Curriculum Vitae

Kalle Hallivuori (Toivonen)

Senior Full-stack Developer, Generalist, Architect

2023-01-26

Overview

Digital developer with decades of technical experience from embedded systems to global clouds. Still in love with programming and encouraging improvement. Years of experience in facilitating technical teams. Common sense focus on business impact and continuity.

Likes to develop products and services with tight teams, short cycles, and robust quality controls. Appreciates evolving diverse strategic portfolios.

Looking for opportunities to:

Have a positive impact on world, especially regarding ecology and climate.
Partake in shared ownership of a startup in a digital development related role.
Take varying gigs as a consultant for the fun and learning.
Work either remotely with flexible hours or in mob programming mode.

Father of three, husband of one, dog owner, 8-bit nostalgist, board gamer, scout leader, social justice dreamer, sole renovator of a wooden house.

Achievements

At Futurice, I helped the company rebuild a continuous small-scale software development service and form a team to provide cloud expertise.
At Solinor, I introduced test and deployment automation and helped the company grow in a variety of positions.
At DEM Solutions I turned a chaotic support/development requirements gathering process into a smooth one.
At a mobile network corporation I radically optimized performance of complex databases.
At Elma Oy I made a successful replacement for a design dead extranet application framework.
At To the Point Oy my scripts were used in many large high-quality new media presentations.
I have autonomated and administered complex production environments at several places.
My customers were happy with my services when I ran my own company.

Areas of expertise

Software architecture, design, patterns, and continuous development.
Relative Databases aka ER and SQL, specialized in PostgreSQL unique features.
Software development cycles, continuous improvement, team work processes and artifacts such as DevOps automation and documentation.
Software quality management including test automation at all levels.
Cloud environment architecture and implementation, IaC especially with Terraform.
Information security management, processes, and reality.

Software development skills

Programming languages		years	context
	Dart	3	Spacent
	TypeScript	3	Spacent
	Java	5	web apps, real estate, radio network optimization
	C#	1	training video web app, postgres driver
	Python	2	enterprise deployment system
	C++	0	pgAdmin
	C	0	pgPool II
Other technical languages		years	context
	Terraform	3	AWS (Spacent); Azure (ML pipeline)
	HTML+CSS+JS	20	Web development
	Bash	25	everywhere
	Perl	10	dark past
	PHP	5	payment systems
	UML	5	here and there
	ER	5	database designs
Relevant infrastructure skills		years	context
	PostgreSQL	10	Wise modeling, fast data transfers and transformations, radical optimizations, scaling, special features
	AWS	5	EC2+RDS-based deployments in eu-west and cn-north; experimenting with lambdas
	Azure	3	multi-AKS ML pipeline; Azure Web Apps with SQL server
	Google cloud	0	Personally preferred cloud because of architectural clarity, GKE
	Containers	5	Some Kubernetes setups, Docker in daily use

Looking forward to learn more

Clojure, Rust, Golang, Google cloud, Machine learning.

Languages

Excellent Finnish; quite sufficient English; sufficient Swedish in writing only.

Work Experience

Software developer and CISO at Spacent, 2020-05 – 2023-02:

Development of Flutter mobile app with TypeScript backend; infosec lead 2021-2022.

Futucare team lead at Futurice Oy, 2015-01 – 2020-04:

Growing a team and developing multitier services in clouds, mainly AWS and Azure.

Continuous Deployment Specialist at Solinor Oy, 2013-08 – 2014-12:

Automating deployments for a large enterprise system.

Software Architect at Solinor Oy, 2012-01 – 2013-07:

Figured out clean code, clear architecture and continuous delivery with a team.

Operations Team Manager at Solinor Oy, 2011-06 – 2011-12:

Oversaw, facilitated and scripted operation of PCI DSS compliant systems.

Senior Software Developer at Solinor Oy, 2010-10 – 2011-05:

Automated testing. Developed a proxy in PHP and CI utilities with Bash and Perl.

Senior Software Engineer/Consultant at Koodaripalvelut.com, 2007-04 – 2010-10:

Java, C#, C, C++ with wxWidgets, C#, Perl, databases and scrum master in multinational, multisite teams.

Senior IT Engineer at Sulake Corporation Oy, 2005-04 – 2007-03:

Postmaster. Unix systems integration, internal service design and development.

J2EE Product Support Engineer at DEM Solutions Oy, 2004-05 – 2005-03:

Created processes and tools for support while managed it and helped develop J2EE systems for Sonera.

Entrepreneur/Linux Consultant as Korpikuu Tmi and Tietopaimen Oy, 1998-06 – 2006-10:

Web server and application provider. Software developer, both alone and in teams.

Software developer at Elma Oyj Electronic Trading, 1998 – 2002:

Extranet solutions with Perl, C and Informix. Rolled own AJAX.

IT architect/remote administrator for Citlembik Ltd, Turkey, 1997 – 2000

Planned and implemented IT for local Internet cafe and book publisher.

Multimedia software developer at To the Point Oy, 1996 – 1998:

Created development speed boosting framework with Macromedia Director Lingo.

Education

Four years of Computer Science at University of Helsinki, 1993-1997. I felt I learned more at work.
Undergraduate of Kallion Lukio, 1989, specialized in theater lighting and sound.

Courses and Certificates

Configuration Management
Agile Coaching and Leadership
Architecture for Scrum Teams (DCI by Coplien)
Sun Certified Java Programmer
Certified Scrum Master

Presentations and software publications

OWASP Helsinki, 2014-25-03: Enhancing security through tight collaboration http://kato.iki.fi/owasp-pci-devops/

Performance feature for PostgreSQL Java and C# drivers: http://kato.iki.fi/sw/db/postgresql/copy/
Perl unit testing library: http://search.cpan.org/~korpiq/Test-CallFlow-0.03/lib/Test/CallFlow.pm
Message exchanger between simultaneous commands: https://github.com/korpiq/shell-message-exchanger
Implemented my son's game design: http://kato.iki.fi/labyrintti/

Kalle Hallivuori leading a coding dojo on test-driven development in 2010.