09/09/2026 updated
100 % available
Senior Software Engineer | Full Stack | AI & Cloud
Movileni, Romania
Worldwide
Computer Science - University of CraiovaJava (Programming Language)Application Programming Interfaces (APIs)DevOpsNode.jsNoSQLBlockchainSmart ContractsNext.jsSystems IntegrationDatadogGrafanaInfrastructure as Code (IaC)BackendFull Stack DevelopmentGraphQL
Full Stack Web Development (TypeScript, React, Node.js)
Over 11 years of experience building production-grade web applications. Expertise in TypeScript and JavaScript on both frontend (React, Next.js, Angular) and backend (Node.js, Express, Nest.js), delivering complete solutions from an empty repository to production.
Cloud & DevOps (AWS, Kubernetes, Terraform)
Extensive hands-on experience with cloud infrastructure across AWS and GCP, container orchestration with Kubernetes, infrastructure-as-code with Terraform, and CI/CD pipelines. Managed platforms through demand peaks in energy and fintech domains.
AI Integration & Voice Agent Engineering (OpenAI, Vapi, ElevenLabs)
Practical experience integrating AI and LLM-based systems into production environments. Migrated and extended AI voice agents using Twilio telephony over Vapi, ElevenLabs, and OpenAI, with prompt and model configuration managed in version control.
Backend Development (Go, Java, Spring Boot)
Solid backend engineering skills in Go and Java, including Spring Boot APIs. Built backend services for AI assistants, job platforms, and government management systems.
Database Management (MySQL, PostgreSQL, MongoDB, Redis)
11 years of experience with relational and NoSQL databases including MySQL, PostgreSQL, MongoDB, DynamoDB, and Redis, applied across fintech, energy, and crypto projects.
Blockchain & Web3 (Smart Contracts, Ledger, NFT)
Experience integrating smart contracts for on-chain grading results, extending cryptocurrency wallet infrastructure at Ledger, and integrating Web3 interactions for NFT marketplaces.
React Native & Mobile Development
6 years of experience with React Native, building cross-platform mobile applications sharing design language with web counterparts.
Observability & Monitoring (Datadog, Prometheus, Grafana)
Experience setting up and maintaining observability stacks using Datadog, Prometheus, and Grafana to monitor production systems and ensure reliability.
Technical Leadership & Team Management
Led engineering teams of up to five people across multiple projects, owning technical direction, code review standards, and architecture decisions in contractor and startup contexts.
GraphQL & REST API Design
10 years of REST API experience and 3 years with GraphQL, including building Node.js GraphQL BFF layers aggregating microservices.
Experience
Professional experience10+ years
Freelancer since2015
Languages
EnglishFluentRomanianNative speaker
Project history
Shareholder and engineer at a booking and CRM startup. Built the component library that became the foundation for UI development across web and mobile. Works across Spring Boot APIs, React web, and React Native mobile from one shared design language. Continues to shape product direction and ship code as a shareholder, part-time.
Backend engineering on an AI voice product at Checkatrade, a UK home-services marketplace. Migrated and integrated a production AI voice agent across both company platforms. Built the voice pipeline on Twilio telephony over Vapi, ElevenLabs, and OpenAI. Moved assistant prompts and model config into version control. Delivered auditable user consent and data erasure alongside the legal team.
Sole frontend engineer on a large internal management platform for a government client. Built the entire frontend from empty repository to delivery in React, TypeScript, and Vite. Set the frontend architecture including routing, state, and component library, and integrated against a Java backend.