Software Engineer (AL-FNC250102 001/01)

Xcellink Pte Ltd; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Xcellink Pte Ltd in Singapore invites an experienced embedded software engineer to design and develop devices for an integrated e-payment Fare Collection System. You will participate in the full SDLC, from requirements to testing and deployment.

You will implement secure communications, work with TCP/IP, HTTPS, MQTT-S, and cloud integrations, and contribute to documentation, testing, and on‑going support. Strong C++ on embedded systems and UML modeling are essential.

Qualifications

• At least 5 years of object-oriented software development experience.
• Degree in Electrical/Electronics/Computer Engineering, Computer Science, or related field.
• Experience through at least one complete Software Development Lifecycle.

Responsibilities

• Designing and developing software applications for embedded devices.
• Implementing and optimizing communication protocols (TCP/IP, HTTPS, FTPS/SFTP, MQTT-S) for embedded devices to cloud platforms.
• Testing, debugging, and troubleshooting embedded devices for functionality, connectivity, performance, and reliability.
• Preparing SDLC deliverables such as Requirements Specifications, Software Architecture Documents, Design Specifications, Interface Specifications, and manuals.
• Providing day-to-day application support and liaising with users about requirements and issues.

Skills

C++ on embedded platforms

Object-oriented design

Multithreading

Socket programming

Embedded Linux

QNX

VxWorks

UML modeling

Requirements Specifications

Scrum / AGILE

Docker

AWS Greengrass

Cloud integration

Education

Electrical/Electronics/Computer Engineering degree

Related field degree

Tools

QNX

VxWorks

Embedded Linux

Docker

AWS Greengrass

Job description

Responsibilities:

You will be tasked with designing and developing devices for an integrated e-payment Fare Collection System with one of our key clients. You will participate in the entire software development lifecycle, from requirement definition to design, development, and testing. Key activities include:

• Gathering requirements.
• Designing and developing software applications for embedded devices.
• Implementing and optimizing communication protocols (e.g., TCP/IP, HTTPS, FTPS/SFTP, MQTT-S) to ensure secure and reliable connections between embedded devices and on-premises/cloud platforms.
• Conducting thorough testing, debugging, and troubleshooting of embedded devices to resolve issues related to functionality, connectivity, performance, and reliability.
• Preparing and submitting various deliverables throughout the Software Development Lifecycle (SDLC), such as Business Rules, Software Requirement Specifications, Software Architecture Documents, Design Specifications, Interface Specifications, Source Specifications, Operation and Maintenance Manuals, Training Manuals, and other necessary documents.
• Providing day-to-day application support.
• Liaising with users regarding requirements, testing, and production issues.

Requirements

• At least 5 years of experience in object-oriented software development.
• A degree in Electrical/Electronics/Computer Engineering, Computer Science, or a related field.
• Experience in developing software through at least one complete Software Development Lifecycle.
• Proficiency in writing Requirements Specifications, Use Cases, Design Documentation, and designing software using object-oriented design and UML modeling.
• Strong knowledge and experience in C++ on embedded platforms (e.g., QNX, VxWorks, Embedded Linux).
• Experience in multi-threading, socket programming, and serial/USB communication.
• Familiarity with Docker container development and AWS Greengrass is advantageous.
• Experience with Scrum AGILE methodology is a plus.
• Ability to develop and integrate embedded devices with cloud platforms.
• Strong analytical and problem-solving skills.
• Good written and verbal communication skills.
• Self-motivated, independent, and a good team player.