Lead Software Engineer

Ciklum is looking for a Lead Software Engineer to join our team full-time in Brazil.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Lead Software Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Take end-to-end ownership of a working, well-documented cloud platform and carry it to production maturity. The system — a federated micro-frontend web application (React + Module Federation) backed by an event-driven Node.js/TypeScript backend on Azure —was designed and built by our Software Architect, who is transitioning to a part-time role. You will inherit the codebase, architecture docs, runbooks, and CI/CD; lead a development team of five; and work directly with the architect during the transition. You will interface with the PMO and Infra/DevOps teams. All work is delivered in a SOC 2, HIPAA, and PCI certified environment. This is a hands-on leadership role: roughly equal parts building, reviewing, and leading.

The stack:

React 18 + Vite + Module Federation micro-frontends (MobX, Tailwind), Node.js/TypeScript
services on Azure Container Apps · Azure Service Bus (event-driven, transactional outbox, KEDA), PostgreSQL (Sequelize / Prisma), SSE streaming, LLM vendor integration, Microsoft Entra ID (MSAL), Terraform for all infrastructure, Azure DevOps CI/CD (OIDC, Key Vault–linked), Docker Compose local development.

Responsibilities:

• Own and extend the platform host and its federated modules — backend services, REST APIs, and React micro-frontends
• Preserve the platform's durability and tenancy invariants: transactional outbox, idempotent processing, emit-after-commit SSE, tenant-scoped Postgres
• Land the in-flight Clerk + Microsoft Entra ID and own the role-based access policy layer
• Own Terraform infrastructure and Azure DevOps pipelines end to end
• Manage and mentor the development team (currently five, subject to change), run code reviews, and enforce documented engineering conventions; direct contractors where applicable
• Partner with the architect (part-time) on knowledge transfer and design decisions; report progress, risks, and resourcing to the PMO + Department VP
• Troubleshoot distributed-system issues across Azure services, networking, messaging, and application layers

Requirements:

• 6+ years of professional software development, including technical leadership of a production system (delivery oversight, mentoring, performance management)
• Expert Node.js and TypeScript; production HTTP services (Express or similar) with schema-validated boundaries (Zod or similar)
• Strong production React: hooks, component architecture, reactive state management (MobX or comparable)
• Hands-on Azure: Container Apps (or deep container-orchestration background), Service Bus (or Kafka / RabbitMQ / SQS), Key Vault, Managed Identity
• Depth in event-driven architecture: brokers, transactional outbox, idempotency, dead-letter handling, long-running async workflows
• Production PostgreSQL: schema design, migrations, ORMs, multi-tenant isolation
• Terraform and Azure DevOps (or comparable CI/CD tooling); Docker and Docker Compose
• Bachelor's degree in Computer Science or a related field, or equivalent practical experience

Desirable:

• Module Federation or micro-frontend architecture in production
• LLM API integration (Anthropic, OpenAI, or Azure OpenAI): streaming and long-running generation jobs
• Microsoft Entra ID (MSAL) and/or Clerk; OIDC / JWKS token verification
• Vitest or Jest across multiple test layers; Supertest
• Experience engineering within SOC 2 / HIPAA / PCI constraints

What’s in it for you?

• Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance and mental health programs, 5 undocumented sick-leave days per year
• Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company-paid certifications
• Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
• Long-term employment with 20 working-days paid vacation and local bank holidays
• Flexibility: 100% remote work mode
• Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential
• Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
• Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

As we expand into Latin America, every Ciklumer is helping to shape our story. Collaborate with seasoned experts and make a global impact backed by two decades of industry leadership.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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