Senior Software Engineer - Backend

JOB DESCRIPTION

Experience: 3-8 years

Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Required Skills:

• Exp. - 3-8 years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

Job Summary

We are looking for a Software Engineer with 3–5 years of experience in Python development, browser automation, Azure cloud technologies, and API development. The ideal candidate should have hands-on experience in building automation solutions, cloud-native applications, and backend services using Python while collaborating with cross-functional teams to deliver scalable and reliable enterprise solutions.

Key Responsibilities

* Design, develop, test, and maintain Python-based applications and automation solutions.

* Develop browser automation scripts for enterprise web applications using Python.

* Create robust and dynamic element selectors to handle changing web interfaces.

* Implement exception handling, retry mechanisms, logging, and monitoring in automation solutions.

* Develop solutions to handle authentication workflows and CAPTCHA scenarios where permitted.

* Build and maintain RESTful APIs using FastAPI or similar Python frameworks.

* Develop serverless applications using Azure Functions and integrate with Azure services.

* Design and implement integrations using Azure Logic Apps, Service Bus, Storage Accounts, and Key Vault.

* Deploy and manage applications using Azure Container Registry (ACR), Azure Container Apps, and Azure Container Instances (ACI).

* Configure and manage KEDA for event-driven application scaling.

* Develop and maintain frontend applications using React.js, Node.js, or similar modern JavaScript frameworks.

* Design and optimize database solutions using SQL Server, PostgreSQL, or Azure Cosmos DB.

* Troubleshoot production issues and implement permanent fixes.

* Participate in code reviews, testing, deployment, and release activities.

* Follow coding standards, security best practices, and application performance guidelines.

Required Skills

Python Development

* Strong experience in Python programming.

* Experience developing scalable backend applications and automation solutions.

* Experience with asynchronous programming and API integrations.

Browser Automation

* Hands-on experience in browser automation using Python libraries such as Playwright or Selenium.

* Experience creating dynamic selectors and handling dynamic web elements.

* Strong understanding of synchronization techniques, waits, retries, and exception handling.

* Experience implementing logging, monitoring, and debugging for automation solutions.

* Familiarity with CAPTCHA handling approaches and authentication workflows.

Azure Cloud

* Hands-on experience with Azure Functions.

* Experience with Azure Logic Apps.

* Experience using Azure Storage Accounts.

* Experience with Azure Service Bus.

* Experience with Azure Key Vault.

* Understanding of cloud-native application design and Azure security best practices.

Containerization & Deployment

* Experience with Azure Container Registry (ACR).

* Experience deploying applications to Azure Container Apps.

* Experience with Azure Container Instances (ACI).

* Experience configuring and managing KEDA for event-driven autoscaling.

* Familiarity with container-based deployments and application lifecycle management.

### API Development

* Experience building REST APIs using FastAPI or similar Python frameworks.

* Strong understanding of REST principles, JSON, authentication, and API integrations.

Databases

* Experience with SQL Server and/or PostgreSQL.

* Experience with Azure Cosmos DB.

* Ability to write efficient SQL queries and optimize database performance.

Frontend Development

* Experience with React.js, Node.js, or similar frontend technologies.

* Understanding of modern web application architecture and API consumption.

Additional Skills

* Experience with Git and version control.

* Strong debugging and analytical skills.

* Good communication and teamwork skills.

Preferred Skills

* Experience with OCR and document processing solutions.

* Experience with Azure AI or AI-based services.

* Experience with event-driven architectures.

* Experience working in Agile/Scrum environments.

* Experience with automation platforms such as UiPath is an added advantage.

Education

Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.

Job Summary

We are seeking an experienced Java Drools Developer to design, develop, and maintain rule-based applications using Drools. The ideal candidate will have strong backend development skills and hands-on experience with business rule management systems in enterprise environments.

Key Responsibilities

• Design, develop, and maintain business rules using Drools (BRMS)
• Create and manage Drools Rule Files (DRL), decision tables, and rule flows
• Integrate Drools with Java / Spring Boot applications
• Optimize rule execution, performance, and scalability
• Develop and consume RESTful APIs
• Collaborate with business analysts to translate requirements into rules
• Participate in code reviews and ensure best practices
• Support testing, debugging, and production issues

Required Skills

• Strong hands-on experience in Java
• Solid experience with Drools Rule Engine / BRMS
• Experience with Spring / Spring Boot and microservices architecture
• Knowledge of REST APIs and backend integrations
• Understanding of rule lifecycle management and versioning
• Good problem-solving and analytical skills

Job Overview:

We are looking for a seasoned Senior Backend Engineer (SDE II) with over 3 years of experience to grow a high-performing engineering team. The ideal candidate will have extensive hands-on experience in software development, deep technical expertise, and a proven track record of successfully leading large-scale engineering teams and projects. This role requires strategic leadership, the ability to manage complex technical challenges, and the ability to drive innovation while ensuring operational excellence. As a Backend SDE-2, you will collaborate with key stakeholders across the business, product management, and operations to ensure alignment with the organization’s goals and play a critical role in shaping the technology roadmap and engineering culture.

Key Responsibilities:

• Strategic Planning: Work closely with senior leadership to develop and implement engineering strategies that support business objectives. Define technology roadmaps and ensure alignment with organizational goals.
• Technical Excellence: Guide the team in designing and implementing scalable, robust software systems. Drive the adoption of best practices in architecture, coding standards, and software testing to ensure high-quality product delivery.
• Project and Program Management: Oversee the successful delivery of engineering projects, ensuring deadlines, quality standards, and budget constraints are met. Use agile methodologies to manage the development process and resolve bottlenecks.
• Cross-functional collaboration: Collaborate with Product Management, Design, Business, and Operations teams to define project requirements and deliverables. Ensure the smooth integration of engineering efforts across the organization.
• Risk Management: Anticipate and mitigate technical risks and roadblocks. Proactively identify areas of technical debt and drive initiatives to reduce it.

Required Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
• 3+ years of experience in software engineering
• Proven track record of successfully delivering large-scale, high-impact software projects.
• Strong understanding of software architecture, design patterns, and scalable system design.
• Expertise in multiple programming languages and modern development frameworks For this role we require expertise in Python/Django and API Development
• Experience with cloud infrastructure (AWS), microservices, and distributed systems.
• Good experience with MySQL and ElasticSearch. Slight experience with other NoSQL and SQL databases.
• Experience in DevOps, CI/CD pipelines, and infrastructure automation.
•  Experience in delivering full-stack B2B/SaaS applications including mobile applications, web frontend, and a scalable backend.
• Excellent problem-solving skills, with the ability to diagnose and resolve complex technical challenges.
• Strong communication and interpersonal skills, with the ability to influence and inspire teams and stakeholders at all levels.

• 5+ Years Java/JEE development experience in an enterprise.
• 3+ Experience in #Grails Web Framework and #Groovy Language.
• Must have experience integrating Grails code with front-end JavaScript frameworks including Jquery.
• Must have experience working with XML and JSON using Grails, JMS and Web, services, XML, Apache Tomcat, SQL and Unix and GIT.
• Experience with RDMS concepts and SQL.
• Experience with RESTful Web Services.
• Understanding of proper application design techniques and methodologies.
• Proficient understanding of SDLC processes desired – Agile

Minimum Requirements

• 8+ years development experience
• Solid Experience and knowledge of

• Coding and debugging using Object Oriented languages like Java, C++, Go or similar languages.
• Database design, Query optimizations, pitfalls (both SQL, NoSQL)
• Developing Scalable, distributed systems and patterns
• Developing REST and/or GraphQL based APIs
• Writing and driving Clean code in a team (via SOLID principles).
• Knowledge of writing unit tests
• NodeJS

• Experience with GoLang/Python
• Experience with Microservices, designs and patterns
• Experience with Dockers/Kubernetes and orchestration
• Familiarity with    Reactive    programming    and patterns like RxJs/RxJava, CQRS, Eventing systems
• Experience with automating DevOps lifecycle
• Proficiency with

• Work with Product team and Drive design, development and deployment of the overall architecture and individual modules to support our Apps , website and internal tools
• Ensure the entire stack is designed and built for availability, speed, scalability, testability, debugging
• Design and development of our REST and GraphQL API
• implement and improve continuous integration and deployment
• Serve as a technical lead for the team
• Mentor team members

We are looking for a Backend Developer who has 4-6 years of experience in designing, developing, and implementing backend services using Python and Django.

- Responsibilities-

- Design highly scalable, testable code and follow Test Driven Development methodology 

- Able to write well-organized, modularised code with test cases.

- Contribute to the design and architecture of our backend APIs and deployment of microservices

- Ensure adherence to engineering best practices and maintain the overall quality of our codebase.

- Work with the product team to translate powerful ideas into everyday business value.

- Skills-

- Back-end programming language: Python

- Familiarity with Django or Flask framework

- Familiarity with AWS and Elastic Search

- Experience in SQL and NoSQL databases with an insight into various data modeling use cases

- Experience with system & unit testing

- Familiarity with containerized deployment

- Proficiency with Git

- Sound with data structures and algorithms and have a good understanding of design patterns, software architectures