3 RoR developers

Job Role: Sr. Full Stack Developer

Experience- Min 6 Years

Location-Bangalore

Company Profile- https://www.wissen.com/

Domain 

Fintech, Banking, Capital Markets, Investment Banking 

Job Summary 

We are looking for a highly experienced Senior Full Stack Engineer with strong hands-on expertise in Java, Spring Boot, AWS,React, and DynamoDB. The ideal candidate will have a strong background in building secure, scalable, high-performance applications for financial services, with experience in regulated environments such as banking, capital markets, or investment banking. 

Key Responsibilities 

• Design, develop, and maintain scalable backend services using Java and Spring Boot. 
• Build responsive and reusable user interfaces using React. 
• Design and optimize data models and access patterns in DynamoDB. 
• Develop RESTful APIs and integrate them with front-end and downstream systems. 
• Work on microservices-based architecture and cloud-native application design. 
• Collaborate with product managers, business analysts, architects, QA, and DevOps teams to deliver business-critical solutions. 
• Ensure application security, performance, reliability, and maintainability. 
• Participate in code reviews, architecture reviews, and design discussions. 
• Troubleshoot production issues and support enhancements in live environments. 
• Follow SDLC, Agile, and DevOps best practices in a fast-paced financial services environment.
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Required Skills 

• 8+ years of experience in software development. 
• Hands-on experience working on React, AWS cloud environment and DynamoDB.  
• Proficiency in Java, J2EE, Spring, Hibernate, REST API, Microservices.  
• Experience in developing applications using J2EE Design Patterns and AWS services. 
• Strong problem-solving skills and attention to detail. 
• Excellent communication and teamwork skills. 
• 
  
• Qualifications 
• Bachelor’s or Master’s degree in Computer Science, IT, or a related discipline. 
• Proven experience delivering enterprise-grade applications in regulated financial environments. 

About the Role

We are looking for an experienced Senior Backend Developer to design and build scalable, secure, and high-performance backend systems. The ideal candidate will have deep expertise in Python/Django, microservices architecture, and cloud technologies, along with strong problem-solving skills and leadership capabilities.

Key Responsibilities

•Design and develop backend services using Django and Python.

•Architect and implement microservices-based solutions for scalability and maintainability.

•Work with PostgreSQL and Redis for efficient data storage and caching.

•Build and maintain RESTful APIs and ensure robust API design principles.

•Implement system design best practices for high availability and fault tolerance.

•Containerize applications using Docker and manage deployments with Kubernetes.

•Integrate with cloud platforms (AWS/Azure) for hosting and infrastructure management.

•Apply security best practices to protect data and application integrity.

•Collaborate with frontend, QA, and DevOps teams for seamless delivery.

•Mentor junior developers and conduct code reviews to maintain quality standards.

Required Skills & Expertise

•Django/Python – Advanced proficiency in backend development.

•Microservices Architecture – Strong understanding of distributed systems.

•PostgreSQL & Redis – Expertise in relational and in-memory databases.

•Docker/Kubernetes – Hands-on experience with containerization and orchestration.

•API Design & System Design – Ability to design scalable and secure systems.

•Cloud (AWS/Azure) – Practical experience with cloud services and deployments.

•Security Best Practices – Knowledge of authentication, authorization, and data protection.

Preferred Qualifications

•Experience with CI/CD pipelines and DevOps practices.

•Familiarity with message queues (e.g., RabbitMQ, Kafka).

•Exposure to monitoring tools (Prometheus, Grafana).

What We Offer

•Competitive salary and benefits.

•Opportunity to work on cutting-edge backend technologies.

•Collaborative and growth-oriented work environment.

Senior Backend Developer /Backend Developer

Hiring for the position of Backend Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

Role

●        Create and consume restful APIs

●        Design, develop, and maintain internal and external applications

●        Build efficient, testable, and reusable modules

●        Write high quality, structured application/interface code and documentation

●        Identify solutions through research and collaboration that resolves the root of problems as they arise

●        Define functional and technical requirements for application software to develop skills and knowledge

●        Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality

●        Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql 

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Education: Min. Graduate in related discipline

Work experience: 2 years relevant experience

Must have,

- Fundamental of Python(Data types in python, scope of variable, asynchronous programming)
- Should be able to code in Python

- Basic Understanding of Database

- API designing

- Problem Solving skills

- Fundamentals of storage, caching

Good to have,

- AWS Knowledge,

- Python Framework(Django, Flask)

- Knowledge on Message Broker, Caching

- SQL and no-SQL database

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success

Role: Technical Lead

Location: Mumbai/Kolkata

Years of Experience - 9 to 15 years

Qualifications:

• Required person as .net core, team Management,Good communication,Plus Rest API,AWS Lambda,mySql
• AWS API Gateway .
• Bachelor’s degree preferably in Computer Science, Computer Engineering or related field.
• 9 to 12 yrs years’ experience in technology related roles including relevant work as technical architect.
• Experience working with latest software technologies (.Net core 3.1+, MVC/WCF/Web API, cloud hosted (AWS) , mobile ready software products (Angular 6+/React.js)
• Experience in AWS cloud.
• Experience working with GIT/TFS, CI/CD setups, Application Monitoring, Logging and Analysis tools
• Experience working with Service Oriented Architecture
• Experience working in an Agile-SCRUM environment using tools like Jira or equivalent
• Experience working with international customers (US and UK preferable)
• Experience in customer interaction and ability to present solutions and consult clients on technology solutions.
• Ability to effectively communicate with various levels of employees ranging from entry level to senior leadership.
• Proven strong relationship-building and communication skills with team members and business users. Ability to coach and mentor internal teams and customers.
• Highly motivated with excellent verbal and written communication, presentation, facilitation, negotiation and problem solving skills.
• Self-starter with strong organizational and time management skills, self-directed and able to handle multiple priorities with demanding timeframes.
• Willingness and ability to work flexible hours and with minimal supervision.  
• Willingness and ability to travel domestic and occasional international across US and Europe.
• Proficient using standard software, such as MS Office applications, Google Apps, and communication and diagramming/presentation tools.

Roles and responsibilities

• Develop well-designed performant and scalable applications and microservices
• Writing reusable, testable, and efficient code aligning to software development best practices
• Integrate data storage solutions including databases, key-value stores, blob stores, etc.
• Build integrations with 3rd party applications through apis’ to ingest and process data
• Develop state-of-the-art analytics tools to support diverse tasks ranging from ad hoc analysis to production-grade pipelines and workflows for customer applications
• Ensure security and data protection aspects within the applications
• Partner with Data Scientists and Analytics Engineers to improve the performance and reliability of advanced algorithms
• Ensure high performance and availability of distributed systems and applications
• Interact directly with client project team members and operational staff to support live customer deployments and production issues

• 4+ years of experience in developing applications using python and related technologies.
• Familiarity in data ingestion and processing libraries in python.
• Thorough understanding of REST and GRPC technologies.
• Experience in using ORM (Object Relational Mapper) libraries for data access.
• Experiencing in developing and hosting APIs and integration with external applications.
• Experience in building data models and repositories using relational and NoSql databases.
• Knowledge of JIRA, Bitbucket and agile methodologies.
• Good to have knowledge of AWS services like Lambda, dynamodb, kinesis and others.
• Understanding of fundamental design principles behind a scalable application
• Familiarity with event-driven programming
• Strong unit test and debugging skills
• Affinity for learning and applying new technologies and solving new problems
• Effective organizational skills with strong attention to detail
• Experience in working with docker is a plus
• Comfortable in working with Unix/Linux environment
• Strong communication skills — both written and verbal