diff --git a/src/brizo/Brizo.ts b/src/brizo/Brizo.ts
index 77aa4cb..083cfd8 100644
--- a/src/brizo/Brizo.ts
+++ b/src/brizo/Brizo.ts
@@ -134,13 +134,13 @@ export class Brizo extends Instantiable {
 
         // construct Brizo URL
         let url = serviceEndpoint
-        url += `&signature=${signature}`
+        url += `?signature=${signature}`
         url += `&consumerAddress=${address}`
         url += `&serviceAgreementId=${noZeroX(serviceAgreementId)}`
-        url += algorithmDid && `&algorithmDid=${algorithmDid}`
-        url += algorithmMeta && `&algorithmMeta=${algorithmMeta}`
-        url += output && `&output=${output}`
-        url += jobId && `&jobId=${jobId}`
+        url += algorithmDid && `&algorithmDid=${algorithmDid}` || ''
+        url += algorithmMeta && `&algorithmMeta=${algorithmMeta}` || ''
+        url += output && `&output=${JSON.stringify(output)}` || ''
+        url += jobId && `&jobId=${jobId}` || ''
 
         // switch fetch method
         let fetch
diff --git a/src/ocean/OceanCompute.ts b/src/ocean/OceanCompute.ts
index 8782dbd..921fb77 100644
--- a/src/ocean/OceanCompute.ts
+++ b/src/ocean/OceanCompute.ts
@@ -6,16 +6,20 @@ import { SubscribablePromise } from '../utils'
 import { OrderProgressStep } from './utils/ServiceUtils'
 import { DID } from '../squid'
 
-export enum ComputeJobStatus {
-    Started,
-    ConfiguringVolumes,
-    RunningAlgorithm,
-    FilteringResults,
-    PublishingResult,
-    Completed,
-    Stopped,
-    Deleted
-}
+
+export const ComputeJobStatus = Object.freeze({
+    Started: 10,
+    ConfiguringVolumes: 20,
+    ProvisioningSuccess: 30,
+    DataProvisioningFailed: 31,
+    AlgorithmProvisioningFailed: 32,
+    RunningAlgorithm: 40,
+    FilteringResults: 50,
+    PublishingResult: 60,
+    Completed: 70,
+    Stopped: 80,
+    Deleted: 90
+})
 
 export interface Output {
     publishAlgorithmLog?: boolean
@@ -36,7 +40,7 @@ export interface ComputeJob {
     jobId: string
     dateCreated: string
     dateFinished: string
-    status: ComputeJobStatus
+    status: number
     statusText: string
     algorithmLogUrl: string
     resultsUrls: string[]
@@ -133,7 +137,7 @@ export class OceanCompute extends Instantiable {
         output?: Output
     ): Promise<ComputeJob> {
         output = this.checkOutput(consumerAccount, output)
-        const status = await this.ocean.brizo.compute(
+        const computeJobsList = await this.ocean.brizo.compute(
             'post',
             agreementId,
             consumerAccount,
@@ -143,7 +147,7 @@ export class OceanCompute extends Instantiable {
             output
         )
 
-        return status as ComputeJob
+        return computeJobsList[0] as ComputeJob
     }
 
     /**
@@ -158,7 +162,7 @@ export class OceanCompute extends Instantiable {
         agreementId: string,
         jobId: string
     ): Promise<ComputeJob> {
-        const status = await this.ocean.brizo.compute(
+        const computeJobsList = await this.ocean.brizo.compute(
             'put',
             agreementId,
             consumerAccount,
@@ -167,7 +171,7 @@ export class OceanCompute extends Instantiable {
             jobId
         )
 
-        return status as ComputeJob
+        return computeJobsList[0] as ComputeJob
     }
 
     /**
@@ -182,7 +186,7 @@ export class OceanCompute extends Instantiable {
         agreementId: string,
         jobId: string
     ): Promise<ComputeJob> {
-        const status = await this.ocean.brizo.compute(
+        const computeJobsList = await this.ocean.brizo.compute(
             'delete',
             agreementId,
             consumerAccount,
@@ -191,7 +195,7 @@ export class OceanCompute extends Instantiable {
             jobId
         )
 
-        return status as ComputeJob
+        return computeJobsList[0] as ComputeJob
     }
 
     /**
@@ -223,7 +227,7 @@ export class OceanCompute extends Instantiable {
         agreementId?: string,
         jobId?: string
     ): Promise<ComputeJob[]> {
-        const status = await this.ocean.brizo.compute(
+        const computeJobsList = await this.ocean.brizo.compute(
             'get',
             agreementId,
             consumerAccount,
@@ -232,7 +236,7 @@ export class OceanCompute extends Instantiable {
             jobId
         )
 
-        return status as ComputeJob[]
+        return computeJobsList as ComputeJob[]
     }
 
     /**
@@ -247,7 +251,7 @@ export class OceanCompute extends Instantiable {
         agreementId: string,
         jobId: string
     ): Promise<ComputeJob>  {
-        const status = await this.ocean.brizo.compute(
+        const computeJobsList = await this.ocean.brizo.compute(
             'get',
             agreementId,
             consumerAccount,
@@ -256,6 +260,6 @@ export class OceanCompute extends Instantiable {
             jobId
         )
 
-        return status as ComputeJob
+        return computeJobsList[0] as ComputeJob
     }
 }