Software Developer III

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🕒 April 15

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Voltz

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2020

💳 Fintech

👥 B2C

⚡ Energy

Fintech • B2C • Energy

Voltz is a fintech company that focuses on providing financial solutions for managing energy bills, specifically targeting customers of Energisa. With options for negotiating and parceling overdue energy invoices, it offers services that simplify payment processes and enhance financial inclusion for users. As part of the Energisa Group, Voltz aims to support clients in achieving financial stability while promoting innovative payment methods such as Pix and credit options, ultimately fostering economic development in Brazil.

📋 Description

• Be the technical owner of a domain or subsystem, ensuring its safe and healthy evolution over time. • Ensure the domain operates with agreed SLOs (latency/errors/availability) and actively work to improve reliability. • Lead technical planning and execution for the domain: decomposition, dependencies, risks, execution and validation. • Consistently raise the team's technical level: best practices, strong code reviews, references, documentation and standards. • Serve as an internal technical reference: support complex decisions, unblock discussions and reduce rework. • Lead incident response for your domain: mitigation, rigorous RCA and structured preventive actions.

🎯 Requirements

• TypeScript + Node.js (async/await, promises, error handling; event loop, streams and concurrency). • REST API development with OpenAPI (contracts, validation and status codes). • SQL (Postgres): queries, migrations, query and index optimization. • Git and PR workflow (small commits, rebase and simple conflict resolution). • Automated testing (unit, integration and contract) with Jest. • CI/CD and deployment: pipeline (lint/test/build/deploy), smoke tests, environment variables and logs. • Observability: structured logs, basic metrics and light tracing. • Messaging and resilience (BullMQ/RabbitMQ): retries, DLQ, idempotency and ordering when necessary. • Performance and scalability: profiling, common bottlenecks and trade-offs. • Applied basic system design: rate limiting, circuit breaker, bulkhead and graceful degradation. • Concurrency and integrity: locks and consistency (optimistic/pessimistic). • Knowledge of NoSQL and caching (TTL and risks of inconsistency). • Incident management: mitigation, RCA/post-mortem and preventive actions.

🏖️ Benefits

• Meal allowance or food voucher to cover groceries for your home or meals at your favorite restaurant; • Health and dental insurance for you and your family; • Private pension plan for your financial reserve and investments; • Life insurance to provide peace of mind for you and your loved ones; • Profit sharing as an incentive for your work and results; • Well-being programs that ensure employee wellness and promote health; • Wellhub access to more than 18,000 gyms across Brazil.