Daniel Boesswetter - Senior Cloud Consultant and Developer

Recommended expert

Berlin, Germany

Experience

Feb 2025 - Present

1 year

Berlin, Germany

Senior Cloud Consultant and Developer

SDIA/Leitmotiv

Consulting an NGO in the field of data center sustainability in publicly funded projects (BMUKN with NADIKI and Federal Environment Agency with SIEC)
Development of Python APIs and web applications, deployment on AWS/ECS with Terraform
Collecting power consumption metrics for servers, CPUs, GPUs running AI workloads
Technologies used: AWS, EC2, ECS, Fargate, CloudMap, VPC, Route53, Lambda, EventBridge, CodeBuild/CodePipeline/CodeDeploy, Terraform, Docker, Linux, Bash scripting, Python, Flask, SQLAlchemy, SQL, MariaDB, InfluxDB, Telegraf, Prometheus, Zabbix, Kubernetes, Letsencrypt, certificate management

Sep 2024 - Sep 2024

1 month

Berlin, Germany

Trainer

50Hertz Transmission GmbH

Preparing and conducting a two-day hands-on workshop on YAML, Jinja2 and Terraform for the operations team (~10 attendees)
Technologies used: Terraform, Ansible

Apr 2024 - Present

1 year 10 months

Berlin, Germany

Lecturer

University of Applied Sciences for Technology and Economics

Holding the lecture and labs for “Cloud and Parallel Computing” for master students in computer science in engineering
Creating slides and learning materials from scratch
Using the AWS Academy program for the labs
Technologies used: AWS, EC2, ELB, Autoscaling, S3, VPC, RDS, Lambda, Terraform, Docker, Linux, Bash scripting, Python, Flask, SQLAlchemy, SQL, MariaDB, Kubernetes

Feb 2024 - Present

2 years

Berlin, Germany

AWS Consultant

sellysolutions Servicegesellschaft mbH

Coaching and training the team for migration into the cloud
Reviewing solutions delivered by third parties
Technologies used: AWS, EC2, ELB, ECS, EKS, Fargate, CloudMap, S3, VPC, Route53, SQS/SNS, CodeBuild/CodePipeline/CodeDeploy, Transfer Family (AS2), Terraform, Docker, Linux, Bash scripting, MariaDB, Oracle, Kubernetes, Apache, haproxy, certificate management

Sep 2022 - Dec 2023

1 year 4 months

Berlin, Germany

Senior SRE

SevenOne Media / Pro7 Sat1

Senior Site Reliability Engineer in a complex AWS landscape with thousands of VMs and containers
Devising and implementing a concept to improve the build and deploy process with dynamic environments for development branches (GitHub Actions, AWS CodePipelines/CodeBuild/CodeDeploy, ECS, Docker, Terraform)
Driving initiative to improve runtime performance of a high-volume NodeJS web application for serving TV ads (bottleneck analysis during TV events)
Increasing visibility by introducing Datadog, Prometheus/Grafana and PagerDuty
Enhancing scalability, security and maintainability: managed scaling, Fargate, private networks, AWSVPC, Graviton instances, IAM and security group cleanup, Terraform code refactoring
General consulting for microservice architecture introduction
Technologies used: AWS, EC2, ELB, Autoscaling, ECS, Fargate, S3, VPC, RDS, Route53, Lambda, CodeBuild/CodePipeline/CodeDeploy, Terraform, Docker, Linux, Bash scripting, JavaScript/NodeJS, MySQL, Datadog

Jun 2022 - Jun 2022

1 month

Hamburg, Germany

Database Expert

digmed GmbH

Evaluating AWS Redshift for an analytical workload in the company’s product
Technologies used: AWS, Redshift, SQL, MySQL

Apr 2022 - Dec 2023

1 year 9 months

Hamburg, Germany

Senior Engineer

Lufthansa Industry Solutions

Senior Java Developer for a critical workflow management application for component sourcing during aircraft maintenance at Lufthansa Technik
Feature development and refactoring in Java 8, JBoss EAP 7.2, web services and Oracle database
Updating Hibernate Search 5 to 6 to enable ElasticSearch cluster upgrade
Designing and implementing interfaces to other systems (e.g. NLP server for automatic email processing)
Preparing releases, documenting required changes and collaborating with operations for flawless deployments
Senior DevOps Engineer in a different project: improving and operating a GCP-based AI platform running RapidMiner (GCP, Terraform, Autoscaling)
Technologies used: Terraform, Linux, Bash scripting, Java, SQL, Oracle, ElasticSearch, Hibernate Search, Kubernetes, JBoss, Jenkins, Maven, GCP (GCE)

Jun 2021 - Mar 2022

10 months

Germany

AWS Expert

Testo SE & Co KGAA

Refactoring microservices into a new AWS setup and migrating productive services with minimal downtime
Configuring a multi-account AWS landscape (ECS, ALB/NLB, Route53, VPC peering, RDS, Lambda)
Implementing IaC pipelines with Terraform and Jenkins, monitoring with Datadog
Deploying a stateful application (VerneMQ) on ECS
Automating cross-account MySQL database migration
Technologies used: AWS, EC2, ELB, ECS, Fargate, S3, VPC, RDS, Route53, Lambda, SQS/SNS, EventBridge, Terraform, Docker, Linux, Bash scripting, SQL, MySQL, PostgreSQL, Datadog, Jenkins

May 2021 - Jun 2021

2 months

Berlin, Germany

Head of IT Ops

Digital Seals Supercomputing GmbH

Benchmarking different environments (cloud vs bare metal) for Chia plotting performance
Developing an orchestration system using RabbitMQ and Python to distribute plot jobs in a hybrid environment
Technologies used: AWS, Docker, Linux, Bash scripting, Python, Prometheus, Ansible

Sep 2020 - Aug 2021

1 year

Berlin, Germany

Senior DevOps Engineer

Magix Software GmbH

Consolidating workloads from data centers and cloud providers into Microsoft Azure for multiple websites
Technologies used: Azure VMs, load balancers, application gateways, app service, AKS, Azure SQL for MariaDB, MySQL, PostgreSQL, storage accounts, VNets, AWS DMS
Automating Azure setup with Terraform, Ansible and Azure DevOps
Significantly reducing cloud spending and solving complex network problems
Technologies used: AWS, EC2, ELB, S3, VPC, Terraform, Docker, Linux, Bash scripting, SQL, MariaDB, MySQL, PostgreSQL, ElasticSearch, Ansible, Kubernetes, Apache, JBoss, Tomcat, Azure

Apr 2020 - Sep 2020

6 months

Germany

AWS Expert

Testo SE & Co KGAA

Refactoring microservices into a new AWS setup and migrating productive services with minimal downtime
Configuring a multi-account AWS landscape (ECS, ALB/NLB, Route53, VPC peering, RDS, Lambda)
Implementing IaC pipelines with Terraform and Jenkins, monitoring with Datadog
Deploying a stateful application (VerneMQ) on ECS
Automating cross-account MySQL database migration
Technologies used: AWS, EC2, ELB, ECS, Fargate, S3, VPC, RDS, Route53, Lambda, SQS/SNS, EventBridge, Terraform, Docker, Linux, Bash scripting, SQL, MySQL, PostgreSQL, Datadog, Jenkins

Aug 2019 - Dec 2019

5 months

Zürich, Switzerland

Consultant

Helio AG

Automating the GCP setup with Terraform
Technologies used: Terraform, Linux, Bash scripting, GCP (GCE)

Feb 2018 - Jan 2020

2 years

Berlin, Germany

CTO

METABUILD GmbH

Coordinating software development in an international distributed team (~10)
Establishing development best practices: git, Trello, stand-ups, coaching
Devising software architecture: VueJS SPA, Backend-as-a-Service, NodeJS microservices, Matlab app and compute cluster
Development in JavaScript (NodeJS) and Matlab
Creating IT infrastructure with Terraform (AWS, ProfitBricks, Open Telekom Cloud) and Ansible, setting up CI for Docker containers

Feb 2017 - Dec 2019

2 years 11 months

Berlin, Germany

Senior Operations Engineer

nugg.ad / Zalando Marketing Services

Maintaining a cluster of 60 physical servers with 100 VMs and AWS resources for a predictive behavioral targeting platform (up to 25k req/s)
Key achievements: performance tuning Ruby GC, increased transparency with metrics, enabling on-prem to cloud scale-out, cost reductions in AWS and DNS, rewriting Map/Reduce to Hive, authoring a 50+ page operations manual, initiating migration roadmap to Zalando AWS
Technologies used: Xen, Hadoop (CDH 5.5 w/ Mesos & Spark), Riak, Aerospike, Pacemaker/corosync/heartbeat, Redis, MySQL, Ansible, Terraform, Debian Linux, Icinga2, Graphite/Grafana/statsd/logstash, OpenNebula, F5 BigIP, Juniper ScreenOS, certificate management

Jun 2010 - Dec 2015

5 years 7 months

Berlin, Germany

Director of IT Operations

Fyber (formerly SponsorPay)

Staffing and leading an international team of up to 14 engineers
Coordinating contractors and managing budgets
Evaluating CDNs, DNS, monitoring tools and cloud providers
Technical design and project management for a multi-million EUR datacenter move (2015)
Driving scalability and reliability initiatives
Designing and operating HA MySQL/Percona DB (10TB data, 15k QPS)
Managing up to 200 Linux servers, Apache Kafka, Hadoop and ELK clusters
Introducing EXASOL and Pentaho data warehouse
Automation with shell scripts, Puppet and Chef
Monitoring with Nagios and Graphite
Daily management with Kanban and ITIL, reporting to CTO

Jan 2009 - Dec 2020

12 years

Germany

Freelance Author

Heise Verlag

Writing over 10 articles on databases and container technology for iX magazine (35k+ copies monthly)

Apr 2007 - May 2010

3 years 2 months

Berlin, Germany

Research Associate

Free University of Berlin

Research and teaching in relational database technology
Publishing scientific papers and magazine articles on data-warehouse technologies
Conducting tutorials and a summer course on Linux shell scripting
Implementing research prototypes in C and Java (storage layer, B+-trees, type systems, sorting algorithms)
Supervising four diploma theses
Presenting a paper at ADBIS 2009 in Riga

Sep 2005 - Apr 2007

1 year 8 months

Berlin, Germany

Software Developer

Free University of Berlin

Designing and implementing a web portal based on SAP R/3 (BSL, ABAP)
Managing a team of up to 3 developers and consultants
Developing customer-facing web applications (enrollment, grading, timetable) and reports
Architecting mapping of business logic onto SAP data structures

Nov 2004 - Aug 2005

10 months

Berlin, Germany

Teamleader Datacenter Development

Jamba! GmbH (Verisign Inc.)

Maintaining and extending a data center with ~40 Linux, Solaris, Windows, Apache httpd and Oracle servers for the iLove platform
Managing external data center provider (Telefonica Deutschland) and internal staff

Mar 1998 - Apr 2003

5 years 2 months

Munich, Germany

Head of Software Development

PEPPERMIND

Designing and implementing complex websites with Perl, PHP, MySQL, PostgreSQL, Oracle and Infopark NPS4
Developing and operating SMS applications for debitel
Managing a development team of 3–7
Project management and coordination
Acting as technical contact for key customers

Jan 1997 - Dec 1998

2 years

Munich, Germany

Freelance Software Developer

Marketmakers GmbH

Participating in development of a Perl/Oracle e-commerce framework
Developing an online auction for Metro Group (never went live)

Jan 1996 - Oct 1996

10 months

Munich, Germany

Working Student

Dornier Satellitensysteme (DASA DSS)

Developing a low-level graphics device driver for a CL GD5428 VGA adapter in C
Developing intranet applications

Summary

Seasoned software engineering expert with an academic background in computer science and almost three decades of experience in developing and operating in high-volume Linux environments. Held positions ranging from individual contributor to hands-on management in companies from startup to enterprise. Recently focused on Amazon Web Services (certified AWS Solutions Architect Associate), containerization, Terraform, CI/CD, Python in agile teams.

Languages

German

Native

English

Advanced

Education

Nov 1996 - Oct 2004

Technical University of Munich (TUM)

Diploma, minor subject: Medical Informatics · Computer Science · Munich, Germany

Nov 1995 - Oct 1996

Rosenheim University of Applied Science

Intermediate Diploma · Computer Science · Rosenheim, Germany

Certifications & licenses

AWS Certified Solutions Architect – Associate

AWS

Etengo Gold Partner

Certified Kubernetes Administrator

The Linux Foundation

Big Data Analysis with Scala and Spark

École Polytechnique Fédérale de Lausanne

Rails with Active Record and Action Pack

Johns Hopkins University

Machine Learning

Stanford University

OpenHPI Course “Parallel Programming Concepts”

IHK Course “Basic Knowledge for Trainers”

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Experience

Senior Cloud Consultant and Developer

SDIA/Leitmotiv

Trainer

50Hertz Transmission GmbH

Lecturer

University of Applied Sciences for Technology and Economics

AWS Consultant

sellysolutions Servicegesellschaft mbH

Senior SRE

SevenOne Media / Pro7 Sat1

Database Expert

digmed GmbH

Senior Engineer

Lufthansa Industry Solutions

AWS Expert

Testo SE & Co KGAA

Head of IT Ops

Digital Seals Supercomputing GmbH

Senior DevOps Engineer

Magix Software GmbH

AWS Expert

Testo SE & Co KGAA

Consultant

Helio AG

CTO

METABUILD GmbH

Senior Operations Engineer

nugg.ad / Zalando Marketing Services

Director of IT Operations

Fyber (formerly SponsorPay)

Freelance Author

Heise Verlag

Research Associate

Free University of Berlin

Software Developer

Free University of Berlin

Teamleader Datacenter Development

Jamba! GmbH (Verisign Inc.)

Head of Software Development

PEPPERMIND

Freelance Software Developer

Marketmakers GmbH

Working Student

Dornier Satellitensysteme (DASA DSS)

Summary

Languages

Education

Technical University of Munich (TUM)

Diploma, minor subject: Medical Informatics · Computer Science · Munich, Germany

Rosenheim University of Applied Science

Intermediate Diploma · Computer Science · Rosenheim, Germany

Certifications & licenses

AWS Certified Solutions Architect – Associate

AWS

Etengo Gold Partner

Certified Kubernetes Administrator

The Linux Foundation

Big Data Analysis with Scala and Spark

École Polytechnique Fédérale de Lausanne

Rails with Active Record and Action Pack

Johns Hopkins University

Machine Learning

Stanford University

OpenHPI Course “Parallel Programming Concepts”

IHK Course “Basic Knowledge for Trainers”

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