Fullstack Developer – Next Gen Value Streams

Jobtailor; Helsinki; On-site; EUR 60,000 - 100,000; Full time

Job summary

Jobtailor in Helsinki seeks a versatile software engineer to contribute to complex, full-stack digital services across industries. You will help shape design decisions for scalable, secure systems and proactively resolve issues within a collaborative team.

You’ll engage in client-facing demos and roadmap conversations, while continuously improving skills and adopting new tools and frameworks in a fast-paced environment.

Qualifications

• Professional software development experience, ideally in client-facing environments.
• Hands-on full-stack coding using modern frameworks (React/Vue) and languages (TypeScript, Kotlin, Python, .NET).
• Experience with cloud services (AWS, GCP, Azure) and CI/CD pipelines.
• Knowledge of system design, data modeling, and APIs.
• Collaborative, agile teamwork with developers and non-technical stakeholders.
• Ability to write clean, well-tested, and well-documented code.
• Proficiency in Finnish and English for professional communication.

Responsibilities

• Contribute to development of complex, full-stack digital services across industries.
• Participate in design and architecture decisions for scalable, secure systems.
• Identify issues proactively and resolve them as part of the team.
• Engage in client-facing work, including demos, discussions, and roadmap planning.
• Maintain a strong learning mindset and stay updated with new tools and frameworks.

Skills

Full-stack development

React or Vue

TypeScript

Kotlin

Python

.NET

Cloud services

CI/CD

APIs & data modeling

System design

Agile teamwork

Finnish & English proficiency

Tools

GitHub Copilot

Cursor

Claude Code

Job description

Responsibilities

• Contribute to the development of complex, full-stack digital services across various industries
• Contribute to design and architecture decisions to ensure systems are scalable, secure, and maintainable
• Proactively identify issues and resolve them as part of the team
• Participate in client-facing work, including demos, technical discussions, and roadmap planning
• Strong learning mind-set: continuously improve skills and stay updated with new tools, languages, and frameworks

Requirements

• Experience in more than just prompting AI agents
• Identify how skills and multi-agent setups can be used to create real business value to our clients
• Effectively monitor and observe agent interactions to find potential bottlenecks and fine-tune agentic workflows
• Proficiency with agentic AI tools like GitHub Copilot, Cursor, and Claude Code
• Professional experience in software development, ideally within a consulting or client-facing environment
• Full-stack coding experience, building apps using modern frameworks (e.g., React, Vue) and languages (TypeScript, Kotlin, Python, .NET)
• Hands-on experience managing cloud services (AWS, GCP, Azure) and setting up CI/CD pipelines
• Experience in system design, data modeling, and APIs
• Collaborative approach to agile teamwork with developers and non-technical stakeholders
• Experience in writing clean, high-quality, well-tested, and documented code
• Professional working proficiency in both Finnish and English