Your Impact

Imagine the year 2030. Advanced technology has automated routine tasks to put Police Officers back in the community, dramatically improving the quality and safety of our lives. Artificial Intelligence connects the dots and surfaces insights to help prevent crime and keep officers and citizens informed and protected.

Today, public safety officers spend up to 40% of their time on the job filling out paperwork. Not only is this tedious for officers, but the never-ending pile of paperwork reduces the amount of time they can spend out in the field, protecting their communities. That's why we're building Axon Records — a cloud-native web platform that cuts down on paperwork so that officers can spend more time prioritizing the safety of their communities.

As a Sr. Fullstack Engineer on the IRS Vietnam team, you will own features across the entire stack — from React-based UI to GraphQL APIs and Go microservices — and contribute directly to expanding Axon Records to international law enforcement agencies in the US, Australia, and the UK. You will help shape how the platform handles complex, country-specific reporting requirements at scale.

This is a high-impact role with opportunities for technical leadership and cross-team influence.

Work Location: This role is based out of our Ho Chi Minh Office and follows a hybrid schedule. We rely on in-person collaboration and ask that team members work onsite Tuesdays through Fridays, with the flexibility to work remotely on Mondays, unless there is an approved workplace accommodation. We believe that connection fuels innovation, and our in-office culture is designed to foster meaningful teamwork, mentorship, and shared success.
Report to: Software engineering manager
Responsibilities:

The Ideal Candidate

• You are a strong fullstack engineer comfortable owning features from the UI layer through to backend services and infrastructure
• You have a product mindset — you care about the end-user experience, not just the code
• You are self-directed and able to lead feature delivery across teams with minimal guidance
• You are a great communicator. You write design documents, participate in architecture discussions, and document best practices to raise the bar for the team
• You thrive in a distributed, remote-first environment and collaborate effectively across time zones

Sound exciting? We think so too. Apply now to join a team that's turning this vision into a reality.

What You'll Work On

• International NIBRS (US/CA/AU/UK) — Build and generalize OOTB spec generation pipelines to support crime reporting standards for US, CA, AU and UK agencies
• Form Builder — Extend the form validation engine to support country/state-specific rules, enabling international agency onboarding
• Localization & i18n — Localize Activity Logs, Notifications, and Workflows for international deployments
• Schema Store (Schemastorus) — Contribute to the schema registry that powers form validation and spec management across the platform
• API Gateway (Hermes) — Build and maintain the GraphQL API layer connecting React frontends to Go microservices via gRPC

Basic Qualifications

• 5+ years of experience building and shipping production web applications across the full stack
• Strong proficiency in React and TypeScript on the frontend
• Strong proficiency in at least one backend language: Node.js or Go
• Experience with GraphQL (Apollo Client and/or Apollo Server)
• Experience with gRPC and microservices architecture
• Experience scaling systems with Kubernetes and Docker
• Experience mentoring junior engineers and facilitating cross-team collaboration
• Experience with observability tools such as DataDog, Splunk, or Sentry

Preferred Qualifications

• Experience with internationalization (i18n) or building multi-locale, multi-tenant SaaS platforms
• Experience with Protocol Buffers and service-to-service communication patterns
• Experience designing for high availability, reliability, security, and performance
• Familiarity with TypeORM, MySQL, or similar ORM/database tooling
• Experience with CI/CD pipelines and infrastructure-as-code (Terraform, Helm)
• Influences peers, advises senior leaders, coaches and mentors junior team members

We are looking for Junior (Mid) Backend Engineers (Java/Spring). 

Your daily task:

• Develop Java Backend part of NAVER Cloud services.
• Participating in code reviews and architecture design.
• Proactive, can-do attitude and strong commitment.

Your background:

• 2+ years of work experience on Backend systems (junior/mid level) with Java applications to serve large-scale and high traffic projects.
• Have +1 years of experience in Java Spring-Framework.
• Bachelor's degree in Computer Science or related technical field.
• Experience or strong knowledge of MSA and k8s.
• Experience in DevOps and CI/CD.
• Experience or strong knowledge one of databases: PostgreSQL, MySQL, Oracle, MongoDB,...
• Understanding & experience in Data structure, Algorithm, Distributed Service, OOP.
• Open-minded, honest and have a positive attitude towards people.
• Good at communication skills in general and basic English skills in particular.
• Cloud Basics: Understanding of IaaS vs PaaS vs SaaS, compute/storage/network fundamentals.
• Networking Essentials: understand about network, DNS, load balancing, firewalls, VPC.
• Have knowledge on at least one cloud platform: AWS/GCP/Azure,…

It's a big plus if you:

• Have experience in Message Queue like Kafka.
• Have experience with ELK stack.
• Have experience with distributed systems (e.g. HBase, Vitese, etc.).
• Have experience in Server Architecture Design for handling massive traffic.
• Hands-on experience with at least one major cloud (AWS, GCP, Azure).
• Have a certificate on one of above cloud platforms.

We are looking for a Fullstack Engineer (Java/ReactJS). 

Your daily task:

• We are building a social platform that connects millions of fans with artists. We don’t just build websites or mobile applications — we engineer high-throughput, low-latency distributed systems. We are looking for a Full-Stack Engineer who can work on the Frontend using ReactJS and also develop Backend services in Java.

Your background:

• 3+ years of experience developing Event-Driven Microservice that can handle high traffic.
• 1+ years of experience working in React or Vuejs, Nextjs projects.
• Deep knowledge of Relational Databases (PostgreSQL, MySQL, Oracle).
• Experience with Event-Driven Architecture using Kafka.
• Understanding & experience in design patterns, data structure, algorithm, data consistency, idempotency.
• Basic communication in English.

It's a big plus if you:

• Have experience in Java Spring-Framework.
• Have experience in distributed database HBase, Cassandra, ClickHouse.
• Hands-on experience with Docker, Helm Charts, Kubernetes, or Cloud Platforms.

We are looking for a Backend Engineer for GSaaS projects to serve NAVER Works, LINE Works users such as:

• Services related to Naver Drive like Naver Switch: is a tool that connects WORKS Drive with other cloud storage services such as Google Drive, Box, Dropbox, and Microsoft OneDrive, enabling seamless data transfer to WORKS Drive.
• Internal tools like Biz Tool: is a tool/system that supports integrated authority management for service operations tools.
• Chatbots such as Eco App: is a bot/app that can integrate 3 party services (Jira, Dropbox,...) with NAVER WORKS/LINE WORKS, delivers important information and real-time updates to users, and supports efficient task processing.
• ClovaNote Admin: is that provides an admin page for management of Clova Note B2B, developing Clova Note in-app for 3rd parties (Zoom, Teams).

Your daily tasks:

• Responsible for developing and maintaining the server-side components using the Java programming language.
• Write and maintain technical documentation, including system architecture and API specifications.
• Take a look at NAVER WORKS services HERE.

Your background:

• 4+ years of work experience on related work；
• Bachelor's degree or above in Computer Science or related field;
• Good Java basic skills, experience with multi-threaded programming, IO, JVM garbage collection;
• Experience with Java performance tuning and find and resolve troubleshoot experience with Spring, Spring MVC, Spring Boot, MyBatis, MySQL, High Availability, High Concurrency Related Technologies; 
• Experience with Linux basic command, independently complete project deployment, troubleshooting; 
• Open-minded, honest and have a positive attitude towards people;
• Good at communication skills in general and English skills in particular.

It's a big plus if you:

• Experience with big data projects, Kafka & Hbase.

We are looking for Senior Backend Engineers (Java/Kotlin/Spring). 

Your daily task:

• Develop Java (Kotlin) Backend part of various NAVER Services like Academic Info, Blog, Commerce, Dictionary, Naver Care, NAVER Cloud, Security, Weverse etc.
• Participating in code reviews and architecture design
• Proactive, can-do attitude and strong commitment

Your background:

• 6+ years of work experience on Backend systems with Java(Kotlin) applications to serve large-scale and high traffic projects
• Have +5 years of experience in Java(Kotlin, Spring Framework)
• Experience or strong knowledge of MSA and k8s
• Experience or strong knowledge one of databases: PostgreSQL, MySQL, MongoDB,...
• Experience in Message Queue like Kafka
• Understanding & experience in Data structure, Algorithm, Distributed Service, OOP
• Open-minded, honest and have a positive attitude towards people
• Good at communication skills in general and English skills in particular
• Need ability of managing job-schedule and leading members

It's a big plus if you:

• Have experience in DevOps and CI/CD
• Experience in a leadership role will be a big plus
• Have experience with distributed systems (e.g. HBase, Vitese, etc.)
• Have experience in Server Architecture Design for handling massive traffic
• Proficiency in the Korean language is preferred

Backend Engineer: Platform API - Vietnam

Company Introduction

Our mission is to enable every organization to be climate conscious and positive with the world’s best climate software and data products. Persefoni is creating an all-in-one platform that allows organizations to measure, analyze, and reduce their Enterprise Carbon Footprint. Our goal is to provide our customers unprecedented visibility and insights into the impact their organization has on the environment. Leveraging the latest breakthroughs in data science and software, our technology will empower teams and leaders to mobilize their organizations to continuously improve their greenhouse gas emissions metrics.

About The Role (What you will get to do)

The Backend Engineer will be a key member to assist in building out our web services and backend persistence layer. Successful candidates should have a minimum of three years of recent professional programming in positions requiring the skills listed below with an emphasis on Golang, SQL and data modeling development. Our project entails implementing our pre-approved development targets and developing a robust and reusable code framework to deliver a variety of new features across our product lines according to our preferred architecture design and best practices. Our backend stack is a combination of Golang, Redis, MySQL, and Snowflake while following the Clean Architecture Design pattern. APIs are documented and managed using the Open API framework and maintained in ReadMe. All development work is managed via JIRA tracked sprints, Github trunk-based management, and infrastructure is managed in AWS with monitoring in Datadog.

Responsibilities (What we expect)

• Collaborate on the design of data models, technical architecture, data flows, schemas, and API contracts.
• Relay updates on existing work via Jira ticket status, push well documented pull requests for features, and collaborate through review and comments on your fellow developer pull requests.
• Building scalable and robust APIs within Go following the Clean Architecture Design pattern and API best practices around security and scaling.
• Write/Update Open API documentation to document new/existing APIs.
• Write/Update unit and integration tests to ensure adequate test coverage of our code base. 

Qualifications (What you bring to the role)

• At least 3+ years experience professionally programming in Go.
• At least 3+ years of experience specifically building back-end systems.
• At least 3 years of experience writing SQL against normalized data structures.
• Proficiency with code debugging and uncovering performance issues utilizing developer tooling.
• Proficiency writing unit and integration tests.
• Proficiency in English language is highly preferred. 

How You'll Know You’re on the Right Track

• Within your first day, you should have been able to clone the repository and install the necessary tooling to build and run our projects locally.
• Within your first week, you will be familiarizing yourself with the code base and coordinating work on development tickets as requested.
• Within your first month, you should be successfully operating within the development team, submitting PRs, providing feedback on team member PRs, and advancing your assigned projects with your contributions.
• Within your first year, you should be contributing to the data and software engineering teams to provide your personal insights as to how to improve our processes and architectures. 

Job Type:

Full-time position located in Vietnam governed by Vietnam labour regulations, with the Persefoni entity being established in Vietnam.   

Interview Process

• Step 1: Initial screen with talent acquisition
• Step 2: Technical Interview
• Step 3: Interview with Vietnam Country Director
• Step 2: Interview with Engineering Leadership team
• Step 4: Offer extended
• Step 5: Background check and onboarding

Persefoni is an Equal Opportunity employer

We are committed to valuing and respecting people and organizations of all backgrounds. We proudly bring this to life by fostering a culture of innovation, creativity, diversity of thought, and inclusion.

We strive for each of our team members to be able to show up for work every day as their genuine selves. Similar to the reverence given to Earth’s biodiversity, we recognize the vast potential that exists when all of the facets of diversity within our team are appreciated and illuminated. This policy extends to all aspects of our employment practices.

Company Introduction

Our mission is to enable every organization to be climate conscious and positive with the world’s best climate software and data products. Persefoni is creating an all-in-one platform that allows organizations to measure, analyze, and reduce their Enterprise Carbon Footprint. Our goal is to provide our customers unprecedented visibility and insights into the impact their organization has on the environment. Leveraging the latest breakthroughs in data science and software, our technology will empower teams and leaders to mobilize their organizations to continuously improve their greenhouse gas emissions metrics.

About The Role (What you will get to do)

The Data Engineer will be a key member to assist in building out our web services and backend persistence layer. Successful candidates should have a minimum of three years of recent professional programming in positions requiring the skills listed below with an emphasis on data integrity and data pipelines. Our project entails implementing our pre-approved development targets and developing a robust and reusable code framework to deliver a variety of new features across our product lines according to our preferred architecture design and best practices. Our backend stack is a combination of Golang, Redis, MySQL, and Snowflake while following the Clean Architecture Design pattern. APIs are documented and managed using the Open API framework and maintained in ReadMe. Our data pipelines for data loading and machine learning pipelines are managed via Databricks while our data transformation occurs with DBT against Snowflake within AWS cloud services. All development work is managed via JIRA tracked sprints, Github Git-flow branch management, and infrastructure is managed in AWS with monitoring in Datadog.

Responsibilities (What we expect)

• Collaborate on the design of data models, technical architecture, data flows, schemas, and API contracts.
• Relay updates on existing work via Jira ticket status, push well documented pull requests for features, and collaborate through review and comments on your fellow developer pull requests.
• Building scalable and robust data flows using Databricks, DBT and Snowflake.
• Add/Update to our backend persistence model in MySQL by writing SQL based migration scripts.
• Write/Update data test using native DBT tests and frameworks like Great Expectations to ensure adequate test coverage of our code base.

Qualifications (What you bring to the role)

• At least 3+ years experience building/managing data pipelines within Databricks.
• At least 3+ years experience transforming data in Snowflake with tools like DBT.
• At least 3+ years of experience specifically building data and ML pipelines
• At least 3 years of experience writing SQL against normalized data structures.
• Proficiency with code debugging and uncovering performance issues utilizing developer tooling.
• Proficiency writing data tests.
• ExperienceProficiency in English language is highly preferred. 

How You'll Know You’re on the Right Track

• Within your first day, you should have been able to clone the repository and install the necessary tooling to build and run our projects in cloud based IDEs such as Databricks and DBT.
• Within your first week, you will be familiarizing yourself with the code base and coordinating work on development tickets as requested.
• Within your first month, you should be successfully operating within the development team, submitting PRs, providing feedback on team member PRs, and advancing your assigned projects with your contributions.
• Within your first year, you should be contributing to the data and software engineering teams to provide your personal insights as to how to improve our processes and architectures. 

Job Type:

Full-time position located in Vietnam governed by Vietnam labour regulations, with the Persefoni entity being established in Vietnam.   

Interview Process

• Step 1: Initial screen with talent acquisition
• Step 2: Technical Interview
• Step 3: Interview with Vietnam Country Director
• Step 2: Interview with Engineering Leadership team
• Step 4: Offer extended
• Step 5: Background check and onboarding

Persefoni is an Equal Opportunity employer

We are committed to valuing and respecting people and organizations of all backgrounds. We proudly bring this to life by fostering a culture of innovation, creativity, diversity of thought, and inclusion.

We strive for each of our team members to be able to show up for work every day as their genuine selves. Similar to the reverence given to Earth’s biodiversity, we recognize the vast potential that exists when all of the facets of diversity within our team are appreciated and illuminated. This policy extends to all aspects of our employment practices.

Our Client is a high-performance data indexing and visualization platform designed to provide users with unmatched query speed and intuitive visualization at an efficient cost. They leverage its superior dataset organization methodologies and exploit data parallelism through GPU acceleration and decentralized computing to achieve both speed and efficiency.

The role

We are looking for a highly skilled Rust Engineer with expertise in backend development, Rust programming, and strong knowledge in blockchain technology to join their remote team in APAC.

As a Software Engineer, you will be responsible for designing and developing robust backend services using Rust, that are scalable, secure, and high-performance. Experience in Parallel Programming and working with High-Frequency Trading platforms is an advantage.

If you are skilled in critical thinking, possess excellent problem-solving abilities, and are eager to contribute to greenfield projects in the blockchain industry, come and join the team!

In this role, you will:

• Design, develop, and maintain backend services using Rust programming language.
• Collaborate with software engineers, designers, and product managers to translate requirements into technical solutions.
• Ensure the scalability, performance, and reliability of backend systems.
• Implement automated testing and establish continuous integration/continuous deployment (CI/CD) pipelines.
• Participate in architectural and technical decision-making to improve system architecture and processes.

You might thrive in this role if you have:

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in Rust programming language with good programming habits, coding style, and familiarity with common development frameworks and libraries.
• Experience in developing high-performance, scalable, and reliable software applications.
• Proficiency in using version control tools like Git and experience with testing frameworks and methodologies.
• Proficiency in using common middleware such as MySQL, Redis, and message queues.
• Proficiency in understanding and implementing basic algorithms.
• Familiarity with mainstream public blockchain technologies and their working principles.
• Strong interest and passion for the blockchain industry.
• Strong critical thinking, problem-solving abilities, and a quick learner.
• Clear logic, strong security awareness, and excellent teamwork skills.
• Fluency in English is a must.

#LI-REMOTE