482 Backend Engineer jobs in Hong Kong

Hong Kong - Remote

As a Backend Engineer at 9GAG you will help to deliver the best-in-class products that transform how millions of people discover and collect inspiration everyday. You will need to support the development of our products. You will work side-by-side with product managers, designers, in-house developers and appreciate the details that make a user experience memorable, and demonstrate enthusiasm for new technologies.

Responsibilities

• Work closely with product managers, designers, in-house developers to build highly scalable and available digital products.
• Design robust high-level systems architecture and code structure to allow fast iterations and rapid growth.
• Provide technical advice on project specifications, documentation, scope, schedule, cost, quality, and measure of success.
• Hands-on development of new product features according to business requirements.
• Improve backend performance, carry out experiments and tests to help the team make data-informed decisions.
• Enthusiastic with new technologies and look for constant improvement of both technical performance and user experience.

Requirements

• Live our values - H2O: Hustle to go all-in to achieve the goal, work hard and work smart; Humble to embrace the better ideas of others; Open to welcome differences and possibilities.
• Excellent written and oral communication skills.
• Bachelor's degree in Computer Science or a related field, or equivalent work experience.
• Minimum 1 year of relevant experience is preferred.
• Expertise in NodeJS and Typescript.
• Knowledge of RDBMS, NoSQL, Message Queue, Caching and Edge Computing (Vercel / Cloudflare Workers).
• Knowledge of MVC/MVVM and API design.
• Able to work independently.
• Proficient to use AI tools to improve quality of works.

Bonus

• Experience in Web3.
• Experience in financial or trading industry

You can teach us something new We love to hire people who are way more knowledgeable than us in some areas and can be good teachers and mentors.

Benefits & Perks

We take care of our teammates to take great care of themselves and their families so we all can perform our best at work

• 100% remote work
• 25-day paid time off, 20-week maternity, 8-week paternity, plus family/pet care, marriage, birthday Leave, and more.
• US$1.5M Health insurance per teammate
• Life insurance
• Home Office Setup Allowance

Overview:

We are seeking a highly skilled Backend Engineer to design, build, and maintain the server-side components of our applications. The ideal candidate will have strong expertise in backend technologies, databases, APIs, and system architecture, with a focus on building scalable and high-performance solutions.

Key Responsibilities:

• Design, develop, and maintain backend services, APIs, and databases.
• Collaborate with front-end developers, product managers, and other stakeholders to deliver end-to-end solutions.
• Optimize application performance, scalability, and reliability.
• Implement security and data protection best practices.
• Write clean, maintainable, and testable code following best practices.
• Debug and resolve technical issues across development, testing, and production environments.
• Participate in code reviews and contribute to team knowledge sharing.
• Support deployment and monitoring of backend services.

Qualifications:

• Bachelors degree in Computer Science, Engineering, or related field (or equivalent experience).
• Proven experience as a Backend Engineer, Software Engineer, or similar role.
• Strong proficiency in one or more backend languages (e.g., Python, Java, Go, , C#).
• Experience with RESTful APIs, GraphQL, or gRPC.
• Knowledge of relational and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB, Redis).
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
• Solid understanding of software architecture, system design, and microservices.
• Experience with version control (Git) and CI/CD pipelines.

Nice-to-Have Skills:

• Exposure to event-driven systems and message queues (Kafka, RabbitMQ).
• Knowledge of monitoring and logging tools (Prometheus, Grafana, ELK).
• Understanding of DevOps practices and infrastructure-as-code (Terraform, Ansible).

Protection
Scalability
Salary
Reviews
Components
Reliability
Architecture
Developers
Databases
Security
Testing
Design

About the Company:

Join a pioneering force in Hong Kong's Fintech landscape. We are at the forefront of financial innovation, building cutting-edge solutions that empower businesses and redefine user experiences. Our culture thrives on collaboration, technical excellence, and a shared passion for solving complex challenges.

The Opportunity:

We are seeking a skilled and motivated Backend Engineer to play a pivotal role in our dynamic development team. You will architect, build, and scale the robust backend services that power our suite of internal and external applications. This is more than just a coding job; it's an opportunity to influence our technology stack, advocate for best practices, and see your work make a direct impact on our products and clients.

What You'll Do:

• Design, develop, and maintain high-performance, scalable backend services and APIs primarily using Java (with opportunities to work with Kotlin).
• Collaborate closely with frontend developers, product managers, and QA engineers in cross-functional teams to deliver end-to-end features from conception to deployment.
• Champion software excellence by implementing TDD (Test-Driven Development), DDD (Domain-Driven Design), and Clean Architecture principles to ensure scalable and maintainable code.
• Build and maintain efficient CI/CD pipelines to enable rapid and reliable releases.
• Actively participate in all Agile ceremonies (sprint planning, retrospectives, etc.) and contribute to the continuous improvement of our processes and systems.
• Take ownership of features and services throughout their entire lifecycle.

What We're Looking For:

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 4+ years of professional experience in software development with a strong focus on backend engineering.
• Proven expertise in Java; professional or project-based experience with Kotlin is a significant plus.
• Solid understanding and practical experience with TDD, DDD, and designing scalable system architecture.
• Hands-on experience with cloud platforms (e.g., AWS, GCP, or Azure) and cloud-native development.
• Experience with modern development tools and practices: CI/CD (Jenkins, GitLab CI, etc.), containerization (Docker, Kubernetes), and infrastructure-as-code.
• Excellent problem-solving skills, a collaborative mindset, and strong communication abilities.
• Ability to thrive in a fast-paced, agile environment and a passion for continuous learning.

Why Join Us?

• Impactful Work: Build products that are critical to the fintech ecosystem.
• Technical Excellence: Work in a team that values clean code, automation, and sustainable engineering practices.
• Growth & Learning: Be encouraged to explore new technologies (like Kotlin) and grow your skills in architecture and design.
• Great Culture: Join a supportive, collaborative, and dynamic team that celebrates success and learns from challenges.

Who we are is what we do.

Deel is the all-in-one payroll and HR platform for global teams. Our vision is to unlock global opportunity for every person, team, and business. Built for the way the world works today, Deel combines HRIS, payroll, compliance, benefits, performance, and equipment management into one seamless platform. With AI-powered tools and a fully owned payroll infrastructure, Deel supports every worker type in 150+ countries—helping businesses scale smarter, faster, and more compliantly.

Among the largest globally distributed companies in the world, our team of 6,000 spans more than 100 countries, speaks 74 languages, and brings a connected and dynamic culture that drives continuous learning and innovation for our customers.

Why should you be part of our success story?

As the fastest-growing Software as a Service (SaaS) company in history, Deel is transforming how global talent connects with world-class companies – breaking down borders that have traditionally limited both hiring and career opportunities. We're not just building software; we're creating the infrastructure for the future of work, enabling a more diverse and inclusive global economy. In 2024 alone, we paid $11.2 billion to workers in nearly 100 currencies and provided healthcare and benefits to workers in 109 countries—ensuring people get paid and protected, no matter where they are.

Our momentum is reflected in our achievements and customer satisfaction: CNBC Disruptor 50,  Forbes Cloud 100, Deloitte Fast 500, and repeated recognition on Y Combinator's top companies list – all while maintaining a 4.83 average rating from 15,000 reviews across G2, Trustpilot, Captera, Apple and Google.

Your experience at Deel will be a career accelerator. At the forefront of the global work revolution, you'll tackle complex challenges that impact millions of people's working lives. With our momentum—backed by a $2 billion valuation and 1 B in Annual Recurring Revenue (ARR) in just over five years—you'll drive meaningful impact while building expertise that makes you a sought-after leader in the transformation of global work.

As part of that mission, we're building our own financial infrastructure — including a global, cross-border payment system. We already process billions of dollars in payouts annually, empowering hundreds of thousands of workers and serving tens of thousands of businesses worldwide, including Nike, Klarna, Reebok, and Forever21. Now, we're doubling down on building native financial rails to support payroll, treasury, and compliance at scale — from onboarding to settlement and looking for talent to join us

What You'll Do

• Collaborate in a Cross-Functional Team: Work closely with Frontend Engineers, Product Teams, Designers, and QA professionals to create seamless experiences.
• Participate in Product Planning: From discovery to deployment, we value your input throughout all stages of the Software Development Lifecycle.
• Develop and Enhance Features: Collaborate to develop robust new features, APIs, and continuously improve our industry-leading products. Help find and fix bugs at "Deel Speed."
• Provide an Exceptional, Customer-Centric Experience: Ensure top-tier products and services through quality engineering and attentive, customer-focused development.
• Solve complex fintech problems: Build modern, resilient systems that power Deel's financial infrastructure at global scale.
• Build at scale: Design and evolve APIs, services, and infrastructure to support high-transaction volumes.

Must Have

• Professional experience in fintech or financial domains: e.g., payments, accounting, exchanges, banking, or crypto.
• Worked in or built systems for other financial focused companies".
• Familiarity with compliance-sensitive environments: KYC (Know Your Customer), AML (Anti-Money Laundering), transaction monitoring, or regulatory reporting.

What You Bring

• Solid Backend Development Skills: Proficiency in and TypeScript/JavaScript, with an understanding of server-side principles. Experience with at least one additional backend language is a plus.
• Strong SQL Foundation: Comfortable working with PostgreSQL or similar relational databases. You've written complex queries, handled data migrations, and contributed to data model design.
• Good Understanding of OOP and Patterns: You apply object-oriented programming principles and use common design patterns in your development workflow.
• Hands-on API Development Experience: You've built and maintained RESTful APIs, implemented input validation, used JWT or similar authentication mechanisms, and worked with queue-based systems for async processing.
• Performance-Aware: You understand the basics of concurrency, idempotency, and how to write code that scales efficiently under moderate load.
• Team Contributor: 3+ years of experience as a backend or full-stack engineer, ideally in a product-focused or startup environment. You're collaborative, curious, and open to learning from senior engineers.

You're a Great Fit If You

• Thrive in designing, coding, testing, and maintaining high-quality applications.
• Excel in remote, async collaboration and distributed teams.
• Take ownership while collaborating toward shared success.
• Communicate clearly with technical and non-technical stakeholders.
• Approach problems with optimism and user-centric thinking.
• Deliver business value through product-focused development.
• Embody Deel's core value of Genuine Care.

Bonus Points

• Experience with SaaS products running 24/7 on major cloud vendors.
• Familiarity with serverless architecture on AWS.
• Understanding of fintech industry challenges and constraints.
• Experience in treasury, FX, reconciliation, or accounting software.
• Built or integrated payment gateways, exchanges, or ledgers.
• Exposure to compliance and audit-focused systems like SOC2, SOX.

Total Rewards

Our workforce deserves fair and competitive pay that meets them where they are. With scalable benefits, rewards, and perks, our total rewards programs reflect our commitment to inclusivity and access for all.

Some things you'll enjoy

• Stock grant opportunities dependent on your role, employment status and location
• Additional perks and benefits based on your employment status and country
• The flexibility of remote work, including optional WeWork access

At Deel, we're an equal-opportunity employer that values diversity and positively encourage applications from suitably qualified and eligible candidates regardless of  race, religion, sex, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, pregnancy or maternity or other applicable legally protected characteristics.

Unless otherwise agreed, we will communicate with job applicants using Deel-specific emails, which include and other acquired company emails like and You can view the most up-to-date job listings at Deel by visitingour careers page.

Deel is an equal-opportunity employer and is committed to cultivating a diverse and inclusive workplace that reflects different abilities, backgrounds, beliefs, experiences, identities and perspectives.

Deel will provide accommodation on request throughout the recruitment, selection and assessment process for applicants with disabilities. If you require accommodation, please inform our Talent Acquisition Team at of the nature of the accommodation that you may require, to ensure your equal participation.

We use Covey as part of our hiring and/or promotional processes. As part of the evaluation process, we provide Covey with job requirements and candidate-submitted applications. Certain features of the platform may qualify it as an Automated Employment Decision Tool (AEDT) under applicable regulations. For positions in New York City, our use of Covey complies with NYC Local Law 144.

We began using Covey Scout for Inbound on March 30, 2025.

For more information about our data protection practices, please visit our Privacy Policy. You can review the independent bias audit report covering our use of Covey here:

Apply for this Job

About the Role

We are seeking an experienced Backend Engineer to design and build scalable, secure, and high-performance systems for our financial technology platforms. You will play a key role in building APIs, improving system reliability, and collaborating with cross-functional teams to deliver world-class products.

Key Responsibilities

• Design and develop backend APIs and microservices for transaction processing, account management, and authentication.
• Optimize systems for performance, security, and scalability.
• Write and maintain automated tests to ensure system stability and reliability.
• Collaborate closely with front-end engineers, product managers, and QA teams to deliver high-quality solutions.
• Participate in code reviews and contribute to engineering best practices.

What We're Looking For

• Strong technical foundation in backend development.
• Experience in fintech, payment systems, or digital financial platforms.
• Proficiency in one or more modern programming languages such as Java, Kotlin, or Go.
• Experience working with relational or NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Strong debugging, troubleshooting, and performance tuning skills.
• Effective communication and collaboration abilities in a team environment.
• Passion for Web3 technologies and innovation

Nice-to-Have (Bonus Points)

• Exposure to Web3 technologies or smart contract frameworks (e.g., Solidity, Rust, Web3).
• Knowledge of secure system design and data privacy principles.
• Familiarity with Agile development practices (Scrum, Kanban, etc.).

What We Offer

• The opportunity to work on cutting-edge financial technology products.
• A collaborative and innovative team culture.
• Room for professional growth and exploration of emerging technologies such as Web3.

About us

Bitkernel Technology Limited is a leading provider of innovative web3 solutions. Our mission is to empower individuals and businesses to thrive in the decentralized economy. With a talented team of engineers, designers, and strategists, we are at the forefront of the web3 revolution, building cutting-edge applications that are transforming the way people interact with finance, commerce, and digital assets.

If you're excited to join our dynamic team and contribute to the future of web3, we encourage you to apply now.

OVERVIEW

RESPONSIBILITIES

REQUIREMENTS

We are looking for a passionate back-end engineer willing to participate in development of the leading US-based freight analytics and transportation management company. Here, you'll be able to participate in the modernisation of technical infrastructure, helping our client match 'loads' to be delivered with available carriers, topping at $150B worth of transactions annually. You will work alongside Zoolatech's best engineers, embracing the technology-agnostic approach and back-end mindset. Additionally, this is your chance to be the real contributor and influencer for the client that has been on the forefront of US logistical market for nearly 50 years.

And then there's Zoolatech Just imagine a workplace and a team environment that you never want to leave once you have found it. Sound enticing? Apply to our position today, and we can get you there.

We are building a team of strong engineers who can build next-gen solutions for the best clients in the industry. Join us

An Engineer is part of a team of professionals that applies software engineering principles to design, build, and maintain technology products, systems, and solutions. These technology products and solutions provide exceptional customer experiences while meeting the growing needs of the business.

We are looking for engineers who are willing to take on new challenges and work in the technology-agnostic landscape. You will be tasked with modernising the legacy BE system to make it compatible with the modern stack of choice and introduce new business features. Your squad is to comprise of 5 engineers and a dedicated technical program manager.

High-level responsibilities:

• Participate and contribute to the high-paced delivery of critical projects.
• Build elegant, robust, scalable, 99% available, and extensible systems.
• Write highly maintainable clean code for web services, web apps, and cloud infrastructure following secure coding practices.
• Demonstrate a foundational understanding of standards, concepts, and principles of engineering to solve the practical needs of the business.
• Validate all scenarios and conform to code quality through the complete and automated unit, integration, and end-end testing.
• Identify performance issues and optimize solutions and infrastructure.
• Ensure adherence to Engineering best practices for all the solutions.
• Mentor junior members of the team and raise the bar for technical knowledge
• Collaborate with other software engineers on design, best practices and conduct code reviews.

KEY QUALIFICATIONS

• Bachelor's or master's degree in CS, Engineering or equivalent practical experience.
• Strong experience in operational excellence (health monitoring, operational metrics)
• Great design and problem-solving skills, with a strong bias for engineering excellence
• Good knowledge of software engineering practices, SDLC, build process and operations
• Strong written and verbal communication skills
• Always curious and passionate about learning newer and emerging technologies
• Commitment to deliver results by untangling ambiguity with great problem-solving and analytical skills

Must-have:

• Experience with JS, , TypeScript, any BE framework;
• Skilled at API development and best practices (testing, documenting, versioning, monitoring);
• Contributed to the design, development, validation, deployment, and monitoring of one or more features for a cloud service running at scale in production;
• Experience with GraphQL, preferably with Apollo Client;
• Experience with CI/CD including all kinds of automated testing.

Nice to have:

• Experience with event-driven solutions;
• Experience with FE development using Angular and possibly other frameworks;
• Experience with AWS cloud services (preferably Kinesis and EKS);
• Experience with mentoring junior team members.

Location:

Other, Central Europe

Seniority:

Middle

Technologies:

Benefits:

• Paid Vacation
• Sick Days
• Floating Holidays
• Sport/Insurance Compensation
• English Classes
• Charity
• Training Compensation

Overview

The Flex is reimagining the global rental market. We believe renting a home should be as simple as buying something online. Our mission is to give tenants the freedom to rent anywhere in the world, while empowering landlords with powerful, easy-to-use tools that eliminate complexity and high fees. We’re building a team of ambitious A-Players ready to scale The Flex into a worldwide leader in flexible living. If you thrive in fast-paced environments and want to engineer the core systems that power modern rentals, this role is for you.

As a Backend Engineer , you’ll play a critical role in building the infrastructure that powers reservations, payments, guest communications, and property operations. You will focus on designing scalable systems, API integrations, and automation tools that ensure our platform runs smoothly and efficiently at a global scale.

• API Development: Design and optimize APIs to integrate with booking platforms, payment gateways, and third-party services.
• Workflow Automation: Build backend tools to streamline check-ins, check-outs, notifications, and reporting.
• System Architecture: Develop scalable, serverless systems that support global rental operations.
• Data & Reliability: Ensure data accuracy, system resilience, and efficient database management.
• Debugging & Problem Solving: Investigate and resolve issues across backend services and integrations.
• Cross-Team Collaboration: Work with product and operations to ensure backend solutions solve real-world challenges.
• Code Quality: Maintain high standards through testing, code reviews, and CI/CD pipelines.

• Strong proficiency in Node.js and experience with cloud platforms (AWS preferred).
• Experience with serverless architecture and backend scalability.
• Strong understanding of API design and system integrations.
• Familiarity with FastAPI, Python, or scripting (bonus).
• Background in automation systems (real estate, rentals, or travel is a plus).
• Strong analytical skills, attention to detail, and proactive mindset.

• Build core backend systems for a high-growth global platform.
• Work in an environment that rewards ambition and innovation.
• Competitive pay with performance-based incentives.
• Accelerated professional growth in a hands-on, entrepreneurial team.

• Seniority level: Entry level
• Employment type: Full-time
• Job function: Engineering and Information Technology

Referrals increase your chances of interviewing at The Flex. Get notified about new Back End Developer jobs in Hong Kong SAR .

Who we are is what we do.

Deel is the all-in-one payroll and HR platform for global teams. Our vision is to unlock global opportunity for every person, team, and business. Built for the way the world works today, Deel combines HRIS, payroll, compliance, benefits, performance, and equipment management into one seamless platform. With AI-powered tools and a fully owned payroll infrastructure, Deel supports every worker type in 150+ countries—helping businesses scale smarter, faster, and more compliantly.

Among the largest globally distributed companies in the world, our team of 6,000 spans more than 100 countries, speaks 74 languages, and brings a connected and dynamic culture that drives continuous learning and innovation for our customers.

Why should you be part of our success story?

As the fastest-growing Software as a Service (SaaS) company in history, Deel is transforming how global talent connects with world-class companies – breaking down borders that have traditionally limited both hiring and career opportunities. We're not just building software; we're creating the infrastructure for the future of work, enabling a more diverse and inclusive global economy. In 2024 alone, we paid $11.2 billion to workers in nearly 100 currencies and provided healthcare and benefits to workers in 109 countries—ensuring people get paid and protected, no matter where they are.

Our momentum is reflected in our achievements and customer satisfaction: CNBC Disruptor 50,  Forbes Cloud 100, Deloitte Fast 500, and repeated recognition on Y Combinator's top companies list – all while maintaining a 4.83 average rating from 15,000 reviews across G2, Trustpilot, Captera, Apple and Google.

Your experience at Deel will be a career accelerator. At the forefront of the global work revolution, you'll tackle complex challenges that impact millions of people's working lives. With our momentum—backed by a $2 billion valuation and 1 B in Annual Recurring Revenue (ARR) in just over five years—you'll drive meaningful impact while building expertise that makes you a sought-after leader in the transformation of global work.

Get ready to:

• Build and maintain automation services that connect internal tools, third-party platforms, and messy data pipelines
• Power intelligent workflow orchestration for our Payroll team

You'll bring:

• 8+ years of experience in software engineering with an integration/automation focus
• Strong experience
• API integration and data transformation skills
• Experience working with automation frameworks (e.g., Selenium, Playwright, Puppeteer, e2b, n8n)
• Comfortable handling messy, unreliable data from multiple sources

Bonus if you have:

• React experience for building internal UIs
• RPA tools background
• Workflow orchestration familiarity (Zapier, n8n, etc.)
• Deep experience with file parsing and data extraction (PDFs, Excel, CSVs)

Total Rewards

Our workforce deserves fair and competitive pay that meets them where they are. With scalable benefits, rewards, and perks, our total rewards programs reflect our commitment to inclusivity and access for all.

Some things you'll enjoy

• Stock grant opportunities dependent on your role, employment status and location
• Additional perks and benefits based on your employment status and country
• The flexibility of remote work, including optional WeWork access

At Deel, we're an equal-opportunity employer that values diversity and positively encourage applications from suitably qualified and eligible candidates regardless of  race, religion, sex, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, pregnancy or maternity or other applicable legally protected characteristics.

Unless otherwise agreed, we will communicate with job applicants using Deel-specific emails, which include and other acquired company emails like and You can view the most up-to-date job listings at Deel by visitingour careers page.

Deel is an equal-opportunity employer and is committed to cultivating a diverse and inclusive workplace that reflects different abilities, backgrounds, beliefs, experiences, identities and perspectives.

Deel will provide accommodation on request throughout the recruitment, selection and assessment process for applicants with disabilities. If you require accommodation, please inform our Talent Acquisition Team at of the nature of the accommodation that you may require, to ensure your equal participation.

We use Covey as part of our hiring and/or promotional processes. As part of the evaluation process, we provide Covey with job requirements and candidate-submitted applications. Certain features of the platform may qualify it as an Automated Employment Decision Tool (AEDT) under applicable regulations. For positions in New York City, our use of Covey complies with NYC Local Law 144.

We began using Covey Scout for Inbound on March 30, 2025.

For more information about our data protection practices, please visit our Privacy Policy. You can review the independent bias audit report covering our use of Covey here:

Apply for this Job

Key responsibilities:

• Plan, design and develop backend and peer-to-peer services for Auki Labs and The Posemesh Foundation.
• Assist with road-map planning related to the development of the Posemesh SDK, backend services and other Auki Labs products.
• Work with performance optimization.
• Collaborate with other Auki Labs tears on DevOps, Site Reliability Engineering, testing and implementation of end-to-end solutions.
• Stay up to date with the industry and provide suggestions, advice and best practices accordingly.

Requirements:

• At least 5 years of experience as a Lead Backend Engineer or Senior Backend Engineer in a result-ariented and strong engineering team.
• Golang. Most parts of our backend are written in Go, so this is a requirement.
• Experience with Rust or C++ as we are using these languages to build our new decentralized peer-to-peer services.
• Strong software architecture skills and knowledge of software design patterris like MVC, MVCS, SOLID You're able to think ahead and create modular and decoupled designs that make it easier to collaborate, iterate and grow.
• Experience building services that are capable of serving tens of thousands to millions of concument
• Experience with relational databases (we're using PostgreSQL), caches (Redis) and message queues.
• Well-proven knowledge of networking protocols like TCP, UDP, QUIC, WebSockets, WebTransport
• Experience building asynchronous real-time services is a big plus.
• Experience with networking libraries such as libp2p and ZeroMQ is a big plus.