At Tetra Tech, you will work with high-performing teams who are passionate about using their expertise to find solutions to complex problems in water, environment, infrastructure, resource management, defence, energy, and international development. We are recruiting experienced Project Planners to work within our Project Controls team on a series of security, defence, and nuclear sector projects. About You: You will be an experienced project planner and scheduler, who will undertake planning and scheduling functions and performance monitoring. This includes: Development and updating of programmes. Submission of NEC-compliant programmes for acceptance. Using the principles of DCMA/CIOB Protocol to undertake integrity checks on supply chain and 3 rd party programmes. Maintenance, control, analysis and recovery-plan activities, through all stages of the Project Life Cycle. You will be capable of planning and scheduling major infrastructure, new build and refurbishment construction projects, including those with significant non-routine requirements. You should be proficient in developing programmes from "first principles" and be comfortable with the concepts of three-point estimates of time, the provision of time risk allowance and production of risk-adjusted programmes. We are looking for an agile practitioner who can build relationships, communicate with and support the projects and programme teams, while bringing an innovative approach to problem solving and scheduling. MACOSTE, MCIOB, MAPM or equivalent. You should demonstrate a good level of proficiency in the use of industry standard planning software, although training can be provided. You should have experience of using all industry-standard planning software, including Primavera P6, Microsoft Project (including POL) and Asta Powerproject. Experience of Quantitative Schedule Risk Analysis (QSRA) would be an advantage. We can provide training in the tools we use to produce Monte Carlo simulations, such as Primavera Risk Analysis, Predict! and RiskHive Arrisca. Experience at project level is . Experience of Defence sector projects is highly desirable. Ability to obtain security clearance is required. About Tetra Tech: Tetra Tech is a leading provider of high-end consulting and engineering services for projects worldwide. We combine the resources of a global, multibillion dollar company with local, client-focused delivery in more than 400 locations around the world. We are Leading with Science® to provide sustainable and resilient solutions for our clients. Tetra Tech is an equal opportunities employer and encourages applications from all suitably qualified and eligible candidates regardless of , , , , , transgender status, or belief, marital status, or and maternity/shared parental leave, in line with the Equalities Act 2010. We are very happy to discuss flexible working, including the possibility of reduced hours, flexible start and finish times, or compressed hours. We can offer a range of solutions to help you to get the most out of your work / life balance.