About USAt Leadtech, we’ve been redefining digital businesses since 2009, creating innovative online solutions that reach millions of users every month. With a diverse team of over 700 members from 23+ nationalities, we’re united by a passion for creativity and collaboration. We specialize in delivering user-centric experiences across web and mobile platforms, where people can connect with our products like never before. We’re proud of our global reach and committed to fostering an inclusive workplace where every individual contributes to our shared vision of bringing cutting-edge projects to life. Learn more about our journey and mission on our page! About the RoleWe’re looking for a MarTech Full-Stack Developer to join our Marketing Technology & AdTech team. This is not the kind of “full-stack” role where you’ll spend your life centering buttons or debating border-radius values for three sprints. You’ll be working at the intersection of engineering, attribution, internal tooling, and growth — building the systems that make campaign measurement reliable, data flows usable, and marketing teams less dependent on guesswork. You’ll help us maintain and evolve the technical backbone behind tracking, postbacks, schemas, integrations, and internal tools. That includes working on our internal CRM/tooling, improving how marketing teams operate, and making sure data moves where it should, when it should, and in the format it should. You’ll collaborate closely with performance marketers, product owners, developers, and data stakeholders, acting as a bridge between business needs and technical implementation. And just so we’re clear: we don’t really care what you studied or where. Computer Science, Physics, Philosophy, self-taught, bootcamp, or “learned by breaking production and fixing it later” — all valid.**We care about what you can do, how you think, and how you take ownership. Also: if you use AI to move faster, think better, document clearer, or automate boring work — great. That’s a plus.

• Are you excited to help shape the world of tomorrow with us? Join our Product & Tech team as a (Senior) Fullstack Developer (all genders) and actively shape the technological foundation for scaling our energy projects. • Build systems that automate our internal processes, connect our platform landscape, and create the basis for further growth at GIGA.GREEN. • Onboarding: Learn our business model, product landscape, and tech stack in detail. • Get an overview of our existing tools, systems, and integrations. • Quickly take ownership of initial smaller projects and parts of our system landscape and develop them independently. • Develop and operate integrations between our core SaaS platforms (e.g., CRM, project management, Google Workspace) to automate key business processes. • Build scalable backend services and modern frontend interfaces based on React, Node.js, Next.js, and related technologies. • Work closely with product managers and evolve prototypes—often using AI tools—into stable, production-ready solutions. • Ensure the security of our applications, improve existing systems, and implement best practices in API security and web security. • Take responsibility for our infrastructure and ensure our services run stably, performantly, and with proper monitoring. • Improve our development processes, establish clear standards, and help turn rapid prototypes into scalable architectures. • Design and implement CI/CD pipelines and continuously develop our DevOps structures. • Actively contribute to architecture decisions and help shape our system landscape sustainably. • Use AI-assisted development deliberately, efficiently, and responsibly—and support the team in its effective use. • Continuously identify optimization opportunities in our tools, processes, and systems.

• Vara en del av ett passionerat och erfarna team av Full Stack-utvecklare • Forma framtidens digitala landskap tillsammans med TietoEvry • Ge möjlighet att visa dina kunskaper och ställa frågor • Samarbete med kollegor och kunder • Design och utveckling av system

• Maintain existing code base and version control • Design and develop new features and functionality based on business requirements • Coordinate with the rest of the team who work on different parts of the infrastructure • Report on the progress of all open projects • Assist in hiring, onboarding and evaluations • Push forward internal development through sharing knowledge and keeping on top of the newest technologies.