Hybrid Technical Lead

at Hitss Brasil

• Job title: Technical Lead
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Azure, Cloud, DynamoDB, Google Cloud Platform, Grafana, GraphQL, IoT, Java, JavaScript, Kafka, MySQL, Node.js, NoSQL, Postgres, Prometheus, Python, Terraform, Go
• Location requirements: Hybrid, Sao Paulo, Brazil

About the role

• Lead technical teams and define end‑to‑end IoT solutions (device to cloud), focusing on security, scalability and observability. Coordinate architectures, integrations and technical roadmaps to deliver production‑grade IoT systems.

Responsibilities

• Provide technical leadership for development and engineering teams (cloud, embedded/firmware, networking, data), ensuring best practices, quality, and predictable delivery;
• Define and evolve end-to-end IoT solution architecture: device → gateway → connectivity (4G/5G, NB‑IoT, LTE‑M) → platform/ingestion → data lake → APIs/front-ends;
• Select and standardize stacks, frameworks, and managed cloud services (e.g., AWS IoT, Azure IoT, GCP IoT, Kafka, time-series DBs), balancing cost, security, performance, and time-to-market;
• Orchestrate the technical roadmap, prioritizing debt, scalability, observability, SRE, and test/CI‑CD automation;
• Ensure security by design: device identity, PKI/certificates, TLS, hardening, secure OTA, network segmentation, key management and compliance (LGPD, ISO 27001);
• Lead architecture reviews, code reviews and experiments (PoCs) to validate technologies, components and vendors;
• Work with business, product and pre-sales teams to translate functional and non-functional requirements into clear, feasible technical solutions;
• Define SLAs/SLOs, implement end-to-end monitoring (device telemetry, connectivity, platform, APIs) and respond to critical incidents;
• Coordinate integrations with partners/ecosystem (OEMs, modules/Cat‑M/NB, eSIM platforms, device management platforms) and with internal systems (BSS/OSS);
• Support cost management (FinOps) and optimization of cloud and connectivity consumption;
• Develop the team: mentoring, career paths, dissemination of best practices and engineering culture;
• Document architectural decisions (ADRs), standards and operational runbooks;
• Participate in technical committees and innovation forums, bringing trends (5G SA, edge, eUICC/eSIM, AI at the edge).

Requirements

• Degree in Engineering, Computer Science, Telecommunications or related fields;
• Strong experience (5–8+ years) in software/systems engineering and 2–3+ years as a Technical Lead/Architect;
• Proven experience with IoT production projects (E2E: device → connectivity → cloud/platform → integrations);
• Knowledge of public cloud (AWS, Azure or GCP) with IaC (Terraform/CloudFormation) and CI/CD (GitHub Actions/GitLab CI);
• IoT protocols and platforms: MQTT, CoAP, LwM2M; AWS IoT Core/Azure IoT Hub (or equivalents), brokers (MQTT/Kafka);
• IoT connectivity: 4G/5G, NB‑IoT, LTE‑M, private APNs, eSIM/eUICC, VPNs;
• Security by design: PKI, certificates, mTLS/TLS, key management, hardening and secure OTA; basic knowledge of LGPD;
• Observability and SRE: metrics, logs and traces; Prometheus/Grafana/CloudWatch/App Insights; SLO/SLI definition;
• Distributed systems architecture: microservices, event-driven, pub/sub, resilience (retry/backoff, idempotency, circuit breaker);
• Integrations: REST/GraphQL APIs, authentication/authorization (OAuth2/JWT), webhooks and messaging;
• Languages: one primary back-end language (Java/Go/Node.js/Python) and fundamentals in C/C++ for firmware; scripting (Python/Bash);
• Databases: time-series (InfluxDB/Timescale), NoSQL (DynamoDB/Cosmos/Firestore) and relational (PostgreSQL/MySQL);
• Practice with code reviews, defining technical standards and leading engineering rituals;
• Tools: Git, Jira/Confluence, Postman, Wireshark, device simulators, OpenAPI/Swagger.

Benefits

• HITSS BRASIL is a multinational within the Claro group, operating for over 30 years in digital solutions and IT services across 7 countries.
• Combining unmatched experience and specialized skills, our 5,000 employees are engaged in building what’s next every day.
• We focus on innovation with integrity and strive to develop inclusive, responsible and sustainable solutions for our employees and customers.
• Through our diversity and inclusion pillar, everyone has equal opportunities to build their careers.
• We do not discriminate based on gender, religion, race, sexual orientation, social status or disability.
• If you enjoy challenges, trends, and agile, innovative processes, this is the place for you.