QA Engineer

Assistant Engineer or Graduate Engineer - Civil Engineering

-To Prepare structural design and drawings; -To attend project progress meetings and workshops; -To coordinate with Contractor. To attend project progress meetings and workshops; To coordinate with Contractor and check if the works is in compliance with the contract Requirements Must-have - Good command of both spoken and written English and Chinese - Bachelor Degree in Civil/ Structural/ Geotechnical Engineering Discipline; - Min. 2 years relevant experience in structural engineering design in steelwork, structural concrete and foundation; - Proficiency in ETABS, SAFE and AutoCAD Benefits - Working location: Tsuen Wan District, Hong Kong - Working days: 5 per week - Work Travelling: No - Medical insurance - On Job Training

Negotiable Salary

WATI.io

Software Engineer II - Backend

Hong Kong

About Us Wati is the world's leading WhatsApp-first conversational growth platform, empowering businesses to build deeper customer relationships and accelerate revenue growth. Trusted and loved by over 14,000 customers across 100+ countries, Wati has established itself as the premier choice for businesses leveraging WhatsApp and other messaging channels to connect with customers on their platform of choice. In a world where real-time interactions drive growth, Wati's story is all about business growth through conversations. At Wati, we believe that every conversation matters, whether it's engaging a first-time prospect, nurturing a qualified lead, or deepening relationships with loyal clients. We transform these conversations into opportunities for building relationships, and strong relationships lead to increased revenue. Our Platform The AI-native platform simplifies complex business operations by bringing all customer interactions under one intelligent roof. Designed for scalability and ease of use, our solution delivers a measurable ROI while adapting to businesses of all sizes, from emerging startups to established enterprises. Our Backing & Partnerships Wati is proudly backed by world-class investors including Tiger Global, Sequoia Capital, DST Global, and Shopify. As a Premium-tier Partner of Meta, Google, and WhatsApp, we maintain the highest standards of integration and platform excellence. As Wati continues to scale rapidly, we're looking for a Software Engineer II - Backend to work closely with Development, QA, DevOps, Support and Product. You are a leader that will participate in senior technology strategy discussions, drive ideation across a distributed software team, develop implementation roadmaps and work with technical individuals to transform this into software products and solutions. What you’ll do: Refactor, test, and maintain components of our monolithic C# application, gradually migrating critical services to Golang microservices with clean, reusable, and efficient code. Design, develop, and deploy high-traffic distributed systems (e.g., REST/gRPC APIs, event-driven workflows, data pipelines) using Go and C#, ensuring fault tolerance and resilience. Improve latency, throughput, and resource efficiency in both legacy C# and modern Go services, leveraging caching (Redis), message brokers (Kafka/RabbitMQ), and database optimization. Collaborate with cross-functional teams, including design, product, and QA, to deliver a seamless and engaging user experience. Partner with DevOps to streamline CI/CD pipelines, QA to automate testing, and Product to align technical solutions with business requirements. Participate in system design reviews, advocate for scalable patterns (e.g., circuit breakers, load balancing), and ensure security best practices (auth, RBAC, encryption). Troubleshoot and resolve backend performance, scalability, and reliability challenges in production environments. Lead code reviews, mentor junior engineers, and champion standards for maintainable code across C# and Go codebases Requirements Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent practical experience. 5+ years of backend development experience, including: 2+ years with C# (.NET Core, ASP.NET, Entity Framework) in monolithic architectures. OR 1+ years with Golang (Gin, Echo, Goroutines, Go modules) or strong willingness to learn. Expertise in distributed systems: REST/gRPC APIs, microservices, message brokers (Kafka/RabbitMQ), and caching (Redis). Proficiency in database design and optimization (SQL: PostgreSQL/MySQL; NoSQL: MongoDB). Hands-on experience with cloud platforms (AWS/Azure/GCP), containerization (Docker/Kubernetes), and CI/CD pipelines (GitHub Actions/Jenkins). Strong understanding of security practices: authentication/authorization (JWT, OAuth), RBAC, and data encryption. Fluency in English with excellent communication skills to collaborate across global teams. What will make you stand out: Hands-on experience coding with tools like GitHub Copilot, Cursor, or other AI-assisted development environments. Proven track record of building and launching products from 0 to 1. Prior experience developing overseas or export-focused applications. Experience with serverless architectures (e.g., AWS Lambda) or microservices architectures. Knowledge of event-driven systems (e.g., Kafka, RabbitMQ). Prior work on scalable, high-traffic applications.

As our DevOps Engineer, you will be helping us build and maintain blockchain networks and protocols. You will work on improving our current infrastructure including security, automation, and monitoring among other things. You will also have the chance to dive deep into new blockchain protocols, run testnets, build secure and scalable infra and maintain it. What will you do? Build secure and reliable infrastructure to monitor, detect and mitigate performance and security issues System administration activities for Linux servers, which includes routine, proactive daily management of the health, stability, and availability of system infrastructure Create and maintain system procedural and technical documentation Stay up to date and build on peer-to-peer networking security best practices Create, maintain and communicate threat models + risk assessments for all systems we operate What excites us about you? You have experience as DevOps/SRE/Infrastructure engineer You have the ability to program in one or more languages like Python, GoLang, Bash or Javascript You have experience managing server infrastructures with high availability requirements You had designed secure networks, systems, and application architectures You had set up and maintained software in both data centers and cloud environments You have a deep understanding of sockets, full networking stack, and Linux security You possess the knowledge of building automation and CI/CD processes and tools You are experienced with Docker, Kubernetes, and other cloud deployment technologies You have flexibility, teamwork, and you are comfortable with ambiguity, able to take charge and get things done despite the unknowns What will be great to have? You have an understanding of the blockchain space and blockchain technology You possess knowledge of cryptography and security best practices You have contributions to open source communities If those describe you, this is the right opportunity for you! Why are we awesome you ask? We are truly at the forefront of the crypto ecosystem as maintainers of the infrastructure layer of blockchain networks! We practice the crypto team mentality by assembling a truly global and diverse team. We collectively represent more than 12 different countries and are united in a single mission: building out the future of decentralization. Crypto is here to stay, having introduced novel ideas such as DeFi, NFTs and DAOs. At the core of all this are teams like us working relentlessly to build the necessary tools and applications that help run and secure blockchains. Here are some other reasons you should join us: We have employees from over 10 countries across the globe, and you will be able to meet interesting people from different backgrounds and cultures. Distributed and remote work is baked into our culture. We are one of the top staking service providers with over $3B of assets staked across our validators. We actively explore and develop new products related to staking. You will work on high-impact engineering projects building exciting new products in a startup environment. We have a capable and passionate team. You will find teammates who are power DeFi users, intense NFT collectors, Bitcoin & Ethereum knowledge nerds, etc. You can learn and debate everything on crypto with our teammates. We are not backed by VC funding, and we are already profitable. Our financial independence means that we can make decisions independent of VCs, and we prioritize our ideals of decentralization, user sovereignty, and user privacy over simply making a profit. It also means that, unlike most other startups, stakefish can provide you with a stable low-risk employment opportunity without fundraising concerns.

Negotiable Salary

QA Engineer

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