How can I improve that?..

Hi, everyone!

Because of my poor English, can you help me to correct some phrases in my CV?
Here is the parts I didn`t sure are correct:

1. Sr. Design Engineer of Automated DSC
Designing and developing distributed control systems (DCS) for nuclear industry.

Responsibilities:
- designing special cabinets with devices for receiving analog and digital signals as well as developing software for it
- designing various schemes of wire-connection to a PLC (programmable logic controller) and chose appropriate devices for it (depending on amount of signals and wires)
- developing low-level software for PLC (Siemens, Schneider-Electric) in order to implement the control logic.
- developing high-level server software in order to centralize monitor and control of all connected equipment.
- developing client-server applications to combine equipment from different manufacturers in a single network

Used:
- SCADA
- C#
- Visual Basic
- AutoCAD
- Microsoft Office

2. Lead Design Engineer of DCS
Design the whole system from scratch.
I was managed group of engineers (3-4 persons).

Responsibilities:
- design and developing distributed control systems for nuclear industry
- integrate different parts of manufacture in a single centralized control network
- project management and collaboration with other departments

Thanks a lot