Principal DevEx Engineer

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October 22

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RecargaPay

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Fintech • Finance • B2C

RecargaPay is a leading all-in-one payment platform in Brazil, dedicated to providing easy and secure access to mobile payments and digital financial services for everyone. The platform enables users to pay bills, recharge transportation and mobile phones, purchase gift cards, and make Pix transactions with credit cards. RecargaPay offers a comprehensive range of financial services, including cashback rewards, small loans, and a digital wallet with daily interest accrual. Additionally, they provide services to businesses, such as free business accounts, payment processing, and marketing solutions. With a focus on accessibility and innovation, RecargaPay strives to change how payments are made in Brazil.

201 - 500 employees

Founded 2010

💳 Fintech

💸 Finance

👥 B2C

💰 $10M Debt Financing on 2022-07

📋 Description

• Improve the developer experience end to end, eliminating friction. • Accelerate onboarding to first contribution, and lift productivity across the entire software delivery lifecycle. • Drive modernization and platform initiatives while guiding Staff/Senior engineers. • Deliver scalable, reliable, compliant, and cost-efficient solutions on AWS. • Translate day-to-day developer needs into golden paths and opinionated tooling. • Enable adoption through clear documentation, targeted training, and lightweight change-management. • Define and steer medium- and long-term architectural strategies aligned with company goals. • Lead technological transformations and modernizations of critical systems. • Serve as the technical authority for the Engineering and Architecture Chapters. • Mentor senior engineers and technical leaders, fostering a culture of technical excellence. • Promote AI-assisted engineering practices within your squad and chapter. • Codify architecture into practice, delivering reference implementations and golden-path templates. • Own API governance end to end, with contract-first workflows and compatibility rules. • Institutionalize reliability by defining SLIs and SLOs with teams. • Make observability the default through standardized metrics and logs. • Lead policy-as-code adoption across CI/CD, Kubernetes admission, and IaC. • Engineer safe delivery with trunk-based flows and reusable GitHub Actions. • Raise the security bar in services via OAuth2 scopes and JWT validation. • Design event topologies covering Kafka partitioning and retention policies. • Drive cost-aware architecture through capacity models and cost allocation. • Harden platform resilience with multi-AZ patterns and disaster-recovery objectives. • Deliver one-click developer environments to reduce onboarding and setup time. • Measure what matters by publishing DevEx and SRE scorecards. • Run lightweight technical-governance rhythms to prioritize enablers and eliminate systemic friction.

🎯 Requirements

• Academic background oriented toward Computer Science, Engineering, or Software Development disciplines. • Extensive hands-on experience in software engineering roles, with solid proficiency in Java (Spring Boot) and working knowledge of Python and asynchronous programming. • Strong foundation in Object-Oriented Programming and relational database systems. • Solid understanding of web and mobile application architectures, including security, session management, and development best practices. • Expertise in Domain-Driven Design and microservices architecture, with proven ability to design high-performance, scalable, and reliable distributed systems. • Demonstrated experience defining and executing architectural roadmaps aligned with business and developer-experience goals. • Deep, practical experience with AWS cloud-native development. • Expert-level knowledge of AWS core services: EC2, ECS/EKS, Lambda, API Gateway, CloudFront, S3, DynamoDB, RDS, SNS/SQS, CloudFormation, IAM, Secrets Manager, Parameter Store, CloudWatch, CloudTrail, Config, GuardDuty, Security Hub, and WAF. • Proven ability to design and operate multi-account AWS organizations, leveraging Control Tower, Service Catalog, SCPs, and cross-account IAM roles to enforce governance and isolation. • Advanced experience architecting VPC topologies, including Transit Gateway, private/public subnet design, NAT/GW cost optimization, and egress control for regulated environments. • Deep knowledge of networking in AWS. • Hands-on experience implementing observability pipelines at scale, integrating NewRelic, CloudWatch, Prometheus, Grafana, Datadog with OpenTelemetry collectors. • Familiarity with EKS internals: node group management, autoscaling, and Kubernetes cost/latency optimization. • Proven experience managing multi-region and multi-environment deployments. • Expertise in AWS security hardening and compliance controls, including IAM least-privilege modeling, KMS envelope encryption, CloudTrail auditing, GuardDuty detections, and automatic remediation with Lambda/Step Functions. • Deep understanding of container security, image signing, ECR scanning, and OPA/Rego policy design for admission controllers. • Advanced experience with Infrastructure as Code using Terraform (modules, workspaces, policy enforcement) and Pulumi (multi-language stacks, secrets providers, CI integration). • Proven ability to implement GitOps workflows, ensuring deterministic deployments and drift detection. • Strong policy-as-code practice to codify security/SRE guardrails across CI/CD and Kubernetes admission controllers. • Expertise automating application stack provisioning (app resources, service accounts, IAM bindings, egress controls) through reusable IaC modules and pipelines. • Deep understanding of progressive delivery (canary, blue/green, shadow traffic, automated rollback) and service mesh (Istio/Linkerd/App Mesh) for safe deployment strategies. • Mastery of resilience and reliability patterns: timeouts, bounded retries with jitter, circuit breakers, bulkheads, back-pressure, outbox/saga orchestration, and graceful degradation. • Deep knowledge of event-driven and streaming architectures (Kafka and others), including partitioning strategies, compaction/retention policies, rebalancing, ordering guarantees, exactly-once semantics, and schema evolution via registries. • Strong background in data performance engineering: caching (read-through/write-behind), connection pool tuning, pagination/cursoring, latency budgeting, and throughput modeling. • Proficiency in OpenTelemetry design (trace topology, span taxonomy, semantic conventions) and application of RED/USE methodologies embedded as code templates. • Experience with SLO-driven reliability: defining SLIs, error budgets, and reducing alert fatigue via multi-signal correlation. • Proficiency with production monitoring tools (NewRelic, Grafana, Datadog, CloudWatch) and advanced observability instrumentation. • Proven experience building self-service developer platforms (Backstage, Internal Developer Portals) that expose golden paths for application scaffolding, environment provisioning, and secure deployments. • Experience implementing event-driven DevEx tooling (e.g., ephemeral environments, automated CI insights, preview deployments). • Strong knowledge of API lifecycle management and governance (OpenAPI/AsyncAPI, contract testing, versioning, idempotency, error modeling). • Expertise in CI/CD automation and DevSecOps (GitHub Actions, CodeBuild/CodePipeline, artifact provenance, environment promotion, changelog automation). • Proficiency in feature-flag governance (lifecycles, kill switches, TTLs) and safe configuration rollout practices. • Experience integrating AI-assisted workflows (GitHub Copilot Enterprise, LLM-based linters and others) into development and CI pipelines, with measurable productivity impact. • Deep knowledge of identity and transport security: OAuth2, JWT validation, mTLS, KMS/HSM key rotation, and secrets lifecycle management. • Practical compliance-by-design experience translating PCI-DSS, KYC/AML, GDPR, and LGPD controls into technical patterns (tokenization, segmentation, audit trails, retention/erasure). • Experience leading AWS Well-Architected Framework reviews across all pillars (Security, Reliability, Performance, Cost, Operational Excellence, Sustainability). • Strong FinOps mindset: capacity modeling, load curve analysis, right-sizing, storage/egress optimization, and cost attribution by service. • Experience designing cost-aware architectures, balancing performance, resilience, and financial efficiency. • Practical understanding of service catalogs and dependency mapping for ownership visibility (e. g. Backstage). • Exposure to edge computing and CDN optimization (Lambda@Edge, CloudFront Functions, custom caching policies).

🏖️ Benefits

• Competitive and market-aligned salary. • Remote work — wherever you are, you’re part of the team! • Home office allowance through a monthly deposit in the RecargaPay app. • Health and dental plans with no co-pay. • Life insurance. • Flexible meal allowance (via Flash). • TotalPass membership to take care of your health. • Spanish or Portuguese classes.