Hand Soldering Operator

About Safetrust
Safetrust is building the future of identity.
Imagine a world where your phone, wearable, or digital credential becomes your secure key-unlocking buildings, systems, and experiences seamlessly across physical and digital environments.
That's what we do.
Our platform combines IoT devices, mobile credentials, and cloud-native architecture to power secure access for Fortune 200 companies and global enterprises. As we evolve from a hardware-centric model to a platform and services-driven business, this plays a critical role in shaping how the market understands-and adopts-
Safetrust.
About the role
The Hand Soldering Operator is primarily responsible for performing precision hand soldering operations on Printed Circuit Board Assemblies (PCBAs), including the installation, attachment, and soldering of additional electronic components according to engineering specifications, assembly drawings, BOMs, and work instructions.
The position requires strong technical skills and hands-on experience in soldering various types of electronic components, including Surface Mount Devices (SMD) and Through-Hole Technology (THT) components. The operator must ensure high-quality solder joints, accurate component placement, and compliance with applicable IPC standards.
In addition to regular soldering operations, the operator is responsible for performing PCBA modifications, component replacement, repair, and rework activities while maintaining product quality, process consistency, and workplace safety.
Key Responsibilities
Hand Soldering & Component Assembly
● Perform precision hand soldering operations to install and attach additional electronic components onto PCBAs according to engineering requirements.
● Perform soldering of various electronic components, including SMD and Through-Hole (THT) components.
● Handle and solder small-pitch components, connectors, wires, terminals, and other electronic components as required.
● Ensure correct component positioning, polarity, orientation, and soldering quality.
● Control soldering parameters, including soldering temperature, heating time, and solder application, to prevent thermal damage to PCBs and electronic components.
● Maintain consistent solder joint quality in accordance with applicable IPC standards.
PCBA Modification, Repair & Rework
● Perform component removal, replacement, and resoldering on PCBAs as required.
● Carry out PCBA modifications and additional component installations based on Engineering instructions.
● Identify and correct soldering defects, including Cold Solder Joints, Solder Bridges, Insufficient Solder, Excessive Solder, and other soldering-related defects.
● Ensure that no damage is caused to PCB pads, copper traces, solder masks, or surrounding components during soldering and rework activities.
● Report complex technical issues or defects beyond the operator's capability to the Engineering team.
Quality Control
● Perform visual inspections of PCBAs after rework to ensure solder joint quality and component condition.
● Ensure that no damage is caused to the PCB, pads, traces, or surrounding components during the rework process.
● Identify and report abnormal defects or issues beyond the operator's capability to the Production Line Leader or Engineering team.
● Ensure that reworked products meet quality requirements before being transferred to the next production process.
Safety & 5S
● Comply with occupational health and safety regulations, ESD (Electrostatic Discharge) requirements, and all applicable production area safety rules.
● Wear appropriate Personal Protective Equipment (PPE) as required for the job.
● Maintain a clean, organized, and safe working environment in accordance with 5S principles.
● Follow chemical handling, ventilation, and soldering fume control requirements.
● Immediately report any incidents, unsafe working conditions, or potential hazards identified during work activities.
Technical Skills
● Strong practical skills in precision hand soldering and electronic component assembly.
● Good understanding of PCB/PCBA structures, electronic components, and soldering processes.
● Ability to read assembly drawings, component placement diagrams, and technical work instructions.
● Proficient in operating soldering irons, hot air rework stations, and related soldering equipment.
● Good understanding of soldering defects and inspection criteria.
● Knowledge of IPC-A-610 and IPC-7711/7721 standards is required.
● Good understanding of ESD control requirements and proper handling of electronic components.
● Ability to independently identify and resolve common soldering quality issues.
Skills & Experience:
● High school diploma or college degree in Electrical Engineering, Electronics, Industrial Electronics, or a related field.
● Candidates with certificates or formal training in electronic soldering techniques are preferred.
● Minimum 2 years of hands-on experience in precision hand soldering, PCBA assembly, or electronic manufacturing.
● Proven experience in soldering both SMD and Through-Hole (THT) components.
● Experience working with fine-pitch components, connectors, ICs, and other electronic components is required.
● Experience in SMT, PCBA, or EMS manufacturing environments is highly preferred.
Why you'll love working here
● Competitive salary based on experience and performance
● Daily lunch is provided at the office
● Free coffee, tea, and refreshments
● Full statutory insurance (social, health, unemployment)
● Annual health check-up and paid annual leaves
● Professional, international working environment
Working Location: Level 6 Khanh Hoi 2 Building 360A Ben Van Don, Vinh Hoi, Ho Chi Minh City
Safetrust is an equal opportunity employer and prohibits discrimination and harassment of any kind. We offer an inclusive workplace and will not tolerate discrimination against any job candidate or employee due to age, race, religion, color, ethnicity, national origin, gender, gender identity/expression, sexual orientation, membership in an employee organization, medical condition, family history, genetic information, veteran status, marital status or parental status.