diff --git a/render-app/src/main/java/org/janelia/alignment/loader/S3Handler.java b/render-app/src/main/java/org/janelia/alignment/loader/S3Handler.java
index 139060dd2..1b91a4904 100644
--- a/render-app/src/main/java/org/janelia/alignment/loader/S3Handler.java
+++ b/render-app/src/main/java/org/janelia/alignment/loader/S3Handler.java
@@ -57,9 +57,32 @@ public static S3Handler getSharedInstance()
     private static synchronized void buildInstance() throws IOException {
         if (SHARED_INSTANCE == null) {
             try {
-                final AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
-                final AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withCredentials(credentialsProvider).build();
-                SHARED_INSTANCE = new S3Handler(s3Client);
+                final AmazonS3ClientBuilder clientBuilder = AmazonS3ClientBuilder.standard();
+
+                if (this.s3Parameters.containsKey("aws_secret_access_key") && this.s3Parameters.containsKey("aws_access_key_id")){
+                    final AWSCredentials credentials = new BasicAWSCredentials(this.s3Parameters.get("aws_access_key_id"), this.s3Parameters.get("aws_secret_access_key"));
+                    final AWSCredentialsProvider credentialsProvider = new AWSStaticCredentialsProvider(credentials);
+                    clientBuilder.setCredentials(credentialsProvider);
+                } else if (this.s3Parameters.containsKey("profile_name")) {
+                    final AWSCredentialsProvider credentialsProvider = new ProfileCredentialsProvider(this.s3Parameters.get("profile_name"));
+                    clientBuilder.setCredentials(credentialsProvider);
+                } else {
+                    final AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
+                    clientBuilder.setCredentials(credentialsProvider);
+                }
+
+                String region = (String) this.s3Parameters.getOrDefault("region_name", clientBuilder.getRegion());
+                if (this.s3Parameters.containsKey("endpoint_url")) {
+                    final EndpointConfiguration endpointConfig = new EndpointConfiguration(this.s3Parameters.get("endpoint_url"), region);
+                    final AmazonS3 s3Client = clientBuilder.withEndpointConfiguration(endpointConfig).build();
+                    SHARED_INSTANCE = new S3Handler(s3Client);
+                } else {
+                    final AmazonS3 s3Client = clientBuilder.withRegion(region).build();
+                    SHARED_INSTANCE = new S3Handler(s3Client);
+                }
+                //final AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
+                //final AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withCredentials(credentialsProvider).build();
+                //SHARED_INSTANCE = new S3Handler(s3Client);
             } catch (final AmazonServiceException ase) {
                 throw new IOException("Amazon S3 service failure for error type " + ase.getErrorType(), ase);
             } catch (final AmazonClientException ace) {