Sysmetica

Full-Stack Engineer (NestJS + React) engineer needed for US-based AI startup. We are building a platform that combines AI, personalization, and gamification to help users understand their goals and unlock real-world rewards. 
 

Tech Stack & Requirements

• Backend: NestJS, PostgreSQL
• Frontend: React (must be strong in frontend as well as backend)
• AI/ML: Experience integrating LLM wrappers and ML models
• Cloud: Strong knowledge of AWS architecture

Must-haves

• Proven full-stack experience (backend + frontend)
• Strong ability to review and build high-quality frontend code
• Solid understanding of scalable software architecture
• Curious, proactive, and ambitious mindset
• Strong communication and responsiveness in a remote setting
• Availability until 1 PM Pacific Time

Nice-to-have

• Experience with mobile app development (React Native or native)
• Prior experience in early-stage startups
• Familiarity with habit-building, gamification, or rewards-based platforms

What we offer

• A chance to shape the future of growth and rewards
• Direct collaboration with founders and core engineering team
• An exciting AI-driven product with real social impact
• Long-term opportunity to grow with the company

 Screening Questions for Djinni Candidates

1.  
2. Do you have hands-on experience with PostgreSQL? (e.g., optimization, scaling, migrations)
3. Which AWS services have you worked with in production?
4. Do you have experience building or contributing to mobile apps?
5. How comfortable are you with reviewing and improving frontend code?
6. How do you ensure code quality in a fast-paced startup environment?

Angular (v18+) and TypeScript developer needed. Join the team for a UK-based healthcare company that enables remote patient monitoring, clinical research, and personalized healthcare. 

What You’ll Do:
• Design and develop front-end features using Angular and TypeScript
• Maintain and improve the architecture, performance, and scalability of the frontend codebase
• Collaborate closely with UX/UI designers and product owners
• Drive best practices in coding and testing for frontend development
• Conduct code reviews

What We’re Looking For:
• 3+ years of experience in frontend development with strong knowledge of Angular (v18+) and TypeScript
• Solid understanding of component-based architecture
• Experience with RxJS, Angular Material, SCSS/CSS3, and responsive design
• Strong knowledge of RESTful APIs, HTTP, and web application security
• Ability to write clean, maintainable, and well-tested code
• Proficiency in version control systems like Git
• Excellent communication skills and a proactive approach to problem-solving

Nice to Have:
• Experience with performance optimization tools and techniques (e.g., Lighthouse, lazy loading)
• Familiarity with CI/CD pipelines and deployment automation
• Exposure to backend development or full-stack experience
• Knowledge of accessibility standards (WCAG) and testing frameworks like karma

About Sysmetica

Sysmetica is a team focused on building high-quality mobile applications that align cutting-edge technology with our clients’ business goals. We develop native iOS and Android solutions known for their performance, usability, and scalability. At the heart of our work is not just the product itself, but the real value it brings to users and businesses.

As we grow, we’re looking for like-minded individuals who are passionate about modern tech, enjoy working in a team of professionals, and want to make a real impact. At Sysmetica, you’ll have the opportunity to be involved in the full development cycle—from the first idea to launch and beyond.

We value transparency, clear communication, respect for time and balance, and a shared desire to grow together. If you’re someone who combines technical excellence with a practical mindset and wants your contribution to truly matter — we’d love to have you on our team!