About Marius
I’m a Software Architect and Engineering Lead with 20+ years across fintech, e-commerce, cloud services, real-time/embedded 3D sensing, and developer tooling. I work best at the intersection of architecture, delivery and leadership: aligning stakeholders, shaping technical strategy, and getting robust systems into production without disrupting operations.
In recent years, I led the end-to-end creation of Kyte, a greenfield e-invoicing SaaS: authored the proposal, recruited and led a fully remote team, designed the architecture, and shipped the product to production.
It reached 1,000+ users within two months and was successfully handed over to Wolters Kluwer/Clearfacts. I also contributed to the preview launch of AWS Verified Permissions (authorization/IAM), focusing on DynamoDB data modeling and observability (logging/tracing/telemetry) in a distributed, multi-site team. More broadly, I’ve built and modernized systems where reliability, security, performance, and cost discipline matter.
I am passionate about creating innovative and transformative solutions that provide value for customers. I am committed to continuous learning and driven by curiosity for emerging trends and technologies. I enjoy working with and learning from others, sharing my knowledge and expertise, and collaborating to achieve impactful outcomes.
What you can expect from me:
- Architecture leadership: cloud-native, distributed systems, event-driven design, API design, data modeling (SQL/NoSQL)
- Engineering leadership: mentoring, setting quality bars, delivery process (trunk-based development, CI/CD, DevOps), pragmatic governance, stakeholder alignment
- Operational excellence: observability, reliability, security guardrails, incremental modernization and migration planning
I’m open to Software Development Lead/Technical Lead/Architect (Solution/Enterprise) roles and Fractional CTO engagements — remote or hybrid in Belgium/EU (US East Coast time zone workable for remote collaboration).
English
Native or bilingual
Romanian
Native or bilingual
French
Fluent
Italian
Conversational
Can work on-site
Brussels (up to 50km), Antwerp (up to 50km), Liège (up to 50km), Ghent (up to 50km)
Experience
- InIteroSoftware Development Lead & ArchitectApril 2023 - Today (3 years and 2 months)Brussels, BelgiumI run a small product/consulting studio, acting as hands-on architect and engineering lead: shaping the roadmap, making architecture decisions, and delivering production-grade software with small high-leverage teams.Key work:• Architecting and building an FMEA MVP web tool (Azure + .NET/C# backend, React frontend, PostgreSQL; IaC with Pulumi; telemetry via App Insights; AI capabilities via Azure Cognitive Services) for XWare. for this MVP I have one other software engineer working with me in a small team.• Led development of a Poland KSeF e-invoicing integration service for Marosa, with a small team of 2 software engineers. Implemented using Java 21, Spring Boot, Kafka, MongoDB; containerized deployment with Docker/Kubernetes.• Built Kyte, a greenfield e-invoicing SaaS: authored proposal, recruited & led a remote team of 4 engineers, designed the architecture, implemented core backends, and shipped to production (AWS serverless: Go backends, TypeScript/React, DynamoDB single-table, Lambda, S3, API Gateway, Step Functions, observability, cost-aware architecture). Product reached 1,000+ users within two months and was handed over to Wolters Kluwer/Clearfacts.Thumbnail for One single team. All European VAThttps://marosavat.com/https://xware-engineering.com/https://clearfacts.be/nl/kyte/
- Powerdale NV/SASoftware Development LeadApril 2023 - August 2023 (4 months)Sint-Genesius-Rode, VB, BelgiumOwned modernization planning for Powerdale's EV charging platform Nexxtmov), including AWS migration strategy and architecture modernization planning.Highlights:• Led two engineering teams (6 software engineers + 3 DevOps/system engineers) and strengthened the SDLC and delivery practices (CI/CD, deployment hygiene), with focus on scalability and reliability.• Served on the executive committee and acted as a bridge between engineering and business for platform operations and roadmap execution.Tech: Java, Spring Boot, PostgreSQL.
- Amazon Web Services (AWS)Software Development EngineerJuly 2022 - April 2023 (9 months)Brussels, BelgiumAs part of AWS Identity building the future of authorization, I contributed to the preview launch of Amazon Verified Permissions (now a core AWS service offering).Highlights:• Implemented the initial DynamoDB data model and later the logging/tracing/telemetry subsystem for observability and operational readiness.• Worked in a distributed team across US and Europe (NY, VA, Madrid, Brussels, Berlin).Tech: Rust, DynamoDB, internal AWS tooling, Cedar policy language.https://aws.amazon.com/verified-permissions/
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Education
- Diplomat Engineer (Ms.)Technical University "Gh. Asachi"2004Diplomat Engineer (Ms.)
- Building Agentic AI Applications with a Problem-First Approach (Maven); Essentials in People skills(Vlerick Business School);Building Agentic AI Applications with a Problem-First Approach (Maven); Essentials in People skills