Total 522 Manager technical engineer job vacancies

We are seeking a forward-thinking Product Manager to drive Day 0–1 product strategy and delivery for impactful public sector digital initiatives.

• Working Hours: Mon-Fri
• Working Location: Central
• Job Type: Contract
• Salary Package: Up to $11,000 (basic) + AWS

You will drive product discovery, roadmap & MVP delivery for government digital initiatives. Strong Agile, stakeholder managementt & public sector experiences preferred.

Responsibilities

• Lead product discovery (Day 0) to define vision, problem statements, and value propositions
• Drive product setup and initial delivery (Day 1), including roadmap and MVP definition
• Engage stakeholders across government agencies to align on goals and priorities
• Translate policy and business needs into product requirements and user stories
• Manage product backlog and work closely with engineering, design, and vendors
• Champion Agile practices and iterative delivery
• Track product performance and continuously improve user experience

Requirements

• Degree in Business, IT, or related field
• Over 7 years of experience in Product Management
• Experience delivering at least 1 AI-related project, with practical use of GenAI or similar technologies.
• Strong understanding of software design principles, data structures, algorithms, and modern design patterns; able to evaluate solution options and architectural trade-offs.
• Experience with cloud platforms and modern engineering practices (Agile, DevOps, CI/CD, automated testing, containers such as Docker/Kubernetes), including end-to-end delivery with post-release support ownership and risk mitigation.
• Solid understanding of cybersecurity principles and data privacy/compliance requirements in government contexts.
• Ability to drive product strategy from concept to implementation

Nice to Have

• Experience working with government projects
• Familiarity with policy-driven or citizen-facing products
• Background in UX, data analytics, or service design

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy(scientecconsulting.com/privacy-policy).

This authorizes us to:

• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Elane Yap Theng Yu- R1989397

ScienTec Consulting Pte Ltd - 11C5781

Key Responsibilities

Technical Leadership

• Lead and mentor a team of Java developers, providing technical guidance and best practices.

• Oversee the design and development of scalable and maintainable Java-based applications.

• Review system architecture and ensure adherence to coding standards and development frameworks.

Software Development Management

• Manage the full software development lifecycle including planning, development, testing, deployment, and maintenance.

• Coordinate with cross-functional teams to ensure project timelines and deliverables are met.

• Monitor development progress and ensure high-quality deliverables.

Architecture & System Design

• Design system architecture for enterprise applications and distributed systems.

• Evaluate and implement appropriate frameworks and development tools.

• Ensure systems are scalable, secure, and optimized for performance.

Project Coordination

• Work closely with product managers, stakeholders, and engineering teams to translate business requirements into technical solutions.

• Manage project priorities, resource allocation, and development schedules.

Quality & Performance

• Establish development standards, coding practices, and code review processes.

• Ensure system reliability, security, and performance through continuous improvement.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.

• 7+ years of experience in Java software development.

• 2+ years of experience in leading or managing development teams.

• Strong proficiency in Java, Spring Framework, and enterprise application development.

• Experience with RESTful APIs and microservices architecture.

• Familiarity with database technologies such as MySQL, PostgreSQL, or Oracle.

• Experience with version control systems (Git) and development collaboration tools.

Job Summary: The Project Manager is a key leadership role responsible for planning, executing, and closing projects within an organization. Project Managers oversee all aspects of a project, ensuring that it is completed on time, within scope, and within budget. They play a crucial role in delivering successful projects that align with the organization's strategic goals.

Key Responsibilities:

1. Project Planning:Define project scope, objectives, and deliverables in collaboration with stakeholders.
   Develop a detailed project plan, including timelines, resource requirements, and budgets.
2. Team Leadership:Assemble and lead project teams, ensuring effective communication and collaboration.
   Assign tasks, set project goals, and motivate team members to meet objectives.
3. Risk Management:Identify potential project risks and develop mitigation strategies.
   Monitor and manage project risks throughout the project lifecycle.
4. Budget and Resource Management:Create and manage project budgets, tracking expenses and resource allocation.
   Optimize resource utilization and control project costs.
5. Project Execution:Execute the project plan, ensuring that tasks are completed on time and in accordance with quality standards.
   Monitor project progress and address any deviations from the plan.
6. Stakeholder Communication:Maintain clear and consistent communication with project stakeholders, including clients, team members, and senior management.
   Provide regular project updates and address concerns or questions.
7. Quality Assurance:Implement quality control measures to ensure project deliverables meet established standards.
   Conduct testing and quality checks as necessary.
8. Change Management:Manage changes to project scope, objectives, and requirements, assessing their impact and obtaining necessary approvals.
   Ensure that changes are properly documented.
9. Project Documentation:Maintain comprehensive project documentation, including project plans, status reports, and meeting minutes.
   Archive project documents for future reference.
10. Project Closure:Ensure the successful completion of the project, obtaining necessary approvals and sign-offs.
    Conduct project post-mortems to assess lessons learned and areas for improvement.

Requirements:

1. Education: A bachelor's degree in a relevant field is typically required. Project management certifications such as PMP (Project Management Professional) or PRINCE2 may be preferred.
2. Experience: A minimum of 3-5 years of project management experience, including experience leading and managing projects, is typically required.
3. Project Management Tools: Proficiency in project management software and tools (e.g., Microsoft Project, Trello, Asana) is important.
4. Leadership Skills: Strong leadership, team management, and interpersonal skills are essential for guiding project teams and collaborating with diverse stakeholders.
5. Communication: Excellent verbal and written communication skills for effective project documentation and stakeholder interaction.
6. Problem-Solving: Strong analytical and problem-solving abilities to address project challenges and make data-driven decisions.
7. Adaptability: The ability to adapt to changing project requirements and circumstances is crucial for success.
8. Organizational Skills: Strong organizational skills to manage multiple tasks, priorities, and deadlines effectively.
9. Risk Management: Understanding of risk assessment and mitigation techniques is important for managing project risks.
10. Quality Management: Knowledge of quality assurance and quality control processes to ensure project deliverables meet standards.

The Project Manager is a central figure in an organization's project management process, ensuring that projects are executed successfully and contribute to the organization's strategic objectives. They must possess strong leadership, organizational, and communication skills to manage project teams and deliver results within scope, on time, and within budget.

Brief Summary:

Join us as a Technical Manager, where you'll leverage your AWS expertise and infrastructure management skills to oversee critical systems supporting secure communications. Drive impactful outcomes in a dynamic environment while ensuring system performance and compliance.

Responsibilities:

• Oversee complete system operations and lifecycle management to guarantee availability, reliability, security, scalability, and resilience.

• Act as the primary system owner and escalation point for the assigned systems.

• Lead system upgrades, integrations, migrations, and change initiatives.

• Manage incident resolution, problem management, and service requests in alignment with established service levels.

• Ensure adherence to security policies, standards, procedures, and regulatory requirements, including conducting regular security reviews and risk assessments.

• Maintain thorough system documentation to facilitate audits and governance processes.

• Oversee vendor management, including service delivery, compliance with SLAs, and alignment with industry best practices.

• Handle budgeting, cost control, and related system expenditures.

• Lead procurement efforts, including tender specifications, evaluations, and contract negotiations.

• Collaborate with cross-functional teams to ensure technology delivery aligns with business objectives.

Requirements:

• Minimum 7 years of robust IT infrastructure experience, with a preference for candidates with stable career histories.

• Strong hands-on proficiency with AWS, encompassing both infrastructure and application management (e.g., EC2, VPC, IAM, S3, security, and monitoring).

• Relevant AWS certifications at Associate or Professional level.

• Demonstrated experience managing IT projects, specifically delivering complex infrastructure or platform initiatives.

• Solid understanding of production-grade, high-availability systems including DNS (Domain Name System).

Interested candidate who wish to apply for the advertised position, please click “Apply”. We regret that only shortlisted candidates will be notified 

EA License No.: 01C4394 (PERSOL Singapore Pte Ltd) 

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at https://www.persolsingapore.com/policies. You acknowledge that you have read, understood, and agree with the Privacy Policy. 

Key Responsibilities

• Drive programme execution aligned to business strategy

• Establish and maintain governance, risk, and reporting frameworks

• Oversee budgets, financial forecasting, and KPI tracking

• Manage resource capacity planning and cross-project dependencies

• Provide consolidated status updates to senior leadership

• Lead project lifecycle management from initiation to closure

• Facilitate change management and benefits realisation

• Build strong stakeholder relationships and motivate delivery teams

Requirements

• Proven track record managing full project/programme lifecycles

• Experience leading cross-functional teams (5–25 members)

• Strong knowledge of Agile or hybrid project methodologies

• Experience in programme-level financial and risk management

• Proficiency in MS Project, Excel, PowerPoint

• Strong communication, negotiation, and stakeholder management skills

Project Management

• Lead end-to-end technical project delivery: scoping, planning, execution, commissioning, and handover
• Manage project timelines, budgets, deliverables, and stakeholder alignment across internal teams and external vendors
• Prepare and maintain project documentation, technical reports, risk registers, and progress updates
• Conduct risk assessments and propose mitigation plans to ensure execution within scope, schedule, and budget
• Support CAPEX planning and business case development with detailed engineering input
• Coordinate multi-site and cross-functional projects, including engaging global factory teams for alignment and knowledge transfer

Technical Engineering & Operations

• Lead troubleshooting of packing line issues — mechanical, electrical, and process-related — during both startup and steady-state operations
• Identify root causes of recurring issues and implement corrective and preventive actions
• Manage and execute preventive maintenance schedules to ensure equipment reliability and uptime
• Liaise with equipment suppliers for technical support, spare parts management, and warranty resolution
• Ensure compliance with GMP, food safety, and hygiene standards across all technical activities
• Act as a shared global technical resource: provide remote or on-site engineering support to other factories within the group as required

Automation & Continuous Improvement

• Drive automation initiatives to improve line efficiency, reduce downtime, and enhance process reliability
• Implement and optimise machine automation including sensors, controls, and PLC logic adjustments at a troubleshooting level
• Evaluate opportunities for automation in material handling, inline inspection, and end-of-line operations
• Work with automation partners and vendors on integration, testing, and commissioning of new systems
• Support development of digital monitoring tools such as OEE dashboards and machine data collection platforms
• Provide structured training to operators and technicians on new equipment and automation systems

Equipment Scope — Required Hands-On Exposure

• Jar filling, capping, and induction sealing lines
• Vertical / horizontal form-fill-seal (VFFS / HFFS) machines for sticks and sachets
• Premade pouch (doypack) filling and sealing systems
• In-line inspection systems: checkweigher, metal detector, X-ray
• Coding, labelling, and end-of-line automation systems

Project Management

• Lead end-to-end technical project delivery: scoping, planning, execution, commissioning, and handover
• Manage project timelines, budgets, deliverables, and stakeholder alignment across internal teams and external vendors
• Prepare and maintain project documentation, technical reports, risk registers, and progress updates
• Conduct risk assessments and propose mitigation plans to ensure execution within scope, schedule, and budget
• Support CAPEX planning and business case development with detailed engineering input
• Coordinate multi-site and cross-functional projects, including engaging global factory teams for alignment and knowledge transfer

Technical Engineering & Operations

• Lead troubleshooting of packing line issues — mechanical, electrical, and process-related — during both startup and steady-state operations
• Identify root causes of recurring issues and implement corrective and preventive actions
• Manage and execute preventive maintenance schedules to ensure equipment reliability and uptime
• Liaise with equipment suppliers for technical support, spare parts management, and warranty resolution
• Ensure compliance with GMP, food safety, and hygiene standards across all technical activities
• Act as a shared global technical resource: provide remote or on-site engineering support to other factories within the group as required

Automation & Continuous Improvement

• Drive automation initiatives to improve line efficiency, reduce downtime, and enhance process reliability
• Implement and optimise machine automation including sensors, controls, and PLC logic adjustments at a troubleshooting level
• Evaluate opportunities for automation in material handling, inline inspection, and end-of-line operations
• Work with automation partners and vendors on integration, testing, and commissioning of new systems
• Support development of digital monitoring tools such as OEE dashboards and machine data collection platforms
• Provide structured training to operators and technicians on new equipment and automation systems

Equipment Scope — Required Hands-On Exposure

• Jar filling, capping, and induction sealing lines
• Vertical / horizontal form-fill-seal (VFFS / HFFS) machines for sticks and sachets
• Premade pouch (doypack) filling and sealing systems
• In-line inspection systems: checkweigher, metal detector, X-ray
• Coding, labelling, and end-of-line automation systems

Job Details:

You will be part of the technical specialists working at the waste management facilities including Integrated Waste Management Facility (IWMF) - a large-scale waste management infrastructural project, and Tuas South Incineration Plant (TSIP).

· You may be part of the project team to supervise IWMF construction progress.

The work scope includes:

1. To work with project consultants and key stakeholders, such as other government agencies, on the design of the various facilities in IWMF and ensure that IWMF is constructed, erected, installed in accordance with design specifications and complying with statutory requirement.
2. To participate in the testing, commissioning of mechanical, process, or electrical, instrument, control and automation equipment/systems.
3. To attend factory acceptance tests (FATs) at local and overseas factories to witness and verify quality and performance of major equipment/systems.

· You may be part of the technical team in the operation and maintenance of TSIP. Your work scope includes:

1. To lead a team of technical supervisors and specialists and coordinate maintenance work between contractors and maintenance sections to ensure the safe, smooth and efficient operations of the waste-to-energy facility.
2. To implement preventive maintenance and overhaul programs for the facility's electrical and control equipment such as turbo-generators, motors, switchgears, low tension and high tension equipment, distributed control system and field instruments.
3. To administer contracts for the operation and maintenance of mechanical, EICA or building services equipment
4. To enforce permit-to-work system and safe work culture including supervising contractors’ work for quality and safety
5. To formulate and prepare standard operating and safety procedures, equipment testing / changeover programmes
6. To perform shift work in a waste-to-energy facility, if needed
7. To work closely with the management of TSIP to implement initiatives on safety and continuous improvement to enhance the safety culture and standards within the plant, as well as drive projects to achieve operational excellence.

Job Requirements:

• Degree in Engineering (Mechanical, Electrical, Civil and Structural Engineering, Chemical, Environmental Engineering)
• Preferably with 3-5 years of relevant experience. Fresh graduates are welcome to apply*.
• Candidates with professional certification, e.g. Professional Engineer, Steam Engineer, Licensed Electrical Worker, Workplace Safety and Health Officer, will be given preference
• Possess good technical background and strong analytical skills. Knowledge in solid waste management would be an advantage
• Proficient in Microsoft Office, and preferably in Navisworks and Primavera P6
• Mature, independent, resourceful, and a good team player
• Good interpersonal communication, presentation and writing skills
• Able to perform shift work will be advantageous
• Able to work at construction sites and travel overseas for FATs and training

As part of the shortlisting process for this role, you may be required to complete a medical declaration and/or undergo further assessment.

*Officers will first undergo training such as foundation modules on the operation and maintenance of waste management facilities and WTE plants; and an attachment with On-Job-Training at TSIP.  Thereafter, they can be deployed for shift or non-shift work at IWMF or TSIP.

Location: Tuas

Working Arrangement:

Working Day : Everyday

(including weekends and public holidays depending on 12-hour shift cycle)

Rest Day : 5 rest days within one 15-day

Salary: TBC depending on relevant experience

Permanent Position

EA License No.: 96C4864

Reg No.: R26159658 BRANN LEONG CHUN HOE

• Plan and execute marketing initiatives for AI data center and immersion cooling solutions.
• Create professional content: presentations, solution briefs, case studies, and digital/LinkedIn materials.
• Drive local campaigns, webinars, and events to generate leads and strengthen client engagement.
• Collaborate closely with sales and technical teams to develop customer-facing materials and proposals.
• Represent the company professionally at client meetings and industry events.

Requirements:

• Degree in Engineering, IT, Marketing, Business, or equivalent
• At least 5 years of B2B marketing experience in data centers, IT infrastructure, AI/GPU platforms, or cooling solutions.
• Solid understanding of data center operations, rack layouts, cooling technologies, and GPU-based AI systems.
• Ability to translate technical concepts into clear value propositions for non-technical stakeholders.

If you are keen to apply for the position, kindly email your detailed resume in MS Word to hr@recruit-expert.com

Please note that only shortlisted candidates will be notified.

For more job opportunities, please visit our website at www.recruit-expert.com

EA Licence: 19C9701

Registration: R1326740

Review electrical engineering drawings and refer issues requiring changes.

Assign job tasks and work as per electrical project schedules.

Review all electrical drawings with Leadmen performing on assigned jobs to them.

Stimulate fabrication standards to ensure quality work attained from assigned staff.

Recruit, guide, train, monitor and terminate assigned employees as required.

Recommend effective solutions specified particular weight related to employment status of employees.

Schedule, assign, plan and supervise electrical shop personnel performance on different electrical projects.

Plan and prepare work and equipment usage schedule

Review electrical engineering drawings and refer issues requiring changes.

Assign job tasks and work as per electrical project schedules.

Review all electrical drawings with Leadmen performing on assigned jobs to them.

Stimulate fabrication standards to ensure quality work attained from assigned staff.

Recruit, guide, train, monitor and terminate assigned employees as required.

Recommend effective solutions specified particular weight related to employment status of employees.

Schedule, assign, plan and supervise electrical shop personnel performance on different electrical projects.

Plan and prepare work and equipment usage schedule

Review electrical engineering drawings and refer issues requiring changes.

Assign job tasks and work as per electrical project schedules.

Review all electrical drawings with Leadmen performing on assigned jobs to them.

Stimulate fabrication standards to ensure quality work attained from assigned staff.

Recruit, guide, train, monitor and terminate assigned employees as required.

Recommend effective solutions specified particular weight related to employment status of employees.

Schedule, assign, plan and supervise electrical shop personnel performance on different electrical projects.

Plan and prepare work and equipment usage schedule

The purpose of this role is to lead and elevate on‑site technology operations across all hospital locations, ensuring that every clinician, staff member, and business team receives reliable, high‑quality, and user‑centred technology support. The role exists to enable safe, efficient clinical care and seamless business operations by overseeing service delivery, strengthening technology partnerships with site leaders, and driving continuous improvement in the end‑user experience.

This position ensures that technology is dependable, secure, and aligned with organisational priorities, while proactively identifying risks, resolving issues, and optimising processes. A critical focus is placed on supporting doctors and clinical teams, ensuring technology never becomes a barrier to patient care. The role also provides stewardship of the full lifecycle of end‑user devices, ensuring accuracy, compliance, and readiness across all sites.

Ultimately, the role is accountable for creating a high‑performing, customer‑focused on‑site technology environment that delivers operational excellence, fosters trust with stakeholders, and contributes directly to improved clinical and organisational outcomes.

You will make an impact by

• Overseeing the planning and delivery of on‑site technical support, ensuring timely resolution of incidents and service requests noting demand from hospital stakeholders.
• Maintaining strong operational discipline across asset management, device lifecycle, security compliance, and technology standards.
• Providing clear, data‑driven reporting and insights to Director of Service Delivery highlighting performance trends, risks, and opportunities for continuous improvement.
• Identifying opportunities for improvement, recommending tools, processes, or automation that enhance productivity or reduce risk.

Position Description Inherent Requirements

Review electrical engineering drawings and refer issues requiring changes.

Assign job tasks and work as per electrical project schedules.

Review all electrical drawings with Leadmen performing on assigned jobs to them.

Stimulate fabrication standards to ensure quality work attained from assigned staff.

Recruit, guide, train, monitor and terminate assigned employees as required.

Recommend effective solutions specified particular weight related to employment status of employees.

Schedule, assign, plan and supervise electrical shop personnel performance on different electrical projects.

Plan and prepare work and equipment usage schedule

Job Description & Requirements

Overall Management of Technical Delivery including the Upstream and Downstream Interfacing Systems

1. Stakeholder Management

a. Manage project Business and Technology stakeholders, e.g., escalation, expectation, conflict, scope changes, etc.

b. Manage relationships with stakeholders

c. Ensure teams work in a collaborative environment

2. Scope Management

a. Manage all changes to the agreed scope of work

b. Review and assess changes and impact to timeline & cost

c. Ensure all changes are approved

3. Project Governance

a. Coordinate preparation of project plan for ITC, reporting to Program Manager

b. Secretary for PSC meetings, chair PWC meetings for their module/project

4. Risk and Issue Management

a. Anticipate, capture and manage overall project-level risks and issues

b. Track risk aging

c. Own and drive resolution and escalate risks and issues in a timely manner

5. Implementation Management

a. Prepare overall implementation plan taking inputs from all stakeholders including technology. business, operations and co-ordinate execution by respective application teams

6. Process Adherence

a. Partner with stakeholders in ensuring System Development Methodology is followed

7. Project Reporting

a. Measure, monitor and report progress to stakeholders

Requirements:

• At least 6 years’ Experience of Cheque Truncation system knowledge
• At least 8 years of experience in every stage of software development lifecycle. Relevant Technical & PM certification will be plus including knowledge of technologies like UNIX, Java, MQ etc.
• Experience in effective planning, execution, monitoring End-to-end technical activities and reporting to senior management
• Experience in managing Technology vendor and Business stakeholders from various ASEAN countries and have appreciation of local IT regulations

Other skills

• Experience in communicating with technical stakeholders
• Highly effective communicating with technical stakeholders, proficient communicating with non-technical stakeholders
• Good problem solving and analytical skills

Education

Degree in computer science or related professional/technical qualification will be advantageous although not mandatory

Key Domain/ Technical Skills:

At least 8 years of experience in every stage of software development lifecycle. Relevant Technical & PM certification will be plus including knowledge of technologies like IBM OS400, ATM Host, Middleware, MQ etc.

2.

SKILLS

Application Security

Architects

Banking

Conflict

Technical Product Manager (Maritime Data & Optimisation) x 2

Location: Singapore

About the Role

Faststream Recruitment is pleased to be the exclusive partner to be supporting a maritime technology platform specialising in voyage optimisation, emissions management, and data-driven decision tools in recruiting 2 Technical Product Managers to drive product development and innovation.

This role focuses on building scalable digital solutions that integrate bunkering operations, fuel efficiency, and emissions data

into a unified platform, enabling ship owners and operators to optimise performance, reduce costs, and meet decarbonisation targets.

You will act as the bridge between maritime operations and engineering, translating complex workflows into high-impact, user-centric products.

Key Responsibilities

Product Strategy & Roadmap

• Define and execute product strategy for voyage optimisation, fuel analytics, and emissions tracking solutions
• Develop and manage a roadmap focused on improving fuel efficiency, cost optimisation, and carbon performance
• Identify opportunities to enhance integration across bunkering, voyage planning, and vessel performance systems

Technical Delivery

• Translate operational requirements into clear technical specifications and user stories
• Work closely with engineering teams on data integration, APIs, and platform architecture
• Manage agile development processes, including sprint planning and backlog prioritisation

Maritime & Bunkering Expertise

• Provide subject matter expertise in bunkering operations, including fuel procurement, planning, consumption tracking, and reconciliation
• Ensure solutions address challenges such as fuel cost optimisation, emissions reporting (e.g. IMO, CII, EU ETS), and operational transparency
• Support the digitalisation and optimisation of end-to-end bunkering and voyage workflows

Data & Product Optimisation

• Leverage vessel and fuel data to generate actionable insights
• Drive continuous product improvement through data analysis and user feedback
• Enhance platform capabilities as a single source of truth for voyage and emissions data

Stakeholder Management

• Engage with ship owners, operators, charterers, and bunker stakeholders to gather requirements and validate solutions
• Act as the key interface between business, product, and engineering teams
• Support product adoption and go-to-market initiatives

Requirements

• Bachelor's degree in Engineering, Maritime Studies, Computer Science, or related field
• 3-7+ years of experience in product management, maritime operations, or technical roles
• Strong experience in bunkering operations is essential
• Familiarity with voyage optimisation, fuel performance, or emissions frameworks (e.g. IMO DCS, CII, EU ETS)
• Experience with data platforms, APIs, and analytics tools
• Strong understanding of vessel operations and maritime workflows
• Experience working in agile environments

Preferred Experience

• Background in maritime SaaS, voyage optimisation, or emissions platforms
• Exposure to AI-driven analytics or predictive modelling
• Experience with data visualisation tools (e.g. Power BI)
• Strong stakeholder engagement across technical and commercial teams

Phoebe Woo EA Reg No: R25142324

Faststream Recruitment Pte Ltd, EA License no: 09C3403