Senior Software Engineer

Job not on LinkedIn

🔥 3 minutes ago

🇧🇷 Brazil – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Koin

WebsiteLinkedInAll Job Openings

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

• Help shape the engineering vision for backend microservices and serve as the team’s primary technical reference. • Help plan changes, identify technical debt, propose improvements, and define the technical backlog. • Independently lead initiatives that involve multiple teams. • Partner with team leadership and temporarily step in for them when necessary. • Evaluate and help define the adoption strategy for new technologies and GenAI tools, ensuring they strengthen the team without making systems more fragile. • Develop a deep understanding of the team’s applications and be able to explain and challenge why they were designed and implemented in a particular way. • Develop tools and identify best practices that improve the team’s workflow and productivity. • Share best practices and create learning and knowledge-sharing opportunities within the team. • Help improve colleagues’ ideas, while identifying problems and proposing solutions. • Communicate technical decisions clearly and with a solid rationale, encouraging this practice across the team. • Take on essential tasks even when they are not particularly appealing, setting an example for less experienced team members. • Look beyond your own team and propose improvements and solutions for other areas of the company as well.

🎯 Requirements

• At least 5 years of software development experience. • Strong experience with backend development using Java and Spring. • Strong technical foundation in algorithms, programming languages (Java/Spring), the JVM, networking, databases, and distributed systems. • Expertise in microservices architecture, with the ability to understand, challenge, and explain why systems are designed in a particular way. • Experience designing robust, observable, and scalable solutions, and orchestrating complex solutions across multiple components and teams. • Daily use of GenAI, with experience evaluating the adoption of AI tools without making systems more fragile. • Experience leading production support, incident response, and post-incident reviews. • Experience identifying technical debt, proposing improvements, and helping define the technical backlog. • Clear communication, always grounded in a solid rationale for each decision, and openness to having your own ideas reviewed and challenged.

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