
About NonStop io Technologies
NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment.
Brief Description:
We're seeking an AI/ML Engineer to join our team. As AI/ML Engineer, you will be responsible for designing, developing, and implementing artificial intelligence (AI) and machine learning (ML) solutions to solve real-world business problems. You will work closely with engineering teams, including software engineers, domain experts, and product managers, to deploy and integrate Applied AI/ML solutions into the products that are being built at NonStop io. Your role will involve researching cutting-edge algorithms and data processing techniques, and implementing scalable solutions to drive innovation and improve the overall user experience.
Responsibilities
● Applied AI/ML engineering; Building engineering solutions on top of the AI/ML tooling available in the industry today. Eg: Engineering APIs around OpenAI
● AI/ML Model Development: Design, develop, and implement machine learning models and algorithms that address specific business challenges, such as natural language processing, computer vision, recommendation systems, anomaly detection, etc.
● Data Preprocessing and Feature Engineering: Cleanse, preprocess, and transform raw data into suitable formats for training and testing AI/ML models. Perform feature engineering to extract relevant features from the data
● Model Training and Evaluation: Train and validate AI/ML models using diverse datasets to achieve optimal performance. Employ appropriate evaluation metrics to assess model accuracy, precision, recall, and other relevant metrics
● Data Visualization: Create clear and insightful data visualizations to aid in understanding data patterns, model behaviour, and performance metrics
● Deployment and Integration: Collaborate with software engineers and DevOps teams to deploy AI/ML models into production environments and integrate them into various applications and systems
● Data Security and Privacy: Ensure compliance with data privacy regulations and implement security measures to protect sensitive information used in AI/ML processes
● Continuous Learning: Stay updated with the latest advancements in AI/ML research, tools, and technologies, and apply them to improve existing models and develop novel solutions
● Documentation: Maintain detailed documentation of the AI/ML development process, including code, models, algorithms, and methodologies for easy understanding and future reference.
Qualifications & Skills
● Bachelor's, Master's, or PhD in Computer Science, Data Science, Machine Learning, or a related field. Advanced degrees or certifications in AI/ML are a plus
● Proven experience as an AI/ML Engineer, Data Scientist, or related role, ideally with a strong portfolio of AI/ML projects
● Proficiency in programming languages commonly used for AI/ML. Preferably Python
● Familiarity with popular AI/ML libraries and frameworks, such as TensorFlow, PyTorch, scikit-learn, etc.
● Familiarity with popular AI/ML Models such as GPT3, GPT4, Llama2, BERT etc.
● Strong understanding of machine learning algorithms, statistics, and data structures
● Experience with data preprocessing, data wrangling, and feature engineering
● Knowledge of deep learning architectures, neural networks, and transfer learning
● Familiarity with cloud platforms and services (e.g., AWS, Azure, Google Cloud) for scalable AI/ML deployment
● Solid understanding of software engineering principles and best practices for writing maintainable and scalable code
● Excellent analytical and problem-solving skills, with the ability to think critically and propose innovative solutions
● Effective communication skills to collaborate with cross-functional teams and present complex technical concepts to non-technical stakeholders

About NonStop io Technologies Pvt Ltd
About
NonStop io Technologies Pvt. Ltd.est. in 2015 is a software product development company.We invest in our client’s vision, build the technology and make sure the end-product is in alignment with their end business goals over short and the long term.
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About Wissen Technology
Wissen Technology, established in 2015 and part of the Wissen Group (founded in 2000), is a specialized technology consulting company. We pride ourselves on delivering high-quality solutions for global organizations across Banking & Finance, Telecom, and Healthcare domains.
For more details:
Website: www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: Wissen Technology
Role: Java Backend Developer with AWS
Key Responsibilities
● Design & Development: Build robust, scalable, and maintainable backend services using Java 17+ and the Spring Boot ecosystem.
● API Design: Develop and document RESTful for consumption by web and mobile frontends.
● Database Management: Optimize complex queries and design schemas for relational (PostgreSQL, MySQL) and/or NoSQL (MongoDB, DynamoDB) databases.
● Microservices Architecture: Contribute to the migration or maintenance of microservices, ensuring high availability and low latency.
● Code Quality: Perform thorough code reviews and write comprehensive unit, integration, and functional tests (JUnit, Mockito).
● Cloud & DevOps: Deploy and manage applications in AWS using Docker and Kubernetes.
● Collaboration: Work closely with Frontend Developers, Product Managers to translate business requirements into technical specifications.
Required Technical Skills
● Java Mastery: Deep understanding of Core Java, Multithreading, and Stream API.
● Frameworks: Extensive experience with Spring Boot, Spring Security, and Spring Data JPA/Hibernate.
● Cloud Experience: Proficiency with cloud-native services (e.g., AWS Lambda, S3, RDS, or SQS).
● Messaging: Experience with message brokers like Apache Kafka for asynchronous processing.
● CI/CD: Hands-on experience with Jenkins, GitLab CI, or GitHub Actions.
● Version Control: Expert-level knowledge of Git and branching strategies.
Qualifications & Soft Skills
● Experience: 5+ years of professional experience in backend development.
● Problem Solving: Ability to debug complex production issues and performance bottlenecks.
● Communication: Excellent verbal and written communication skills—vital for a remote/hybrid contractor setup.
● Adaptability: Proven ability to quickly learn new codebases and business domains.
Job Role Senior Dot Net Developer
Experience 8+ years
Notice period Immediate
Location Trivandrum / Kochi
Details Job Description
Candidates with 8+ years of experience in IT industry and with strong .Net/.Net Core/Azure Cloud Service/ Azure
DevOps. This is a client facing role and hence should have strong communication skills. This is for a US client, and
the resource should be hands-on - experience in coding and Azure Cloud.
Working hours - 8 hours, with 4 hours of overlap during EST Time zone. (12 PM - 9 PM) This overlap hours is
mandatory as meetings happen during this overlap hours.
Responsibilities
Design, develop, enhance, document, and maintain robust applications using .NET Core 6/8+, C#, REST APIs, T-
SQL, and modern JavaScript/jQuery
☑ Integrate and support third-party APIs and external services
☑ Collaborate across cross-functional teams to deliver scalable solutions across the full technology stack
☑ Identify, prioritize, and execute tasks throughout the Software Development Life Cycle (SDLC)
☑ Participate in Agile/Scrum ceremonies and manage tasks using Jira
☑ Understand technical priorities, architectural dependencies, risks, and implementation challenges
☑ Troubleshoot, debug, and optimize existing solutions with a strong focus on performance and reliability.
Primary Skills
8+ years of hands-on development experience with:
☑ C#, .NET Core 6/8+, Entity Framework / EF Core
☑ JavaScript, jQuery, REST APIs
☑ Expertise in MS SQL Server, including:
☑ Complex SQL queries, Stored Procedures, Views, Functions, Packages, Cursors, Tables, and Object Types
☑ Skilled in unit testing with XUnit, MSTest
☑ Strong in software design patterns, system architecture, and scalable solution design
☑ Ability to lead and inspire teams through clear communication, technical mentorship, and ownership
☑ Strong problem-solving and debugging capabilities
☑ Ability to write reusable, testable, and efficient code
☑ Develop and maintain frameworks and shared libraries to support large-scale applications
☑ Excellent technical documentation, communication, and leadership
skills
☑ Microservices and Service-Oriented Architecture (SOA)
☑ Experience in API Integrations
2+ years of hands with Azure Cloud Services, including:
☑Azure Functions
☑Azure Durable Functions
☑Azure Service Bus, Event Grid, Storage Queues
☑Blob Storage, Azure Key Vault, SQL Azure
☑Application Insights, Azure Monitoring.
Secondary Skills
☑Familiarity with AngularJS, ReactJS, and other front-end frameworks
☑Experience with Azure API Management (APIM)
☑Knowledge of Azure Containerization and Orchestration (e.g., AKS/Kubernetes)
☑Experience with Azure Data Factory (ADF) and Logic Apps
☑Exposure to Application Support and operational monitoring
☑Azure DevOps - CI/CD pipelines (Classic / YAML).
Certifications Required (IF Any)
Microsoft Certified: Azure Fundamentals
☑Microsoft Certified: Azure Developer Associate
☑Other relevant certifications in Azure, .NET, or Cloud technologies.
Ideal Candidate
What You'll Bring
• Experience: 6+ years building production backend systems in Node.js for B2C products at meaningful scale.
• System Design: This one matters a lot to us. You can reason clearly about scalability, reliability, and trade-offs under real constraints.
• Fundamentals: Strong grasp of API design, service-oriented architecture, data structures, algorithms, and clean code.
• Databases: Depth in SQL and/or NoSQL, data modeling, query optimization, and performance tuning.
• AI-Native: You already use LLMs and agentic approaches to maximize your own efficiency as an engineer.
• Mindset: You enjoy the pace and breadth of a small team, and you are happy picking up whatever moves the product forward.
Roles & Responsibilities
- Writing good quality code.
- Be able to design ,implement and deploy scalable backend applications on cloud(AWS/Azure).
- Be able to take ownership of projects and deliver them on time.
- Be able to lead a team and mentor junior developers.
Qualifications:
- BE/BTech degree in CS/IT or similar related field.
- 4+ years experience as backend engineer.
- Good knowledge in Python and at least one of the framework - Django, Flask, FastAPI, etc.
- Hands on experience in building microservices applications on AWS/GCP/Azure.
- Good understanding of platforms(Docker, AWS/Azure).
- Must have good understanding of Data Structures/Algorithms/Databases and other CS concepts.
- Experience working in multiple databases and data modelling.
- Experience writing APIs and related technologies like REST, JSON, websockets, grpc etc.
- Should be inquisitive enough picking up any language and frameworks based on need.
- Should be able to design/implement/deploy end-to-end systems.
- Having good knowledge on deploying cloud applications and with Dockers/Kubernetes is a plus.
- Experience building end-to-end analytics systems is a plus.
2. Data structure (HashMap, treemap, arraylist, linklist),
3. Streaming concepts (partitioning), Junit
4. Exception handling and workflow, Test coverage (why its important, how it gets handled at
java and spring layer, morckito library if the candidate knows that would be great),
5. OOPS concepts (inheritance),
6. Threading (mutex, threadpool, threading implementation, singleton factory, builder pattern,
abstract)
7. Real world problems (atleast 1 to be asked in IAAS interview) (movie ticket booking, parking
booking), To be asked to only selected candidates: Puzzle (probability/)
8. Memory management: Garbage Collection (GC), Heap dump, Thread dump, apache, google
library.
9. Spring frameworks and database. Data lakes, star lakes, schemas, indexing, partitioning,
optimize query, hibernate.
10. Data warehouse vs nosql vs time series database (KDB, DB2), data storage patterns.
11. Types of transaction control. Column level.
12. Query formation, grouping, nested queries, joints (inner joints, outer joints)
13. If candidate has spring exp: Architecture and various layers of Spring, coupling concepts,
dependency injections, inheritance, Bean level, JMS connection pooling concepts, Lambda,
Annotation vs XML, Kafka, Hibernates.
14. Good to have AI/ML inclination.
Bifurcation of Must have and good to have skills:
Must have skills Good to have skills
Core java (60%), spring (15%), and databases
(15%).
Mockito library
Data structure (HashMap, tree map, array list,
link list)
Threadpool
Streaming concepts (partitioning) Memory management
Exception handling Lambda, Annotation vs XML, Kafka, Hibernates
OOPS GCP or any cloud technology
Threading (singleton factory, builder pattern) AI/ML inclination
Real world problems (movie ticket booking,
parking booking)
Spring frameworks and database (indexing,
partitioning, layers of Spring, JMS connection)
Data warehouse vs NoSQL vs time series
database
Junit
- Write lots of bug-free, efficient, scalable and reusable code.
- Write unit tests and take responsibility for the quality of your own code.
- Coach, encourage and mentor your fellow software developers to do the same.
- Consult with product owners to define, scope and plan new features.
- Test, evaluate and recommend technologies to improve the overall product.
- Be a key participant in the Agile process.
- Produce excellent documentation.
- Undertake and implement processes for smoother and efficient deployment of code base
- Maintain code base as it grows bigger and scales
What we value
- 2-3 Years of experience building and shipping API’s using python based frameworks
- Proficiency with NoSql Databases (Elastic, Mongo) is a must
- Experience in working with Amazon Cloud Services like SNS, SQS, VPC, etc. is preferred
- Experience with databases migration and system re-architecture is valued
- Ability to write modular, reusable, and clean code
- Comfortable with ticket management and documentation
enterprise products
Strong experience with SOLID and programming design patterns
Strong experience of C#, ASP.NET, MVC, .Net Core
Experience with XML, ADO/ADO.NET, LINQ, AJAX, IIS
Extended experience with SQL, relational and non-relational databases like MongoDb,
DynamoDb
Experience in GIT/AWS DevOps.
Experience with Web API/ Rest API is a must.
Experience of cloud (AWS) is a must
Experience with Agile methodology











