Software Architect (AdTech)

Location: São Paulo, SP, Brazil; remote or hybrid cooperation can be discussed depending on location.

Company

Join Sigma Software’s AdTech Business Unit, which develops advertising technology platforms for established industry leaders and innovative startups across the programmatic advertising ecosystem.

What you will do

• Define and drive scalable AdTech architectures and distributed cloud platforms across multiple initiatives.
• Own architectural decisions, technical direction, governance principles, and engineering standards aligned with business and product strategy.
• Lead technical discovery, architecture assessments, solution design, customer presentations, workshops, proposals, estimations, and PoCs.
• Translate complex business requirements into scalable, secure, and future-proof solutions while supporting customer growth and pre-sales opportunities.
• Guide engineering teams on architecture implementation, distributed systems design, scalability, and performance optimization.
• Evaluate emerging technologies, including AI-driven solutions, and mentor engineers through technical knowledge sharing.

Requirements

• At least 7 years of commercial software development experience, including a minimum of 3 years in architecture or technical leadership roles.
• Strong hands-on expertise in at least two of Golang, Rust, Node.js, and C++.
• Experience designing high-load, low-latency distributed systems and cloud-native architectures.
• Strong understanding of microservices architecture, messaging systems, caching, and API design principles.
• Hands-on experience with Docker, Kubernetes, Helm, and production environments on AWS, GCP, or Azure.
• Experience with REST APIs, gRPC, WebSockets, and event streaming technologies such as Kafka, Kinesis, or Pub/Sub.
• Experience in customer-facing technical consulting and pre-sales activities.
• Strong communication, presentation, stakeholder management, independent initiative, and ability to work in fast-paced environments.
• At least Upper-Intermediate English is required.

Nice to have

• Commercial AdTech experience and knowledge of programmatic advertising ecosystems, including SSPs, DSPs, AdServers, Header Bidding, OpenRTB, Prebid, and VAST.
• Understanding of Real-Time Bidding systems and auction mechanics.
• Experience with mobile advertising ecosystems for iOS and Android.
• Experience designing SDKs, APIs, libraries, or integration frameworks.
• Familiarity with advertising analytics, fraud detection, consent management, and real-time data processing solutions.
• Understanding of GDPR, CCPA, and privacy-first architectures.

Culture & Benefits

• Full-time position within an AdTech Business Unit of more than 300 experts.
• Work with international customers, engineering teams, and business stakeholders on complex advertising technology platforms.
• Remote or hybrid cooperation format can be discussed depending on location.
• Professional environment focused on ownership, collaboration, quality, mentoring, and knowledge sharing.