Senior Full Stack Developer

Salary: 20. 000 - 23. 000 RON net per month

• Strong hands-on experience with both Java (30%) and Python (70%) in production environments
• 8+ years of professional experience building scalable, high-quality software applications
• Deep understanding of backend architecture principles and RESTful API design
• Strong experience with relational databases (PostgreSQL preferred)
• Hands-on experience with AWS (mandatory); familiarity with GCP is a plus
• Proven ability to design, build, and ship end-to-end features independently
• Experience with Elasticsearch (designing, implementing, optimizing search/indexing solutions)
• Frontend development experience (JavaScript and modern frameworks such as React or Vue) highly desired
• Familiarity with modern data warehousing solutions like Snowflake (nice to have)
• Familiarity with TypeScript and/or PHP (nice to have)
• Experience with component design paradigms, controller-based patterns, and implementing applications using style guides and wireframes
• Comfortable working in Agile environments and proficient in Test-Driven Development (TDD)
• Strong collaboration, mentoring, leadership, and communication skills (excellent written and verbal English)

• Lead development efforts and take ownership of the entire product lifecycle from ideation to implementation
• Collaborate with cross-functional teams (product managers, designers, and engineers) to deliver high-quality, user-friendly products
• Apply technical expertise to drive adoption of new architectures and design patterns
• Mentor and guide junior developers, fostering a culture of continuous learning and improvement
• Contribute to the evolution of the technical stack to ensure scalability and maintainability
• Work closely with UX/UI designers to translate design concepts into responsive and intuitive user interfaces

• API
• AWS
• Backend
• ElasticSearch
• Frontend
• GCP
• Support
• Java
• JavaScript
• Marketing
• PHP
• PostgreSQL
• Python
• React
• Snowflake
• TDD
• TypeScript
• Vue
• UX UI Design
• Cloud
• Data Warehouse
• Fullstack

More:

Were looking for a Senior Full Stack Developer to take end-to-end ownership of product development across backend and frontend systems. Youll work across the full development lifecycle — from architecture and implementation through to deployment — partnering closely with Product, Design, and Engineering. This role is backend-strong, with frontend capability expected.

About Mozaiq:
- Mozaiq is a fully remote team with roots in the US and Eastern Europe.
- We build powerful, cross-functional teams that support sophisticated tech and marketing organizations.
- Global family: a tight-knit, multicultural, remote-first team
- Meaningful work: support world-class brands and products
- Inclusive culture: we prioritize collaboration, clarity, and growth

Perks & Benefits:
- Work from anywhere
- Flexible hours
- Paid time off + holidays
- Team offsites
- Subsidised health insurance

last updated 26 week of 2026