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Principal/Lead Software Engineer at AIDA Recruitment. Location Information: Europe, Ukraine. For our client, we are looking for a . Principal / Lead Software Engineer (Vue.js / TypeScript / GraphQL). to join a fast-growing European SaaS company that develops a . browser-based video communication platform. . Their solution powers webinars, virtual meetings, demos, and online training all directly in the browser, without downloads or installations.. . About the Role. . You'll act as a . technical and strategic partner. to customers, bridging product capabilities with customer needs. This is a customer-facing, high-impact role that combines . technical leadership, pre-sales solution design, and hands-on engineering. . . You'll collaborate closely with . Sales, Product, and Engineering teams. to create proof-of-concept implementations, lead technical conversations, and ensure that clients get the most value from the platform.. . Our Candidate. . . 5+ years of experience in . Solutions Engineering. , . Sales Engineering. , or a similar technical role. . Proven . Tech Lead / Principal Engineer. experience. . Strong knowledge of . APIs, webhooks, and SaaS integrations. . Expert-level skills in . Vue.js. and . TypeScript. . Strong command of . GraphQL. and general web technologies (REST, JavaScript, etc.). . Excellent communication and stakeholder management skills. . Fluency in English. . . Nice to have:. . . Experience working in . startup or scale-up SaaS environments. . Familiarity with . automation platforms. (Zapier, Make, etc.). . Experience building internal tools or contributing to technical content. . . What You Will Do. . . Lead . technical discovery sessions. with prospects and customers. . Design . scalable integration solutions. using APIs and webhooks. . Support . sales cycles. with demos, documentation, and expert insights. . Build . prototypes or internal tools. to demonstrate platform capabilities. . Collaborate with Product and Engineering to . prioritize feature requests. . Provide . mentorship and technical leadership. to Solutions Engineers and other team members. . . What the Company Offers. . . 100% . remote work. (Europe or Ukraine). . B2B contract. with a competitive rate. . Opportunity to . shape the technical direction. of a fast-growing SaaS platform. . Work in a . collaborative, transparent, and international team. . Freedom to experiment, innovate, and directly impact product growth. . . If you are ready to take on this strategic and impactful role, we look forward to receiving your . CV. and getting to know you better.