Organizations are seeking to gain a competitive advantage via increased employee performance as the business environment becomes more volatile and unpredictable than ever before. To achieve this, businesses are increasingly focusing on human resources practices using more innovative techniques. The current study's objective was to determine how employee performance in Kenya's reinsurance business is impacted by HRM practices. The research explicitly examined the influence of selected practices on overall employee performance. The study utilized a descriptive research design with a case study of Reinsurance Cooperation. The target population was employees of Reinsurance industry in Kenya in Nairobi City County. The specific objectives of the study were to determine the effect of training and development, performance appraisal, reward and compensation, and employee empowerment on employee performance at Kenya Reinsurance Corporation. The study was underpinned Ability, Motivation, Opportunity Theory; Resource Based Theory; and Best Fit Theory. The target audience was all employees of the Reinsurance Corporation in Nairobi City County. The target population will be 149 employees and the study employed the target population census since some other departments had less responses. Both qualitative and quantitative data approaches will be utilized in the study's data collecting. Tables, graphs, and charts were employed to display the results of the data analysis and summary utilizing both descriptive and inferential statistics. The study found that training and development, performance appraisal, reward and compensation and employee empowerment had a positive significant influence on employee performance of Kenya Reinsurance Corporation, Nairobi City County, Kenya. The study concludes that training and development helps companies gain and retain top talent, increase job satisfaction and morale and improve productivity. Performance evaluation measures an employee’s contribution in terms of increased company revenue and job performance, compared to industry standards and employee return on investment. A rewarding compensation and benefits plan can attract loyal, motivated and engaged candidates and may reduce the turnover rate of people in a company and empowering employees through greater autonomy has been directly linked to increased employee motivation.