Dominik Bullo
Senior Software Engineer & Tech Lead
+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: behind-the-meter asset controllers, multi-market optimisation engines, and flex and balance market dispatch pipelines across Nordic power markets.

I have taken BESS and wind assets from zero to SvK grid qualification in production and operated across the full stack: controller architecture, backend services, market dispatch pipelines, and cloud infrastructure. I have done this as a founder, as a tech lead, and as an IC. That range is intentional. I take roles where I can own the hard parts end to end.

Key achievements
  • Architected EMS and PPC controllers for BESS across Nordic energy markets: from hardware integration to live market dispatch, with full technical ownership
  • Drove SvK grid qualification end to end for a 40 MW system: SCADA integration, test validation, and regulatory submission. Asset qualified and revenue-generating from day one
  • Tech lead on 8-person cross-functional delivery: shipped a multi-asset flexibility platform (BESS, wind, hydro) in 3 months against a 6-month plan, with expanded scope
  • Built backend systems for Stockholm Exergi, Stockholm's largest district heating operator (800 000+ residents): 40 MW BESS fleet connected to live ancillary service markets
  • Founded and ran DeOutSol: delivered production software for ~10 clients across European markets
Skills
Domain
BESS / Wind / HydroFlexibility MarketsAncillary ServicesMulti-market OptimizationRenewables OptimizationBRP SettlementsSCADA / EMS / PLCIEC 61850
Tech
PythonTypeScriptFastAPIDjangoPostgreSQLGCPDockerTerraform
Experience
Software Engineer
Ingrid
  • Built an internal prequalification tool that automated SvK submission validation across 10 sites, cutting a multi-week manual process to hours and removing a recurring bottleneck before every market qualification.
  • Tech lead on 8-person cross-functional delivery of a multi-asset flexibility platform (BESS, wind, hydro): shipped in half the planned time with expanded scope, enabling new asset types to be onboarded through config alone.
  • Standardised behind-the-meter 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: flex and balance market dispatch, BRP financial flows and settlement, CI/CD pipelines, and code review standards 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 flexibility and ancillary service markets at Stockholm's largest district heating operator, covering 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 flex market activation.
  • Designed scalable delivery platform and behind-the-meter 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, owning the full chain from SCADA integration through market dispatch and settlement to SvK grid qualification.
  • Drove SvK prequalification end-to-end: SCADA integration, test validation, regulatory submission. Asset qualified and revenue-generating from day one.
  • Designed PPC controller architecture and market interface layer: connects BESS assets to real-time frequency markets with no manual intervention at activation or settlement 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, upskilling 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.
Backend Developer
Remaster
  • Designed and implemented a GDPR compliance module: data access, retention, and erasure workflows built to legal specification.
Education
Engineer's degree, Faculty of Electrical Engineering and Information Technology
University of Zilina
  • Master's-level programme in electrical engineering, systems, and software
Bachelor's degree, Computer Science
University of Zilina
  • Faculty of Management Science and Informatics