# C++ / Qt / System Integration Engineer

> Weekday AI · Bengaluru, India · Full-time · Posted 2026-08-27

**Salary:** INR 1,300,000–1,600,000

**Workplace:** on_site

**Department:** Weekday's Client via platform

## Description

𝗧𝗵𝗶𝘀 𝗿𝗼𝗹𝗲 𝗶𝘀 𝗳𝗼𝗿 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗪𝗲𝗲𝗸𝗱𝗮𝘆'𝘀 𝗰𝗹𝗶𝗲𝗻𝘁𝘀

𝗦𝗮𝗹𝗮𝗿𝘆 𝗿𝗮𝗻𝗴𝗲: 𝗥𝘀 𝟭𝟯𝟬𝟬𝟬𝟬𝟬 - 𝗥𝘀 𝟭𝟲𝟬𝟬𝟬𝟬𝟬 (𝗶𝗲 𝗜𝗡𝗥 𝟭𝟯-𝟭𝟲 𝗟𝗣𝗔)

Experience: 4+ yrs

Location: Bengaluru, Hyderabad

Job Type: Full-time

As a C++/Qt System Integration Engineer, you will be responsible for enhancing and maintaining an existing GUI application while ensuring seamless communication between software components and system hardware or registers. You will work across application development, communication interfaces, system integration, testing, and documentation.

The role requires strong debugging and problem-solving abilities, with an emphasis on understanding existing systems, implementing controlled changes, validating end-to-end functionality, and maintaining system reliability. You will collaborate with engineering and system teams to amend requirements, execute integration activities, perform acceptance testing, and support regression cycles.

## Requirements

### Key Responsibilities

-   Maintain, customize, and enhance existing **C++/Qt-based GUI applications**.
-   Analyse existing application architecture, code, interfaces, and system behaviour to implement required changes.
-   Develop and maintain **LAN-based communication** between application and system components.
-   Work with communication protocols, packet structures, message formats, and data handling mechanisms.
-   Implement and maintain **GUI-to-register mapping** and ensure accurate interaction between software controls and system registers.
-   Analyse communication and integration issues and perform detailed debugging and root-cause analysis.
-   Amend and maintain **Software Requirements Specifications (SRS)** based on system and product changes.
-   Support system integration activities across software, hardware, and communication interfaces.
-   Execute **Acceptance Test Procedures (ATP)** and document test results and observations.
-   Perform regression testing following software changes, fixes, and enhancements.
-   Develop and maintain technical documentation, integration records, test reports, and configuration details.
-   Coordinate with development, testing, system engineering, and other technical teams to resolve integration issues.
-   Validate system behaviour against functional and technical requirements.
-   Identify potential integration risks and proactively support their resolution.
-   Ensure changes are implemented in accordance with established development, testing, and documentation standards.

### What Makes You a Great Fit

-   **4+ years of experience** in C++ application development, system integration, or a related engineering role.
-   Strong hands-on experience with **C++ and Qt** development.
-   Experience maintaining and customizing existing **GUI applications**.
-   Strong understanding of LAN communication, packet structures, data formats, and communication interfaces.
-   Experience working with **GUI-to-register mapping** or similar software-to-hardware integration mechanisms.
-   Good understanding of system integration, interface validation, and end-to-end testing.
-   Experience with **SRS documentation, ATP execution, regression testing, and technical documentation**.
-   Strong debugging and troubleshooting skills across software and system-level issues.
-   Ability to understand legacy codebases and implement changes without compromising existing functionality.
-   Strong analytical and problem-solving abilities with excellent attention to detail.
-   Ability to work effectively with multidisciplinary engineering and technical teams.
-   Good written and verbal communication skills.
-   Strong ownership of assigned tasks and commitment to quality and delivery.
-   Experience in embedded systems, defence, aerospace, automotive, electronics, or other engineering-intensive environments is an advantage.

## Apply

[Apply at Weekday AI](https://apply.workable.com/weekday-1/j/FC39B454EA/apply)

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