Full Stack Developer| Denmark

Role - Senior Developer
Business Unit - CMTADM
Compensation - Competitive (including bonus)

Job Description
We are seeking a Full Stack Developer with strong expertise in modern JavaScript frameworks, backend development, and AI/LLM integrations. The ideal candidate will design, develop, and maintain scalable web applications while integrating intelligent features using NLP and Large Language Models (LLMs).
This role requires hands-on experience across frontend, backend, API integrations, and DevOps practices, along with a strong focus on performance, scalability, and clean architecture.

Responsibilities
1. Full Stack Development

• Design and develop end-to-end web applications using:
• Node.js / Express.js (Backend APIs & services)
• Vue.js / Nuxt.js (Frontend frameworks & SSR applications)

2. Build responsive, scalable, and high-performance UI/UX using HTML, CSS, JavaScript/TypeScript
3. Ensure cross-browser compatibility and optimize applications for maximum speed and scalability

4. API & Integration

• Develop and consume RESTful APIs, ensuring efficient data exchange using JSON
• Work with third-party integrations and internal systems
• Perform API testing and validation using Postman

5. AI / NLP Integration

• Integrate Natural Language Processing (NLP) capabilities and LLM-based solutions into applications
• Build intelligent features such as chatbots, content generation, semantic search, or automation workflows
• Collaborate with data/AI teams to optimize prompts, models, and performance

6. DevOps & Deployment

• Build and maintain CI/CD pipelines for automated testing and deployment
• Containerize applications using Docker
• Manage dependencies and build processes (e.g., Composer and related tooling where applicable)
• Support cloud-native and microservices-based architecture environments

7. Code Management & Collaboration

• Use version control systems such as GitHub, GitLab, Bitbucket
• Participate in code reviews, enforce coding standards, and ensure best practices
• Track tasks and workflows using Jira

Required Skills:

• Strong proficiency in Node.js / Express.js/Vue.js / Nuxt.js
• Solid experience with JavaScript / TypeScript HTML5 / CSS3
• Experience with REST APIs, JSON, API integrations Postman or similar API tools
• Familiarity with NLP concepts and LLM integrations (e.g., OpenAI, Hugging Face, or similar ecosystems)
• Hands-on experience with CI/CD pipelines, Docker containerization
• Expertise in source control and collaboration tools: GitHub / GitLab / Bitbucket, Jira

Desirable / Nice-to-Have Skills

• Experience with microservices architecture
• Knowledge of cloud platforms (AWS / Azure / GCP)
• Exposure to authentication frameworks (OAuth, JWT)
• Familiarity with performance tuning, caching strategies, and security best practices

Personal
Besides the professional qualifications, we respect and place equal importance to the candidate's personality which facilitates success in customer environments. Few traits we look for are:

• High analytical skills
• A high degree of initiative, flexibility and adaptability
• High customer orientation
• Quality awareness
• Good verbal and written communication skills

About Infosys
Infosys is a global leader in next-generation digital services and consulting. We enable clients in 59 countries to navigate their digital transformation.
With over four decades of experience in managing the systems and workings of global enterprises, we expertly steer clients, in 59 countries, as they navigate their digital transformation powered by cloud and AI. We enable them with an AI-first core, empower the business with agile digital at scale and drive continuous improvement with always-on learning through the transfer of digital skills, expertise, and ideas from our innovation ecosystem.
We are deeply committed to being a well-governed, environmentally sustainable organization where diverse talent thrives in an inclusive workplace.

Client-provided location(s): Copenhagen, Denmark

Job ID: Infosys-149604BR

Employment Type: OTHER

Posted: 2026-06-19T18:52:56