diff --git a/noir-projects/noir-contracts/contracts/lending_contract/src/position.nr b/noir-projects/noir-contracts/contracts/lending_contract/src/position.nr
index 790cda74e38a..d708161133d9 100644
--- a/noir-projects/noir-contracts/contracts/lending_contract/src/position.nr
+++ b/noir-projects/noir-contracts/contracts/lending_contract/src/position.nr
@@ -1,35 +1,9 @@
 use dep::aztec::protocol_types::traits::{Deserialize, Serialize};
+use std::meta::derive;
 
+#[derive(Serialize, Deserialize)]
 pub struct Position {
     collateral: U128,
     static_debt: U128,
     debt: U128,
 }
-
-global POSITION_SERIALIZED_LEN: u32 = 6;
-
-impl Serialize<POSITION_SERIALIZED_LEN> for Position {
-    fn serialize(position: Position) -> [Field; POSITION_SERIALIZED_LEN] {
-        let serialized_collateral = position.collateral.serialize();
-        let serialized_static_debt = position.static_debt.serialize();
-        let serialized_debt = position.debt.serialize();
-        [
-            serialized_collateral[0],
-            serialized_collateral[1],
-            serialized_static_debt[0],
-            serialized_static_debt[1],
-            serialized_debt[0],
-            serialized_debt[1],
-        ]
-    }
-}
-
-impl Deserialize<POSITION_SERIALIZED_LEN> for Position {
-    fn deserialize(fields: [Field; POSITION_SERIALIZED_LEN]) -> Position {
-        Position {
-            collateral: U128::deserialize([fields[0], fields[1]]),
-            static_debt: U128::deserialize([fields[2], fields[3]]),
-            debt: U128::deserialize([fields[4], fields[5]]),
-        }
-    }
-}