Altium RF PCB Design

I need an experienced Altium RF PCB designer for TWO related AGC modules (shared libraries/rules where possible): 1) Full Altium schematic for each board (from our frozen RF packages) 2) RF PCB layout for each board 3) Fab-ready outputs for each (Gerbers, stackup, BOM, assembly drawings) Architecture/BOM already frozen. Job is capture + RF-aware layout only — do not re-architect. PRODUCT 1 — UHF AGC (first priority) - Band: 220–520 MHz - Pin −90…−60 dBm → Pout −25 dBm nominal (−30…−20 window) - 5 V, Idd 140 mA typ / 170 mA max - Size: 25×25 mm, castellated, no SMA - Chain: RLM-33+ → LC BPF → 3× GALI-39+ → HMC1119 → −20 dB tap - Detector/AGC: AD8317 + STM32G031 (SPI to HMC1119) - Stack: 4-layer RF (e.g. RO4350/hybrid — propose and justify) PRODUCT 2 — C-band AGC (SAPTECH-AGC-003) - Band: 4.4–5.0 GHz - Pin −80…−60 dBm → Pout −25 dBm nominal (−30…−20 window) - 5 V, Idd 200 mA typ / 230 mA max - Size: ~35×35 mm SMT module (castellated / agreed edge launch; no SMA preferred) - Chain: RLM-63-2W+ → 3× Qorvo QPL9503 → HMC1119 → −20 dB tap - Detector/AGC: AD8317 + STM32G031 (same digital AGC pattern) - Stack: Rogers RO4003C / RO4350 class 4-layer — propose and justify - Do NOT use: HMC637-as-LNA, PE4312, GALI-84+ as required stage SHARED - 50 Ω RF routing, via fencing/keepouts, proper RF bias/decoupling - Native Altium source (not Gerbers-only; not EasyEDA-only) - One designer for both boards preferred DELIVERABLES (per board) - .SchDoc / .PcbDoc + libraries, PDF schematic - Gerbers + drill + fab notes + controlled-impedance stackup - Assembly drawing + BOM with MPNs - DRC/ERC clean + short RF layout notes MUST-HAVE - Real RF board portfolio (photos/Gerbers), not only IoT/Arduino/Wi-Fi - Discrete RF chain experience; ideally UHF and/or 4–6 GHz - Impedance-controlled multilayer Altium PROCESS 1) Paid screen task first (small fixed fee, 3–5 days) on UHF only: stackup + 50 Ω width; floorplan on 25×25; draft castellation map. Paid even if we stop. 2) Milestones: UHF schematic → UHF layout → C-band schematic → C-band layout → both Gerber packages 3) Milestone payments on acceptance 4) NDA + IP to client before full packages shared 5) Our RF engineer reviews PDF/ZIP exports OUT OF SCOPE: architecture changes, firmware coding, buying parts, contacting our end customer. TO APPLY: 2–3 RF board examples (band+year), Altium version, approach + timeline for both boards, start date. Discuss commercial terms privately after shortlisting — do not put a price in the public proposal text. Budget: GBP 750–1500