Senior/ Middle Level Backend Developer

2 semanas atrás

Rio Grande do Sul, Brasil Mercaux Tempo inteiro

**Company & Product**

Mercaux’s In-Store Clienteling and CX Unified Commerce Platform empowers retailers to deliver exceptional shopping experiences, both in-store and remotely, to boost sales, loyalty, and profitability

A single app for Store Associates offers assisted selling, endless aisle, clienteling & appointments management, through to in-store interest capture, remote selling, mPOS, Intelligent Task Management, Store Associate performance Dashboards, fulfillment & returns. Self-service customer solutions include progressive web apps, digital fitting rooms, self-checkout kiosks, and appointment bookings.

The MACH-certified modular platform allows for flexible transformation at the retailer’s pace - start with assisted selling or clienteling, or deploy digital fitting rooms.
Additional solutions, such as self-checkout and remote selling, can be easily added at a later date.

Mercaux has an international team spread across London and Barcelona offices with some employees working remotely.

**Who we are looking for and why**:
We are looking for a Senior BackEnd developer (in Barcelona, Serbia, or remote) to optimize our AWS services, boost scalability, and build a strong base for advanced analytics and machine learning, with a possible move to Azure.

At Mercaux, our backend is a collection of cloud-based RESTful API services built on the reliable Java (and a tiny bit of Kotlin) + Spring + Hibernate stack. One standout feature for us is our multi-tenancy approach, where all Mercaux clients coexist within a single infrastructure.

From a business perspective, these services handle user authentication, rights management, data storage and retrieval, message forwarding through the Twilio API, integration with OMS, and much more. We're seeking a skilled backend developer who can help scale out our platform's core (e.g., preparing for potential sharding) and drive the development of new business scenarios.

**What you will need to do**:

- Developing and maintaining a suite of AWS-based services (with potential expansion to Azure in the future)
- Enhancing scalability and identifying performance bottlenecks
- Building the foundation for advanced analytics using statistical and machine learning techniques
- Collaborating closely on optimising memory and CPU utilisation, as well as fine-tuning complex SQL queries

**How to know if you’re the right fit**:

- You've worked with similar infrastructure: Linux, PostgreSQL, AWS (SQS, SNS, S3, CloudFront)
- You possess solid Java skills: Hibernate, Spring, Spring Boot
- You're well-versed in SQL: optimising complex queries, memory and CPU usage, etc.
- You're experienced with development tools: CI/CD deployment (Teamcity), bash, gitflow
- You have familiarity or hands-on experience with: AWS ECS, EC2, ASG, RDS, Lambda, Docker, Load testing (Jmeter)
- You can effectively communicate in English for work purposes, especially in written form

**What we offer**:

- International, diverse, and dynamic team
- Opportunity to create something new, and to transform the retail industry
- Learning & Development Allowance (upon probation)
- Health Insurance (upon probation)
- Opportunity to participate in the Options scheme (upon probation)
- Paid time-off + applicable local public holidays
- Trips to Mercaux offices
- Relocation allowance + legal support (if relevant; upon probation)
- Hybrid workplace (with the office in Barcelona or Serbia)

  • Senior Backend Developer – Google Ads API

    Há 2 dias

    Sapucaia do Sul, Brasil adMixt Tempo inteiro

    Job Title: Senior Backend Developer – Google Ads API Company: adMixt (eCommerce Performance Marketing Agency) Location: Remote Description: adMixt is hiring a Senior Backend Developer with deep, hands-on experience integrating Google Ads API . This is a senior-level role for someone who has spent years working directly with Google Ads and eCommerce systems...

  • Middle Java Backend Developer

    1 semana atrás

    Rio de Janeiro, Brasil N-iX Tempo inteiro

    **About Us**: We are seeking a **Middle or Strong Middle Java Backend Developer** to support the growth of an existing platform for a US-based B2B company. **Key Responsibilities**: - Develop, implement, and maintain backend services using Java and Spring framework. - Design and optimize RESTful APIs to support scalable, secure, and efficient systems. -...

  • Senior Java Developer

    1 semana atrás

    Campina Grande do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer – Qubika We are looking for a Senior Java Developer to join our team. At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From You Minimum 5 years of experience in Java Backend Development Strong understanding of Agile methodologies and user story...

  • Senior Java Developer

    1 semana atrás

    Campina Grande Do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer – QubikaWe are looking for a Senior Java Developer to join our team. At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From YouMinimum 5 years of experience in Java Backend Development Strong understanding of Agile methodologies and user story...

  • Senior Java Developer

    Há 6 dias

    Rio do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From You Minimum 5 Years Of Experience in Java Backend Development. Strong understanding of Agile methodologies and user story creation. Hands‑on experience with Kafka, unit testing, Cucumber, and...

  • Senior Java Developer

    1 semana atrás

    Santa Cruz do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer at Qubika We are looking for a Senior Java Developer to join our team! What We Expect From You Minimum 5 Years of experience in Java backend development Strong understanding of Agile methodologies and user story creation Hands‑on experience with Kafka, unit testing, Cucumber, and GitHub pipelines Proficiency in relational databases,...

  • Senior Java Developer

    1 semana atrás

    Eldorado do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer We are looking for a Senior Java Developer to join our team at Qubika . This role focuses on designing, developing, and deploying custom software solutions that have a real impact through technology. What We Expect From You Minimum 5 years of experience in Java backend development. Strong understanding of Agile methodologies and user...

  • Senior Java Developer

    1 semana atrás

    Jaraguá do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer at Qubika We are looking for a Senior Java Developer to join our team! At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From You Minimum 5 Years Of Experience in Java Backend Development. Strong understanding of Agile methodologies and user story...

  • Senior Java Developer

    1 semana atrás

    São Caetano do Sul, Brasil Qubika Tempo inteiro

    Senior Java Developer – Qubika We are looking for a Senior Java Developer to join our team! At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From You Minimum 5 Years Of Experience in Java Backend Development. Strong understanding of Agile methodologies and user story...

  • Senior Java Developer

    1 semana atrás

    Caxias do Sul, Brasil Qubika Tempo inteiro

    Join to apply for the Senior Java Developer role at Qubika . We are looking for a Senior Java Developer to join our team! At Qubika, we design, develop, and deploy custom software solutions for organizations making an impact through technology. What We Expect From You Minimum 5 Years Of Experience in Java Backend Development. Strong understanding of Agile...