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Recruit Ref: L0597146625
Posting Date: 2025-04-16
Qupital Limited
Senior Technical Lead / Solutions Architect

About the Role

We are seeking an experienced Senior Technical Lead / Solutions Architect with strong Web3 expertise to join our Technology team. In this role, you will lead the technical vision and implementation of our Web3 and cloud-native applications while ensuring best practices in security, scalability, and cost optimization. You will be responsible for managing a team of engineers, designing system architecture for blockchain-based applications, and establishing engineering processes that enable rapid, secure development in both traditional and decentralized environments.

Responsibilities

  • Lead and mentor a team of 4-5 engineers, providing technical direction and career development through regular 1:1s and code reviews.

  • Design and implement cloud-native architectures on AWS using serverless technologies, containers, and microservices that integrate with blockchain networks.

  • Build scalable Web3 applications that interact with smart contracts, NFT marketplaces, and DeFi protocols.

  • Establish and enforce engineering best practices including CI/CD, unit testing, and code quality standards.

  • Optimize cloud infrastructure costs while maintaining high availability and performance metrics (99.9%+ SLA).

  • Implement and manage robust security postures, including threat mitigation, compliance frameworks, and vulnerability management.

  • Architect scalable database solutions using PostgreSQL, MySQL, Redis, and other technologies as needed.

  • Build and optimize high-performance APIs and backend systems capable of handling millions of requests.

  • Collaborate with product management to define technical requirements and implementation strategies.

  • Drive DevSecOps initiatives, integrating security into the development lifecycle.

Requirements

  • 8+ years of experience in software engineering roles with at least 3 years in technical leadership positions.

  • Strong expertise in AWS services, including Lambda, ECS, EC2, RDS, S3, SQS, and CloudFormation/ Terraform.

  • Proficiency in multiple programming languages such as Python, Node.js, TypeScript, and PHP.

  • Experience building and scaling applications using frameworks like FastAPI, NestJS, Django, and Express.

  • Deep understanding of database technologies including PostgreSQL, MySQL, Redis, and time-series databases.

  • Proven track record of implementing CI/CD pipelines and DevOps best practices.

  • Experience with security best practices, vulnerability management, and compliance frameworks.

  • Strong system architecture skills with the ability to design scalable, resilient systems.

  • Experience with monitoring, logging, and observability tools.

  • Excellent communication skills and ability to translate complex technical concepts to stakeholders.

  • Minimum 1 year of experience with Web3 technologies, including:
    - EVM (Ethereum Virtual Machine) and smart contract development/integration
    - Working with blockchain libraries like ethers.js or web3.js
    - Experience with DeFi protocols and mechanismsNFT development and implementation (minting, trading systems, metadata standards)
    - Knowledge of blockchain security practices and common vulnerabilities

Preferred Qualifications

  • Advanced knowledge of Web3 ecosystems and multi-chain architectures.

  • Experience with Solidity smart contract development and auditing.

  • Familiarity with crypto wallets integration and Web3 authentication.

  • Understanding of tokenomics and token distribution mechanisms.

  • Knowledge of infrastructure-as-code using Terraform.

  • Familiarity with containerization technologies like Docker and orchestration with Kubernetes/ECS.

  • Experience with performance optimization and load testing.

  • AWS certifications (Solutions Architect, DevOps Engineer, Security Specialty).

  • Experience mentoring junior engineers and fostering team growth.

  • Background in security engineering or cloud security best practices.

Benefits:

  • 5-Day Work Week

  • Flexible Working Hours

  • Discretionary Performance Bonus

  • Annual Leave & Birthday Leave

  • Medical & Dental Insurance Coverage


Summary
Industry:
Others 
Job Category / Function:
Job Position Level:
General 
Employment Term:
Full Time 
Min. Edu. Level Req:
-- 
Minimum QF Level attained:
-- 
Total Working Exp:
-- 
Salary(HKD):
--
Location:
Sham Shui Po District / Lai Chi Kok
Benefits:
  • 5-Day Work
  • Birthday Leave
  • Dental Insurance
  • Flexible Working Hours
  • Performance Bonus
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