https://devglobaljobs.com/job/107555719-senior-estimation-engineer-electrical 2026-08-02 weekly 0.7 https://devglobaljobs.com/job/107540339-construction-supervisor-mechanical 2026-08-02 weekly 0.7 https://devglobaljobs.com/job/107524958-multiple-engineering-and-quantity-surveyor-jobs-in-qatar 2026-08-02 weekly 0.7