❗️ Important – On-Site Role in Serbia❗️
This is an on-site position based in Serbia, Belgrade. Remote or hybrid arrangements are not available. Candidates must already be in Serbia or be willing to relocate. Full relocation support will be provided if needed. 

⚡ We are looking for an experienced Senior HTML/Markup Developer to join our development team in Serbia and help build and style high-quality iGaming websites. You will play a key role in crafting visually engaging and responsive interfaces by focusing on markup and CSS styling, turning Figma designs into fully functional, high-performance web experiences.

🎯 Your Mission:
Contribute to the creation and customization of new iGaming brand websites. You will be responsible for translating design specifications into pixel-perfect, responsive layouts while ensuring consistency, performance, and maintainability across multiple platforms. Collaboration with designers, developers, QA, and product teams will be central to your role.

✅ Responsibilities:
• Set up and customize new brand websites based on design specifications
• Implement and style interfaces following Figma layouts and branding guidelines
• Work closely with designers to fine-tune and resolve design nuances
• Customize and style key website components, including login and registration pages, dashboards, game halls, sports pages, and navigation elements
• Update and manage core framework versions across brands
• Ensure code quality through code reviews and release management
• Support live brands, handling styling updates, fixes, and feature rollouts
• Collaborate with cross-functional teams to deliver seamless user experiences
• Introduce creative ideas and contribute to continuous improvements in design implementation and performance

✅ Requirements:
• 5+ years of professional experience as an HTML/Markup Developer
• Excellent knowledge of HTML (Pug) and CSS (SCSS)
• Strong understanding of UI/UX design principles, responsive design, and cross-browser compatibility
• Proven experience building adaptive layouts and maintaining pixel-perfect visual quality across devices
• Solid knowledge of CSS/JS animations, transitions, and motion best practices
• Experience working with Figma / Sketch / Photoshop for translating design systems into production-ready interfaces
• Familiarity with CSS preprocessors (Sass/Less) and version control tools such as Git
• Understanding of web performance optimization and accessibility standards
• Strong collaboration skills with designers, QAs, and developers in multi-brand or large-scale environments
• Attention to detail, with an eye for visual precision and consistency
• Intermediate or higher level of English

✅ Nice to Have:
• Experience with frontend build tools (Gulp, Webpack, etc.)
• Knowledge of template engines (Pug, Handlebars, etc.)
• Experience working with CSS frameworks (Bootstrap, Tailwind, etc.)
• Understanding of HTML email templates
• Familiarity with Canvas API, WebGL, ThreeJS, or GSAP for advanced visual effects
• Basic knowledge of Angular (for integration purposes only)

✅ Recruitment Process:

1. Interview with the Recruiter: An introductory conversation to get to know you better, discuss your background, and align expectations about the role and the company.
2. Technical Assessment (HackerRank): A short coding challenge designed to evaluate your technical skills and problem-solving abilities.
3. Technical Interview: An in-depth discussion about your technical expertise, hands-on experience, and approach to solving real-world problems.
4. Final Interview with the Hiring Team: A conversation with team members and leadership to assess cultural fit, collaboration style, and alignment with the team’s goals.
5. Offer: If everything goes well, we’ll move forward with a formal offer to join our team.

✅ We offer excellent benefits, including but not limited to:

LearnUpon is looking for a Senior Software Engineer to join our team in Belgrade. This is a flex role, working 1 day per week from LearnUpon's Belgrade office.

LearnUpon LMS helps organizations train their employees, customers, and members. Businesses can manage, track, and achieve their unique learning goals — all through a single, powerful solution.

With offices in Dublin (our HQ), Belgrade, Philadelphia, Salt Lake City and Sydney, we are a global team with lots of diverse cultures, backgrounds, and experiences that puts our customers' experience at the heart of everything we do. Our culture fosters an open, collaborative and supportive environment where our accomplishments are celebrated and encouraged. We're always striving for the best solution (not the easy one). We’re proud of our success and we’re humble and hungry to achieve more. 

As a Senior Software Engineer, you will play a crucial role in designing, developing, and delivering features, services, enhancements, and fixes for LearnUpon's core product. You'll contribute to the creation of a scalable, best-in-class LMS while strengthening our company culture.

Our current technology stack includes:

• GoLang and Ruby on Rails for backend development.
• Kafka for event-driven architecture.
• MySQL, Redis, and document stores for data storage and caching.
• AWS services such as S3, SNS, and SES for cloud infrastructure.
• Datadog for logging and monitoring.

We value choosing the right technology for each problem and encourage continuous learning and skill development.

What will I be doing?

• Drive impact and innovation by designing, building, and shipping software at scale.
• Actively improve code quality and design craftsmanship.
• Identify and leverage opportunities to enhance engineering productivity.
• Collaborate closely with other Engineers and Product team members.
• Mentor and guide junior engineers to foster their growth and development.
• Drive impact and innovation by designing, building, and shipping software at scale.
• Actively improve code quality and design craftsmanship.
• Identify and leverage opportunities to enhance engineering productivity.
• Collaborate closely with other Engineers and Product team members.
• Mentor and guide junior engineers to foster their growth and development.

What skills do I need?                                                                                  

• 6+ years of experience in software design and development using languages such as Ruby, GoLang, or other object-oriented languages.
• Strong expertise in developing and deploying high-quality, large-scale distributed systems and client-server architectures.
• Extensive experience with event-driven architectures and frameworks like Kafka.
• Deep understanding of cloud-based environments, specifically AWS services and best practices.
• Proven ability to communicate technical ideas effectively and collaborate with both technical and non-technical stakeholders.
• Holistic approach to solving engineering problems with a focus on craftsmanship and quality.
• Experience in leading projects from requirements gathering to deployment, collaborating with cross-functional teams.
• Ownership and accountability for delivering work throughout the software development lifecycle.
• Extensive knowledge of relational and non-relational databases, with a focus on query performance optimization.
• Excellent written and verbal communication skills in English.
• Proven track record of being a team player who collaborates effectively with both technical and non-technical colleagues.

Don’t worry if you don’t tick every box in order to apply, we’re always happy to review applications and take all experience into consideration. We do our best to provide feedback where we can!

Not required but considered a big plus

• Familiarity with GoLang, Ruby on Rails or similar web frameworks.
• Knowledge of front-end technologies such as Angular or other JavaScript frameworks.
• Previous experience in the eLearning industry or working with learning management systems.
• Exposure to API development and payment gateway integrations.
• A technology-related degree or equivalent qualification in Computer Science, Engineering, or a related field.

Why work with us?

• Competitive salary and company ESOP
• 25 days annual leave and 1 annual wellness day
• Private health insurance
• Up to 4 weeks per year working abroad (role eligibility applies)
• Clear career progression opportunities — take LearnUpon where you think it can go
• A collaborative and supportive environment with regular team events

What is the Hiring Process?

Our typical process generally works as follows:

• Qualified applicants will be invited to schedule a screening call.
• Successful candidates will then be invited to a series of practical interviews.
• Finally, candidates will have a short interview with a member of our C-Suite Team.
• The successful candidate will be contacted with an offer to join our team.

LearnUpon is an Equal Opportunities Employer. 

We do not discriminate on the basis of gender, marital status, family status, age disability, sexual orientation, race, religion, membership of the Traveller community, or any other legally protected status.

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