Sr. Java Developer

Promtior; Chaco; On-site; ARS 60,635,000 - 106,112,000; Full time

Benefits offered by this job

20 paid days off per year

Flex Days: monthly team activities

Internal clubs (soccer, padel, running

Job summary

Promtior is seeking a Sr. Java Developer to join our Engineering team in Argentina. You will build and maintain backend services, APIs, and microservices using Spring and Spring Boot, with a focus on performance and reliability.

You will collaborate with product and technology teams, participate in code reviews, and contribute across the full development lifecycle from design to production deployment. Strong English and curiosity are required. Docker experience and JVM tuning are valued.

Qualifications

• Experience developing APIs or backend services.
• Strong knowledge of JVM memory and performance.
• Expertise in microservices and distributed systems.
• Familiarity with Docker containers.
• Understanding of patterns such as Circuit Breaker, idempotency, or SAGA.
• Proactive learner with technical curiosity.
• Advanced English proficiency.

Responsibilities

• Develop and maintain backend services in Java.
• Build APIs and backend components with Spring / Spring Boot.
• Collaborate with product and technology teams; participate in code reviews and testing.
• Support the full development lifecycle from design to production deployment.
• Focus on quality, performance, and maintainability.

Skills

Backend APIs

Java / JVM

Microservices

Distributed systems

Docker

Continuous learning

Advanced English

Tools

Spring

Spring Boot

JPA / Hibernate

Job description

Promtior is at the forefront of the Agentic AI revolution, delivering cutting-edge solutions that transform businesses across industries — bridging technology and people to turn AI into a real competitive advantage. Since 2023, we've helped organizations boost operational efficiency through tailored Agentic AI solutions, from discovery and development to full implementation, across three core lines: AI Product Delivery (predictive analytics, intelligent automation, AI-driven chatbots, image processing), AI Department as a Service (LATAM-based teams that integrate directly with our clients' teams), and AI Adoption Consulting (helping companies find and act on AI opportunities across their business).

We're a team held together by genuine relationships, constant exchange, and shared learning. We believe innovation happens when people feel included and collaborate with purpose, and we aim for professional growth to go hand in hand with personal well-being.

About the Role

We're looking for a Sr. Java Developer to join our Engineering team and support the growth of our technology solutions.

Key Responsibilities

You will develop and maintain backend services in Java for production applications, building APIs and backend components using Spring and Spring Boot. You will take part in the design and implementation of features with a focus on quality, performance, and maintainability, working with relational databases and ORMs (JPA/Hibernate). You will collaborate with other developers and with product and technology profiles, participate in code reviews, testing, and continuous improvements, and support the full development cycle, from design through to production deployment.

Required Experience

• Prior experience developing APIs or backend services.
• Advanced knowledge of performance, JVM, and memory usage.
• Expertise in microservices and distributed systems.
• Conceptual knowledge of patterns such as Circuit Breaker, idempotency, or SAGA.
• Experience working with containers (Docker).
• Continuous learning attitude and technical curiosity.
• Advanced English Level.
• 20 paid days off per year.
• Flex Days: monthly team activities.
• Internal clubs (soccer, padel, running, cinema).

Location