Lead Full Stack Developer

🔥 1 minute ago

🇭🇺 Hungary – Remote

💵 Ft1.6M - Ft2.2M / month

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 0%

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HexaIO

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2019

🤖 Artificial Intelligence

💼 Consulting

🏢 Enterprise

Artificial Intelligence • Consulting • Enterprise

HexaIO is a Budapest-based technology consultancy that helps companies build AI-powered products, modernize data infrastructure, and scale on the cloud. They provide end-to-end services — AI & machine learning development (including GenAI, conversational AI, and computer vision), data engineering and analytics, cloud architecture and migration across AWS/Azure/GCP, software development, staff augmentation, and IT/AI strategy consulting. HexaIO also develops proprietary AI products (Hexacon voice AI, digital human avatars, and an AI email agent), partners with AWS and leading LLM providers, and focuses on enterprise/B2B clients across sectors such as finance, legal, healthcare, manufacturing, and hospitality.

📋 Description

• Lead hands-on development across front-end, back-end services, APIs, integrations and cloud infrastructure • Design and evolve the architecture and data models behind matching, search, reporting and analytics • Build and improve AI-powered matching between supply and demand on the platform • Design scalable REST APIs and integrations with logistics providers, partner platforms and external data sources • Develop responsive web workflows and dashboards that track transactions from offer through delivery • Set engineering standards through code reviews, automated testing, CI/CD, observability and security practices • Work with product, operations and leadership on technical discovery, estimation and solution design • Mentor developers, troubleshoot complex production issues and take part in incident response

🎯 Requirements

• At least 7 years of professional software development experience, including substantial hands-on full-stack work • Strong back-end and service-oriented architecture skills, covering APIs, business logic, data access and distributed systems • Modern front-end experience building responsive web applications with intuitive user experiences • Proven experience designing, testing and scaling production-grade REST APIs and integrations • Solid relational database knowledge, including data modeling and query optimization • Strong communication skills and fluent English, spoken and written • Development knowledge of as many of the following technologies as possible: Java, Spring Boot, Spring MVC, Spring Data, React or another modern JavaScript/TypeScript framework, AWS or another major cloud platform, Docker and containerized cloud-native architectures, CI/CD pipelines, automated testing, observability tooling, AI/LLM APIs and retrieval-augmented generation (RAG) • Experience building marketplace, SaaS, e-commerce, logistics or other multi-party platforms • Event-driven architectures, microservices and asynchronous processing • Integrating CRM/ERP systems, logistics platforms or external data providers • Building reporting, analytics dashboards or data pipelines for operational decision-making • Working in regulated environments where security, auditability and traceability matter

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