1 062 Developer Specialist jobs in Vietnam

Our client is seeking a highly skilled and motivated Senior Blockchain Developer with a specialization in Decentralized Finance (DeFi) to join their innovative team. This is an exciting opportunity to work on cutting-edge blockchain technologies and contribute to the development of secure and scalable DeFi solutions. As a Senior Blockchain Developer, you will be instrumental in designing, developing, and deploying smart contracts, participating in architectural decisions, and ensuring the integrity and performance of our blockchain applications. The ideal candidate will possess a deep understanding of blockchain principles, consensus mechanisms, and various blockchain platforms. You will collaborate closely with product managers, designers, and other engineers to translate complex requirements into robust technical solutions. Responsibilities will include writing high-quality, well-tested code for smart contracts (Solidity preferred), developing and maintaining decentralized applications (dApps), implementing and optimizing blockchain protocols, conducting thorough code reviews, and troubleshooting and debugging issues in production environments. Furthermore, you will stay abreast of the latest trends and advancements in the blockchain and DeFi space, contributing to technical documentation and knowledge sharing within the team. This role requires strong analytical and problem-solving skills, excellent communication abilities, and a passion for innovation in the blockchain ecosystem. You will be working in a dynamic environment that encourages creativity and continuous learning. The position is based in **Pleiku, Gia Lai, VN**, with a hybrid work arrangement, offering a blend of in-office collaboration and remote flexibility. Minimum of 5 years of professional software development experience, with at least 3 years focused on blockchain development, is required. A Bachelor's degree in Computer Science, Engineering, or a related field is preferred.

Our client is seeking a highly skilled and experienced Senior Blockchain Developer with a specialization in Decentralized Finance (DeFi). This is a fully remote position, offering the flexibility to work from anywhere. You will be instrumental in designing, developing, and deploying cutting-edge blockchain solutions, with a strong focus on creating robust and secure DeFi protocols. Your responsibilities will include architecting smart contracts on platforms like Ethereum and Binance Smart Chain, integrating with various DeFi aggregators and lending protocols, and ensuring the highest standards of security and performance. You will collaborate closely with product managers, designers, and other engineers in an agile environment. Key tasks involve developing decentralized applications (dApps), conducting thorough code reviews, implementing token standards (ERC-20, ERC-721, etc.), and staying abreast of the latest advancements in blockchain technology and the DeFi space. The ideal candidate possesses a deep understanding of blockchain architecture, consensus mechanisms, cryptography, and smart contract security best practices. Experience with Solidity, Web3.js, Truffle, Hardhat, and relevant programming languages such as JavaScript or Python is essential. A proven track record of successfully launching DeFi projects is highly desirable. We are looking for a proactive problem-solver with excellent communication skills and a passion for innovation in the Web3 ecosystem. Join a dynamic team dedicated to pushing the boundaries of decentralized finance. Our client values collaboration, continuous learning, and a commitment to delivering high-quality, impactful products. The opportunity to shape the future of finance is here, all while enjoying the benefits of a truly remote work setup. Your expertise will directly contribute to the growth and success of our groundbreaking projects. We are excited about the prospect of you joining our globally distributed team and contributing to our mission.

Our client is looking for an accomplished Senior Frontend Developer with specialized expertise in React to join their innovative and fully remote engineering team. You will play a key role in designing, developing, and implementing user-facing features for our cutting-edge web applications. This position demands a deep understanding of modern JavaScript frameworks, responsive design principles, and a passion for creating seamless, high-performance user experiences. You will collaborate closely with UI/UX designers, backend developers, and product managers to translate complex requirements into elegant and functional code.

Key responsibilities include building reusable components and frontend libraries, optimizing applications for maximum speed and scalability, and ensuring the technical feasibility of UI/UX designs. You will also be responsible for writing clean, maintainable, and well-documented code, conducting code reviews, and staying abreast of emerging frontend technologies and best practices. Experience with state management libraries (e.g., Redux, Zustand), build tools (e.g., Webpack, Vite), and testing frameworks (e.g., Jest, React Testing Library) is highly desirable. Proficiency in HTML5, CSS3, and responsive design techniques is a must. A Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience, is required. A minimum of 5 years of professional frontend development experience, with a strong focus on React, is essential. Excellent problem-solving skills, attention to detail, and strong communication and collaboration abilities are crucial for success in this remote team environment. This is an outstanding opportunity to work on challenging projects, contribute to a product with global reach, and grow your career in a flexible, fully remote setting.

Our client is seeking a highly experienced Senior Blockchain Developer with a specialization in Decentralized Finance (DeFi) to join their globally distributed, remote-first team. This pivotal role involves architecting, developing, and deploying cutting-edge smart contracts and decentralized applications on various blockchain networks. You will be instrumental in shaping the future of financial technologies, working with protocols such as Ethereum, Binance Smart Chain, Polygon, and more.

Responsibilities:

• Design, develop, test, and deploy secure and efficient smart contracts using Solidity.
• Build and maintain decentralized applications (dApps) and their associated backend infrastructure.
• Integrate blockchain technologies with existing systems and third-party services.
• Collaborate with product managers, designers, and other engineers to define and implement new features.
• Conduct thorough code reviews and contribute to the continuous improvement of our development processes.
• Research and stay abreast of the latest advancements in blockchain technology, DeFi protocols, and security best practices.
• Troubleshoot and resolve complex technical issues in production environments.
• Participate in community discussions and contribute to the open-source ecosystem where applicable.
• Mentor junior developers and share knowledge across the team.

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional software development experience, with at least 3 years focused on blockchain and smart contract development.
• Deep understanding of blockchain principles, consensus mechanisms, and cryptography.
• Proficiency in Solidity and experience with blockchain development frameworks (e.g., Truffle, Hardhat).
• Experience with Layer 2 scaling solutions and cross-chain interoperability.
• Familiarity with DeFi concepts, including AMMs, lending protocols, yield farming, and NFTs.
• Strong understanding of security vulnerabilities in smart contracts and mitigation techniques.
• Excellent problem-solving skills and the ability to work independently in a remote setting.
• Proficiency in version control systems like Git.
• Excellent communication and collaboration skills.

This is a fully remote position, offering the flexibility to work from anywhere. Join a dynamic and innovative team driving the next wave of decentralized finance. Apply today to become a key player in the blockchain revolution.

M365 Big Data Optimization team is hiring a **Software Engineer** to work on big data efficiency improvements for M365 worldwide.
Hundreds of millions of global customers use M365 products every day. The engineering, telemetry and signals, datasets behind this are at world's largest scale: 800+ PB storage and a million CPU cores. There are various kinds of data platforms and systems working with each other to deliver efficient services. We provide large scale and unified datasets, span our portfolio for M365 world-class products and applications, collaborate with data scientists/product teams/sales/marketing teams to gain more product insights, maximize customer value, and reduce cost.  
Our team manages this huge and critical big data capacity and platform, we continuously optimize this giant storage & processing resources for M365 worldwide. We have achieved 200 million dollars cost reduction in the past few years and have accumulated a wealth of technical experience in distributed storage and processing fields. By joining us, you will also become experts on big data efficiency, and share your best practices with thousands of M365 engineers all over the world. There are lots of opportunities and challenges that you can show your passion and talents in big data, improve the efficiency and reliability of the systems, pursue engineering excellence, and make tremendous influence!
Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
**Responsibilities**
+ Design and build highly efficient, lower cost dataset for storage and pipeline for processing.
+ Research, analyze, and investigate optimization opportunities on Office365 Big Data platform.
+ Ensure Office365 capacity stay in allocated quota by optimization in both storage and processing.
+ Design tools, analyze and leverage data mining, generate BI reports to improve the efficiency of data capacity & resource management.
+ Leverage AI technologies/tools to enhance work efficiency-applying machine learning and intelligent automation to streamline processing and uncover optimization opportunities.
**Qualifications**
**Required Qualifications:**
+ Bachelor's Degree in Computer Science, or related technical discipline with proven experience coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR equivalent experience.
+ Solid Computer Science fundamentals.
+ Solid coding skills (no language restrictions).
+ Experience on design/development with C#/SQL Server/ASPX/JavaScript/Azure.
+ Quick learning and solid problem solving, design, coding, and debugging skills.
+ Communication in English: reading, writing, listening, and speaking.
+ Cross-team collaboration skills.
+ Accountable and proactive.
+ Data pipeline and optimization knowledge is a plus.
+ Experience with distributed system is a plus.
+ Experience or strong interest in leveraging AI to improve engineering efficiency, such as automating workflows, enhancing tooling, or identifying optimization opportunities.
**Other Requirements:**
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
+ **Microsoft Cloud Background Check:** This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
**Preferred Qualifications:**
+ Bachelor's Degree in Computer Science
+ OR related technical field AND 1+ year(s) technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR Master's Degree in Computer Science or related technical field with proven experience coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR equivalent experience.
#M365Core
Microsoft is an equal opportunity employer. Consistent with applicable law, all qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations ( .

Office Data Loader team is hiring a **Software Engineer** to build one of the most largest hyper-scale data ingestion service in the world for Office365 services.
With hundreds of millions of users using Office365 services, huge amount of data are generated every day. Data is mission critical for Office365 services. It helps engineering teams to understand the quality of live services, generate insights of feature usage and user behavior, troubleshoot bugs and issues. It also offers better visibility to product and management teams on business impacts, empowers product and scientist teams to build intelligence features.
To support the continuously growth of business needs from Office365, Office Data Loader team builds the hyper-scale distributed data ingestion service. We directly manages the ingestion service on more than 300,000 Exchange Online machines, which upload more than 30,000 TB data to our hyper-scale distributed storage every day. We also support the ingestion service running on even more machines for other Office365 products.
As the fundamental data ingestion service, we play an incredibly important role to make sure data uploading meet the privacy and compliance requirements. Sensitive data needs to be transformed to prevent privacy leaks or ne. Moreover, privacy leak detection and resolution are also built by us as the safeguard. User data that empowers Machine Learning scenarios has even higher requirements on the design of our service. Privacy and compliance are always our top priority, because Microsoft runs on Trust!
Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
**Responsibilities**
The quality of the service means a lot for the success of Office365 services. You will have plenty of opportunities to take on challenges to achieve high uploading completeness (>99.9%) and make sure privacy and compliance requirements are always met.
+ Design and build high quality, performant and reliable distributed ingestion service.
+ Design and build modernized telemetry/monitoring/reporting systems to get the insights of service quality.
+ Improve service performance and efficiency to reduce COST of service.
+ Work with downstream data consumer teams in different geo locations to onboard data ingestion service, and provide supports in daily work.
+ Work with privacy & compliance teams to design and build solutions to prevent/detect/resolve privacy issues, also provide guidance and best practice for engineering teams within Office365.
+ Responsible for the daily operations and maintenance of the live service and ensure quality of service.
+ Collaborate with other Office365 teams to manage their data ingestion service, provide solutions and guidance.
**Qualifications**
**Required Qualifications:**
+ Bachelor's Degree in Computer Science, or related technical discipline with proven experience coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR equivalent experience.
+ Solid coding skills (No requirements on certain language, assuming the candidate can demonstrate fast learning).
+ Solid Computer Science fundamentals.
+ Solid problem analysis and solving skills.
+ Solid communication skills. (Good written English, Avg+ oral English).
+ Passionate to solve hard problems.
+ Passionate to learn new skills/knowledge.
+ Knowledge and experience of distributed system, large-scale big data platform technologies is a plus.
+ Knowledge and experience of performance tuning is a plus.
+ Knowledge and experience of data privacy is a plus.
**Other Requirements:**
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
+ Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
**Preferred Qualifications:**
+ Bachelor's Degree in Computer Science
+ OR related technical field AND 1+ year(s) technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR Master's Degree in Computer Science or related technical field with proven experience coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
+ OR equivalent experience.
#M365Core
Microsoft is an equal opportunity employer. Consistent with applicable law, all qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations ( .

**What you will do**:

- Handle backend Database for Zalo product;
- Working cross-team in implemented projects or collecting requirements for further development;
- Involve in technologies evaluation and selection if needed to implement new solutions;
- Participate in the design, development and implementation of new features and various supporting tools as required;
- Learn more about tech stacks, programming languages, internal DBs & frameworks;
- Research new technologies and learn to develop high-load, low-latency services and deliver high availability and performance.

**What you will need**:

- Experienced in C/C++ is required;
- Familiar with Java programming language is a plus;
- Solid knowledge of Data Structures and Algorithms;
- Good at logical thinking and problem-solving skills;
- Be willing to learn new technologies and programming languages;

**_Nice to have:_**
- Familiar with network protocols (TCP, UDP, HTTP) and socket programming is a plus;
- Good knowledge in Linux is a plus;
- Familiar with in-memory and NoSQL databases is a plus;
- Experienced in asynchronous programming is a plus.

**What you will do**:

- Handle backend Database for Zalo product;
- Working cross-team in implemented projects or collecting requirements for further development;
- Involve in technologies evaluation and selection if needed to implement new solutions;
- Participate in the design, development and implementation of new features and various supporting tools as required;
- Learn more about tech stacks, programming languages, internal DBs & frameworks;
- Research new technologies and learn to develop high-load, low-latency services and deliver high availability and performance.

**What you will need**:

- Experienced in C/C++ is required;
- Familiar with Java programming language is a plus;
- Solid knowledge of Data Structures and Algorithms;
- Good at logical thinking and problem-solving skills;
- Be willing to learn new technologies and programming languages;

**_Nice to have:_**
- Familiar with network protocols (TCP, UDP, HTTP) and socket programming is a plus;
- Good knowledge in Linux is a plus;
- Familiar with in-memory and NoSQL databases is a plus;
- Experienced in asynchronous programming is a plus.

**What you will do**:

- Handle backend Database for Zalo product;
- Working cross-team in implemented projects or collecting requirements for further development;
- Involve in technologies evaluation and selection if needed to implement new solutions;
- Participate in the design, development and implementation of new features and various supporting tools as required;
- Learn more about tech stacks, programming languages, internal DBs & frameworks;
- Research new technologies and learn to develop high-load, low-latency services and deliver high availability and performance.

**What you will need**:

- Experienced in C/C++ is required;
- Familiar with Java programming language is a plus;
- Solid knowledge of Data Structures and Algorithms;
- Good at logical thinking and problem-solving skills;
- Be willing to learn new technologies and programming languages;

**_Nice to have:_**
- Familiar with network protocols (TCP, UDP, HTTP) and socket programming is a plus;
- Good knowledge in Linux is a plus;
- Familiar with in-memory and NoSQL databases is a plus;
- Experienced in asynchronous programming is a plus.