Senior Java Developer

Posted 114ds ago

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Job Description

Senior Java Developer designing and implementing scalable software architectures at GR8 Tech. Collaborating with cross-functional teams and mentoring junior engineers while optimizing software performance.

Responsibilities:

Designing and implementing scalable and efficient software architectures;
Writing, testing, and debugging complex code for new and existing software applications;
Providing guidance and mentorship to junior engineers and team members;
Conducting thorough code reviews to ensure code quality, security, and best practices;
Creating and maintaining comprehensive technical documentation for software development and system design;
Leading and managing software development projects, ensuring timely delivery and quality(shared responsibility with Delivery Manager);
Working closely with cross-functional teams, including product management, design, and operations, to align development efforts with business goals;
Researching and implementing new technologies and methodologies to improve software performance and development processes;
Identifying and resolving complex software issues and technical challenges;
Developing and enforcing testing protocols to ensure software reliability and performance;
Driving continuous improvement in software development practices and processes;
Communicating effectively with stakeholders, including presenting technical concepts and project updates;
Delivering code to production in timely manner according to business expectations.

Requirements:

Advanced knowledge of Java Programming
Proficiency in core Java concepts such as OOP (Object-Oriented Programming), multithreading, collections, exception handling, and memory management;
In-depth understanding of Java 8+ features, including Streams API, lambda expressions, Optional, and the new Date and Time API;
Mastery of Java concurrency and synchronization, thread pooling, and concurrent data structures;
Experience with JVM internals, including garbage collection, performance tuning, and profiling.
Extensive experience with Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security);
Proficiency in Hibernate or JPA for ORM (Object-Relational Mapping) and data access;
Familiarity with other Java-based frameworks like Apache Camel, Vert.x, or Micronaut;
Knowledge of build tools like Maven and Gradle for project management and dependency management.
Proficiency in building RESTful APIs and web services using frameworks like Spring Boot or JAX-RS;
Understanding of web technologies such as HTML, CSS, JavaScript, and front-end frameworks (e.g., Angular, React, or Vue.js);
Experience with asynchronous programming and handling real-time data using WebSockets.
Expertise in unit testing with JUnit, TestNG, and integration testing frameworks;
Knowledge of mocking frameworks such as Mockito or PowerMock;
Familiarity with behavior-driven development (BDD) tools like Cucumber or JBehave;
Experience with performance testing tools like JMeter or Gatling.
Advanced skills in SQL and experience with relational databases (e.g., PostgreSQL, MySQL, Oracle);
Proficiency in working with NoSQL databases (e.g., MongoDB, Cassandra, Redis);
Experience with database migration tools like Flyway or Liquibase.
Experience with CI/CD tools specific to Java projects, such as Jenkins, GitLab CI, or Travis CI;
Proficiency in using Docker for containerization and Kubernetes for orchestration of Java applications;
Knowledge of infrastructure as code (IaC) tools like Terraform or Ansible for provisioning and managing infrastructure.
Skills in profiling and monitoring Java applications using tools like VisualVM, JProfiler, or YourKit;
Experience in optimizing application performance, including memory management, CPU usage, and response time;
Understanding of load balancing, caching strategies (e.g., EHCache, Hazelcast), and distributed systems.
Knowledge of secure coding practices and understanding of common security vulnerabilities (e.g., OWASP Top Ten);
Experience with authentication and authorization mechanisms, including OAuth2, JWT, and SAML;
Proficiency in implementing security features within the Spring Security framework.
Understanding of network programming using Java NIO and async I/O;
Experience with messaging systems like Apache Kafka, RabbitMQ, or ActiveMQ.
Familiarity with version control systems like Git and collaboration platforms like GitHub or Bitbucket;
Knowledge of code quality and static analysis tools such as SonarQube, PMD, or Checkstyle;
Experience with logging frameworks like SLF4J, Logback, or Log4j.

Benefits:

An annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it:• Sports – gym, yoga, or any activity to keep you active;• Medical – insurance and wellness services;• Mental health– therapy or coaching support;• Home office – ergonomic furniture, gadgets, and tools;• Languages – courses to improve or learn new skills.
Parental support with paid maternity/paternity leave and monthly childcare allowance;
20+ vacation days, unlimited sick leave, and emergency time off;
Remote-first setup with full tech support and coworking compensation;
Regular team events – online, offline, and offsite;
Learning culture with internal courses, career development programs, and real growth opportunities.

Senior Java Developer

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GR8 Tech

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