We are looking for an experienced Solution Architect/Tech Lead to provide technical expertise in the AdTech domain, design high\-load systems, and contribute to pre\-sales activities. You will play a key role in shaping technical solutions for our clients, building reusable AdTech architectures, and leading the company’s internal knowledge development to grow the company’s competence. **WHAT YOU’LL BE UP TO:** **Pre\-Sales \& Client Engagement** * Participate in discovery sessions and client meetings. * Analyze business requirements and translate them into technical solutions. * Prepare architectural diagrams, high\-level designs, and effort estimates. * Support the sales team in RFP responses, tenders, and pitches. **Solution Architecture** * Design architecture for AdTech systems (RTB, DSP, SSP, CTV, data pipelines, attribution, privacy compliance). * Select an appropriate technology stack and justify architectural decisions. * Define non\-functional requirements (scalability, latency, cost efficiency, compliance). **Knowledge Management** * Build and maintain the AdTech knowledge base: reusable architectures, RFP boilerplates, glossaries, and case studies. * Conduct internal workshops and mentor engineers. * Develop and manage the company’s “AdTech Competence Center”. **Delivery Oversight** * Participate in early project phases after deal closure: architecture validation, team onboarding, and reviewing key decisions. **WHAT YOU’LL NEED TO HAVE:** **Experience:** * 5\+ years in designing and building high\-load distributed systems. * 2\+ years of experience in AdTech (DSP, SSP, RTB, DMP/CDP, attribution, programmatic buying, CTV) is a strong plus. * Proven track record of participating in pre\-sales/discovery sessions and RFPs. * Previous role as an architect or tech lead with experience guiding teams and making architectural decisions. **Technical Skills:** * Backend: Java / Scala / Go / Python (at least one strong stack). * Big Data: Kafka, Spark/Flink, ClickHouse, Druid, Presto/Trino. * Cloud: AWS / GCP (Pub/Sub, BigQuery, Kinesis, Redshift). * Databases: SQL/NoSQL (Postgres, Cassandra, DynamoDB). * API design (REST/gRPC, GraphQL). * Architectural patterns: microservices, event\-driven, streaming pipelines. * Strong understanding of OpenRTB, bid request/response flows, and low\-latency systems. * Knowledge of privacy regulations (GDPR/CCPA) and consent management solutions. **Soft Skills:** * Excellent client\-facing communication skills (from C\-level executives to engineers). * Ability to “sell” architectural decisions by demonstrating their business and technical value. * Leadership and mentoring skills to grow internal expertise. * English: Advanced (required for client meetings). **INTERVIEW STEPS:** * HR interview. * Technical interview. Job Types: Full\-time, Permanent Pay: R$60,030\.51 \- R$90,659\.48 per year Experience: * Adtech (Required)