At **Nexion Solutions**, we lead **digital transformation** projects for companies in the **financial and corporate sectors**. We are looking for a **Tech Lead** with solid experience in **Java and microservices architecture**, capable of guiding development teams, defining technical standards, and actively participating in strategic technology decisions. **Responsibilities** * Lead and provide technical guidance to development teams. * Define architecture and best practices for **Java (backend)** and microservices projects. * Participate in **sprint planning**, estimations, and task assignment. * Review code and ensure **technical quality and performance** of deliverables. * Collaborate with **Product Owners, QA, and UX** to achieve product goals. * Evaluate and propose **new technologies or process improvements**. * Mentor **semi-senior and junior profiles**, fostering their professional development. **Requirements** * +5 years of software development experience. * +2 years leading technical teams or serving as **Tech Lead / Technical Leader**. * Solid knowledge of **Java, React, Microservices, and REST APIs**. * Experience with **agile methodologies** (Scrum / Kanban). * Excellent **communication, leadership, and problem-solving skills**. **Desirable** * Prior experience in the **financial sector** or high-criticality projects. * Technical or management certifications (**Scrum Master, AWS Solution Architect**, etc.). * Intermediate or advanced English. **Benefits** * **Hybrid modality:** 4 days remote \+ 1 day onsite at **Parque Patricios, CABA**. * Participation in **strategic and high-impact projects**. * **Career development plan, training, and continuous mentoring.** * Excellent work environment and collaborative professional team. **Position details** * **Position:** Tech Lead (Java / React / Microservices) * **Location:** CABA – Technology Hub, Parque Patricios * **Modality:** Full-time – hybrid 4x1 * **Estimated start date:** February / 2026 Job type: Full-time, Permanent Salary: $4\.000\.000,00 \- $4\.500\.000,00 per month Application question(s): * How many years of total software development experience do you have? * How many years of experience do you have leading technical teams or working as a Tech Lead / Technical Leader? * Do you have experience designing or working with microservices architectures and REST APIs? (Yes/No – brief description) * Have you worked with agile methodologies such as Scrum or Kanban? (Yes/No – in what role?) * This position requires a hybrid modality (4 days remote \+ 1 day onsite at Parque Patricios, CABA). Are you agreeable to this arrangement? * Are you agreeable to the proposed salary range, or do you have another expectation? * Please indicate your level of expertise in Java and Microservices (Basic / Intermediate / Advanced) and briefly describe your most relevant projects. Workplace: Hybrid in Parque Patricios, Buenos Aires