
Aleksandar D
HW SW Engineer, Pentester and Business developer
Skills

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Work experience
Viharnis
Self-employed • 6 yrs 10 mos
CEO
Jan 2020 - Present • 6 yrs 4 mos
As founder and CEO of Viharnis (viharnis.se), I lead a digital agency specializing in helping Swedish SMEs and startups accelerate growth, strengthen digital presence, and achieve robust cybersecurity — delivering measurable results like +247% average traffic increase, 4.2x ROAS on Google Ads, 68% of clients doubling turnover, and 100% GDPR compliance peace of mind. Key responsibilities and achievements: Oversee end-to-end strategy and execution across digital marketing (SEO, PPC, content), web/app development (fast, conversion-optimized sites on Shopify/WooCommerce/custom stacks, 96+ PageSpeed scores), IT security & GDPR (full audits, compliance packages, cybersecurity protections against ransomware/phishing, DPO services), and business development (process optimization, financing advice, strategic roadmaps for scaling). Drive projects in high-impact areas including IoT/smart energy solutions (e.g., sensor-based systems reducing energy costs by 43% and saving MSEK annually), e-commerce growth (from 2 to 35 daily orders, 2.8 MSEK turnover in 18 months), and certification support (ISO 27001, SOC 2 for drone/tech startups landing major contracts). Apply 15+ years of deep tech experience (embedded firmware, real-time systems from Husqvarna robotics; public-sector security audits) combined with M.B.A. in Analytical Finance (2022) to provide financially rigorous, ROI-focused advice — blending technical implementation (HW/SW/IoT integration, secure architectures) with C-level strategy, risk modeling, capital allocation, and valuation uplift. Manage cross-functional delivery (analysis → implementation → optimization), ensuring bulletproof security, scalable tech stacks, and direct business alignment for clients across Sweden (and internationally) in e-commerce, smart offices, drones, and more.
Business Analytics
Oct 2023 - Apr 2024 • 6 mos
During this intensive 6-month focused period within Viharnis (my ongoing digital agency), I specialized in business analytics and strategic advisory for small- to medium-sized enterprises across diverse industries — not limited to tech/development companies. This gave me unparalleled, hands-on insight into the real challenges, customer behaviors, and future ambitions of Swedish SMEs. Key responsibilities and achievements: Conducted in-depth business analyses to map current performance, customer journeys, pain points, and untapped opportunities — helping owners gain clarity on what their customers truly value and expect. Developed actionable strategic roadmaps and growth plans that aligned short-term tactics with long-term vision, including process optimization, monetization models, financing strategies, and competitive positioning. Facilitated deep-dive sessions to uncover hidden customer insights and future-oriented thinking, enabling companies to accelerate decision-making, reduce risks, and pursue scalable expansion. Leveraged data-driven approaches (traffic/conversion analytics, ROAS modeling from digital campaigns, customer feedback synthesis) combined with my M.B.A. in Analytical Finance to provide quantitative, ROI-focused recommendations — directly contributing to agency-wide results like +247% average traffic growth, 4.2x ROAS on ads, and 68% of clients doubling turnover. This concentrated role sharpened my ability to translate customer understanding and future vision into practical, profitable strategies for non-technical businesses. It complements my broader Viharnis leadership (Feb 2020–present) and prior technical experience (embedded dev at Husqvarna, cybersecurity audits), allowing me to offer clients holistic support: from secure HW/SW development and pentests to financially rigorous business roadmaps and growth advisory tailored to SMEs/startups in any sector.
Embedded Developer
Husqvarna • Full-time
Aug 2014 - Nov 2017 • 3 yrs 3 mos
At Husqvarna Group — a global leader in outdoor power products and pioneer in robotic lawn mowers (Automower® series) — I developed embedded software and firmware for intelligent, autonomous systems. Focused on real-time embedded control for battery-powered robotic devices, I contributed to features involving sensor integration, navigation algorithms, motor control, power management, and reliable wireless communication in resource-constrained environments. Key responsibilities and achievements: Designed and implemented C/C++ firmware for embedded microcontrollers, ensuring deterministic real-time performance in safety-critical and user-facing applications. Worked on low-level drivers, RTOS integration, and optimization for battery efficiency, obstacle detection, and boundary handling — core technologies behind Husqvarna's market-leading robotic mowers. Collaborated in cross-functional teams (hardware, mechanical, testing) to deliver production-ready code, troubleshoot field issues, and support iterative product improvements during a period of rapid growth in autonomous robotics. Gained deep hands-on experience with embedded systems challenges: power optimization, fault tolerance, secure communication protocols, and integration of sensors/actuators in outdoor/IoT environments. Key responsibilities and achievements: Designed and implemented C/C++ firmware for embedded microcontrollers, ensuring deterministic real-time performance in safety-critical and user-facing applications. Worked on low-level drivers, RTOS integration, and optimization for battery efficiency, obstacle detection, and boundary handling — core technologies behind Husqvarna's market-leading robotic mowers. Collaborated in cross-functional teams (hardware, mechanical, testing) to deliver production-ready code, troubleshoot field issues, and support iterative product improvements during a period of rapid growth in autonomous robotics.