Dominik Bullo
Senior Software Engineer · Energy Infrastructure
dominik@bullo.sk +46 723 637 500 Täby, Stockholm, Sweden
bullo.sk QR code
Profile

The energy grid is changing faster than most software can keep up with. I build the systems that keep pace — SCADA platforms, energy management systems, BESS integrations, and trading pipelines across Nordic power markets.

Good infrastructure is the same problem regardless of domain: clear boundaries, reliable failure modes, and systems the next engineer can understand and change. I hold that standard in a sector where the cost of getting it wrong is a missed market activation or a grid penalty.

I have worked at every level — as a founder building from zero, as a tech lead owning delivery and architecture, and as a hands-on engineer when the problem demands it. That breadth is intentional: I take engagements where I can own the hard parts.

I operate in environments where reliability is not a KPI: it is a grid obligation.

Seeking

Senior Software Engineer · Technical Lead · Principal Engineer · Platform Architect. Stockholm-based, EU citizen, no relocation or visa sponsorship required.

Domain Expertise
BESSSCADA / EMS / PLCIEC 61850FCR / mFRRNord PoolAncillary services
Technologies
PythonFastAPIDjangoPostgreSQLDockerKubernetesGCPAWSTerraformTimescaleSentryGitHub ActionsVue.jsTypeScript
Experience
Software Engineer
Ingrid
  • Built an internal prequalification tool that automated SvK submission validation across 10 sites — cut a multi-week manual process to hours and removed a recurring bottleneck before every market qualification.
  • Tech lead on 8-person cross-functional delivery of a multi-asset operations platform (BESS, wind, hydro): shipped in 2 months against a 4-month plan with expanded scope, enabling new asset types to be onboarded through config alone.
  • Standardised integration patterns and hardened site configuration: reduced onboarding a new asset type from weeks of custom engineering to a configuration change.
  • Architecting event-driven microservices (Python / TypeScript) on GCP — service contracts, CI/CD pipelines, and code review standards shared across cross-functional teams.
  • Translating platform architecture decisions into concrete software designs and delivery patterns reused across cross-functional teams.
Backend Developer (Consultant)
Stockholm Exergi
  • Built backend systems connecting a 40 MW BESS fleet to live FCR and mFRR markets at Stockholm's largest district heating operator — edge telemetry ingestion through to market dispatch and settlement.
  • Designed real-time telemetry ingestion pipeline from BESS and heating infrastructure edge devices: built for reliability under continuous market activation.
  • Designed scalable delivery platform and controller architecture for BESS assets from scratch — event-driven, cloud-hosted, built to add asset types without re-engineering the core.
Backend Developer
Helicon Technologies
  • Designed and built a grid-qualified EMS managing 40 MW across FCR and mFRR — owned the full prequalification lifecycle from SCADA integration to successful SvK grid qualification.
  • Drove SvK prequalification end-to-end: SCADA integration, test validation, regulatory submission — asset qualified and revenue-generating.
  • Designed PPC controller architecture and market interface layer: connects BESS assets to real-time frequency markets with no manual intervention at activation time.
Tech Lead & Full-Stack Developer
Transportly
  • Led 5 engineers (no prior SPA experience) from zero to first paying customer in 3 months — 4Shipper, a freight TMS that onboarded ~100 clients across automotive and defence.
  • Established frontend architecture, code review standards, and CI/CD from day one — upskilled the team to production-quality Vue.js with no prior SPA background.
  • Drove full-stack architecture: cloud-hosted, event-driven, designed for scale from the first commit.
CEO & Founder
DeOutSol
  • Founded and operated a software studio: delivered 10–15 projects for ~10 clients across Nordic and Central European markets.
  • Team of 1–3 engineers plus subcontractors — full ownership from scoping through delivery, across logistics, healthcare, and real estate.
  • End-to-end ownership: product definition, technical architecture, client management, and delivery.
Backend Developer
Remaster
  • Built features end-to-end on a live German car rental platform — production system with an active customer base.
  • Designed and implemented a GDPR compliance module: data access, retention, and erasure workflows built to legal specification.
Developer
Žilpo / Vikom
  • Built and maintained internal systems for a healthcare group — health centre and specialist eye clinic operations.
  • Automated clinic management workflows: scheduling, reporting, and staff operations.
Developer
Fallbo
  • Built company website and automated Excel-based reporting pipeline for a Swedish real estate firm.
  • Data ingestion, transformation, and output generation: replaced manual reporting processes end-to-end.
Education
Engineer's degree, Multimedia Engineering
University of Zilina
  • Master's-level programme — Faculty of Management Science and Informatics
  • Systems, software engineering, and digital infrastructure
Bachelor's degree, Computer Science
University of Zilina
  • Faculty of Management Science and Informatics