(Senior) Java Developer (MainApp/Reward + feature)

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🚀 We're Hiring | Senior MERN Stack Developer | 5–8 Years
 
We're looking for an experienced Senior MERN Stack Developer to join our team and work on scalable, high-performance web applications and enterprise-level software solutions.
 
📍 Location: Remote / Flexible
💼 Experience: 5–8 Years
 
Required Skills:
 
✅ Strong experience with MongoDB, Express.js, React.js, and Node.js (MERN Stack)
✅ Advanced JavaScript / TypeScript development
✅ Experience building scalable RESTful APIs and backend services
✅ Strong knowledge of React.js, Hooks, State Management (Redux/Zustand/Context API)
✅ Experience with Node.js, Express.js, and API architecture
✅ Database design and optimization with MongoDB
✅ Experience with HTML5, CSS3, Tailwind CSS, and modern frontend practices
✅ Knowledge of authentication, authorization, and security best practices
✅ Experience with Git, CI/CD, and Agile development workflows
 
What We're Looking For:
✔ Strong problem-solving and analytical skills
✔ Ability to design and develop clean, maintainable, and scalable code
✔ Experience working in Agile/Scrum environments
✔ Excellent communication and collaboration skills
✔ Self-driven mindset with attention to quality and technical excellence
✔ Ability to mentor junior developers and contribute to architectural decisions

I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
​The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
​What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
​Requirements:
​Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
​Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
​Professionalism: We operate with high standards. Communication and efficiency are key.
​How We Work:
​Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
​Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
​Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
​Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
​Let’s build the future, together.
​Sadr B
CEO, Oferli

Responsibilities:
 
* Monitoring the cryptocurrency market and tracking market trends in real time
* Analysing news, market data and blockchain metrics
* Preparing internal reports and maintaining analytical documentation
* Participating in team discussions and working meetings
* Adhering to internal processes and working standards
* Continuously developing professional skills through training and mentoring
 
Requirements:
 
* An interest in cryptocurrencies, blockchain technologies and financial markets
* Analytical thinking and the ability to work with information
* Attention to detail, responsibility and discipline
* Ability to maintain concentration in a highly dynamic market environment
* Willingness to learn, work as part of a team and take on board feedback
* Trading experience is not essential; training is provided for beginners
* A stable internet connection and the ability to be contactable during working hours
 
Conditions:
 
* Fully remote working arrangement
* Flexible working hours
* Paid training and support from mentors
* Opportunities for career progression and professional development
* Access to state-of-the-art digital asset analytics tools
 
Working arrangement: Full-time
Location: Remote / Worldwide
 
Key skills:
 
* Data analytics
* Financial reporting
* Cryptocurrencies
* Attention to detail
 

About the Role
We are building a next-generation Web3 social platform designed to redefine how digital communities connect, collaborate, and grow.
Backed by years of experience within the cryptocurrency, blockchain, and digital asset ecosystem, our team has developed deep insights into how founders, developers, investors, creators, and communities interact. This understanding inspired us to create a platform that goes beyond financial applications and focuses on empowering meaningful social engagement.
Our mission is to build a transparent, community-driven social network where users can share ideas, collaborate on projects, discover opportunities, and create lasting relationships. We believe the next evolution of social media will be powered by decentralized technologies while maintaining an exceptional user experience, simplicity, and long-term sustainability.
We are seeking an experienced Chief Technology Officer (CTO) or Senior Full-Stack Developer who is passionate about Web3 and capable of leading the technical vision, architecture, and execution of our platform from the ground up.
Responsibilities
Lead the technical strategy and product architecture.
Design and build scalable backend systems and modern frontend applications.
Develop high-performance APIs and real-time features.
Integrate blockchain technologies, wallets, and Web3 authentication where appropriate.
Build secure, reliable, and maintainable infrastructure.
Collaborate closely with product, design, and leadership teams.
Establish engineering best practices, code quality standards, and development workflows.
Mentor engineers and help grow the technical organization.
Evaluate emerging technologies and implement solutions that improve scalability, security, and user experience.
Requirements
5+ years of professional software development experience.
Strong experience with modern JavaScript/TypeScript ecosystems.
Experience with React, Next.js, Node.js, or similar technologies.
Solid understanding of system architecture, cloud infrastructure, databases, and API design.
Experience building scalable consumer-facing products.
Familiarity with blockchain technologies, Web3 infrastructure, wallets, smart contracts, or decentralized applications.
Strong knowledge of security best practices and application performance optimization.
Excellent problem-solving and communication skills.
Ability to work independently in a fast-paced startup environment.
Preferred Qualifications
Experience building Web3 or crypto products.
Understanding of decentralized identity, token ecosystems, or on-chain social applications.
Experience leading engineering teams or serving in a technical leadership role.
Background in DevOps, CI/CD, Docker, Kubernetes, or cloud platforms such as AWS or GCP.
Experience with real-time messaging, social platforms, or community products.
What We Offer
Competitive full-time compensation.
Opportunity to build a product from an early stage with significant technical ownership.
Flexible and remote-friendly work environment.
Collaborative team focused on innovation and long-term impact.
Work on cutting-edge Web3 technologies and help shape the future of digital communities.
Opportunity for career growth and leadership as the platform scales.
If you are excited about building the next generation of Web3 social experiences and want to make a meaningful impact from the earliest stages, we'd love to hear from you.