Recommended expert

Daniel Boesswetter

Senior Cloud Consultant and Developer

Daniel Boesswetter
Berlin, Germany

Experience

Feb 2025 - Present
1 year 2 months
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
2 years
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 2 months
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

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (19 years), Media and Entertainment (13 years), Advertising (8.5 years), Education (6.5 years), Retail (2 years), and Aerospace and Defense (1.5 years).

Information Technology
Media and Entertainment
Advertising
Education
Retail
Aerospace and Defense

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (27 years), Research and Development (15.5 years), Project Management (12.5 years), Operations (11.5 years), Product Development (11.5 years), and Business Intelligence (3 years).

Information Technology
Research and Development
Project Management
Operations
Product Development
Business Intelligence

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”

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Daniel based?

Daniel is based in Berlin, Germany.

What languages does Daniel speak?

Daniel speaks the following languages: German (Native), English (Advanced).

How many years of experience does Daniel have?

Daniel has at least 28 years of experience. During this time, Daniel has worked in at least 21 different roles and for 20 different companies. The average length of individual experience is 1 year and 3 months. Note that Daniel may not have shared all experience and actually has more experience.

What roles would Daniel be best suited for?

Based on recent experience, Daniel would be well-suited for roles such as: Senior Cloud Consultant and Developer, Trainer, Lecturer.

What is Daniel's latest experience?

Daniel's most recent position is Senior Cloud Consultant and Developer at SDIA/Leitmotiv.

What companies has Daniel worked for in recent years?

In recent years, Daniel has worked for SDIA/Leitmotiv, 50Hertz Transmission GmbH, University of Applied Sciences for Technology and Economics, sellysolutions Servicegesellschaft mbH, and SevenOne Media / Pro7 Sat1.

Which industries is Daniel most experienced in?

Daniel is most experienced in industries like Information Technology (IT), Media, Entertainment and Publishing, and Advertising. Daniel also has some experience in Education, Retail, and Aerospace and Defense.

Which business areas is Daniel most experienced in?

Daniel is most experienced in business areas like Information Technology (IT), Research and Development (R&D), and Project Management. Daniel also has some experience in Operations, Product Development, and Business Intelligence.

Which industries has Daniel worked in recently?

Daniel has recently worked in industries like Information Technology (IT), Education, and Aerospace and Defense.

Which business areas has Daniel worked in recently?

Daniel has recently worked in business areas like Information Technology (IT), Operations, and Research and Development (R&D).

What is Daniel's education?

Daniel attended Technical University of Munich (TUM) for Computer Science.

Does Daniel have any certificates?

Daniel has 8 certificates. Among them, these include: AWS Certified Solutions Architect – Associate, Etengo Gold Partner, and Certified Kubernetes Administrator.

What is the availability of Daniel?

Daniel is immediately available for suitable projects.

What is the rate of Daniel?

Daniel's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Daniel?

To hire Daniel, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
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Market avg: 820-980 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.