Looking for a job

Daniel Steinvall

@danielsteinvall

Backend and cloud engineer at Nagravision, building AWS services and cutting OpenSearch costs by about $2,000 per month.

Spain

Message

What I'm looking for

I’m open to contract work.

At Nagravision AS, I design and own backend services for secure digital TV delivery used by major European broadcasters and rights holders. I build APIs and event-driven systems with Python, Go, and Java on AWS.

I migrated managed OpenSearch clusters to OpenSearch Serverless across environments and AWS accounts, cutting costs by about $2,000 per month while improving automatic scaling. I also own the social and SSO identity provider integration for a multi-tenant platform.

I built internal TypeScript AWS CDK libraries with secure defaults and reusable constructs, now used by more than 20 services. Their built-in observability includes CloudWatch dashboards and alarms, plus X-Ray tracing.

Outside that work, I built and ran Adostri, an investment analytics platform for Airbnb hosts that reached more than 1,000 users. I’m also building an AI document-analysis startup project that checks invoices against contract terms.

Experience

Work history, roles, and key accomplishments

Current

Cloud Engineer

Current

Nagravision AS

Aug 2026 - Present (3 months)

Migrated managed OpenSearch clusters to OpenSearch Serverless across all environments and AWS accounts, cutting costs by about $2,000 per month while improving automatic scaling.

AWS OpenSearch Amazon OpenSearch Serverless

Current

Engineering Lead

Current

AI Document-Analysis Startup

Aug 2026 - Present (3 months)

Built an LLM document pipeline with a screener and extractor (Mistral OCR, Microsoft Foundry) feeding a deterministic auditor that checks invoices against contract terms. Python (FastAPI) backend on AWS with asynchronous background workers.

Python fastAPI Mistral OCR Azure AI Foundry AWS

Current

Backend Engineer

Current

Nagravision AS

Feb 2026 - Present (9 months)

Own the social/SSO identity provider integration with the Cognito user pool for a multi-tenant platform used by major European broadcasters. Designed least-privilege access across tenants.

Amazon Cognito SSO IAM

Current

AI Engineer

Current

Nagravision AS

Nov 2025 - Present (1 year)

Built a Python extraction service using LLMs on Amazon Bedrock to replace fragile HTML and API-body parsing, ensuring extraction works when page layouts or API responses change.

Python Amazon Bedrock LLM

Current

Software Engineer

Current

Nagravision AS

Oct 2019 - Present (7 years 1 month)

Designed and owned the architecture of backend services for secure digital TV delivery, used by major European broadcasters and rights holders. Built APIs and event-driven systems in Python, Go, and Java with DynamoDB, SQS/SNS, and EventBridge.

Python Go Java Spring Boot AWS Lambda DynamoDB Amazon SQS SNS EventBridge Gitlab Docker AWS ECS Fargate Scrum

Backend & DevOps Engineer

Nagravision AS

Oct 2025 - Mar 2026 (5 months)

Designed and built two new services from scratch with Terraform: a serverless REST API and an event-driven background service that checks and analyzes pirate streams. Defined CloudWatch alarms and monitoring as part of the infrastructure code.

Terraform AWS Serverless Event Driven Architecture Cloudwatch

DevOps Engineer

Nagravision AS

May 2025 - Jun 2025 (1 month)

Built infrastructure as code for isolated per-developer AWS environments, reducing deployment feedback time from 20–25 minutes to 4–7 minutes (about 75% faster).

AWS CDK GitLab CI CD

ML Engineer

Nagravision AS

Oct 2024 - Nov 2024 (1 month)

Deployed an open-source Hugging Face model with S3 and SageMaker background jobs to analyze athletics videos, generating video summaries and highlights automatically.

Python Sagemaker S3 Hugging Face PyTorch TensorFlow

Founder & Full-Stack Developer

Adostri

Feb 2022 - May 2024 (2 years 3 months)

Built and ran an investment analytics platform for Airbnb hosts alone, reaching 1,000+ users. Used Java/Spring, Vue.js, MySQL with spatial indexing, and AWS.

Java Spring Framework Vue.Js MySQL AWS

Backend Developer

Nagravision AS

Oct 2023 - Apr 2024 (6 months)

Built a B2B payment system for DRM license sales integrating AWS Marketplace and Stripe, with asynchronous event flows using SQS/SNS and DynamoDB. Managed CI/CD and monitoring using GitLab, Docker, ECS, and custom Slack/email alerts.