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Technical Lead
Hitss Brasil
full-time
Posted on:
Location Type: Hybrid
Location: São Paulo • 🇧🇷 Brazil
Visit company websiteJob Level
Senior
Tech Stack
AWSAzureCloudDynamoDBGoGoogle Cloud PlatformGrafanaGraphQLIoTJavaJavaScriptKafkaMySQLNode.jsNoSQLPostgresPrometheusPythonTerraform
About the role
- 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.
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
IoT solution architectureAWS IoTAzure IoTGCP IoTTerraformCloudFormationCI/CDMQTT4G5G
Soft skills
technical leadershipmentoringcommunicationcollaborationproblem-solvingdocumentationinnovationteam developmentprioritizationstakeholder engagement
Certifications
degree in Engineeringdegree in Computer Sciencedegree in Telecommunications
