Job Description:
We are seeking a highly skilled Backend Developer with a strong foundation in Java and Spring frameworks to join our dynamic team. The ideal candidate should possess expertise in designing, developing, and maintaining robust backend systems and services. Candidates with experience in BPMN and DMN engines are highly preferred, although not mandatory.
Key Responsibilities:
- Develop, test, and maintain backend applications using Java JDK and Spring frameworks.
- Implement and optimize backend services, including security, database management, and web services.
- Work with technologies such as Spring Security, Spring Data JPA, Hibernate, Kafka, Redis, and Zuul Gateway.
- Manage databases with PostgreSQL or similar database management systems.
- Collaborate with the team to integrate BPMN engines (Camunda, Zeebe) and DMN engines (Drools KIE) when needed.
- Develop and maintain secure authentication protocols using Keycloak (OAUTH2, JWT, SAML, LDAP).
- Write efficient unit tests using tools such as Assertj and JUnit.
- Utilize build and version control tools like Maven and Git for efficient project management.
Required Skills:
- Proficiency in Java JDK and Spring frameworks (Security, Data JPA, Web, Hibernate, Kafka, Redis).
- Strong experience in developing APIs and backend systems.
- Knowledge of Zuul Gateway and database management with PostgreSQL.
- Familiarity with BPMN and DMN engines (Camunda, Zeebe, Drools KIE) is a plus.
- Hands-on experience with unit testing frameworks and tools.
- Experience with authentication mechanisms (OAUTH2, JWT, SAML, LDAP).
- Good understanding of version control systems and dependency management tools.
Preferred Skills (Nice to Have):
- Experience with BPMN and DMN engines, such as Camunda or Drools.
Soft Skills:
- Strong problem-solving abilities.
- Excellent communication and teamwork skills.
- Ability to adapt to new technologies and methodologies quickly.
Top Skills
What We Do
A digital transformation company, driven to solve some of the most complex problems in the world today through technology. Our core service portfolio includes staff augmentation, software development and cloud services with over 300+ projects delivered to date. Established in 2014, with a continuously growing team of 250+ experts, operating across 3 regions with Americas, Middle East, and Southeast Asia, CodeNinja is one of the fastest growing technology companies recognized by Forbes Technology Council. With value addition being a core focus for the company, CodeNinja ranks as one of the top and best reviewed software development and services company. Now offering enterprise cloud solutions to some of the leading technology companies in the world, the company has secured funding of $1.6M and is poised to invest in redefining workplace dynamics through use of advanced AI. CodeNinja has earned the trust of more than 240 clients spread across 15 different countries and 9 different industries. The company is also one of the top-rated outsourcing services provider in Pakistan, forming dedicated technology teams for some of the world's leading organizations like Microsoft, Lifeforce (Tony Robbins) and OTL alongside unicorns such as 24Seven, ABHI, and Graana. In addition, to ensure quality and commitment to client data security, the company is now ISO 270001 certified. Services: · Offshore Engineering Teams · Custom Software Development · Dedicated Development Center · Application Modernizations · Cloud Services and Solutions · Modern Workplace Solutions · Digital Transformation Strategy · AI Consulting · AR/VR and Digital Twins · eCommerce Solutions Awards and Achievements: Top 1000 Companies Clutch Global 2023 Top Company in .Net Developers 2023 Clutch Global Fall 2023 Certifications & Partnerships: Adobe Commerce Cloud Solution Partner Microsoft Solution partner for business applications. Microsoft Solution Partner for Azure Data and AI.
 (1).png)
