Senior Software Engineer

Siemens Energy; Rio de Janeiro; Hybrid; BRL 120,000 - 180,000; Full time

Job summary

Siemens Energy Brasil Ltda. is seeking a Senior Software Engineer in Rio de Janeiro. You will design and evolve modern architectures, lead engineers, and collaborate with client teams on solution design and technical decisions.

You will set engineering standards, perform code reviews, coach developers, and ensure secure, reliable, and scalable software. Responsibilities include driving architecture reviews, ensuring non-functional requirements, and guiding the development of .NET services and

Qualifications

• Bachelor's degree in computer engineering, computer science, or related field.
• Strong experience in software development with AI experience.
• Solid architectural knowledge: DDD, CQRS, monolith vs microservices, event-driven.
• Proven technical leadership including code reviews and guidance on best practices.
• Deep knowledge of the .NET ecosystem (C#, Core, API design, async, databases).
• Experience with cloud environments, containers, and CI/CD (Azure/AWS/GCP).
• Solid understanding of observability and security fundamentals.
• Experience collaborating with frontend teams and modern testing practices.
• Advanced English proficiency.

Responsibilities

• Define and evolve application architectures (monoliths, microservices, event-driven).
• Lead architectural reviews and technical decision-making, balancing trade-offs.
• Ensure non-functional requirements (reliability, observability, security, performance).
• Drive the development of high-quality .NET services and APIs with clear direction.
• Establish and enforce engineering best practices through code reviews and CI/CD alignment.
• Act as a technical leader, mentoring the team and enabling scalable, observable solutions.

Skills

Software development

AI experience

Architectural knowledge

Technical leadership

C#/.NET

Cloud & CI/CD

Observability & security

Frontend collaboration

Advanced English

Education

Bachelor's degree in computer engineering, computer science, related engineering or related field

Tools

Azure

AWS

GCP

Containers

CI/CD

Job description

Senior Software Engineer

About the Role

Job ID 294547 Location Brazil Rio de Janeiro Rio de Janeiro Remote vs. Office Hybrid (Remote/Office) Company Siemens Energy Brasil Ltda. Organization Transformation of Industry Business Unit Electrification - Automation - Digitalization Full / Part time Full-time Experience Level Professional / Experienced

A snapshot of your day

We are looking for a Senior Software Engineer with deep expertise in software development, who can design and evolve modern architectures, lead engineers through best practices, and collaborate directly with client (analysts, architects and others) on solution design and technical decisions. You will set engineering standards for the team, perform code reviews (PRs), coach developers, and ensure we deliver secure, reliable, and scalable software.

How You’ll Make an Impact

• Define and evolve application architectures (monoliths, microservices, event-driven), ensuring clear domain boundaries, integration patterns, and API contracts.

• Lead architectural reviews and technical decision-making, balancing trade-offs across scalability, performance, security, and cost.
• Ensure non-functional requirements (reliability, observability, security, and performance) are embedded throughout design and delivery.
• Drive the development of high-quality .NET services and APIs, setting technical direction for standards, versioning, and documentation.
• Establish and enforce engineering best practices through code reviews, CI/CD alignment, clean and secure coding standards.
• Act as a technical leader, mentoring the team, fostering continuous learning, and enabling scalable, observable solutions.

What You Bring

• Bachelor's degree in computer engineering, computer science, related engineering or related field
• Strong experience in software development and AI experience
• Strong experience in software development with solid architectural knowledge (DDD, CQRS, monolith vs. microservices, event-driven systems).
• Proven technical leadership, including code reviews, branching strategies, and guidance on best practices.
• Deep knowledge of the .NET ecosystem (C#, Core, API design, async programming, relational databases).
• Experience with cloud environments, containers, and CI/CD pipelines (Azure, AWS, or GCP).
• Solid understanding of observability and security fundamentals.
• Experience collaborating with front-end teams and applying modern testing practices.
• Ability to discuss solutions with client architects, negotiate trade-offs, and justify decisions.
• Advanced English.