Software Engineer – Mid-Level

Job not on LinkedIn

🔥 2 minutes ago

🇧🇷 Brazil – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

🗣️🇧🇷🇵🇹 Portuguese Required

Where this job comes from

Posted on Koin's careers page, not through a job board

First seen by Remote Rocketship 2 minutes ago

Logo of Koin

Koin

201 - 500 employees

Founded 2014

💳 Fintech

🔐 Security

☁️ SaaS

Fintech • Security • SaaS

Koin is a Brazilian payments and fraud-prevention company that provides AI-powered anti-fraud solutions and payment products for merchants, including Pix parcelado (BNPL) and a payment gateway. It helps e-commerce businesses increase conversion and reduce fraud losses by combining machine learning, expert rules, real-time detection and recovery strategies, and operates as a licensed payment institution/correspondent under Brazilian regulations.

📋 Description

• Develop and enhance microservices, independently handling complex tasks across both technical and business domains. • Resolve production issues independently, seeking support only in urgent or highly complex cases. • Create metrics, alerts, and other tools to ensure the reliability and smooth operation of services. • Work closely with the business team, challenging priorities and proposing alternatives based on domain and application knowledge. • Identify dependencies and impacts on other teams and coordinate with them to build solutions collaboratively. • Help identify and build the technical backlog. • Serve as a reference for code quality, closely monitoring the impact of AI use on project maintenance. • During code reviews, focus on tests, scenarios, and coverage while providing constructive feedback to colleagues. • Mentor less experienced team members on best practices and on which sensitive data or proprietary code must not be shared with AI tools.

🎯 Requirements

• At least 4 years of experience in software development. • Strong experience in backend development with Java and Spring. • Experience designing APIs and developing solutions that impact multiple teams. • Experience supporting production systems and using monitoring tools, including log analysis and error correlation—Datadog, New Relic, or similar tools. • Track record of delivering code with strong performance, scalability, and few production failures. • Ability to independently take ownership of loosely defined tasks, plan your own work, and anticipate risks. • Clear communication in technical discussions and with business teams, with a constructive approach to differing opinions. • Daily use of Generative AI in development, applying prompt engineering best practices and critically reviewing generated code.

🏖️ Benefits

• Life insurance • Health and dental insurance • Transportation allowance • Meal and food allowances (VR + VA) • Childcare assistance • Extended parental leave • TotalPass or Wellhub • Work From Anywhere (WFA) • Golden Farma • Home office allowance

Apply Now

📊 Check your resume score for this job

Improve your chances of getting an interview by checking your resume score before you apply.

Similar Jobs

🔥 5 minutes ago

Sinqia

1001 - 5000

💼 Consulting

💳 Fintech

🏦 Banking

Tech Lead .NET liderando a modernização e migração de sistemas legados na Evertec. Atuação hands-on com arquitetura, microsserviços, cloud e engenharia de software para o setor financeiro.

🗣️🇧🇷🇵🇹 Portuguese Required

🔥 1 hour ago

RD Station

1001 - 5000

📣 Marketing

💼 Consulting

📦 Logistics

Engenheiro Full Stack desenvolvendo backends Python, APIs e arquiteturas para agentes de IA da RD Station. Colaboração transversal na integração e evolução de produtos.

🗣️🇧🇷🇵🇹 Portuguese Required

🔥 4 hours ago

+Humanos

1 - 10

📣 Marketing

📦 Logistics

👥 HR Tech

Desenvolvedor Pleno implementando recursos e corrigindo erros em software de gestão para móveis planejados. Trabalho remoto em empresa líder no mercado brasileiro.

🗣️🇧🇷🇵🇹 Portuguese Required

🔥 4 hours ago

Comercio de Medicamentos Brair Ltda.

1 - 10

🏥 Healthcare

📦 Logistics

🍽️ Food & Beverage

Arquiteto(a) sênior liderando modernização, escalabilidade e resiliência de sistemas da maior rede farmacêutica do Sul do Brasil. Desenvolvendo POCs, padrões arquiteturais e integração entre sistemas.

🗣️🇧🇷🇵🇹 Portuguese Required

🔥 16 hours ago

Sicredi

10,000+ employees

🛡️ Insurance

📦 Logistics

💼 Consulting

Engenheira de Software PL desenvolvendo serviços backend de risco em tempo real para a cooperativa financeira Sicredi. Construção de APIs resilientes, microsserviços e integrações antifraude.

🗣️🇧🇷🇵🇹 Portuguese Required

Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com
Follow Remote Rocketship on LinkedInFollow Remote Rocketship on InstagramFollow Remote Rocketship on FacebookFollow Remote Rocketship on TikTok