Senior Software Engineer (.NET, JavaScript/TypeScript) - OP01978

Dev.Pro is a software engineering services company that helps technology companies meet growth ambitions through talent outsourcing. They provide skilled technology engineers to partner with clients, enabling them to achieve complex technical objectives and create business value.

Dev.Pro

Employee count: 501-1000

Brazil only

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🟢 Are you in Brazil or Argentina? Join us as we actively recruit in these locations, offering a comfortable remote environment. Submit your CV in English, and we'll get back to you!

We invite an experienced Senior Software Engineer to join our team. You’ll work across backend and frontend systems, modernizing legacy platforms and developing new full-stack features using .NET, C#, and JavaScript/TypeScript. Collaborating closely with cross-functional teams and stakeholders, you’ll help deliver high-quality software for a leading U.S. payment processing solution provider serving over 275,000 businesses.

🟩 What's in it for you:

Gain hands-on FinTech experience, collaborating with a leading U.S. payments company
Modernize internal systems and build full-stack features using .NET, C#, and JavaScript/TypeScript frameworks
Enhance your cloud expertise with GCP, AWS, or Azure, supporting future migration initiatives

✅ Is that you?

5+ years of commercial experience with C# and .NET (.NET / .NET Core)
JavaScript and TypeScript experience with at least one modern framework (Angular, React.js, or Vue.js)
Strong knowledge of SOLID principles and clean code practices
Experience building REST APIs and distributed/microservice-based systems
Hands-on experience with authentication and authorization
Solid experience with SQL Server and relational databases
Proficiency with unit testing (NUnit, xUnit)
Hands-on cloud experience with GCP, AWS, or Azure
Experience working in Agile environments (Scrum, Kanban)
High level of autonomy, ownership, and accountability
Strong communication and collaboration skills
Upper-Intermediate English level

Desirable:

Experience with legacy systems (classic ASP, older .NET)
Knowledge of NoSQL databases
Experience with Docker and CI/CD pipelines
Integration and automation testing experience
FinTech/payments domain experience

🧩Key responsibilities and your contribution

In this role, you’ll contribute to the evolution of our client’s internal servicing applications, developing new features and supporting both backend and frontend systems.

Design, develop, and maintain full-stack features using .NET, C#, and JavaScript/TypeScript
Modernize and integrate legacy systems with new platforms
Ensure software quality through unit, integration, and automated testing
Collaborate with cross-functional teams and stakeholders to understand requirements and design effective solutions
Take ownership of tasks, proactively resolve technical issues, and maintain platform stability and performance
Work with cloud environments and support future cloud migration initiatives
Participate in Agile ceremonies, including sprint planning, refinements, and daily stand-ups
Contribute to technical documentation and share knowledge with team members

🎾 What's working at Dev.Pro like?

Dev.Pro is a global company that's been building great software since 2011. Our team values fairness, high standards, openness, and inclusivity for everyone — no matter your background

🌐 We are 99.9% remote — you can work from anywhere in the world
🌴 Get 30 paid days off per year to use however you like — vacations, holidays, or personal time
✔️ 5 paid sick days, up to 60 days of medical leave, and up to 6 paid days off per year for major family events like weddings, funerals, or the birth of a child
⚡️ Partially covered health insurance after the probation, plus a wellness bonus for gym memberships, sports nutrition, and similar needs after 6 months
💵 We pay in U.S. dollars and cover all approved overtime
📓 Join English lessons and Dev.Pro University programs, and take part in fun online activities and team-building events

Our next steps:

✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Internal interview — ✅ Client interview — ✅ Offer

Interested? Find out more:

Apply now

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About the job

Apply before

Feb 08, 2026

Posted on

Dec 10, 2025

Job type

Full Time

Experience level

Senior

Location requirements

Brazil

Hiring timezones

Brazil +/- 0 hours

About Dev.Pro

Learn more about Dev.Pro and their company culture.

View company profile

We are a software development partner that empowers innovative technology companies to realize their growth ambitions and accelerate their time-to-market. Founded in 2011, we've built our reputation on being result-driven and quality-obsessed. Our core mission is to provide custom outsourced software development experiences, assembling tailored teams and delivering solutions that meet any skillset, complexity, or scale. We pride ourselves on our ability to help tech-enabled businesses leverage outsourced talent, enabling them to scale quickly and achieve their strategic objectives. Our skilled technology engineers collaborate closely with our clients, becoming an extension of their teams to tackle complex technical challenges and create tangible business value. Over the years, we've had the privilege of working with a diverse range of businesses, from Fortune 500 companies to ambitious, technology-driven startups. This breadth of experience has allowed us to continuously evolve and refine our processes, ensuring we consistently deliver beyond expectations.

Our global team of IT professionals is the backbone of our success. We embrace a diversified, remote work model, with dedicated development teams operating in over 55 countries across 5 continents. This global footprint provides us with the infrastructure, diverse skillsets, and flexibility necessary to deliver high-quality software development services for projects of any complexity or scale. We currently have over 950 talented experts and are continually growing. Our journey began with the vision to leverage years of experience working with development teams worldwide, offering select companies and partners exceptional outsourced software development services. Now, more than a decade later, Dev.Pro stands as a globally distributed company, committed to helping our partners navigate the ever-changing tech landscape and achieve sustained growth. Our commitment to transparency, collaboration, and continuous improvement ensures that we not only meet but exceed the expectations of our clients, fostering long-term partnerships built on trust and mutual success.

Tech stack

Learn about the tools and technologies that Dev.Pro uses to build, market, and sell its products.

View tech stack

React Native

Flutter

Ionic

Node.js

Spring

Ruby on Rails

.NET

JavaScript

Python

Java

PHP

37 more

Dev.Pro employees can create an account to update this tech stack.

Employee benefits

Learn about the employee benefits and perks provided at Dev.Pro.

View benefits

Paid Time Off

You will get 30 paid rest days per year to use as holidays/vacation/other on the desired and requested dates.

Flexible Business Hours

We offer 2 flexible business hours during your workday to use as a lunch break or take care of a personal matter.

Remote Work

You can choose whether you want to work from the office in one of our locations, from your home office, or in a coworking space.

Healthcare

We offer 5 paid sick leave days and up to 60 days of medical leave in case you need it. We also hold wellness marathons and promote activities to keep you motivated under remote work conditions and support your well-being and mental health.

View Dev.Pro's employee benefits