Dimitris Sotirakis

Senior Software Engineer

Greece11 yrs 5 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in CI/CD and cloud architecture design.
Proven track record in backend development and API design.
Strong analytical skills with a focus on machine learning.

Stackforce AI infers this person is a SaaS-focused Software Engineer with expertise in CI/CD and backend development.

Contact

Skills

Core Skills

Ci/cdCloud ArchitectureRelease ManagementBackend DevelopmentApi DevelopmentSoftware DevelopmentData Analysis

Other Skills

DockerSecurity ComplianceGitHub AuthenticationFlaky Test AnalysisGrafanaDesign DecisionsDependency ManagementDroneGitHub ActionsArgo WorkflowsRESTful APIsJavaSpringKubernetesAWS

About

Software Engineer with a demonstrated history of working in the information technology and services industry. Skilled in Go, Java and Python. Engineering professional with a BEng & MEng focused in Electrical & Computer Engineering from Aristotle University of Thessaloniki (AUTH). Highly enthusiast in learning new technologies and skills.

Experience

11 yrs 5 mos

Total Experience

2 yrs 2 mos

Average Tenure

5 yrs 4 mos

Current Experience

Grafana labs

5 roles

Staff Software Engineer

Promoted

Nov 2024 – Present · 1 yr 7 mos

Platform Engineering

Senior Software Engineer

Nov 2023 – Nov 2024 · 1 yr

Platform Engineering

Senior Software Engineer

Oct 2022 – Nov 2023 · 1 yr 1 mo

Release Engineering -
Docker images per PR for internal use - reviewing and debugging made so much easier
Decoupled OSS from Enterprise CI/CD builds
Flaky test analysis and resolution - hugely improved our stats, based on our very own Grafana Dashboards ( https://grafana.com/blog/2023/02/09/how-we-reduced-flaky-tests-using-grafana-prometheus-grafana-loki-and-drone-ci/ )
Cloud-first strategy - played vital role in our new architecture around cloud releases by being part of the design decisions and actively working on them
Owned the initiative for proper security image scans to ensure security compliance
Worked on migrating from Github tokens to Github apps for Github authentication

DockerCI/CDCloud ArchitectureSecurity ComplianceGitHub Authentication

Software Engineer

Oct 2021 – Oct 2022 · 1 yr

Release Engineering -
All the things CI/CD (Drone/Github Actions/Argo Workflows)
Vastly improved build times (from 40 minutes down to <10)
CI runs based on certain path changes (ensure that we don't build too much)
Moved away from legacy code for our CI/CD tooling
Rewrote the whole releasing process to split build and publishing phases
Helped in introducing a Release Calendar which was a real game changer for dealing with releases
Made the whole releasing process way easier when it came to dependency complexity

CI/CDDependency ManagementRelease Management

Software Engineer

Feb 2021 – Oct 2021 · 8 mos

Backend Engineering -
Worked on Dashboards API, folders and sub-folders
Worked on migrating every datasource to Dataframes (did some frontend work as well)
Was part of the initial planning for the Athena and Redshift AWS plugins.
Cleaned up a lot of code for our CI/CD pipelines
Created a Plugin CI report service (gRPC), emitting data from all the internal plugin builds to a single storage which could then use Grafana for achieving observability over our plugin builds.

RESTful APIsJavaSpringDockerKubernetesAWS+2

Ticketmaster

Software Engineer

Aug 2019 – Feb 2021 · 1 yr 6 mos · London, United Kingdom

Backend Engineer at International Consolidated Consumer Platform (ICCP), a platform which consolidates the US and EU markets
Responsible for developing and delivering concise, fully functional and fully tested RESTful APIs, written in Java/Spring
Responsible for maintaining the platform, containerising and orchestrating services with Docker and Kubernetes, operating on AWS clusters
Provided on-call support during off-work hours and monitoring sales traffic, using tools like AWS Cloudwatch, Prometheus and Grafana

JavaPythonSimulation AlgorithmsSoftware Development

Ocado technology

Software Engineer

Nov 2018 – Aug 2019 · 9 mos · London, United Kingdom

Software Development Engineer in Simulation Algorithm Development Area
Simulated supply chain flow in discrete time, trying to make sure that these studies can be applied in the real world, using Java and Python
Created dynamic configuration files, now widely used by the whole technology department, being able to configure cases via CI/CD

JavaRMachine LearningStatisticsData AnalysisSoftware Development

Net2grid

Software Engineer / Data Analyst

Sep 2017 – Oct 2018 · 1 yr 1 mo · Thessaloniki, Greece

Software Development Engineer and Data Analyst for Energy Customer Services Platform.
Worked on various projects mainly in Java and R.
Implementation of algorithm that reduced Pattern Recognition phases from 140 seconds to 14.
Worked on probabilistic models, statistics and machine learning for energy consumption forecasts.
Created algorithm for house-appliances model creation from scratch.
Worked on daily reporting methods and RESTful APIs creation.
Worked on migration from early Java versions to new features of Java 8 and 9.

Ots sa

Application Tester / Software Development Engineer

Jan 2015 – Oct 2016 · 1 yr 9 mos · Thessaloniki - Greece

Joined the Software Development Department and worked as an application tester, provided functional testing for OTS SA products using methodology followed by the department.
Worked with IBM's Rational Robot for creating automated test scenarios.
Worked with PowerBuilder, for building desktop applications.
Worked on various platforms, mostly using Java.
Responsible for database structure, using relational databases like MySQL and MSSQL.

Mp balatsinos

System Administrator

Oct 2014 – Jul 2017 · 2 yrs 9 mos · Thessaloniki

Worked on various platforms, such as:
Web development: Moodle for creation of on-line seminars.
Responsible for the scaling of the websites and services running for courses and on-line payments.
Sys-admin: Server administrator for the head office in Thessaloniki, Greece.