Senior Software Engineer

Job Title: Senior Software Engineer(Java&SpringBoot)

JobType: Full-Time

Experience Level: Senior\

Job Description:

We are seeking a highly skilled Senior Software Engineer with deep

expertise in Java and SpringBoot to join our engineering team.The

ideal candidate will be responsible for designing,developing,and

maintaining robust and scalable backend systems which focus on

developing or integrating payment solutions,gateway and/or libraries and

have also previous experience working in banks or other fintech

establishments.As a key member of the backend team,you will work

closely with other developers,architects,and stakeholders to

deliver high-quality software solutions that meet the technical and

business requirements.

Key Responsibilities:

Design and Develop: Build and maintain scalable, reliable,and high-performance back end

payment services and APIs using Java and SpringBoot.

Architecture&Design: Collaborate with architects and other engineers to design and

implement payment systems that meet performance, scalability, and reliability requirements.

Code Quality: Write clean, maintainable,and efficient code following be stpracticesin

software development (SOLID principles, design patterns,etc.)in relation to the

establishment Engineering SOP.

Testing&Debugging:Ensure the code is well-tested by writing unit, integration, and

performancetests.Debugandtroubleshootissuesintheproductionenvironment

independently or collaborate with QA or other value memberoftheteam

MicroservicesDevelopment:Designanddevelopmicroservicesthatcanseamlesslyintegrate

with the broader system architecture.

Database Management: Work with relational and No SQL databases,ensuring proper

indexing,query optimization,and data integrity.

API Development: Build RESTful APIs and ensure efficient communication between backend

andfrontendsystemsandhavefullknowlegeofpaymentlibrarydevelopmentthatsupport

core payment services.

Security&Performance implement security best practices(e.g.,encryption&decryption,

authentication,authorization)and performance optimizations for highly available systems.

Collaboration: Work closely with cross-functional teams including frontend engineers,

DevOps, PM and QA to deliver high-quality features and improvements.

Code Reviews: Conduct code reviews, provide constructive feedback,and mentor junior

engineers to ensure a high standard of cod equality.

Continuous Integration & Deployment: Understand working with CI/CD pipelines,

automated build systems,and cloud environments to ensure seamless deployments and

minimal downtime.

TechnicalDocumentation:Writeandmaintaintechnicaldocumentationforsystemdesigns,

API specifications, and development processes.

Required Technical Skills:

Java: Expert proficiency in Java (8 and above) with a solid understanding of object-oriented

programming,concurrency,and multi-threading.

SpringBoot:ExtensiveexperiencebuildingRESTfulservicesandenterpriseapplicationsusing

SpringBoot.

Spring Framework: In-depth knowledge of related technologies such as SpringMVC,Spring

Data,Spring Security,and Spring Cloud, hibernate and/or Mybatis

Databases: Strong experience with both SQL(PostgreSQL,MySQL)and No SQL(MongoDB,

Redis)databases.

MessagingSystems:Experiencewithmessagingandevent-drivenarchitecturesusingtools

like RocketMQ,Kafka,RabbitMQ,orActiveMQ.

APIs&Integrations: Experience building and consuming RESTful, SOAP APIs and working

with API design principles and tools like Swagger or OpenAPI.

Version Control:ProficientwithGitforsourcecodemanagement,branching,andpull

requests.

Containerization: Experience with containerization technologies like Docker and

orchestration tools like Kubernetes.

Cloud Platforms: Experience with cloud environments such as AWS,AliCloud,Google Cloud,

orvAzure.

Testing:vExperience vwithvtest in frameworks like JUnit, Mockito,and integration test

strategies for ensuring therobustness of backend services.

CI/CD:must have devops development mindset such as knowledge about continuous

integration and deployment pipelines and or ideally using Jenkins,CircleCI,or similar tools.

SoftSkills & Communication:

StrongCommunicationSkills:Abilitytoarticulatecomplextechnicalconceptsclearlyand

effectively to both technical and non-technical stakeholders.

Collaboration:Demonstratedabilitytoworkwellinateamenvironmentandcollaborate

across teams.

Problem-Solving:Strong analytical and problem-solving skills,with the ability to debug and

fix complex technical issues quickly.

Mentorship:Experience mentoring junior engineers and participating in knowledge-sharing

activities.

Attention to Detail: Strong focus on quality,maintainability,and performance in all aspects

of software development and good prioritization ability.

Nice to Have:

Experience with GraphQL.

Knowledge of Reactive Programming using Spring Web Flux.

Familiarity with OAuth2 and JWT for authentication and authorization.

Experience with API Gateways and distributed tracing tools.

Understanding of DevOps principles and experience working with infrastructure-as-code

tools such asTerraformorAnsible.

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