Senior Java Developer

Job Title : Python Developer – API Integration & AWS Deployment

Experience : 5+ Years

Location : Bangalore

Work Mode : Onsite

Job Overview :

We are seeking an experienced Python Developer with strong expertise in API development and AWS cloud deployment.

The ideal candidate will be responsible for building scalable RESTful APIs, automating power system simulations using PSS®E (psspy), and deploying automation workflows securely and efficiently on AWS.

Mandatory Skills : Python, FastAPI/Flask, PSS®E (psspy), RESTful API Development, AWS (EC2, Lambda, S3, EFS, API Gateway), AWS IAM, CloudWatch.

Key Responsibilities :

Python Development & API Integration :

• Design, build, and maintain RESTful APIs using FastAPI or Flask to interface with PSS®E.
• Automate simulations and workflows using the PSS®E Python API (psspy).
• Implement robust bulk case processing, result extraction, and automated reporting systems.

AWS Cloud Deployment :

• Deploy APIs and automation pipelines using AWS services such as EC2, Lambda, S3, EFS, and API Gateway.
• Apply cloud-native best practices to ensure reliability, scalability, and cost efficiency.
• Manage secure access control using AWS IAM, API keys, and implement monitoring using CloudWatch.

Required Skills :

• 5+ Years of professional experience in Python development.
• Hands-on experience with RESTful API development (FastAPI/Flask).
• Solid experience working with PSS®E and its psspy Python API.
• Strong understanding of AWS services, deployment, and best practices.
• Proficiency in automation, scripting, and report generation.
• Knowledge of cloud security and monitoring tools like IAM and CloudWatch.

Good to Have :

• Experience in power system simulation and electrical engineering concepts.
• Familiarity with CI/CD tools for AWS deployments.

Wissen Technology is now hiring for a Java Developer

Location : Bangalore (The candidate must be based in Bangalore, as an in-person interview is a mandatory part of the selection process)

Notice Period: Immediate to Serving Notice Period & Up to 30 Days max

Skills: Hands-on experience in Core Java, Spring Boot, Microservices, Algorithms, Data Structure and SQL

Note: Bachelor's or Master's degree from a top-tier college or university is must.

Key Responsibilities:

• Design, develop, and test low-latency, high-volume client-facing applications.
• Develop and maintain enterprise-scale, n-tier applications for the investment banking/capital markets domain.
• Implement microservices-based solutions using Spring Boot and other modern frameworks.
• Work extensively with Core Java 5.0 and above, Spring Framework, and CXF
• Optimize applications for multi-threading and high-performance server-side development
• Collaborate with cross-functional teams to design and implement scalable, secure, and efficient solutions
• Work with RDBMS (preferably Sybase) to handle large-scale data processing.
• Develop and maintain applications on Unix/Linux environments
• Utilize enterprise application design patterns to build robust and scalable solutions.
• Troubleshoot and resolve complex technical issues while ensuring application stability and performance.

Required Skills & Experience:

• 1 to 6 years of hands-on experience in Java development
• Strong knowledge of microservices architecture and cloud-based deployment.
• Expertise in Spring Framework, Spring Boot, and CXF
• Experience in developing and optimizing applications for high-volume, multi-threaded environments
• Solid understanding of financial domain applications, sales, and trading platforms
• Proficiency in working with relational databases (Sybase preferred)
• Familiarity with Unix/Linux environments and shell scripting.
• Strong analytical, problem-solving, and communication skills.
• Ability to articulate and present design ideas effectively.
• Education: Bachelor's or Master's degree from a top-tier college or university is must.

Responsibilities :

●     Designing and developing robust and scalable server-side applications using Python, Flask, Django, or other relevant frameworks and technologies.

●     Collaborating with other developers, data scientists, and data engineers to design and implement RESTful APIs, web services, and microservices architectures.

●     Writing clean, maintainable, and efficient code, and reviewing the code of other team members to ensure consistency and adherence to best practices.

●     Participating in code reviews, testing, debugging, and troubleshooting to ensure the quality and reliability of applications.

●     Optimising applications for performance, scalability, and security, and monitoring the production environment to ensure uptime and availability.

●     Staying up-to-date with emerging trends and technologies in web development, and evaluating and recommending new tools and frameworks as needed.

●     Mentoring and coaching junior developers to ensure they grow and develop their skills and knowledge in line with the needs of the team and the organisation.

●     Communicating and collaborating effectively with other stakeholders, including product owners, project managers, and other development teams, to ensure projects are delivered on time and to specification.

You are a perfect match, if you have these qualification :

●     Strong experience in Python and server-side development frameworks such as Flask or Django.

●     Experience in building RESTful APIs, web services, and microservices architectures.

●     Experience in using database technologies such as MySQL, PostgreSQL, or MongoDB.

●     Familiarity with cloud-based platforms such as AWS, Azure, or Google Cloud Platform.

●     Knowledge of software development best practices such as Agile methodologies, Test-Driven Development (TDD), and Continuous Integration/Continuous Deployment (CI/CD).

●     Excellent problem-solving and debugging skills, and the ability to work independently as well as part of a team.

Strong communication and collaboration skills, and the ability to work effectively with other stakeholders in a fast-paced environment

Job Description

As part of our role at a leading global insurance company, we are responsible for developing and managing an application to onboard and oversee the company's sales partners, including agents and brokers. This application provides users with a tailored, independent solution, including a required multi-dimensional validity date concept for administering all organizational and contractual sales force data to deliver structured information to many data consumers.

To reinforce our dynamic development team, we are seeking a skilled Backend or Full-stack Developer. In this role, you will collaborate with international cross-functional teams to design, develop, and deploy high-quality software solutions.

Responsibilities

Design, develop, and maintain the application, ensuring high performance and responsiveness.

Write clean, efficient, and reusable code.

Implement new features and functionality based on business requirements.

Participate in system and application architecture discussions.

Create technical designs and specifications for new features or enhancements.

Write and execute unit tests to ensure code quality.

Debug and resolve technical issues and software defects.

Conduct code reviews to ensure adherence to best practices.

Identify and fix vulnerabilities to ensure application integrity.

Work with frontend developers to ensure seamless integration of user-facing elements.

Collaborate with DevOps teams for deployment and scaling.

Design and implement workflow automation using Camunda BPM, integrating it with backend services and ensuring efficient process execution.

Optimize and maintain business process models and workflow orchestration using Camunda.

Troubleshoot and enhance Camunda BPMN workflows, DMN decision tables, and process automation configurations.

Requirements

 Bachelor's degree in computer science, Information Technology, or a related field.

Proven experience as a skilled Backend or Full-stack Developer. Experience in the insurance domain is appreciated.

Strong experience with Spring Boot 3, Java 17 or newer, and Maven.

Experience with PostgreSQL, Jenkins, Sonar, Dynatrace, Kubernetes, Mockito, IntelliJ IDEA, and GitHub repository.

Hands-on experience with Camunda BPM (v7 or v8), including BPMN workflows, DMN decision tables, and REST API integration.

Experience with Angular TS and/or AWS, Kafka is a plus.

Excellent problem-solving and debugging skills.

Strong communication and collaboration abilities to work effectively in a team environment.

• Candidates with good experience with SDLC
• Minimum 3+ years of hard core coding experience is mandatory
• Excellent hands on coding in Java, J2EE, Spring, Struts

We focus on client adoption of disruptive technologies, technology architecture and providing specialized skills related to integration, custom software engineering, testing, application modernization, agile and more. We help our clients with the most complex projects including working in open web platforms, DevOps platforms as well as intelligent Computing and Architecture enhancement.

We are looking for hands on, smart thinking Applications developer to join our fast-growing team of talented professionals. You will have the opportunity to work on large enterprise solutions and deliver solutions that deliver business performance for our customers.

WORK YOU’LL DO

• Design and develop microservices/APIs using either Java/Spring boot, ISTIO, Kubernetes, Docker, CI / CD Pipelines
• You would scale micro services using Kafka or similar messaging systems.
• Collaborate with clients, architects, and application architectures to understand the operational objectives and purpose of the future system integration.
• Understand the points of integration between the different systems and highlight the potential risks associated with the delivery of solutions
• Collaborate with Functional Designers and Developers in order to find best solutions
• Produce detailed functional and technical specifications.
• Assist in producing solutions with threat assessments and associated security awareness.
•  

WHAT WE ARE LOOKING FOR

• 5- 8 years of hands-on experience designing and developing microservices using either Java/Spring Boot
• 3-5 years of experience with system integration
• Minimum of 3 years of relevant experience with API concepts and technologies such as REST, JSON, XML, SOAP, YAML, GraphQL, and Swagger
• Experience developing within agile methodology using CI/CD pipeline
• Experienced in 3-tier, n-tier, cloud computing, microservices architectures and SOA.
• Good knowledge of integration architectures
• Experience supporting and/or implementing complex integration projects
• Excellent client management skills
• Experience with Data modelling would be an asset

QUALIFICATIONS

• Experience of working in an Agile Environment
• Ability to drive design from Stories and Requirements
• Adept at UML, Design Patterns, Reusable Services Development,
• Knowledge on Scaling Microservices

Applicant must have a min of 4 years of experience as a Java Developer and a Min of 2 years on Spring boot, Augular knowledge must, having an experience in Angular would be an added advantage.

Detailed JD

Resources with below skill sets :

- Angular JS

- Spring MVC

- Spring Boot

- Hibernate

- PostgreSQL

- Drools

- SVN

- Jenkins

- SonarQube

- Foresighted & good judgement in problem solving.

- Capable of paying attention to detail.

- Good analytical and logical thinking.

- Prioritizing and organizing

- Team Player with positive attitude.

- Process knowledge/Technical expertise

- Good Written and Verbal communication Skills

- Analyse & understanding of the SRS.

- Report queries on the SRS/Requirement.

- Prepare low level design document

- Prepare Unit test cases

Required Technical Skills: 

• Java (highly capable)
• SQL (highly capable)
• Strong knowledge of software best practices, build processes, IDEs, database tools (e.g. SQL Developer, SQL Management Studio)
• Strong knowledge of source code control systems (GIT)
• Confident with Windows, Linux, Unix operating systems including command line
• Working knowledge of JIRA

Beneficial Technical Skills: 

• .Net
• C 
• Javascript 
• Experience in test management and test execution
• Experience of Agile development methods

Additional Skills and Behaviour Required 

• Experience of full software development lifecycle
• Considers competing solutions and evaluates options to create the best outcome in all aspects of the role.
• Willingness to takes ownership of whole project and engineers assigned.
• Confident to make suggestions and recommendations for improvements.
• Excellent written and verbal communication skills and ability to build good rapport
• Fluency in English, both written and oral
• Collaborates with others to achieve objectives and ensure information flow
• Seeks assistance and feedback as appropriate 

Education 

• Bachelor's degree (or equivalent) in Computer Science or Engineering or other relevant discipline (MCA, MSc in Computer Science etc.)