Frontend Developer
About the job
- A bachelor's degree in Computer Science, Software Engineering, Electrical and Electronics Engineering, Industrial Engineering, or a related field.
- At least five years of professional frontend development experience.
- Expertise primarily in React.js and familiarity with other modern frontend frameworks such as Next.js, Angular, or Vue.js, along with end-to-end enterprise application development experience.
- Knowledge of TypeScript and modern JavaScript (ES6+), with advanced knowledge of HTML5, CSS3, and responsive design principles.
- Experience with state management such as Redux, Context API, or Zustand and RESTful API integration.
- Experience developing projects using Agile/Scrum methodologies and version control systems such as Gitflow, GitHub, or Bitbucket.
- English proficiency sufficient to follow technical documentation.
- Familiarity with web performance optimization and security.
- Ability to work on-site in the office five days per week.
- Develop web administration dashboards based on React.js.
- Design high-user-experience, responsive screens compatible with all devices for monitoring real-time data.
- Follow architectural standards such as Clean Code and SOLID principles when developing applications.
- Coordinate with Analysis, Backend, and other relevant teams to carry out interface and API integration processes.
- Contribute to the design of scalable code architectures, participate in code reviews to support project quality standards, and use experience to improve processes.
- Experience with real-time communication processes such as WebSocket for live data integration.
- Familiarity with automated CI/CD pipelines for deploying applications to production.
- Experience writing tests using libraries such as Jest, Cypress, or Playwright.
- Familiarity with modern frontend tools and package managers such as NPM, Vite, or Webpack.
About the company
Crenno is a technology and innovation company that blends R&D with software and hardware development to create digital products for AI, mobile, and game platforms. Its main approach is building spin-off projects via a startup-studio model, using the latest software and hardware technologies to deliver solutions that stand out with clear design, strong user experience, and effective marketing differentiation. The company collaborates with clients who value quality, UX, and software that shapes modern business life, guiding mobile strategies and shaping product concepts from idea to deployment. Its goal is to create memorable, engaging software by combining innovation with practical engineering, and to lead in its chosen tech areas through agility, expertise, and close customer collaboration.
Company Size
1-10
Company Stage
N/A
Total Funding
N/A
Headquarters
Istanbul, Türkiye
Founded
2009
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Simplify's Take
What believers are saying
- CRENNO is hiring in 2026 for .NET, mobile, and business analysis roles.
- Its website highlights telecom, fintech, airline, retail, e-commerce, and supply-chain work.
- Recent site updates promote blockchain and AI offerings, signaling continued product expansion.
What critics are saying
- CRENNO has only 11-50 employees, limiting delivery capacity and sales coverage.
- Its project-based outsourcing model faces brutal price competition from Turkish and global agencies.
- No public funding, major product traction, or lawsuits create an existential concentration risk.
What makes CRENNO unique
- Founded 2009, CRENNO sells custom software and enterprise modernization across 5+ countries.
- LinkedIn lists AI, mobile, game, blockchain, Salesforce, and security specialities.
- CRENNO says 85% client retention across 20+ clients over 14 years.
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Benefits
- Health Insurance
- Meal Benefits
- Commuter Benefits
- Hybrid Work Options