TOPI KETTUNEN

I have extensive background in designing and implementing distributed systems especially in cloud-native world, making distributed computing work in big data environments, and contributed to many commercial and open source projects.

Work Experience

Polar Squad

• DevOps and DataOps Consultant (November 2020 - Present)

  • Working on a data engineering platform where I’m helping the customer in the design and implementation of large-scale distributed stream processing systems.

  • Prior to that, I helped the customer in designing and implementing the customer’s internal Platform as a Service (PaaS) built on top of Kubernetes. This platform spread across multiple different teams inside the customer and was considered a great success.

Independent

• Audio Software Engineer (October 2019 - Present)

  • Hacking on various audio applications, such as VST/AU/AAX plugins and Eurorack modules, whenever I have time from my primary job.

Comiq (now Alten)

• Senior DevOps Consultant (August 2019 - November 2020)

  • Worked designing and implementing distributed systems built on top of Kubernetes and helped many customer’s teams migrating from monolithic architecture to microservices.

  • Worked in design and implementation of RPA platform where we could provide RPA tasks as a service for different applications running either in browser or natively on desktop utilizing multiple cluster on various premises (bare-metal, cloud).

• DevOps Consultant (June 2018 - August 2019)

  • Designed and implemented test automation reporting system to dramatically reduce customer’s manual labour.

Competences

• Development Experience: Systems Engineering, Distributed Systems, Systems Engineering, Networking, Virtualization, Operating Systems, Performance, Compilers, Digital Signal Processing, Real-Time, Audio

• Roles: System/software design, Programming, DevOps/DataOps/MLOps, SRE, RPA

• Programming: C++, C, Go, Python, JavaScript, Java, Haskell, Common Lisp, Rust, x86 Assembly, M68k Assembly, LLVM

• Protocols: TCP/IP, UDP, HTTP, SMTP, DNS

• Information Security: SSH, SSL, TLS, x509 Certificate Management and PKIs, asymmetric and symmetric key cryptography, PGP, authN/authZ, Kerberos (krb5), HSM, TPM

• OS: Linux, OpenBSD, FreeBSD, macOS, Plan9

• Databases: PostgreSQL, Prometheus, SQLite, MongoDB, Redis, MySQL/MariaDB, InfluxDB, Neo4j, CockroachDB

• Cloud: Azure, Kubernetes, Docker, Terraform, AWS, GCP

• Big Data: Kafka, Flink, Spark, Hadoop

• AI: TensorFlow, KubeFlow, PyTorch

• Audio: DAW (Logic Pro, Ableton, Pro Tools), VST2/VST3, AU, AAX, JUCE, MAX, ASIO, LV2

• Languages: Finnish (native), English (fluent), German (limited working proficiency), Swedish (basic), French (basic)

Education

• Bachelor’s degree, Information Technology, Haaga-Helia University of Applied Sciences - Helsinki, Finland (2017-2020)

Military

• Vänrikki/Second Lieutanant, Combat Engineer Platoon Leader (2015)