Senior Java Developer (Real Estate)

ABOUT THE PROJECT

Within this project, you’ll be a member of one of the globally distributed teams and contribute to the development of an IoT platform that aims to deliver a cutting-edge AWS-based smart home technology solution tailored specifically for multifamily residential communities. The system is designed around a patented LoRaWAN thermostat, which includes embedded smart hub technology and integrates seamlessly with top-tier smart door locks and devices. On the Klika Tech side, we are responsible for the system’s end-to-end behavior, including front-end, back-end, and mobile applications.

We hire in Kraków, Wroclaw, and Warsaw only. You can choose the type of work: hybrid/remote/office.

PROJECT’S GLOBAL IMPACT

Our Smart Home technology solutions have positively impacted the following areas:

• Environmental Sustainability: By incorporating energy-efficient technologies and optimizing energy and water usage, we contribute to reducing carbon footprint and promoting environmental sustainability.
• Safety and Accessibility: Features like smart locks, security cameras, and smoke detectors connected to centralized monitoring systems enhance the safety and security of residents, helping to prevent accidents and unauthorized access. Many smart locks allow doors to be unlocked without the use of physical keys, which makes it more convenient to access apartments and avoid losing keys.
• Quality of Life and Inclusivity: Smart apartment solutions can be designed with accessibility in mind, ensuring that features are user-friendly and accommodating for residents with diverse needs, particularly for individuals with disabilities or mobility issues.
• Smart Cities Initiatives: By developing solutions that align with smart city initiatives, we contribute to global urban sustainability goals. Smart apartment technologies can integrate with city-wide systems for energy and resource management, waste reduction, and transportation, supporting broader efforts to create more sustainable and livable urban environments.

YOUR ROLE

• Design and evolve the overall architecture of the existing solution;
• Develop, maintain, and improve features for an existing solution;
• Build mobile APIs;
• Investigate, debug, and resolve software defects;
• Follow clean code principles to write concise code;
• Conduct code reviews to ensure that the code is of high quality;
• Design, develop, and execute unit and integration tests;
• Write and maintain technical documentation;
• Cooperate with the development team and client representatives;
• Convert business requirements into technical tasks;
• Break down and estimate functionality;
• Proactively support other team members;
• Taking part in Agile ceremonies (dailies, planning etc).

REQUIREMENTS

• 5+ years of experience working with Java 17/21;
• Proficient at Spring Boot 2.7.x/3.2.x (MVC, Data, Security, Cloud Sleuth);
• Experience with relational databases (preferably PostgreSQL);
• Experience with logging and monitoring techniques (OpenSearch, Grafana);
• Proficient at building tools (Maven, Gradle);
• Knowledge of OOP and FP paradigms;
• Proficient at design patterns;
• Knowledge of architectural patterns;
• Proficient at commonly used data structures and algorithms;
• Knowledge of commonly used API documentation tools;
• Knowledge of Git branching models and strategies;
• Proficient at authentication and authorization methods;
• Excellent communication and organizational skills;
• Result-driven personality;
• Excellent team player;
• B2+ level of English.

NICE TO HAVE

• 2+ years of experience working with live production systems;
• A bachelor’s degree in computer science, maths, physics, or similar field;
• Experience with AWS services: SNS, SQS, RDS, IoT, EC2/ECS/EKS, Lambda, Kinesis;
• Experience with Kafka/ActiveMQ/RabbitMQ/JMS;
• Experience with Microservices, Docker, Kubernetes;
• Experience with JUnit, Mockito, Testcontainers, Spring RestTemplate;
• Experience with Lombok, MapStruct;
• Experience with IoT systems and MQTT.

WE OFFER

• Flexible work schedule;
• Private healthcare insurance - LuxMed (extended gold package for parents & kids);
• Multisport card;
• Workation;
• Financial bonuses for significant life events (wedding, birth of a child);
• Compensation of professional training: courses, seminars, trainings (it is decided for each person individually if the whole thing or a part of it will be covered);
• Author's right (for those who write the code).

At Klika Tech you'll be part of a culture built on respect and collaboration - one that recognizes the unique talents and strengths of everyone on the team. We're proud of the differences that make us all unique and we support unity, acceptance and equal rights for all. Diversity and inclusion among our employees are critical to our success as a global company. Klika Tech is proud to be an equal opportunity employer.