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(bio)

Sebastian Strandberg

AI & Software Consultant

Co-founder & CTO, Dua Digital.

Bali · remote worldwide

Swedish-born, Bali-based. Husband and dad. Co-founded Dua Digital in 2021 after a decade shipping Java, Android and web apps for Nordic clients. Today the work splits in two: AI advisory & implementation for Swedish companies and public sector, and the long build engagements below. Happiest as an architect who still writes code. Believe in removal over addition; the second-best software disappears.

(work)

client work

ai advisory & education

VMAB — Västblekinge Miljö AB

AI introduction seminar for the management group of a municipal waste company: cloud vs local models by data sensitivity, NIS2/GDPR/EU AI Act responsibilities in plain language, and live demos in a simulated Microsoft 365 Copilot environment. Converted directly into a follow-up engagement automating the company's consultation and referral process (discovery ongoing).

May 2026

AI för kontoret

AI education program for office workers, sold through the Swedish education platform Republify. Five levels — a searchable handbook with prompt templates and guides, hands-on half-day courses from everyday toolkit to workflows and agents, and a strategy seminar for management groups. No hype, no jargon; every example comes from systems I built and run daily.

2026

agentic products

internal tooling

(stack)

the whole pipeline

platforms & architecture: AWS (ELB, API Gateway, Lambda, RDS) · Azure · Railway · Supabase · container-based deployment (Podman, Docker) · SELinux-hardened Linux · API & service design · headless / MCP-served back-ends · event-driven and batch architectures · legacy-to-modern migrations.

ai / agentic: Prompt and system design · tool use · custom agent harnesses · RAG and knowledge-base integration · MCP server design · local-model experimentation · token and rate-limit economics · reusable skill chains and agentic delivery workflows. Fine-tuning is the one layer I haven’t yet taken to production.

daily working tools: Claude (incl. Claude Code) · OpenAI · Gemini · GitHub Copilot · Cursor · OpenCode · Pi.

delivery: Scrum, agile delivery · customer discovery, offer and contract authoring · architecture decision records and technical documentation · key-account ownership from requirements to handover.

stack experience: TypeScript / JavaScript (Next.js, React, React Native, Node.js) · Python (Django) · Java / Spring Boot · PHP · iOS & Android · SQL / MySQL.

industries: IoT & Home Energy · PropTech / Housing · Hospitality & F&B · E-commerce · iGaming / Web3 · Automotive · Post & Logistics · Public Sector & Municipal

(history)

before dua digital

PT. Dua Digital Solutions — Co-founder & CTO · 2021 – present Swedish-owned Indonesian consultancy. Nordic clients.

Omegapoint Göteborg AB — IT Consultant · 2017 – 2020 Application specialist on the Volvo On Call platform via Wireless Car for the full engagement. Java enterprise, Cucumber; close collaboration with Volvo Connected Cars.

PocketMobile Communications AB — Android Developer · 2015 – 2017 Android developer on custom post-and-logistics solutions for Bring and New Zealand Post (including on-site end-user research in NZ). Also served as Product Owner for a remote product-framework team in Sri Lanka.

University of BoråsFilosofie Kandidat, Systems Architecture programme (Informatics) · 2012 – 2015

(contact)

best way to reach me is email.

sebastian@duadigital.com