diff --git a/.github/workflows/deploy-custom-test.yml b/.github/workflows/deploy-custom-test.yml
index ae2073115..ff27037e9 100644
--- a/.github/workflows/deploy-custom-test.yml
+++ b/.github/workflows/deploy-custom-test.yml
@@ -138,6 +138,7 @@ jobs:
             cost_profile: DEFAULT
             job_files: >-
               job_spec/INSAR_ISCE_BURST.yml
+              job_spec/SLIMSAR_TDBP.yml
             instance_types: r6id.xlarge,r6id.2xlarge,r6id.4xlarge,r6id.8xlarge,r6idn.xlarge,r6idn.2xlarge,r6idn.4xlarge,r6idn.8xlarge
             default_max_vcpus: 640
             expanded_max_vcpus: 640
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b984027be..c3174fa25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Added a `model_context_length` parameter to the `OPERA_DIST_S1` job specification.
 - Added the custom hyp3-slimsar-test deployment
+- Added new job_spec for slimsar time-domain backprojection processing
 
 ### Changed
 - Increased the maximum `stride_for_norm_param_estimation` to 32 from 16 for the `OPERA_DIST_S1` job specification to handle models with a larger input size.
diff --git a/job_spec/SLIMSAR_TDBP.yml b/job_spec/SLIMSAR_TDBP.yml
new file mode 100644
index 000000000..5748391d2
--- /dev/null
+++ b/job_spec/SLIMSAR_TDBP.yml
@@ -0,0 +1,73 @@
+SLIMSAR_TDBP:
+  required_parameters:
+    - data_fps
+    - nav_fp
+    - dem_fp
+  parameters:
+    data_fps:
+      api_schema:
+        type: array
+        minItems: 1
+        maxItems: 10
+        example:
+          - s3://asf-bucket/slimsar/SAR_11072025_110035.sar
+        items:
+          description: Path to uncompressed slimsar echoes file on s3 bucket
+          type: string
+          pattern: "^s3://[a-z0-9.-]+(/[^/]+)*/[^/]+\\.sar$"
+          example: s3://asf-frostbyte/slimsar/SAR_11072025_110035.sar
+    nav_fp:
+      api_schema:
+        type: string
+        example: s3://asf-bucket/slimsar/NMZT23520001E_100_proj.dat
+        pattern:  "^s3://[a-z0-9.-]+(/[^/]+)*/[^/]+\\.dat$"
+        description: Path to post-processed nav .dat file on s3 bucket
+    dem_fp:
+      api_schema:
+        type: string
+        example: s3://asf-bucket/slimsar/repeat_sub.tif
+        pattern:  "^s3://[a-z0-9.-]+(/[^/]+)*/[^/]+\\.tif$"
+        description: Path to DEM file on S3 bucket
+    pols:
+      api_schema:
+        type: array
+        minItems: 1
+        maxItems: 4
+        example:
+          - VV
+          - VH
+          - HV
+          - HH
+        default: [VV, VH, HV, HH]
+        items:
+          description: Polarization to process
+          maxLength: 2
+          minLength: 2
+  validators: []
+  cost_profiles:
+    DEFAULT:
+      cost: 1.0
+  steps:
+    - name: ''
+      image: 242399506617.dkr.ecr.us-west-2.amazonaws.com/slimsar-test
+      command:
+        - --data_fps
+        - Ref::data_fps
+        - --nav_fp
+        - Ref::nav_fp
+        - --dem_fp
+        - Ref::dem_fp
+        - --pols
+        - Ref:pols
+        - --bucket
+        - '!Ref Bucket'
+        - --bucket_prefix
+        - Ref::job_id
+      timeout: 126000  # 35 hours
+      compute_environment: SlimSAR
+      vcpu: 1
+      gpu: 1
+      memory: 30500
+      secrets:
+        - EARTHDATA_USERNAME
+        - EARTHDATA_PASSWORD
\ No newline at end of file
diff --git a/job_spec/config/compute_environments.yml b/job_spec/config/compute_environments.yml
index dfc3460bd..46024b14f 100644
--- a/job_spec/config/compute_environments.yml
+++ b/job_spec/config/compute_environments.yml
@@ -27,3 +27,6 @@ compute_environments:
   ItsLiveMeta:
     instance_types: r6id.xlarge,r6id.2xlarge,r6id.4xlarge,r6id.8xlarge,r6idn.xlarge,r6idn.2xlarge,r6idn.4xlarge,r6idn.8xlarge
     ami_id: ami-0aece254fc7c27a77  # /aws/service/ecs/optimized-ami/amazon-linux-2023/recommended/image_id
+  SlimSAR:
+    instance_types: g4dn.2xlarge,g4dn.4xlarge,g4dn.6xlarge,
+    allocation_type: EC2
\ No newline at end of file