Hreinn Juliusson
Quantitative Analyst · Software Engineer
Uppsala, Sweden
Profile
Quantitative analyst and software engineer with an Engineering Physics background from Uppsala University and over seven years of industry experience. Currently developing sports pricing models in C++ at Kambi, building on several years of designing and operating high-load, cloud-native Java services for the company's sportsbook and Bet Builder products.
Experience
Kambi
Quantitative Analyst
- Develop and maintain sports models in C++ used for pricing in the Kambi sportsbook.
- Work on sports modelling together with traders and fellow quantitative analysts.
Software Developer
- Bet Builder (Same Game Parlay): Java microservices (Spring Boot, Vert.x) serving high traffic on EKS across multiple AWS regions; REST and Kafka communication; deployment via Helm and ArgoCD. Worked closely with sports and trading experts and quantitative analysts.
- Calculation Server: ECS-based Python (Uvicorn) service executing binary sports models developed by quants; CI/CD with GitHub Actions and Terraform.
- Legacy migration: Split the sportsbook monolith into domain services and migrated large data volumes from Oracle to PostgreSQL under a zero-downtime policy.
- Operations & FinOps: Observability with Grafana, Prometheus, Loki and Micrometer; right-sized autoscaling and tracked costs with Vantage and AWS Cost Explorer; on-call rotation for owned components.
Aurora Innovation
Software Developer
- Developed teleQ, a task-management and communication platform for Swedish primary health care: a Java (Jetty, MongoDB) core with microservices for telephony, SMS, video calls, billing and BankID authentication.
- Built the reporting service (Spring Boot, PostgreSQL, AngularJS).
- Automated deployments with Ansible playbooks and Fabric (Python).
- Supervised Master's thesis students.
Education
Uppsala University
MSc Engineering Physics — Computational Science
- Master's thesis (Aurora Innovation): workflow prediction with deep learning (LSTM), with Bayesian optimisation of network hyperparameters.
- Bachelor's thesis (Dept. of Scientific Computing): multigrid preconditioner for deal.II.
Skills
Languages
Modelling
Backend
Cloud & DevOps
Observability
Other
Jfokus — Member of the programme committee
Uppsala University — Teaching assistant, Programming I–II and Computational Science I–II
Swedish Prison and Probation Service — Correctional officer (part-time)