The Position

OPSWAT is now searching for a Software Engineering Intern to join our MDaaS product. MDaaS is a real-time malware scanning platform handling 30M+ requests/day, built on a Node.js/TypeScript microservices architecture with event streaming (Kafka, RabbitMQ) and React frontend.

As an Intern, you'll work directly with senior engineers — shipping real features, fixing real bugs, and learning how a production-grade cybersecurity platform is built and operated.

What You Will Be Doing

• Implement small features and bug fixes across backend services (Node.js/TypeScript) under guidance from senior engineers

• Write unit and integration tests to improve coverage on existing modules

• Participate in code reviews — both receiving feedback and reviewing peers

• Debug issues in local and staging environments using logs and tracing tools

• Read and understand event-driven flows (Kafka consumers, RabbitMQ handlers) to contribute to ingestion and processing pipelines

• Update and maintain internal documentation, API specs, and runbooks

• Join sprint planning, daily standups, and retrospectives as an active team member

• Experiment with frontend components in the internal tooling dashboard (React + TypeScript)

What You'll Learn

By the end of your time on MDaaS, you'll have hands-on exposure to:

• Production TypeScript microservices — structure, patterns, and testing

• Event-driven architecture with Kafka and RabbitMQ

• Docker and basic Kubernetes concepts (deployment, logs, exec)

• Code review culture and engineering standards in a global product company

• How a cybersecurity SaaS platform processes millions of file scan requests

What We Need From You

Education & Background

• Pursuing or completed a degree in Computer Science, Software Engineering, or equivalent

• Able to commit at least 4 months (internship) or full-time (associate)

Soft Skills

• Curious and proactive — asks questions, doesn't wait to be unblocked

• Communicates clearly in English (written); able to describe problems and solutions concisely

• Receptive to feedback and willing to iterate quickly

• Comfortable working in a team across different timezones

Technical Fundamentals

• Solid understanding of programming fundamentals: data structures, algorithms, OOP

• Hands-on experience with JavaScript or TypeScript — coursework or personal projects count

• Familiar with Git: branching, pull requests, resolving conflicts

• Basic understanding of REST APIs: HTTP methods, status codes, request/response structure

• Able to read and understand existing code in an unfamiliar codebase

• Actively uses AI coding tools (GitHub Copilot, Cursor, Claude, ChatGPT) as part of daily workflow — knows how to prompt effectively, verify output, and not blindly trust generated code

Dev Environment

• Comfortable working in a Linux/macOS terminal

• Knows how to run a project locally with Docker Compose

• Can use a debugger or structured logging to trace a bug

If Would Be Nice If You Had

• Prior internship or project experience with a Node.js or TypeScript backend

• Familiar with any testing framework (Jest, Vitest, Mocha)

• Basic React knowledge — able to build or modify a UI component

• Exposure to message queues (Kafka, RabbitMQ, Redis) — even conceptually

• Knows what a microservice is and why services communicate over events

• Experience with any cloud provider (AWS, GCP, Azure) — even free tier

• Interest in cybersecurity — malware analysis, threat intelligence, or security tooling

• Has read about or experimented with CI/CD pipelines

• Experience building features or scripts with AI assistance end-to-end — from prompt design to testing the result

• Understands limitations of LLM-generated code: hallucinations, outdated APIs, security blind spots

• Has experimented with AI APIs (OpenAI, Anthropic, Gemini) in side projects

• Familiar with concepts like RAG, embeddings, or function calling — even at a basic level

About you

We’re looking for people with a strong background or interest in building successful products or systems; you’re comfortable in dealing with lots of moving pieces; you have exquisite attention to detail; and you’re comfortable learning new technologies and systems.

The Opportunity

We have backend engineers in almost every team across Telnyx, and in that role, you’ll be making some of the most significant decisions for the company. You’ll get to work with other engineers to build delightful features that span various parts of the system, as well as our business, sales, and operations teams to understand and solve our users’ pain points.

• Design, build, and maintain APIs, services, and systems across Telnyx’s engineering teams.
• Debug production issues across services and multiple levels of the stack.
• Work with engineers across the company to build new features at large scale.
• Improve engineering standards, tooling, and processes.

What We're Looking For

• Have 6+ years of professional software development experience with a functional programming language (Elixir/Erlang is preferred).
• Have experience working with relational databases at scale.
• Have deep knowledge of microservice architecture patterns and anti-patterns.
• Have experience with message queues like RabbitMQ and Kafka.
• Understand the challenges inherent in concurrent and distributed programming.
• Have experience with more exotic databases/key-value stores such as ETS, Mnesia, Cassandra and Redis.
• Have familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus, or RabbitMQ.

Bonus Points For

• You take a thoughtful approach to decision-making, knowing when to move fast and when to long-term optimize.
• You want to work in a fast-paced, product-driven environment.
• You keep up to date with the latest technologies and patterns and enjoy sharing what you’ve learned.

#LI-VIETNAM
#LI-KG1

Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.

The Role: We're seeking a Senior Site Reliability Engineer to join the team. You will build and operate the infrastructure and tooling behind WorldQuant's data ingestion pipelines — systems that onboard, validate, and deliver large-scale datasets to the firm's research platform. This is a 70% build / 30% operate role. You'll spend most of your time engineering automation, observability, and developer tooling, while also participating in on-call rotations and incident response for production data pipelines. You'll partner with engineering, analyst, and research teams to ensure reliability at scale — this requires excellent analytical skills, clear communication, and the ability to collaborate across teams.

What You'll Do:

Build (70%):

• Design and develop automation, monitoring, CI/CD, and reliability features for the data onboarding pipeline
• Develop and maintain internal infrastructure and services that reduce toil and improve pipeline reliability
• Build observability solutions — dashboards, alerting, log aggregation — using Grafana, the ELK stack, and Vector
• Design and implement CI/CD pipelines, test automation, and release management workflowsWrite infrastructure-as-code for provisioning, scaling, and managing platform components: Kubernetes, bare metal hosts
• Integrate and extend tools such as Redis, Celery, MySQL

Operate (30%): Keep production data pipelines healthy and respond to incidents

• Participate in on-call rotation, respond to production incidents, and drive post-mortems
• Define and track SLOs/SLIs for pipeline reliability, latency, and data freshness
• Diagnose platform performance and reliability issues, driving them to root cause
• Create and maintain runbooks for common operational scenarios
• Plan capacity and optimize resource utilization

What You'll Bring

• 8+ years of experience in SRE, DevOps, or platform engineering roles
• Linux expertise: Power user proficiency in Linux with ability to manage infrastructure, deploy services, and troubleshoot production systems
• Python proficiency: Strong scripting and automation skills; experience building CLI tools, API clients, monitoring integrations, and operational tooling in Python
• Kubernetes & containers: Deep hands-on experience with Kubernetes — deploying, scaling, debugging, and managing production workloads. Familiarity with Helm, resource management. Solid experience with Docker
• Observability: Hands-on experience with monitoring stacks — Grafana, Prometheus, ELK (Elasticsearch, Logstash, Kibana), or similar. Experience designing dashboards, alerts, and SLO-based reliability tracking
• CI/CD & infrastructure-as-code: Experience designing and maintaining CI/CD pipelines (GitLab CI, or similar), including test automation and release management. Familiarity with Ansible or similar IaC tools
• Databases: Working knowledge of relational databases (MySQL/PostgreSQL), query tuning, and operational database management
• Message queues & streaming: Experience with Kafka, Redis pub/sub, or Celery for event-driven architectures
• Networking & APIs: Understanding of network fundamentals, DNS, load balancing, and REST/gRPC APIs
• Incident management: Experience with on-call rotations, incident response, post-mortems, and runbook-driven operations
• Leadership & management: Proven track record of leading a team — mentoring engineers, driving technical roadmaps, coordinating cross-team initiatives, and managing priorities. Comfortable owning team delivery and representing the team to stakeholders
• AI-agent readiness: Openness to working alongside AI coding agents and LLM-powered tools as part of the development and operations workflow — treating AI as a force multiplier for automation, incident analysis, and toil reduction
• Nice to Have:
  • Cloud platforms: Exposure to GCP or AWS for compute, storage, and managed services
  • Data tools: Familiarity with Apache Arrow, gRPC, or columnar data formats
  • Big data platforms: Familiarity with Hadoop or Apache Spark for large-scale data processing
  • Programming languages: C/C++, Golang, Scala, JavaScript
  • Financial services or data-intensive industry background
  • SRE culture: Familiarity with Google's SRE book principles — error budgets, toil tracking, blameless post-mortems

What We Offer:

• Competitive and attractive compensation package with clear career road-map – where you feel challenged everyday
• We offer a strong culture of learning and development: training courses, library, speakers, share and learn events
• Learn from who sits next to you! Working in WQ you are surrounded by smart and talented people
• Premium Health Insurance and Employee Assistance Program
• Generous time-off policy, re-creation sabbatical leave (based on tenure), Trade Union benefits for staff and family
• Team building activities every month: Local engagement events, Employee clubs: football, ping-pong, badminton, yoga, running, PS5, movies, etc.
• Annual company trip and occasional global conferences – opportunity to travel and connect with our global teams
• Happy-hour with tea break, snacks and meals every day in the office!

#LI-QM1

Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.

The Role: We're seeking a senior developer to join our team. You will design, build, and operate large-scale data and ETL systems that power the firm's research and investment workflows. This is a high-autonomy role - you'll own critical systems end-to-end, make architectural decisions, and deliver solutions with minimal guidance. We need someone who is self-directed, able to lead themselves, take ownership of outcomes, and drive complex problems to resolution independently. You should be comfortable communicating across teams, articulating technical trade-offs to stakeholders, and mentoring others through code review and collaboration.

What You'll Do:

• Design, develop, and own backend services and data pipelines that process large volumes of data optimally and at scale
• Architect data storage and processing solutions, including schema design, query optimization, and data modeling
• Build and maintain APIs, messaging systems, and integration layers that connect data producers and consumers
• Drive technical decisions - evaluate trade-offs, choose the right tools, and define system boundaries
• Take ambiguous requirements and break them down into deliverable, well-engineered solutions
• Diagnose and resolve complex production issues - applying strong analytical and systems thinking
• Improve engineering practices: testing, CI/CD, observability, and documentation

What You'll Bring:

• 8+ years of professional software development experience
• Strong programming proficiency: Mastery of at least one major programming language (Python, Java, Go, C++, or equivalent). Beyond syntax fluency, you should understand language internals and be able to apply that depth to write performant, reliable code
• System design: Proven ability to architect distributed, scalable, and fault-tolerant systems. Understanding of common patterns - event-driven architecture, service decomposition, data partitioning, caching strategies
• Data engineering: Experience building ETL/ELT pipelines, working with batch and streaming data, and handling large-scale data processing
• Database proficiency: Deep understanding of relational databases (PostgreSQL, MySQL) and familiarity with analytical/columnar stores; strong SQL skills including query optimization
• Software engineering depth: Strong grasp of data structures, algorithms, design patterns, and software architecture principles - applied in production, not just theory
• API design: Experience designing clean, well-documented REST/gRPC APIs
• Incident response mindset: Ability to diagnose production issues methodically, drive root-cause analysis, and feed into post-mortems and operational improvement
• AI-agent readiness: Openness to working alongside AI coding agents and LLM-powered tools as part of the development workflow - using AI as a force multiplier for code generation, review, debugging, and documentation
• Nice to Have:
  • Python mastery: Advanced knowledge of Python internals, concurrency (asyncio, threading, multiprocessing), performance profiling, packaging, and strong experience with frameworks such as FastAPI/Flask, SQLAlchemy, pytest, and mypy/type annotations
  • Observability and distributed tracing: Experience with monitoring and observability stacks - metrics, structured logging, distributed tracing (OpenTelemetry, Grafana, ELK) - for diagnosing system behavior and bottlenecks in production
  • DevOps practices: Familiarity with containerization (Docker), CI/CD pipelines (GitLab CI, Jenkins), and infrastructure-as-code (Ansible, Terraform)
  • Programming language versatility: Proficiency in additional languages that complement data platform work - C++ for performance-critical systems, Scala for distributed data processing with Apache Spark, or Rust for high-performance data engineering
  • Team leadership and management: Experience leading a development team, running sprints, conducting code reviews, mentoring engineers, and managing stakeholders' expectations
  • Message queues and streaming: Experience with Kafka, Redis, or similar event-driven architectures
  • Data orchestration: Exposure to Airflow or similar workflow orchestration frameworks
  • Frontend / full-stack awareness: Familiarity with modern web technologies (React, TypeScript) for building internal UIs and dashboards
  • Financial services or quantitative finance background
  • Open-source contributions or a public portfolio of technical work

What We Offer:

• Competitive and attractive compensation package with clear career road-map – where you feel challenged everyday
• We offer a strong culture of learning and development: training courses, library, speakers, share and learn events
• Learn from who sits next to you! Working in WQ you are surrounded by smart and talented people
• Premium Health Insurance and Employee Assistance Program
• Generous time-off policy, re-creation sabbatical leave (based on tenure), Trade Union benefits for staff and family
• Team building activities every month: Local engagement events – Employee clubs: football, ping-pong, badminton, yoga, running, PS5, movies, etc.
• Annual company trip and occasional global conferences – opportunity to travel and connect with our global teams
• Happy-hour with tea break, snacks and meals every day in the office!

#LI-QM1

Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.

• 5+ years of experience in software development and interest in running real-world applications at scale.
• Excellent problem-solving abilities and judgment with strong attention to detail
• Demonstrated experience developing scalable and robust software.
• Excellent coding skills, solid understanding of the broad Python ecosystem including Numpy, Pandas…
• Working knowledge in various database and messaging technologies such as SQL, Redis, Kafka etc
• Mature, thoughtful, with the ability to operate in a collaborative, team-oriented culture
• Experience with Linux environment and shell scripting.
• Bachelor’s degree in Computer Science or related discipline or equivalent job experience.
• Candidates need not have prior experience in financial services.

What We Offer:

• Competitive and attractive compensation package with clear career road-map – where you feel challenged everyday
• We offer a strong culture of learning and development: training courses, library, speakers, share and learn events
• Learn from who sits next to you! Working in WQ you are surrounded by smart and talented people
• Premium Health Insurance and Employee Assistance Program
• Generous time-off policy, re-creation sabbatical leave (based on tenure), Trade Union benefits for staff and family
• Team building activities every month: Local engagement events – Employee clubs: football, ping-pong, badminton, yoga, running, PS5, movies, etc.
• Annual company trip and occasional global conferences – opportunity to travel and connect with our global teams
• Happy-hour with tea break, snacks and meals every day in the office!
  
  #LI-VP1

Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.

About WorldQuant BRAIN:

BRAIN is a group within WorldQuant similar to a traditional B2C fintech setup. Our mission is to simplify quant finance and provide global remote-work opportunities to participants, while they learn quant finance, AI and ML concepts. WorldQuant BRAIN provides an advanced crowdsourcing platform for external participants to contribute signals, data, and more.

• 2+ years demonstrated experience developing scalable and robust software.
• Passion about software engineering, be strongly driven to build and run real-world applications at scale.
• Eagerness to learn and introduce new technologies. Be curious about what's happening in the tech world.
• Excellent coding skills, solid understanding of the broad Python ecosystem including Numpy, Pandas and Asyncio. Expertise in Python web frameworks such as Django, DRF, Flask or others.
• Experience with SQL databases (MySQL, PostgreSQL), including schema design, query optimisation and migrations.
• Experience with microservices, caching tools, data visualization, log collection and aggregation, search, queuing systems.
• Experience with Linux environment and shell scripting.
• Excellent debugging and problem solving skills.

What We Offer:

• Competitive and attractive compensation package with clear career road-map – where you feel challenged everyday
• We offer a strong culture of learning and development: training courses, library, speakers, share and learn events
• Learn from who sits next to you! Working in WQ you are surrounded by smart and talented people
• Premium Health Insurance and Employee Assistance Program
• Generous time-off policy, re-creation sabbatical leave (based on tenure), Trade Union benefits for staff and family
• Team building activities every month: Local engagement events, Employee clubs: football, ping-pong, badminton, yoga, running, PS5, movies, etc.
• Annual company trip and occasional global conferences – opportunity to travel and connect with our global teams
• Happy-hour with tea break, snacks and meals every day in the office!
  
  #LI-VP1

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.