About us. RKA is a 47 year-old family run business in the RNG market specializing in gas anlaysis and measuremment. The RNG market is a fast growing segment and we have been expanding rapidly to continue servicing our established customer base. Our work environment includes. Modern office setting. Relaxed atmosphere. On-the-job training. Company perks. Safe work environment. Lively atmosphere. Job Summary. Seeking a skilled Field Service Technici...