12.10.2026 aktualisiert

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Senior Software Engineer | Full-Stack & Cloud Architecture | TypeScript, Node.js, React

Verzej, Slowenien
Nur Remote
Software Developer - School of Electrical and Computer Engineering Ptuj (2007-2011)
Verzej, Slowenien
Nur Remote
Software Developer - School of Electrical and Computer Engineering Ptuj (2007-2011)

Profilanlagen

Borut_Balazek_Senior_Software_Engineer_CV.pdf
Borut_Balazek_Senior_Software_Engineer_CV_de.pdf

Über mich

I’m a senior software engineer with 15+ years of experience building web and mobile products, from first versions to systems used by millions. I mainly work with TypeScript, React and Node.js. I’m based in Slovenia and have worked remotely since 2011.

Skills

DevOpsNode.jsNext.jsTypeScriptEvent-driven ArchitectureBackendEvent Driven ArchitectureKubernetesCassandraGraphQLReact NativeFront EndNestJSTerraform
Full-Stack Development with TypeScript, Node.js and React
14+ years of experience building and scaling full-stack and data-intensive products. Expertise in TypeScript, JavaScript, Node.js, React, Next.js and React Native, covering both frontend and backend development across numerous projects in FinTech, EdTech, IoT and consumer products.

Cloud Infrastructure and DevOps
Extensive hands-on experience with Docker, Kubernetes, Terraform, AWS, GCP and Azure. Proven track record of managing infrastructure through multiple generations of scale, including cloud migrations, CI/CD pipelines with GitHub Actions and GitLab CI, and containerisation of development and production environments.

Backend Architecture and System Design
Deep expertise in designing and building scalable backend systems using microservices, event-driven architecture and domain-driven design. Proficient with NestJS, Fastify, GraphQL, REST APIs, PostgreSQL, Redis, Kafka, Elasticsearch and ClickHouse, with experience leading multi-team backend delivery.

AI and LLM Integration
Practical experience integrating AI and large language models using OpenAI, Anthropic and Ollama. Built LLM-based classification pipelines using hierarchical GPT models to categorize financial signals and power AI-driven investor insights.

Data Engineering and ETL Pipelines
Experience designing and building data platforms including monorepos with 100+ API endpoints, scheduled Airflow pipelines, crawlers and ETL workflows over SEC filings, news and market data, using PostgreSQL, MySQL, ClickHouse, Cassandra and Kafka.

Testing and Observability
Solid experience with testing frameworks including Jest, Vitest, Cypress and Playwright. Introduced and built out unit and integration test coverage, CI deployment pipelines and QA workflows, as well as observability tooling with Grafana.

Mobile Development with React Native
Ownership of mobile product development end to end, including migrating native Android apps to React Native across Android and iOS, managing push notifications, offline handling, and release and signing pipelines for multiple store listings.

Technical Leadership and Mentoring
Experience as Founding Engineer and CTO, leading architecture decisions, onboarding teams, mentoring junior developers and coordinating delivery across multiple vendor teams. Served as one of four code owners on a large shared codebase.

Open Source Contribution
Contributor to the open-source WebGL 3D engine Babylon.js maintained by Microsoft, and author of Babylon.js and three.js boilerplates. Creator of open-source projects including MoaiTime, a self-hosted productivity platform.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2011

Sprachen

GermanverhandlungssicherEnglishverhandlungssicherSlovenianMuttersprache

Projekthistorie

Founder & Senior Software Engineer - Independent Consultancy

Corco Labs d.o.o. (previously Corcosoft, Borut Balazek s.p.)
Independent software consultancy delivering 70+ software projects across six countries in FinTech, IoT, Energy, EdTech and consumer products. Worked with international organisations including Philips, RWE, Innogy, Danone and Les Mills. Owned delivery end to end across requirements, architecture, implementation, deployment and long-term maintenance.

Founding Engineer / CTO - Hands-on Engineering

MarketAlerts.com
AI investment-intelligence startup providing real-time signals across 20+ global markets. Built an AI-powered market intelligence platform covering web app, mobile app and CMS. Designed and built the backend and data platform with 100+ API endpoints, Airflow pipelines, crawlers and ETL workflows. Built LLM-based classification using hierarchical GPT models. Owned architecture and infrastructure including cloud migration from AWS to GCP.

Tech Lead / Backend Architect

Martian & Machine
Government smart-city programme in the Middle East delivered across five city domains and several vendor teams. Designed and built backend architecture with 20+ microservices on Kubernetes using domain-driven design. Built platform services in NestJS and TypeScript with APISIX as API gateway, Keycloak for identity and GitLab CI for delivery. Designed event-driven layer connecting IoT gateways using Kafka, Cassandra, PostgreSQL and Grafana.

Senior Software Engineer

Edukey Education Ltd
UK EdTech behind ClassCharts and Provision Map, acquired by TES Global. Joined as the first developer alongside the CTO and helped grow the platform to thousands of schools and millions of users. Rebuilt legacy web application from jQuery to React, migrated mobile apps to React Native, owned mobile product end to end, managed infrastructure across Rackspace, GCP and AWS, introduced Docker and Kubernetes, led migration of 40+ TB of assets, introduced CI/CD pipelines and mentored junior developers.

Web Developer

Alstar d.o.o.
Slovenian unified-communications provider offering VoIP, virtual PBX telephony, hosting and CRM. Customised vTiger CRM for client businesses, built and maintained client websites on Joomla including e-commerce and business integrations, and rebuilt the company website on Joomla.

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