Hi, I'm Jim!
Bridging the gap between complex infrastructure and modern frontend experiences.
Skills
Technologies and tools I work with
Infrastructure & System Administration
Tools & Technologies
Methodologies
Frontend Development
IoT & Embedded
Networking
Security
Database & Data
AI & Machine Learning
Web Performance
About
I am a Senior System Administrator with a strong Network Engineering background and over 10 years in IT. Currently studying an intensive front-end course at Lexicon in Stockholm (2025-2026), bridging my engineering expertise with modern web technologies. My career spans from entrepreneurship and freelancing to senior roles at Northvolt, where I led complex network infrastructure projects, and extensive system administration at eCiceron handling embedded systems and IoT security. I excel at third-party integrations, system automation, and mentoring team members. I specialize in Linux environments, virtualization, containerization with Docker and Kubernetes, and building robust, scalable solutions. In my spare time, I explore AI applications, home automation systems, and electronic projects.
Work Experience
Senior Network Engineer
- Implemented robust industrial network solutions for large-scale projects.
- I planned on-site infrastructure changes and led advanced troubleshooting with international suppliers and internal teams, ensuring our network strategy met tight deadlines and improved overall operations and documentation.
Technologies & Skills
Senior System Administrator / Network Administrator
- In this multifaceted role, I handled security, systems, and networking for embedded and IoT devices.
- I developed robust administration processes, provided second-line incident response, and advised clients on complex technical issues.
- Additionally, I led the development of internal systems using Docker, Kubernetes, and Proxmox, and served as a Cyber Defense Incident Responder.
Technologies & Skills
Server Technician / Network Engineer
- Led and collaborated with teams on network projects focused on server and network architecture, security, and performance optimization.
- Administered Cisco routers and switches, including configuration, management, and troubleshooting.
- Performed on-site work at datacenters, including racking, cabling, and connecting servers, switches, and customer equipment.
- Developed tools and methods to streamline provisioning of new clients, servers, and solutions.
Technologies & Skills
Event Security / Stage Security Crew
- Managed comprehensive stage and event safety protocols, including crowd control and perimeter security for large-scale events.
- Actively escorted artists and high-profile personnel, ensuring their safety and secure movement within complex event environments.
- Delegated tasks and coordinated efforts of stagehands and other security personnel to maintain smooth operations and rapid response to incidents.
- Responsible for meticulous planning and execution of security logistics for various stages and event areas.
Technologies & Skills
Server Technician / Network Engineer
- Managed and optimized corporate VPNs, ensuring secure and reliable remote connectivity for business environments.
- Administered and maintained dedicated servers and blade server hosting to support critical enterprise applications.
- Oversaw co-location services, coordinating hosted infrastructure and ensuring stable data center operations.
Technologies & Skills
Self-Employed (Freelancer / Entrepreneur)
- Founded a company that provided a wide range of IT services and consult offerings.
- Including maintaining and installations of services and managed hosting to domain registration and management, DNS services, programming services, planning of security solutions, and much more.
Technologies & Skills
Programming Consultant
- While working at Chas, I gained extensive experience as a web developer, collaborating closely with end customers on a daily basis.
- I had the opportunity to work directly with one of Sweden's largest media corporations, as well as prominent media agencies and companies, including DICE and Spotify, among others.
Technologies & Skills
Co-founder / Owner
- As a co-founder of one of Sweden's largest social networks, I helped create a unique online community for youths centered around alternative music and subcultures. We identified a niche that wasn't being served by mainstream platforms at the time and built a thriving community, blog, and forum from the ground up.
Technologies & Skills
Education
Education & Credentials
Intensive Front-end Course
Lexicon, Stockholm - Nov 2025 - Apr 2026
- Modern frontend development: HTML5, semantic markup, responsive design with CSS Grid, Flexbox, and Tailwind.
- Advanced TypeScript: Robust code structure, DOM manipulation, and REST/GraphQL API integration.
- React/Next.js: SPAs, component architecture, state management, routing, and form handling.
- Agile development: Git/GitHub, SCRUM, and agile methodologies.
Licenses
RIPE Database Training Course
RIPE NCC • Issued Sep 2016
RIPE LIR Training Course
RIPE NCC • Issued Sep 2016
IPv6 Certification (Sage)
Hurricane Electric • Issued Jan 2011
References
References from studies, volunteer experience, and work history available upon request.
Language Skills
Projects
JimNelin.com
I needed a good way to showcase my skills, so I developed a modern, bilingual (English/Swedish) personal portfolio and resume website using Next.js 16, React 19, and TypeScript. Implemented database-driven content management with Prisma and PostgreSQL, automated PDF generation with Puppeteer, advanced analytics integration, and a comprehensive admin CMS for seamless content updates. Deployed with in Docker using Coolify self-hosted platform using their CD pipeline, and GitHub Actions for CI.
ArchDNS.com
A personal project to create a highly available, free-of-charge managed DNS service. I single-handedly developed a user-friendly control panel using PHP, Python, and C to interface with a PowerDNS backend. The entire platform was supported by a distributed, multi-node, fault-tolerant network that I designed and built to ensure immediate failover without using anycast, providing robust and secure DNS zone management for both my own domains and external users.
Bit LC Inc.
As one of the founders of Bit LC Inc., I was at the forefront of the emerging cryptocurrency landscape. During a pivotal time for Bitcoin's growth, we provided a suite of essential services, navigating the complex challenges of security, scalability, and adoption for an early user base. This pioneering venture provided deep, firsthand experience in the volatility and immense potential of the early digital currency market, ending abruptly in early 2013 due to a major security incident common in that unregulated era.
These are some of the projects I have worked on. For more details, please contact me.
Volunteering
Lighting Technician & Event Organizer / Manager
Trillah Hillah (Non-profit org.)
Production, design, rigging, and planning of stage lighting as well as ambient lighting in venues during events.
Executive Board Member
TBA Group (Non-profit org.)
TBA Group is a non profit organization acting as an event organizer and education nonprofit in Stockholm, Sweden. We organize private parties and events, workshops, classes and knowledge hub for our members and friends.
Co-Founder / Board Member
Stockholm Makerspace
Stockholm Makerspace is a non-profit organization started by a mixed group of people who shared a vision of establishing a Makerspace in Stockholm. The idea emerged on an online forum, but since April 2012, we have been meeting regularly to collectively spread knowledge about 'The Maker movement' and seek contact with like-minded individuals.
Youth and Confirmation Leader
Church of Sweden Youth
As a youth leader in the Church of Sweden Youth organization, I was responsible for several groups of young people aged 10 to 16. I also participated as a youth leader at confirmation camps and similar retreats.
Get In Touch
I'd love to hear from you. Let's discuss how we can work together.
Contact Information
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