.NET Jobs in Hanoi.
All active .NET roles based in Hanoi.
Pick a job to read the details
Tap any role on the left — its description and apply link will open here.
Senior Software Engineer, Windows/Desktop Applications - Hanoi, Vietnam
Share this job
The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies
- Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI (or related UI frameworks), C#, XAML, and — when needed — C++.
- Define and enforce best-practices for Windows desktop development across the codebase: code architecture, performance, memory usage, responsive UI, cross-version compatibility (Windows 10/11+), and maintainability.
- Drive accessibility efforts: integrate and validate support for accessibility APIs (e.g. Microsoft UI Automation or other relevant Windows accessibility frameworks), ensure UI controls, focus management, keyboard navigation, screen-reader support, and usability for users with disabilities.
- Collaborate closely with product designers, UX researchers, QA, and other stakeholders to shape feature planning, UI/UX architecture, and long-term roadmap for the Windows platform.
- Take ownership of full lifecycle of features: conception → design → implementation → testing → release → maintenance. Ensure quality, reliability, and consistency across releases.
- Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, or compatibility problems — and propose robust architectural or design solutions.
Required:
- 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
- Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
- Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
- Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
- Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
- Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
- Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
- A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.
Preferred / Bonus:
- Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
- Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
- Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
- Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
- Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
- Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.
What we offer
- A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
- A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
- Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
- Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
- A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.
Think you’re a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.
Not looking but know someone who would make a great fit?
Refer them!
Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
Ready to apply?
Apply to Speechify
The Company
RightShip is the world’s biggest third party maritime due diligence organization, providing expertise in global safety, sustainability and social responsibility best practices.
We bring together years of industry expertise with the output from analytics and large data sets to provide our safety and environmental scoring systems, recommendations and consultancy services.
Using leading data and technology, we aim to set new benchmarks in environmental protection. We support global initiatives and action influencing practical and impactful change, enabling “win-win” for business and the environment.
To find out more visit RightShip.com.
What we offer
We offer a place where you know you are contributing to an organization who are constantly working to ensure ships are safe as possible so that crew and cargo are protected. We are passionate about maritime efficiency, safety and sustainability practices.
We offer generous rewards. Our base salary is competitive, we support employee wellbeing and provide our employees with a Healthy Living Allowance and our annual incentive scheme is awesome. We have some great talent who are happy to share their experience and skills to help you on your way and we are committed to professional development to make sure your career keeps growing while you’re working with us.
What makes RightShip a great place to work at:
RightShip is an equal opportunity employer, and we champion diversity. Our teams are composed of individuals from different geographies, cultures, religions, ethnicities, races, genders, sexual orientations, abilities, and generations. We believe that a diversity of experiences makes us stronger—as individuals, as communities and as an organization.
Don’t meet every single requirement of this role? Still apply! Research tells us that that women and underrepresented groups are less likely to apply unless they meet every single requirement. At RightShip we believe that the right hire is someone who makes an addition to our culture, rather than someone who fits in and conforms to our status quo. We want to add team members who not only value RightShip standards and workplace culture, but also bring an aspect of diversity that positively contributes to our work environment. If you are excited about this role, or about our company in general, we would love to hear from you!
RightShip is seeking an exceptional Software Architect to join our team. This role will help us continue building world-class, data-driven products to solve some of the most challenging problems in the maritime industry by maintaining and improving quality across critical data sets.
This role requires an individual who is responsible for designing, developing, and overseeing high-level software architecture decisions to ensure scalability, performance, security, and maintainability of systems. They serve as a bridge between business requirements and technical implementation, guiding teams through design and development best practices.
Major Responsibilities
- Architectural Design: Define and document software architecture aligned with business goals, scalability needs, and technical standards.
- Technology Strategy: Evaluate and recommend appropriate technologies, frameworks, and tools for long-term system success.
- Collaboration: Work closely with stakeholders, product managers, and engineering teams to translate business needs into robust technical solutions.
- Code and System Reviews: Oversee code quality and architecture compliance through peer reviews, technical audits, and mentoring.
- Performance Optimization: Identify bottlenecks, troubleshoot technical issues, and optimize system performance.
- Security & Compliance: Integrate security standards and ensure compliance with relevant regulations and best practices.
- Documentation: Maintain detailed architecture documentation, design patterns, and guidelines.
- Mentorship: Support and mentor software engineers, fostering technical growth and knowledge sharing within teams.
Qualifications, Skills & Experience
- Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
- Experience: 8+ years of software development experience, with at least 5 years in an architectural or senior technical leadership role.
- Technical Expertise:
- Proficiency in multiple programming languages (e.g., .NET, Python, TypeScript).
- Experience with frameworks such as Angular / Aurelia / React
- Experience using AI-assisted coding tools (e.g., GitHub Copilot) beyond basic code completion
- Understanding of prompt engineering, fine-tuning, and RAG (Retrieval-Augmented Generation) pipelines
- Experience working with AI models and frameworks such as OpenAI GPT, Anthropic Claude, Meta Llama, Mistral, or Gemini.
- Deep understanding of software design patterns
- Familiarity with Domain-Driven Design (DDD) and Clean Architecture principles
- Proficiency in event sourcing and CQRS for scalable, decoupled systems
- Hands-on experience with event-based architectures and messaging platforms such as:
- Azure Service Bus, Event Hub, Event Grid
- Kafka, RabbitMQ, or AWS SNS/SQS
- Understanding of event choreography vs orchestration patterns
- Strong experience in Azure cloud architecture - especially AKS, Functions, App Services, Storage, and Application Insights
- Knowledge of OAuth2, OpenID Connect, JWT, and Azure AD B2C
- Understanding of data privacy and secure coding standards (ex. OWASP Top 10)
- Experience with threat modelling and zero-trust architecture principles
- Exposure to container orchestration (Docker, Kubernetes)
- Familiarity with serverless and microservices patterns
- Knowledge of Version Control such as GitHub / Bitbucket
- Deep understanding of system design principles, APIs, cloud architecture (preferably Azure), and microservices (containerization experience is a plus).
- Knowledge of database design (SQL and NoSQL), message queues, and distributed systems.
- Soft Skills:
- Excellent communications and written skills in English,
- Outstanding analytical, problem-solving, and communication skills
- Leadership abilities
- High attention to detail
- Adept at working with cross-functional groups across multiple geographies
- Able to deliver high-quality results with minimal supervision
RightShip is an Equal Opportunity Employer and values diversity, enables access and promotes inclusion in our workplace. You must have the right to live and work in this location to apply for this job.
Ready to apply?
Apply to RightShip