

Backend .Net Developers
Vizag/Hyderabad/Remote
Contract / Fulltime
UK shift : 2- 11 PM IST
Exp Level: 6-10 years
Details:
.Net Core
C#
Experience in developing Microservices.
Experience deploying MicroServices in Docker containers
MVC or other design patterns
Container services in AWS/Azure
Experience with MS-SQL or Postgress
Knowledge on Message Queuing
EXCELLENT COMMUNICATION MUST
This role is a US Client facing, hence we need someone with excellent communication skills and also someone with prior US Client facing experience.
Interview Process:
Online Assessment
Call with our VP
End Customer Interview

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Java Developer – Job Description
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.
About Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.
Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

About Sun King
Sun King is the world’s leading off-grid solar energy company, providing affordable solar solutions to the 1.8 billion people without reliable access to electricity. By combining product design, fintech, and field operations, Sun King has connected over 20 million homes to solar power across Africa and Asia, adding more than 200,000 new homes each month. Through ‘pay-as-you-go’ financing, customers make small payments to eventually own their solar systems, saving money and reducing reliance on harmful energy sources like kerosene.
Sun King employs 2,800 staff across 12 countries, with expertise in product design, data science, logistics, customer service, and more. The company is expanding its product range to include clean cooking, electric mobility, and entertainment solutions, all while supporting a diverse workforce — with women making up 44% of the team.
About the role
The Senior Software Developer - Backend will work as part of the Digitization and Automation team to support Sun King design, develop, and implement intelligent, tech-enabled solutions to help solve a large variety of our business problems. We are looking for candidates with an affinity for technology and automations, curiosity towards advancement in products, and strong coding skills for our in-house software development team.
What you will be expected to do:
- Design and build applications/systems based on wireframes and product requirements documents.
- Design and develop coherent and physical data models to meet application requirements.
- Identify and correct bottlenecks/bugs according to operational requirements.
- Focus on scalability, performance, service robustness, and cost trade-offs.
- Create prototypes and proof-of-concepts for iterative development.
- Take complete ownership of projects (end to end) and their development cycle.
- Mentoring and guiding team members.
- Unit test code for robustness, including edge cases, usability, and general reliability.
- Integrate existing tools and business systems (in-house tools or business tools like ticketing software and communication tools) with external services.
- Coordinate with Product Manager, development team, & business analysts.
You might be a strong candidate if you have/are:
- A minimum of 4 years of experience.
- Deep knowledge of OOPS concepts and programming skills in Core Java, Spring Framework.
- Experience in web service development and integration (SOAP, REST, JSON, XML).
- Should be very strong in problem solving, data structures, and algorithms.
- Strong experience in SQL.
- Experience in the AWS suite (Ec2, RDS, Lambda, API Gateway).
- Experience in scripting languages like Python.
- Experience in Microservice Architecture.
- Prior managing/mentoring experience.
- Knowledge of best software engineering practices for all stages of the software development life cycle, including coding standards, code reviews, testing, and deployment.
Good to have:
- Knowledge on messaging systems RabbitMQ, Kafka.
- Container-based application deployment (Docker or equivalent)
- Willing to learn new technologies and implement them in products.
What Sun King offers:
- Professional growth in a dynamic, rapidly expanding, high-social-impact industry.
- An open-minded, collaborative culture made up of enthusiastic colleagues who are driven by the challenge of innovation towards profound impact on people and the planet.
- A truly multicultural experience: you will have the chance to work with and learn from people from different geographies, nationalities, and backgrounds.
- Structured, tailored learning and development programs that help you become a better leader, manager, and professional through the Sun King Center for Leadership.
We are looking for a Rust Developer to join our cutting-edge development team as it grows. The candidate must be comfortable working in an agile environment and can take the lead when necessary.
Responsibilities:
- Responsible for developing the product as per the product specification defined by the product managers
- Responsible for performing research on the best methods of implementing the requirements
- Author and curate technical documentation to support delivery, maintenance, and adoption
- Work with programmers, engineers, and management heads to identify process improvement opportunities, propose system modifications, and devise governance strategies to optimise the overall performance
- Design and develop automated deployment and maintenance mechanisms
- Solving development challenges and making architectural decisions by understanding the larger picture of the project goals
- Expanding your existing skill set, and picking up on various rust-dependent frameworks
- Confidently communicating and collaborating with your fellow developers in an office set-up.
Requirements:
- Must have experience in Rust programming language
- Have excellent knowledge of different data structures and algorithms
- Working knowledge of any other programming language Python, Java, or JavaScript is good to have
- Experience with, or understanding of, Kafka or Redis, Cloud infrastructure services, and Docker is an added advantage
- Experience with SQL or NoSQL databases, MySQL, MongoDB, Elasticsearch, etc.
- Experience in Backend and APIs development
- Experience in analysing and optimising the platform's performance




CodeCraft Technologies is a multi-award-winning creative engineering company offering design and technology solutions on mobile, web, and cloud platforms.
We are looking for an ambitious Xamarin developer to join our team.
Roles and Responsibilities:
• Work with product owners and engineering managers to understand the product roadmap.
• Designing and building advanced mobile features and Custom UI.
• Ensuring responsiveness of applications.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Keep the app stable and secure all the time.
• Continuously discovering, evaluating, and implementing new technologies and processes to maximize development efficiency.
• Comprehensively testing code for robustness including edge cases, usability and general reliability.
• Building reusable components and front-end libraries for future use.
• Communicate with the project manager regarding the status of the project and suggest appropriate deadlines for new functionalities.
• Resolve all the bugs reported by the QA team in a timely manner.
Desired Profile:
• Must Have Skills: Xamarin, MAUI, C# .NET
• Other Skills: Flutter & Dart and/or Java/Kotlin and/or Swift/ Swift UI
Good to Have:
• .NET Certification
• Native (iOS and Android) development Experience.
About the company and work culture:
You will love working with CodeCraft ☺
● Our projects are fast-paced. Everyone is expected to take ownership of the work assigned and are accountable for the same.
● We love to work with people who are proactive, Solution providers and are contributing positively.
● The office has an open culture.
● We encourage leadership development.
● We have good long-term benefits, a yearly vacation, and good opportunities to learn new skills and grow.
● We have worked with the #1 Sports stadium in the world and developed solutions used by NFL, NBA, and Soccer teams.
● We are currently working with clients on the Forbes list USA. One of them is the youngest RE billionaire in the USA.
● Our clients include a few Fortune companies.
● We have developed solutions featured by Apple and Microsoft.
● We won all the entries sent to design awards including a few Indian and International design awards.
● We are working with one of the 50 largest employers in NYC in the healthcare domain.
● We are working with both emerging and very successful start-ups globally.
Design Awards:
● India's Best Design Project Award, IBDA 2018. The jury was from 11 countries. We had 2 entries and won both.
● 11th International Design Awards, LA. There were 3200 entries from 95 countries. We won Silver in design for the Society Category.
● India's Best Design Project Award, IBDA 2017. The jury was from 10 countries.
● Finalist at Design4India- NASSCOM event.
Our business spread last year was:
• USA (95%)
• UK, India, New Zealand and Germany (2%)
Visit us on:
https://www.codecrafttech.com/
LinkedIn - https://tr.linkedin.com/company/codecraft-technologies-private-limited
Instagram - https://www.instagram.com/codecrafttech/
Facebook - https://www.facebook.com/CodeCraft/
Providing technical expertise for every phase of the project lifecycle—from concept
development to solution design, implementation, optimization and support. Interacts
with a set of clients (client senior developers and architects) to create technology
specifications from business requirements for one of the modules within the project.
Prepares the technical design of the more complex technology components within the
module (one or more of client/web presentation tier, server tier, data access and data
model, integration component, package function customization).
Assists the architect in articulating the pros and cons of using a certain technology stack
or component or design pattern versus another to the clients and project team and
drives selection of technologies, designs to come up with the optimal architecture.
Drives the performance tuning, re-design and re-factoring for a module.
Contributes to designing and implementing the build, releases process as well as system
configuration and deployment characteristics of the application.
Required Tech Stack
2+ years of strong development skills in Java with JDK 1. 8 & above version &
Microservices with Spring boot/ Spring.
Should have strong acumen in Data Structures, Algorithms, problem-solving and Logical/
Analytical skills.
Thorough understanding of OOPS concepts, Design principles and implementation of
different type of Design patterns.
Sound understanding of concepts like Exceptional handling, Serialization/Deserialization
and Immutability concepts, etc.
Good fundamental knowledge in Enums, Collections, Annotations, Generics, Auto
boxing, etc. Experience with Multithreading, Concurrent Package and Concurrent APIs Basic
understanding of Java Memory Management (JMM) including garbage collections
concepts.
Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by,
aggregate functions, etc.)
Experience with at-least one NoSQL (Any of Cassandra/Couch base/Hadoop), Hands-on
experience with JMS
Hands-on experience in creating RESTful webservices and consuming webservices
Hands-on experience with Spring.
Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
Experience of writing Junit test cases using Mockito / Powermock frameworks.
Should have practical experience with Maven/Gradle and knowledge of version control
systems like Git/SVN etc.
Good communication skills and ability to work with global teams to define and deliver
on projects.
Sound understanding/experience in software development process, test-driven
development
We are looking for a Java developer responsible for building Java applications. This includes anything between complex groups of back-end services and their client-end counterparts. Primary responsibility will be to design and develop these types of applications and to coordinate with the rest of the team working on different layers of the infrastructure.
Responsibilities:
Contribute to all stages of the software development lifecycle
Design, build and maintain efficient, reusable, and reliable Java code
Design, implement and maintain applications that can be high-volume and low-latency
Identify bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization, and automatization
Skills:
Minimum 3+ years of experience in Java
Proficient in Java and Springboot
Solid understanding of object-oriented programming
Familiar with various design and architectural patterns
Skill for writing reusable Java libraries
Familiarity with concepts of MVC, and RESTful
Proficient understanding of code versioning tools, such as Git
Familiarity with build tools such as Maven, and Gradle
Excellent knowledge of Relational Databases, SQL, and ORM technologies (Hibernate)
Excellent written and verbal communication.

Job Description
- Managing the interchange of data between the server and the users.
- Development of all server-side logic, ensuring high performance and responsiveness to requests from the front-end Integrating the front-end elements built by your co-workers into the application; therefore, a basic understanding of front-end technologies is necessary as well.
- Writing reusable, testable, and efficient code.
- Design and implementation of low-latency, high-availability, and performant applications.
- Integration of user-facing elements developed by front-end developers with server-side logic
- Implementation of security and data protection.
Expected experience with
- Should have worked on the Django REST framework.
- Familiarity with some Pandas, Numpy, text parsing/mining and ORM (Object Relational Mapper) libraries
- Able to integrate multiple data sources and databases into one system
- Understanding of the threading limitations of Python, and multi-process architecture
- Good understanding of server-side templating languages
- Worked on Amazon cloud solutions
- Understanding of accessibility and security compliance
- Knowledge of user authentication and authorization between multiple systems, servers, and environments
- Understanding of fundamental design principles behind a scalable application
- Familiarity with event-driven programming in Python
- Able to create database schemas that represent and support business processes
- Strong unit test and debugging skills
- Proficient understanding of code versioning tool
- Excellent written and verbal communication skills.
- Should know about HDL and LLD.
- Should know about making python packages
- Should have worked on microservice-based Architecture
- Experience 5+ Years
- Can join immediately
- Well-versed in Core Java, OOPs concepts, collections, multi-threading, concurrency, lambdas, and streams.
- Hands-on knowledge of Spring Core, MVC, JPA, security, transaction.
- Working knowledge of REST API designing as well as development, using Spring.
- Exposure to Spring Boot, Docker, Kubernetes, OpenShift for the microservices environment.
- Savvy with SQL and database concepts.
- Ability to use frameworks like JUnit, Mockito, etc., for implementing unit testing.
- Sound understanding of code versioning tools, such as Git/bit bucket with Maven.


We are looking for dynamic and hands-on dot net developer Technical Lead
• Proficient in C#, with a good knowledge of its ecosystems Familiarity with the .NET framework.
• Experience (In Years): 4+ years
• Mandatory Technical Skills: ASP .NET, MVC 4.0 or above, Entity Framework 5.0 or above.
Roles & Responsibilities:
• Design, Develop and Maintain web-based applications using C# language, MVC, REST API, Entity Framework 5.0 and above, , MySQL/SQL Server database knowledge.
• Front end technologies like Ajax, jQuery, JavaScript, HTML, CSS. Additional experience in JavaScript frameworks like ReactJS, D3.JS is desirable.
• Carries out routine duties independently; uses appreciable originality on system assignments; discusses or seeks approval on complex matters.
• Lead team members assist / direct them in producing timely and quality project deliverables and troubleshooting activities with zero or minimal supervision and supervise these activities for junior team members. Provide technology support to team when needed.
• Communicates and articulates design decisions in concise and clear manner to internal and external stakeholders.
• Serves as a backup to related positions as needed.
• Maintains a positive and professional work atmosphere by behaving and communicating in a manner that gets along with customers, clients, coworkers, and managers to ensure good client service and interpersonal rapport.
• Abides by all Company policies and procedures.



