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Senior Full Stack Engineer

Avance Services — Finland · Posted ~2 hours ago

Senior Full-time Hybrid

Skills

Full-stack development Frontend development Backend development API development Database design Performance tuning Web application architecture Frontend Backend APIs Databases DevOps

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Summary ✨ AI‑Generated

A senior full-stack engineering role focused on leading the design, development, and delivery of scalable, secure, and high-performance web applications. You will own frontend and backend implementation, API development, database design and optimization, code quality, and technical mentoring while partnering closely with product, design, operations, and quality teams. Finnish language proficiency is required.

Highlights

Permanent hybrid role with a strong technical leadership component, opportunities to design scalable and secure web applications, mentor junior developers, and collaborate across product, UX, DevOps, and QA teams.

Description

Position: Senior Full Stack Engineer Job Type: Permanent Location: Helsinki, Finland Mode: Hybrid - 3 days onsite and 2 days remote Role: We are seeking an experienced Senior Full Stack Developer to lead the design, development, and delivery of scalable, high-quality web applications involved in identification service, customer feedback, media bank, store marketing etc. This role requires strong technical expertise across front-end and back-end technologies, architectural thinking, and the ability to mentor junior developers while collaborating with cross-functional teams. Key Responsibilities: Lead end-to-end development of complex web applicationsArchitect scalable, secure, and high-performance solutionsDevelop modern, responsive front-end interfacesDesign and implement robust back-end services and APIsOwn database design, performance tuning, and data integrityReview code, enforce best practices, and mentor team membersCollaborate with Product, UX, DevOps, and QA teamsDrive technical decisions and participate in solution design discussionsEnsure high standards of security, reliability, and maintainability Required Skills / Mandatory Programming: Java, TypeScript, JavaScript, Python