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Senior Software Engineer, Windows/Desktop Applications - Rio de Janeiro, Brazil
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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.
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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
ABOUT THE ROLE
We are looking for a Senior Software Engineer (Backend/Infrastructure) to join the VTEX Network team. This team manages the core connective tissue of our cloud platform, being responsible for CDN, Cloud Connectivity, Ingress, DNS, and Service Mesh.
In this role, you will tackle one of our most critical engineering challenges: the evolution of our Service Mesh. Currently, VTEX relies on a highly performant, custom-built router (developed in .NET) that acts as our service mesh, processing millions of requests per second and serving as the backbone for all VTEX applications. Your mission is to help evolve this mission-critical infrastructure, leading the transition toward a market-standard stack (like Istio), with zero downtime and absolute reliability.
This is a role at the deep intersection of software engineering and scalable infrastructure, requiring extreme care for performance, resilience, and system architecture.
ABOUT THE TEAM
The Cloud Network team at VTEX is responsible for ensuring the reliability, scalability, and performance of our platform, which supports thousands of stores worldwide.
As part of a recent transformation, the team is focusing on building a new generation of infrastructure systems, including the evolution of Service Mesh, networking, and compute layers.
Our mission is to create a platform where infrastructure complexity is abstracted, enabling engineers to move faster while maintaining high standards of reliability and performance.
WHAT YOU WILL DO
- Drive Architectural Evolution: Lead the technical strategy and execution to migrate our custom routing layer to a modern, market-standard Service Mesh (e.g., Istio).
- Build for Extreme Scale: Design, develop, and maintain network infrastructure components that sustain millions of requests per second with incredibly low latency.
- Operate Mission-Critical Systems: Ensure the continuous availability and resilience of VTEX's core network services (Ingress, DNS, Service Mesh, CDN) that impact thousands of stores globally.
- Master Service Design: Apply deep service design principles to create scalable, robust, and easily maintainable backend services and infrastructure tooling.
WHO YOU ARE
- Experienced Backend/Platform Engineer: You have a strong background in Software Engineering (Backend) with deep, hands-on experience managing and evolving Kubernetes infrastructure.
- High-Scale Veteran: You have 3+ years of experience operating, troubleshooting, and designing systems for mission-critical environments with massive throughput (millions of requests per second).
- System Design Expert: You possess profound knowledge of service design, distributed systems, networking concepts (TCP/IP, HTTP, DNS, Proxies), and microservices communication.
- Technically Versatile: You are comfortable working with complex legacy systems while building the future. Experience with .NET is a significant advantage, as it will help you understand and refactor our current custom router. Familiarity with Service Mesh solutions (Istio, Envoy) is highly desired.
- Effective Communicator: You have a proven ability to negotiate technical constraints and collaborate seamlessly with different engineering teams to align goals and execute platform-wide changes.
- Language: Fluent English to collaborate in our global environment.
#LI-Remote
About VTEX
VTEX (NYSE: VTEX) is the composable and complete commerce platform that delivers more efficiency and less maintenance to organizations seeking to make smarter IT investments and modernize their tech stack. Through our pragmatic composability approach, we empower brands, distributors, and retailers with unparalleled flexibility and comprehensive solutions, enabling them to invest solely in what provides a clear business advantage and boosts profitability. VTEX is trusted by 2,400 global B2C and B2B customers, including Carrefour, Colgate, Motorola, Sony, Stanley Black & Decker, and Whirlpool, having 3,400 active online stores across 43 countries (as of FY ended on December 31, 2024).
Founded in the year 2000, VTEX has a history of being unstoppable. Completely against the odds, VTEX is leading a high-tech industry and positioned above market giants. We are building an extraordinary future with more than 1,300 employees scattered across 25 locations in 16 countries in Latin America, North America, Europe, and Asia. For more information, visit www.vtex.com.
At VTEX, you will work in a challenge-driven environment and collaborate with amazing peers. If you are powerful individually, join us, and we will be unstoppable together.
BENEFITS
- Annual profit-sharing program and equity eligibility;
- Health, dental, and life insurance with national coverage provided by VTEX;
- Annual budget for professional development in Tech;
- Language development incentive program (English, Spanish, Portuguese);
- Flexible meal allowance;
- Extended parental leaves;
- Child-care assistance;
- Flexible work schedule and remote-first culture;
- Financial assistance to build your work-from-home setup;
- Wellness program;
- Free shipping on 1000+ VTEX stores
Ready to apply?
Apply to VTEX
Dá uma olhada no seu papel nessa #revolução:
⇨ Atuar em um produto sólido no mercado e com regras de negócios agradáveis;
⇨ Escrever código limpo, de fácil manutenção, utilizando as melhores práticas de desenvolvimento de software;
⇨ Procurar sempre criar para o Trinks a melhor experiência de uso para o usuário final, trabalhando de perto com os especialistas de UX;
⇨ Atuar com um time de desenvolvedores de qualidade e contar com o auxílio de profissionais experientes para implementar as melhores soluções;
⇨ Estar sempre crescendo e se desenvolvendo tecnicamente e profissionalmente;
⇨ Participar de times geograficamente distribuídos.
O que você precisa para o match:
⇨ Domínio em uma ou mais linguagens de programação - aqui você trabalhará com C#;
⇨ Conhecimento em um ou mais frameworks MVVM (AngularJS, VueJS, React e/ou similares);
⇨ Experiência no desenvolvimento de API/Rest de alta escalabilidade;
⇨ Saber aplicar padrões de projeto;
⇨ Conhecer práticas de entrega contínua;
⇨ Domínio de um ou mais banco de dados relacionais;
⇨ Gostar de compartilhar conhecimentos e trabalhar em equipe.
Saca só o que oferecemos:
🏠 100% Home office;
⏳ Contratação CLT (40 horas semanais);
💰 Auxílio home office;
🍴 Vale alimentação e vale refeição;
🏥 Plano de Saúde Bradesco Saúde (custo zero para o colaborador);
🏥 Plano Odonto Bradesco Saúde (custo zero para o colaborador);
🎓 Incentivo ao Desenvolvimento: PDI, Capacitações, Feedbacks, Cursos da Alura, Desconto com Faculdades e Cursos de Idiomas.
💰 Bônus por indicação de talentos;
🤸 TotalPass (plano academia);
🎉 Day off de aniversário e tempo de casa.
Como é o ambiente de trabalho?
Estamos em home office desde março de 2020 e nos reinventamos para ficarmos bem pertinho dos nossos TrinkSouls.
Se liga em como funciona o dia a dia por aqui:
💬 Trinks Talks e TrinksLetter
São as reuniões com a empresa toda! Por aqui falamos sobre resultados mensais, próximos desafios, novidades de cada área…
🎉 Ações comemorativas!
Halloween!? Temos concurso de fantasia!
Dia das Crianças!? Os minis TrinkSouls também participam!
Dia do estagiário(a), o mimo é por nossa conta!
E não para por aí… sempre quando temos alguma data importante, o time de Pessoas e Cultura já entra em ação para garantir que seja um dia especial 🧡
😎 Day off de aniversário e day off de tempo de casa
Os momentos de lazer não ficam de fora.. Você pode aproveitar para comemorar do jeito que preferir com uma folguinha no meio da semana, nada mal né!?
Nosso ambiente é descontraído e com muito aprendizado! #VemProTrinks 😉
Ready to apply?
Apply to Trinks