Design and implement fullstack products and systems focused on growth (e.g., dynamic landing pages, acquisition automations, internal sales and CRM tools, A/B experiments).
Work side by side with internal stakeholders (Growth, Data, Marketing, CX, Product) to identify technical opportunities with direct impact on the sales funnel.
Build and maintain distributed systems, integrating internal services and external APIs with reliability and performance.
Serve as the technical reference for the team: make architectural decisions, review PRs, share best practices, and keep code clean and sustainable.
Lead initiatives from scratch with autonomy, prioritizing the highest-impact problems and measuring results clearly.
Maintain high engineering standards: automated tests, observability, documentation, performance, security, and resilience.
Build monitoring and alerts, participate in on-call rotations, and act in incident response with a focus on learning and continuous improvement.

5+ years of experience as a fullstack software engineer with direct impact on product or growth teams.
Proficiency in at least one modern backend language (Go, Node.js, Python, Kotlin, or equivalent).
Strong experience with modern frontend frameworks (React, Vue, Next.js, or similar).
Familiarity with CI/CD, automated testing, microservices architecture, version control, and frequent deployments.
Experience with relational and non-relational databases (PostgreSQL, Redis, MongoDB, etc.).
Direct experience building systems aimed at end users (product, sales, commerce) and the ability to translate business needs into efficient technical solutions.
Practical knowledge of A/B testing, SEO, and data-driven practices.
Strong sense of ownership, clear communication skills, and ability to collaborate in agile, multidisciplinary environments.
Technical English for reading and writing documentation and pull requests.

Life Insurance: To take care of our greatest asset: our Kovers.
Health Insurance: It’s important to take care of your health.
Dental Plan: So you can keep that great smile!
Flash Card: Your meal and/or food allowance on a single card — after all, “you can’t work on an empty stomach!”
Partnership with SESC: Enrollment in the benefit after 90 days of employment.
Transportation Voucher or Fuel Allowance: You choose how you commute.
For parents and children: Daycare assistance, extended maternity leave of 180 days, and extended paternity leave of 20 days.
Wellhub: All Kovers are entitled to exercise with part of the cost subsidized by Kovi.
Kovenção: A company-wide meeting where Kovi leadership shares business status with the entire company.

Senior Software Engineer – Fullstack

Key skills