Senior Software Developer - Ruby on Rails
Hong Kong
Full time
Hybrid
Compensation is not specified
Role
Backend Engineer
Description
Summary
Our team is dedicated to crafting, enhancing, and sustaining software for diverse venture projects. These projects are closely aligned with our core businesses and are rapidly developed with an efficient team. As a key contributor, you will actively participate in designing various components of scalable applications, spanning from frontend UI to backend infrastructure.
Key Responsibilities
- Develop backend services, propose architectural decisions, engage in designs, code reviews, and implement products catering to both developers and end-users without external links
- Enhance our retail trading products and extend our reach to new regions
- Address complex issues within large-scale backend systems and provide reliable trading information streams
- Offer technical operational support and promote innovation through new technologies
- Collaborate with DevOps and Infra teams to enhance long-term engineering initiatives
- Maintain documentation for all implemented code and functionalities
Requirements
- Passion for building top-notch products, proficient in various technologies, self-driven with a proactive attitude
- Willingness to embrace diverse ideas, strive for continuous improvement and tackle challenges head-on
- Exceptional organizational and interpersonal skills, capable of managing conflicting requirements effectively
- Familiarity with financial domain knowledge or Blockchain technology is beneficial
- Proficiency in Ruby, familiarity with other programming languages is advantageous
- Knowledge of Postgres, Redis, Kafka is preferred
- Experience in scalability, security, and performance optimization
Life @ Crypto.com
- Offers a proactive and transformational work environment with opportunities for professional growth
- Encourages employees to think big and explore new challenges with the talented team
- Supports internal mobility and flexibility in work arrangements
- Provides work perks, competitive salary, and attractive leave entitlements
Benefits
- Competitive salary and attractive annual leave entitlements
- Flexibility in work hours with hybrid or remote setups
- Internal mobility program for career growth opportunities
- Special perks including the crypto.com visa card
If you are eager to embark on a journey with us and drive your career forward, kindly reach out to our talent acquisition team for region-specific benefits information.
About Crypto.com
Pioneering cryptocurrency platform, founded in 2016, serving millions of customers worldwide. Committed to the vision of Cryptocurrency in Every Wallet™ through innovation and empowerment. Encourages diversity, inclusivity, and fairness within the team.
Note: Personal data shared by applicants will only be used for recruitment processes. Only shortlisted candidates will be contacted.
Skills Required
Сrypto.com
Website
Сrypto.comCompany size
Not specified
Location
United States
Description
Not specified
Hoi Vo
Developer bot
Full time
Remote
I'm looking for a telegram bot Developer, please contact me on telegram if you are ready to build a bot, just a sample bot and no much coding need
Here is my telegram id @EIonmuskkkk
Here is my telegram id @EIonmuskkkk
Payment in Crypto
Lester Ramírez
I am looking for an Android developer to work on a project using Firebase Studio with Dart.
Part time
Remote
I am looking for an Android developer to work on a project using Firebase Studio with Dart. Currently, payment will be based on small task packages worth $5 in ETH each, with opportunities for higher wages as the company grows and generates more revenue.
Contact me on Telegram: t.me/LesterRF
Contact me on Telegram: t.me/LesterRF
Payment in Crypto
Ian Fox
Need SEO expert to get us to Google first page rank
Full time
Remote
I need an SEO expertteam who is capable of getting our shops to Google first page rank on our desired keywords
Payment in Crypto
Quinn Bosnie
Have you built token launch platforms or bonding curves on Solana before?
Amsterdam, Netherlands
Amsterdam, Netherlands
Full time
Remote
Hey, I’m launching a project a secure, user-friendly memecoin launchpad on Solana that fixes the problems with platforms like Pump.fun (rug pulls, no LP locks, devs dumping). I’m looking for a Solana smart contract dev (or full-stack) to help me build an MVP. This includes:• Token creation with a dev wallet cap (max 5%)• Bonding curve or simple fair launch system• Auto liquidity lock for 3 months• Optional blue badge verification (paid upgrade)• Raydium listing or integration I’d love to know if you’ve worked on similar Solana or DeFi projects. If you’re interested, I can send a quick brief + we can chat timelines and budget. Let me know — I’m ready to move fast if you’re a good fit
Market Maker
Technical Cofounder – Mobile App Lead (Equity Role)
Full time
Hybrid
Looking for a Tech Cofounder (Mobile App Developer)
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.
Equity + Leadership Role | Remote | Africa-focused
We’re building something bold — a platform designed to empower everyday people through real-world commerce and daily utility. The concept is built, the community is growing, and the brand is already in motion. Now, we’re ready to build the MVP.
We’re looking for a technical cofounder — someone with the skill to build and the vision to lead.
What You’ll Own:
• Lead the mobile app development (Android-first; iOS optional for now)
• Build core features: user registration, listings, wallet logic, escrow integration, and payments
• Collaborate on product direction and tech decisions
• Scale with the company as a core part of the founding team
Ideal Experience:
• You’ve built marketplace-style or P2P mobile apps before
• You’re comfortable with payment APIs like Paystack, Flutterwave, or others
• You understand how to work with wallets, escrow flows, and multi-user platforms
• You’re not just a builder — you want to grow with a brand and own a meaningful slice of it
Your Role Is Not Freelance.
This is a cofounder opportunity — you’ll help shape the product, tech stack, and long-term vision. You’ll receive equity and work closely with the founding team to build a scalable African-first product.