KLJ | 6,654 followers on LinkedIn. Engineering, Reimagined. | Since the 1930s, KLJ has worked alongside communities and clients of all sizes, partnering with cities, counties, and developers – just to name a few. At KLJ, we plan, design, and support infrastructure across the country such as roads, runways, pipelines, and parks. We create solutions that turn visions into reality and improve the lives of people and communities across the nation.