Strong problem-solving and troubleshooting skills, with the ability to translate business requirements into data processing solutions and collaborate effectively across teams.
• Able to use Chinese and English as dailying working language to work with chinese-speaking stakeholders

We are looking for a skilled C++ Developer to design, develop, and optimize high-performance trading systems. You will work closely with traders, quants, and infrastructure teams to build low-latency, scalable solutions that power real-time trading and market data processing.

Key Responsibilities

• Design and develop low-latency, high-performance trading systems using C++
• Optimize system performance with a focus on latency, throughput, and reliability
• Collaborate with quantitative researchers and traders to translate strategies into production systems
• Troubleshoot production issues and ensure system stability in a fast-paced environment
• Write clean, maintainable, and well-documented code following best practices
• Participate in code reviews, system design discussions, and architecture improvements
• Continuously improve system performance through profiling and tuning

Requirements

• Master’s degree in Computer Science, Engineering, or related field
• 5+ years (or more for senior roles) of strong C++ development experience
• Solid understanding of:Data structures and algorithms,Multithreading and concurrency,Memory management and performance optimization
• Experience working on low-latency or real-time systems
• Preferable hands-on experience in trading system /Risk management
• Familiarity with Linux/Unix environments
• Understanding of networking concepts (TCP/IP, sockets)
• Strong problem-solving skills and attention to detail
• Able to use Chinese and English as daily working language to work with chinese-speaking stakeholders

About the Role

We are seeking top-tier fresh graduates / junior AI Scientists to build intelligent fraud detection and abuse prevention systems that secure our users and trading ecosystem.

This role targets high-caliber candidates with strong academic performance and proven Web3 internship experience, operating at the intersection of:

• Fraud & trading risk modeling
• AI Agent systems (LLM reasoning, tool use, multi-agent workflows)
• On-chain / trading data intelligence

You will help build production-grade AI and agent-driven systems to detect, explain, and prevent fraud, abuse, and manipulative trading behaviors in real time.

Key Risk Use Cases You'll Tackle

• Identity Risk: Fake KYC profiles, identity farming, synthetic user creation
• Account Takeover (ATO): Compromised credentials, anomalous login behavior, device takeover
• Toll Fraud & Drainers: Malicious contracts, phishing-induced approval scams
• Money Laundering: Cross-chain obfuscation, mixer usage, layering strategies
• Campaign Reward Abuse: Multi-account farming, airdrop exploitation, referral fraud

Trading-Related Abuse & Market Manipulation

• Wash trading / self-trading to inflate volume
• Spoofing / layering (fake order book depth)
• Abnormal high-frequency or latency arbitrage behaviors
• Coordinated trading rings / signal groups
• Bonus abuse via hedging / risk-free trading strategies
• Market manipulation patterns across accounts or venues

Responsibilities

AI / Machine Learning

• Build models for: anomaly detection (user & trading behavior) behavioral scoring (traders, accounts, entities) fraud and manipulation pattern discovery
• Engineer features from: on-chain transactions order book, trades, positions, PnL user activity (login, device, referral signals)

AI Agent Systems (Core Focus)

• Design LLM-powered AI Agents for: fraud investigation trading behavior analysis
• Implement: multi-step reasoning over user + trading data tool calling (risk systems, trading DB, on-chain APIs)
• Build multi-agent workflows (planner / analyzer / scorer) using: LangChain / LangGraph
• Develop RAG systems for: case analysis and investigation workflows
• Improve agent reliability: prompt design, evaluation, failure handling

Data & Engineering

• Build pipelines using: Python + PyTorchLLM stack (OpenAI / vLLM / LangChain / LangGraph)
• Develop systems for: real-time risk scoring monitoring and alerting
• Work cross-functionally to deploy production solutions

Collaboration & Learning

• Partner with trading, risk, and compliance teams
• Understand evolving fraud and market manipulation patterns
• Continuously improve models and agent systems

Qualifications

Must-Have (Strict Requirements)

• Master’s in Computer Science, Data Science, Quantitative Finance, or related field
• GPA ≥ 4.0 / 5.0
• MANDATORY: Internship/working experience in crypto / Web3 industry (exchange, DeFi, on-chain analytics, trading platform, etc.)
• Strong foundation in: machine learning / statistics data analysis and feature engineering
• Hands-on experience with: Python + PyTorch real datasets (trading / user / transaction data preferred)
• Practical experience in at least ONE: fraud / risk / trading behavior analytics LLM / AI Agent systems (RAG, tool calling, workflows)
• Understanding of: trading data (orders, trades, positions) or blockchain data (transactions, wallets, contracts)

AI Agent Requirement (Key Differentiator)

• Hands-on experience building: LLM systems with RAG, tool use, multi-step reasoning
• Familiar with: LangChain / LangGraph or equivalent
• Able to explain: how agents plan, call tools, and handle complex workflows

Preferred

• Exposure to: trading systems, order book mechanics, or market microstructure
• Experience with: fraud detection / AML / abuse detection systems
• Knowledge of: clustering, graph analysis, or behavioral segmentation
• Built: dashboards, alerting systems, or internal risk tools

What We Offer

• Competitive compensation for top-tier junior talent
• Work on real trading + fraud risk systems at scale
• Direct exposure to AI Agents + Web3 + trading infrastructure
• Fast growth with high ownership
• Global team across AI, trading, fraud, and blockchain