ULTIMS – Building the ultimate e-commerce solution for high performers
Lead Dev / Full-Stack Developer
Backend Developer
Database Engineer / ERP Specialist
Frontend Developer
DevOps Engineer
We’re building what we always wanted—The ultimate solution for high-performing sellers.
At ULTIMS, we’re not trying to be louder than Shopify, WooCommerce, or Magento. Instead, we’re focusing on building the solution we always wished existed—the one that truly understands the needs of high-performance sellers like us. We’ve faced the frustrations, limitations, and inefficiencies of existing platforms, and we know the pain points that come with scaling an ecommerce business.
We’re developing a proprietary platform that solves the real issues e-commerce professionals face every day: the struggle to customize systems to your exact needs, the constant fight to make tools work seamlessly together, and the challenge of maintaining performance under heavy traffic. At ULTIMS, we’re building something better, something that lets you enjoy selling online and focus on growth, rather than being stuck fixing what should have worked in the first place.
Why Join Us Now?
We’re scaling fast, innovating at every turn, and building the platform high-performing sellers have always wanted—the one that solves real problems and frees you to focus on growth. Join us early, contribute your talents, and watch your career flourish alongside our success. This is more than just a job—it’s a one time opportunity to shape the future of global commerce.
ULTIMS is empowered by TOSSIT.
Lead Dev / Full-Stack Developer
📍 Location: HCMC / Da Nang (final team location will be chosen by the team, at least 2-3 days of presence at the office)
Work structure:
📅 Workweek: 45 hours
🏖️ Paid Days Off: 30 days per year (including national holidays)
🌏 Remote Work: 100% remote work allowed occasionally from another location.
⌚ Flexible working hours
💸 Salary: $2,000-2,500 monthly
💰 End of Year Bonus: Up to 2-month salary (based on company annual performance)
🛡️ Health Insurance: Premium insurance for you and your loved ones (BHYT)
✈️ Team-building events and one company trip per year
About the role:
We are seeking an experienced Lead Dev / Full-Stack Developer to lead the development of a cutting-edge e-commerce and ERP platform. This role requires a high level of technical expertise, leadership skills, and a deep understanding of modern software architecture. You will guide a team of developers to deliver high-quality, scalable solutions that meet performance and security standards.
Key responsibilities:
1. Technical leadership:
- Define the overall architecture of the platform and establish technical guidelines and best practices.
- Lead and mentor a team of backend, frontend, and database engineers.
- Coordinate with DevOps engineers to ensure seamless deployment and scalability.
- Ensure adherence to coding standards, performance benchmarks, and security requirements.
- Review code, provide feedback, and enforce high-quality coding standards.
- Implement automated testing, continuous integration, and deployment strategies.
- Facilitate daily stand-ups, sprint planning, and retrospectives as needed.
2. System design & implementation:
- Design and implement a highly scalable, secure, and performant e-commerce and ERP system.
- Collaborate with backend, frontend, and database engineers to integrate various modules.
- Develop a robust API framework for internal and external use.
- Ensure cross-platform compatibility and responsiveness.
3. Performance optimization:
- Conduct thorough performance analysis and optimization to ensure scalability.
- Implement caching mechanisms, database indexing, and load balancing strategies.
- Ensure low latency, high throughput, and maximum availability.
4. Security & compliance:
- Implement security measures across all aspects of the platform.
- Monitor and address vulnerabilities promptly.
- Ensure compliance with data protection and privacy regulations.
Requirements:
- Technical expertise:
- Proven experience in leading development teams and managing complex projects.
- Strong proficiency in Rust, React, Svelte, Tailwind CSS, MongoDB, Kafka.
- Extensive experience with Docker, Kubernetes, CircleCI, Git, Jira.
- Expertise in building and scaling APIs.
- Familiarity with CI/CD processes and automated testing.
2. Project management skills:
- Experience in Agile development methodologies.
- Ability to break down complex tasks and delegate effectively.
- Strong organizational and communication skills.
3. Soft skills:
- High attention to detail, proactive mindset, and adaptability.
- Strong problem-solving abilities and creativity.
- Excellent fluency in English.
Who we are looking for:
- A technically skilled leader who can drive a team toward achieving ambitious goals.
- Someone who thrives in a collaborative, fast-paced environment and can adapt to evolving requirements.
- A continuous learner who stays updated with the latest industry trends.
Backend Developer
📍 Location: HCMC / Da Nang (final team location will be chosen by the team, at least 2-3 days of presence at the office)
Work structure:
📅 Workweek: 45 hours
🏖️ Paid Days Off: 30 days per year (including national holidays)
🌏 Remote Work: 100% remote work allowed occasionally from another location.
⌚ Flexible working hours
💸 Salary: $1,400-1,800 monthly
💰 End of year bonus: Up to 2-month salary (based on company annual performance)
🛡️ Health insurance: Premium insurance for you and your loved ones (BHYT)
✈️ Team-building events and one company trip per year
About the role:
As a Backend Developer, you will build and maintain the core systems of our e-commerce and ERP platform. This role requires strong technical skills and a deep understanding of modern backend development technologies.
Key responsibilities:
- Backend Architecture & Design:
- Develop scalable backend systems using Rust, MongoDB, and Kafka.
- Design and implement RESTful APIs for seamless communication.
- Ensure high availability and robustness of backend services.
- Implement data streaming solutions using Kafka for real-time processing.
2. Development & Optimization:
- Collaborate with frontend developers and DevOps engineers to ensure smooth integration.
- Optimize database architecture and queries for high performance.
- Implement caching strategies, database indexing, and load balancing.
- Build asynchronous processes for data handling.
3. Security & Compliance:
- Implement authentication, authorization, and encryption protocols.
- Monitor and address vulnerabilities promptly.
- Ensure adherence to privacy regulations.
4. Testing & Deployment:
- Implement unit tests, integration tests, and API testing.
- Ensure seamless deployment using Docker, Kubernetes, CircleCI.
- Monitor logs and troubleshoot issues effectively.
Requirements:
- Technical Skills:
- Proficiency in Rust, MongoDB, Kafka.
- Experience with CI/CD tools (Docker, Kubernetes, Git, CircleCI).
- Strong knowledge of RESTful APIs, real-time data processing, and cloud architecture.
2. Problem-Solving Skills:
- Proven ability to diagnose and resolve complex technical issues.
- Experience in optimizing performance and scalability.
3. Soft Skills:
- Attention to detail, creativity, and adaptability.
- Strong communication skills.
4. Language Proficiency:
- Excellent English communication skills.
Who we are looking for:
- A backend expert who can deliver reliable, efficient, and scalable solutions.
- A creative problem-solver who thrives in challenging environments.
- A collaborative individual who can work well within a team.
Database Engineer / ERP Specialist
📍 Location: HCMC / Da Nang (final team location will be chosen by the team, at least 2-3 days of presence at the office)
Work structure:
📅 Workweek: 45 hours
🏖️ Paid days off: 30 days per year (including national holidays)
🌏 Remote work: 100% remote work allowed occasionally from another location.
⌚ Flexible working hours
💸 Salary: $1,400-1,800 monthly
💰 End of year bonus: Up to 2-month salary (based on company annual performance)
🛡️ Health insurance: Premium insurance for you and your loved ones (BHYT)
✈️ Team-building events and one company trip per year
About the role:
We are seeking a Database Engineer / ERP Specialist responsible for designing and maintaining a highly scalable, secure, and high-performance database structure. You will ensure efficient communication between the ERP system, e-commerce platform, and warehouse software, creating a robust and integrated solution.
Key responsibilities:
- Database Design & Architecture:
- Design, implement, and maintain database schemas that support scalable and efficient data storage.
- Collaborate with backend developers to ensure optimal database interaction.
- Define and implement database security standards and backup procedures.
2. Data Management & Optimization:
- Monitor, optimize, and maintain database performance including indexing, query optimization, and storage management.
- Implement caching mechanisms and data partitioning for efficient data retrieval.
- Ensure high availability, disaster recovery, and data consistency.
3. ERP Integration & Maintenance:
- Develop and manage integration with ERP systems to support inventory management, order processing, and logistics.
- Create efficient ETL processes for importing, transforming, and exporting data across systems.
- Implement API-based communication between the database and other platform modules.
4. Security & Compliance:
- Ensure data security and compliance with relevant standards and regulations.
- Implement data encryption, authentication protocols, and user access controls.
- Regularly audit and monitor systems for vulnerabilities and performance issues.
5. Testing & Documentation:
- Write unit tests, integration tests, and performance tests for database systems.
- Maintain comprehensive documentation of database schemas, processes, and integrations.
- Provide technical support and troubleshoot database-related issues.
Requirements:
- Technical Skills:
- Strong proficiency in SQL and NoSQL databases (e.g., MongoDB, PostgreSQL).
- Experience with Rust, Kafka, and cloud infrastructure (Docker, Kubernetes, CircleCI).
- Expertise in designing scalable data architectures and ETL processes.
- Familiarity with data security standards and best practices.
- Experience in integrating ERP systems and building data pipelines.
2. Problem-Solving Skills:
- Proven ability to diagnose and resolve complex database issues.
- Experience optimizing performance and ensuring high availability.
3. Soft Skills:
- Attention to detail, creativity, and adaptability.
- Strong communication skills.
4. Language Proficiency:
- Excellent English communication skills.
Who we are looking for:
- A database expert with deep technical knowledge of data architecture and ERP integration.
- A meticulous problem-solver capable of optimizing database performance and ensuring data integrity.
- A collaborative individual who can work effectively with developers and system architects.
Frontend Developer
📍 Location: HCMC / Da Nang (final team location will be chosen by the team, at least 2-3 days of presence at the office)
Work structure:
📅 Workweek: 45 hours
🏖️ Paid days off: 30 days per year (including national holidays)
🌏 Remote work: 100% remote work allowed occasionally from another location.
⌚ Flexible working hours
💸 Salary: $1,400-1,800 monthly
💰 End of year bonus: Up to 2-month salary (based on company annual performance)
🛡️ Health insurance: Premium insurance for you and your loved ones (BHYT)
✈️ Team-building events and one company trip per year
About the role:
As a Frontend Developer, you will be responsible for designing and implementing user-friendly and high-performance web interfaces for our e-commerce and ERP platform. Your work will directly impact the user experience, responsiveness, and overall aesthetics of the platform.
Key responsibilities:
- Frontend Architecture & Design:
- Develop modern, responsive web interfaces using Svelte, React, and Tailwind CSS.
- Collaborate with backend developers to ensure seamless integration of APIs.
- Create reusable UI components and maintain consistency across the platform.
- Optimize front-end performance for speed, scalability, and accessibility.
2. User Experience & Usability:
- Work closely with UX/UI designers to implement intuitive and aesthetically pleasing user interfaces.
- Ensure mobile-first design principles and cross-platform compatibility.
- Enhance user interaction through animations and dynamic elements.
- Conduct usability testing and iterate on feedback to improve the overall experience.
3. Performance Optimization:
- Monitor, identify, and resolve performance bottlenecks.
- Implement best practices for improving load times, responsiveness, and rendering efficiency.
- Utilize caching techniques and image optimization to enhance user experience.
4. Security & Compliance:
- Ensure the security of frontend systems through secure coding practices.
- Regularly update dependencies and mitigate vulnerabilities.
5. Testing & Documentation:
- Write unit tests and integration tests to ensure robust, error-free implementations.
- Maintain documentation for frontend architecture and design principles.
- Troubleshoot issues and provide timely support during deployments.
Requirements:
- Technical Skills:
- Proficiency in Svelte, React, Tailwind CSS, HTML5, CSS3, and JavaScript (ES6+).
- Familiarity with RESTful APIs and integrating frontend with backend systems.
- Strong understanding of cross-browser compatibility and web accessibility standards.
- Experience with CI/CD tools such as Docker, Kubernetes, Git, CircleCI.
2. Design & Usability Skills:
- Ability to convert design mockups into functional interfaces.
- Familiarity with UX principles and best practices.
- Creative problem-solving abilities with attention to detail.
3. Soft Skills:
- Excellent communication and collaboration skills.
- Adaptability and willingness to learn new technologies.
4. Language Proficiency:
- Excellent English communication skills.
Who we are looking for:
- A creative and detail-oriented developer who strives for excellence in user experience.
- A proactive learner willing to adopt the latest frontend technologies.
- A collaborative individual who enjoys working in a fast-paced environment.
DevOps Engineer
📍 Location: HCMC / Da Nang (final team location will be chosen by the team, at least 2-3 days of presence at the office)
Work structure:
📅 Workweek: 45 hours
🏖️ Paid days off: 30 days per year (including national holidays)
🌏 Remote work: 100% remote work allowed occasionally from another location.
⌚ Flexible working hours
💸 Salary: $1,400-1,800 monthly
💰 End of year bonus: Up to 2-month salary (based on company annual performance)
🛡️ Health insurance: Premium insurance for you and your loved ones (BHYT)
✈️ Team-building events and one company trip per year
About the role:
As a DevOps Engineer, you will be responsible for building and maintaining robust infrastructure and deployment pipelines to support the development of our e-commerce and ERP platform. This role requires expertise in automation, scalability, and operational efficiency.
Key responsibilities:
- Infrastructure Design & Maintenance:
- Design, implement, and maintain scalable infrastructure using Docker, Kubernetes, and cloud services.
- Implement Infrastructure as Code (IaC) using tools like Terraform or Ansible.
- Optimize infrastructure for performance, reliability, and cost-effectiveness.
2. CI/CD Pipelines & Automation:
- Build and maintain CI/CD pipelines using CircleCI, Git, and other relevant tools.
- Automate build, testing, and deployment processes to improve efficiency and reliability.
- Ensure rapid, safe, and consistent delivery of applications.
3. Monitoring & Logging:
- Implement monitoring, logging, and alerting solutions to ensure high availability and performance.
- Utilize tools like Prometheus, Grafana, ELK stack for monitoring and troubleshooting.
- Proactively address issues before they impact end-users.
4. Security & Compliance:
- Implement security best practices for cloud infrastructure and applications.
- Conduct regular security audits and ensure compliance with relevant standards.
- Continuously update and patch systems to maintain security and reliability.
5. Documentation & Support:
- Maintain comprehensive documentation of infrastructure configurations and procedures.
- Provide technical support and troubleshooting expertise as needed.
- Collaborate with developers to streamline development and deployment processes.
Requirements:
- Technical Skills:
- Strong proficiency in Docker, Kubernetes, CircleCI, Git, Terraform, Ansible.
- Experience with monitoring tools such as Prometheus, Grafana, ELK stack.
- Proficiency in scripting languages like Bash, Python, or Go.
- Experience with cloud platforms (AWS, Azure, GCP) is a plus.
2. Problem-Solving Skills:
- Proven ability to diagnose and resolve complex infrastructure and deployment issues.
- Strong focus on automation and operational efficiency.
3. Soft Skills:
- Excellent communication and collaboration skills.
- Attention to detail and proactive problem-solving mindset.
4. Language Proficiency:
- Excellent English communication skills.
Who we are looking for:
- A skilled DevOps engineer passionate about automation and operational excellence.
- A proactive learner who stays updated with the latest DevOps practices and tools.
- A collaborative individual who enjoys optimizing infrastructure and processes.
