Sr DotNet Backend Developer

JOB DESCRIPTION

Experience: 5-8 years

Location: Mumbai

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. - 5-8 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 Title : Python Django Developer

Experience : 3+ Years

Location : Gurgaon Sector - 48

Working Days : 6 Days WFO (Monday to Saturday)

Job Summary :

We are looking for a skilled Python Django Developer with strong foundational knowledge in backend development, data structures, and operating system concepts.

The ideal candidate should have experience in Django and PostgreSQL, along with excellent logical thinking and multithreading knowledge.

Main Technical Skills : Python, Django (or Flask), PostgreSQL/MySQL, SQL & NoSQL ORM, Microservice Architecture, Third-party API integrations (e.g., payment gateways, SMS/email APIs), REST API development, JSON/XML, strong knowledge of data structures, multithreading, and OS concepts.

Key Responsibilities :

• Write efficient, reusable, testable, and scalable code using the Django framework
• Develop backend components, server-side logic, and statistical models
• Design and implement high-availability, low-latency applications with robust data protection and security
• Contribute to the development of highly responsive web applications
• Collaborate with cross-functional teams on system design and integration

Mandatory Skills :

• Strong programming skills in Python and Django (or similar frameworks like Flask).
• Proficiency with PostgreSQL / MySQL and experience in writing complex queries.
• Strong understanding of SQL and NoSQL ORM.
• Solid grasp of data structures, multithreading, and operating system concepts.
• Experience with RESTful API development and implementation of API security.
• Knowledge of JSON/XML and their use in data exchange.

Good-to-Have Skills :

• Experience with Redis, MQTT, and message queues like RabbitMQ or Kafka.
• Understanding of microservice architecture and third-party API integrations (e.g., payment gateways, SMS/email APIs).
• Familiarity with MongoDB and other NoSQL databases.
• Exposure to data science libraries such as Pandas, NumPy, Scikit-learn.
• Knowledge in building and integrating statistical learning models.

PHP

Job description

We are seeking a highly skilled Senior Software Developer with proven experience in developing and scaling Education ERP solutions. The ideal candidate should have strong expertise in Core PHP, MySQL, and React Native, along with hands-on experience in implementing ERP modules such as HR, Exams, Inventory, Learning Management System (LMS), Admissions, Fee Management, and Finance.

Key Responsibilities

Design, develop, and maintain scalable Education ERP modules.

Work on end-to-end ERP features, including HR, Exam, Inventory, LMS, Admissions, Fees, and Finance.

Build and optimize REST APIs/GraphQL services and ensure seamless integrations.

Optimize system performance, scalability, and security for high-volume ERP usage.

Conduct code reviews, enforce coding standards, and mentor junior developers.

Stay updated with emerging technologies and recommend improvements for ERP solutions.

Required Skills & Qualifications

Strong expertise in Node.js and Core PHP.

Proficiency with MySQL, MongoDB, PostgreSQL (database design & optimization).

Frontend knowledge: JavaScript, jQuery, HTML, CSS (React Native/Vue preferred).

Experience with REST APIs, GraphQL, third-party integrations (payment gateways, SMS, email).

Hands-on with Git/GitHub, Docker, CI/CD pipelines.

Familiarity with cloud platforms (AWS, Azure, GCP) is a plus.

6 years of professional development experience, with a minimum of 3 years in ERP systems.

Preferred Experience

Prior work in Education ERP domain.

Deep knowledge of HR, Exam, Inventory, LMS, Admissions, Fees & Finance modules.

Exposure to high-traffic enterprise applications.

Strong leadership, mentoring, and problem-solving abilities

Benefit;

 Permanent Work From Home.

Job Title: Lead Java Developer

Experience Required: 7+ Years

Location: Mumbai

About the Role

We are seeking a highly skilled Senior Backend Developer with deep expertise in building scalable, high-performance applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, Microservices, and distributed systems. You will play a key role in designing and optimizing APIs, architecting robust systems, and collaborating with cross-functional teams to deliver innovative solutions.

Key Responsibilities

• Design, develop, and maintain scalable backend systems using Java, Spring Boot, and Microservices architecture.
• Build and optimize APIs for large-scale applications ensuring high performance and reliability.
• Apply clean coding principles, SOLID design patterns, and clean architecture to deliver maintainable and robust code.
• Work with distributed systems technologies (Kafka, ELK, in-memory databases, Cassandra, or similar).
• Write efficient SQL queries and integrate with relational and NoSQL databases.
• Collaborate with product managers, architects, and other developers to define and align on technical decisions.
• Identify and solve complex problems with innovative and scalable solutions.
• Drive best practices in coding standards, system design, and performance optimization.
• Communicate complex technical concepts clearly across teams and stakeholders.

Skills & Qualifications

• 7+ years of experience as a Backend Developer.
• Strong expertise in Java, Spring Boot, Microservices, SQL.
• Significant experience in API design and optimization for enterprise-scale applications.
• Proficiency in distributed systems & related technologies (Kafka, ELK, in-memory DBs, Cassandra, etc.).
• Strong understanding of object-oriented engineering principles (SOLID, clean architecture).
• Excellent problem-solving and analytical skills with the ability to simplify complex concepts.
• Strong communication and collaboration skills, with the ability to influence and align teams.

About the Role 

As a result of our rapid growth, we are looking for a Java Backend Engineer to join our existing Cloud Engineering team and take the lead in the design and development of several key initiatives of our existing Miko3 product line as well as our new product development initiatives. 

Responsibilities 

•  Designing, developing and maintaining core system features, services and engines
• Collaborating with a cross functional team of the backend, Mobile application, AI, signal processing, robotics Engineers, Design, Content, and Linguistic Team to realize the requirements of conversational social robotics platform which includes investigate design approaches, prototype new technology, and evaluate technical feasibility
• Ensure the developed backend infrastructure is optimized for scale and responsiveness 
• Ensure best practices in design, development, security, monitoring, logging, and DevOps adhere to the execution of the project. 
• Introducing new ideas, products, features by keeping track of the latest developments and industry trends 
• Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules

Requirements 

• Proficiency in distributed application development lifecycle (concepts of authentication/authorization, security, session management, load balancing, API gateway), programming techniques and tools (application of tested, proven development paradigms)  
• Proficiency in working on Linux based Operating system. 
• Working Knowledge of container orchestration platform like Kubernetes
• Proficiency in at least one server-side programming language like Java. Additional languages like Python and PHP are a plus 
• Proficiency in at least one server-side framework like Servlets, Spring, java spark (Java). 
• Proficient in using ORM/Data access frameworks like Hibernate,JPA with spring or other server-side frameworks. 
• Proficiency in at least one data serialization framework: Apache Thrift, Google ProtoBuffs, Apache Avro,Google Json,JackSon etc. 
• Proficiency in at least one of inter process communication frameworks WebSocket's, RPC, message queues, custom HTTP libraries/frameworks ( kryonet, RxJava ), etc.  
• Proficiency in multithreaded programming and Concurrency concepts (Threads, Thread Pools, Futures, asynchronous programming). 
• Experience defining system architectures and exploring technical feasibility tradeoffs (architecture, design patterns, reliability and scaling)
• Experience developing cloud software services and an understanding of design for scalability, performance and reliability
• Good understanding of networking and communication protocols, and proficiency in identification CPU, memory & I/O bottlenecks, solve read & write-heavy workloads. 
• Proficiency is concepts of monolithic and microservice architectural paradigms. 
• Proficiency in working on at least one of cloud hosting platforms like Amazon AWS, Google Cloud, Azure etc.   
• Proficiency in at least one of database SQL, NO-SQL, Graph databases like MySQL, MongoDB, Orientdb 
• Proficiency in at least one of testing frameworks or tools JMeter, Locusts, Taurus 
• Proficiency in at least one RPC communication framework: Apache Thrift, GRPC is an added plus 
• Proficiency in asynchronous libraries (RxJava), frameworks (Akka),Play,Vertx is an added plus 
• Proficiency in functional programming ( Scala ) languages is an added plus 
• Proficiency in working with NoSQL/graph databases is an added plus 
• Proficient understanding of code versioning tools, such as Git is an added plus 
• Working Knowledge of tools for server, application metrics logging and monitoring and is a plus Monit, ELK, graylog is an added plus 
• Working Knowledge of DevOps containerization utilities like Ansible, Salt, Puppet is an added plus 
• Working Knowledge of DevOps containerization technologies like Docker, LXD is an added plus  

Technical Lead - .NET

Responsibilities:

• Develop and deliver technical systems
• Maintain adherence to architectural standards/principles, global product-specific guidelines, usability design standards, etc.
• Participate in the development and review of documents to comply with SDLC methodologies [e.g., Engineering Work Breakdown Structure (WBS), estimation, Solution Design Document (SDD) and Software Architecture Documents (SAD)]
• Provide support and documentation to assist in sustaining the project during the transition to production where necessary
• Adhere to Application Engineering methodologies, standards, code reviews
• Provide feedback regarding application engineering methodologies, standards, and leading practices when appropriate
• Identify potential points of contention for missed activities and notify project leadership of situation and remediation plan
• Minimize technical exposure and risk on projects
• Provide technical guidance to development team members
• Technical deliverables (i.e., code and documentation) on projects assigned
• Translate detailed Requirements and Design and Solution Architecture deliverables into detailed design specifications
• Maintain effective and consistent communication within the team, with peers, the leadership team, and the peers in other IT groups
• Proactively raise issues to Technical and Group Leads when necessary
• Produce high-quality application engineering deliverables in accordance with the project timeline
• Build and unit test a project to detailed design specifications
• Provide thought leadership and technical guidance to engineering staff
• Review of code completed
• Review performance of developers
• Proactively anticipate project issues before they occur; define the problem; identify possible causes; work with the team to identify solutions; select and implement the most appropriate solution
• Apply judgment in implementing Application Engineering methodologies, processes, and practices to specific requirements of projects/programs which may include product design engineering, information security, code maintainability and reliability

Requirements:

Must Have:

• Bachelor’s OR master’s degree in a technical field and/or equivalent work experience
• At least 3 years acting a senior architecture / technical lead role in a comparable organization
• Significant experience of deploying large, enterprise-wide implementations to significant user volumes
• At least 5 years of hands-on experience leading a team of developers - defining work breakdown structures/tasks, assigning the teamwork items, monitoring, and ensuring quality and adherence to standards etc.
• At least 8 years of relevant hands-on work experience building, integrating, and delivering enterprise-wide web and windows applications using Microsoft and other technologies for large organizations on complex projects
• 8+ years of ASP.Net MVC, ASP.Net experience
• 8+ years of experience of working with applications that have a SQL Server backend
• 5+ years of experience with Object-Relational Mappers such as Entity Framework, ADO.NET, Dapper
• Expert level knowledge of .NET Web API is required. .NET Core knowledge is preferred, but Web API experience with legacy .NET is ok
• 5+ years of experience with GIT
• 3+ years of experience of Azure Devops
• In-depth knowledge of object-oriented analysis and design (OOAD) principles, and familiarity with many design patterns for Software applications.
• Demonstrated expertise in application design and construction, work breakdown structure of items, design and code reviews, unit test and build activities, deployment and performance related activities, documentation, support, and training/mentoring
• Excellent communication skills, verbal and written

Nice to have:

• Ideally experience working with SSRS, SSIS
• Experience with MongoDB or another document database would be a plus
• Knowledge and experience with working on N-Tier applications.
• Demonstrated ability to build strong working relationships
• Experience working on projects following Agile methodologies would be ideal
• Experience working with Azure or other cloud providers would be ideal
• Ability to work within diverse, global, virtual teams.
• Proven ability to thrive under pressure
• Some experience with design and prototyping tools and diagramming is desired