Job Summary: Develop and maintain web applications and APIs, contributing to continuous improvements in a dynamic and cooperative environment. Key Highlights: 1. Web application development and maintenance 2. Focus on modern technologies and scalable solutions 3. Collaboration in a dynamic and cooperative environment **Position: Mid-level Programmer – PJ** Location: Cuiabá – MT (on-site) Employment Type: Individual Contractor (PJ) **Working Hours** \- 40 hours per week (Monday to Friday) \- Schedule: 8:00 AM to 12:00 PM and 1:00 PM to 5:00 PM **Compensation** \- R$ 4.200,00 to R$6.000,00 (PJ) **Technologies Used** \- React JS \- Java + Spring Boot \- Python \- PostgreSQL \- AWS **Requirements** \- Strong programming logic and problem-solving ability \- Practical experience in web application development \- Experience with at least one of the following stacks: React, Java (Spring Boot), or Python \- Knowledge of REST API development \- Experience with code versioning (GitHub) \- Knowledge of relational databases (modeling and queries) \- Proficiency in Object-Oriented Programming (OOP) \- Understanding of software architecture and best development practices **Responsibilities** \- Develop, enhance, and maintain APIs and web applications \- Implement new features and drive continuous improvements \- Analyze and propose technical solutions for system requirements \- Participate in technical decision-making with the team \- Ensure application quality, performance, and scalability \- Identify and suggest improvements to existing systems **Preferred Qualifications** \- Knowledge of Clean Code principles \- Familiarity with componentization (UI Components) \- Understanding of SOLID principles \- Experience in system integration \- Experience with cloud environments (AWS) **Selection Process** \- List your technologies and proficiency level \- List your programming languages and proficiency level \- Typing test (Ratatype) – submit screenshot of results **Commute Time** Submit screenshots (Google Maps) showing commute time for: * **Outbound:** from your residence to Optimus Investimentos. * **Return/Post-work destination:** from Optimus Investimentos to your destination after work (e.g., home, university, etc.). **Work Location:** \- Optimus Investimentos Eldorado Hill Office Building – R. I, nº 105, Alvorada neighborhood, Cuiabá – MT, 78048-487 **Project Overview** We are seeking a **Programmer** to join our technology team. The candidate will play a key role in developing and maintaining web applications, supporting the construction and evolution of APIs, and contributing to continuous improvements across our internal systems. We value proactive individuals with rapid learning ability and willingness to collaborate in a **dynamic and cooperative environment**, where idea exchange and best practices are encouraged daily. The role focuses on **modern technologies** (React, Java with Spring Boot, Python, and PostgreSQL), always aiming to deliver scalable, secure, and efficient solutions that support company growth. Job Type: Full-time, Freelance / PJ Contract Duration: 12 months Payment: R$4.200,00 – R$6.000,00 per month Benefits: * Meal allowance * Transportation allowance Experience: * React, Java (Spring Boot), Python or PostgreSQL? (Mandatory) Work Location: On-site