
Role / Purpose - Lead Developer - API and Microservices
Must have a strong hands-on development track record building integration utilizing a variety of integration products, tools, protocols, technologies, and patterns.
- Must have an in-depth understanding of SOA/EAI/ESB concepts, SOA Governance, Event-Driven Architecture, message-based architectures, file sharing, and exchange platforms, data virtualization and caching strategies, J2EE design patterns, frameworks
- Should possess experience with at least one of middleware technologies (Application Servers, BPMS, BRMS, ESB & Message Brokers), Programming languages (e.g. Java/J2EE, JavaScript, COBOL, C), Operating Systems (e.g. Windows, Linux, MVS), and Databases (DB2, MySQL, No SQL Databases like MongoDB, Cassandra, Hadoop, etc.)
- Must have experience implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee and frameworks such as Spring Boot for Microservices
- Should have Advanced skills in implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee or similar frameworks such as Spring Boot for Microservices
- Appetite to manage large-scale projects and multiple tracks
- Experience and knowhow of the e-commerce domain and retail experience are preferred
- Good communication & people managerial skills

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Key Skills required (Items in Bold are mandatory keywords) :
1. Proficiency in Python & Django
2. Solid understanding of Python concepts
3. Experience with some form of Machine Learning (ML)
4. Experience in using libraries such as Numpy and Pandas
5. Some form of experience with NLP and Deep Learning using any of Pytorch, Tensorflow, Keras, Scikit-learn or similar
6. Hands on experience with RDBMS such as Postgres or MySQL
7. Experience building REST APIs using DRF or Flask
8. Comfort with Git repositories, branching and deployment using Git
9. Working experience with Docker
10. Experience in deploying Django applications to AWS,Digital Ocean or Heroku
Job Overview:
We are looking for a skilled Senior Backend Engineer to join our team. The ideal candidate will have a strong foundation in Java and Spring, with proven experience in building scalable microservices and backend systems. This role also requires familiarity with automation tools, Python development, and working knowledge of AI technologies.
Responsibilities:
- Design, develop, and maintain backend services and microservices.
- Build and integrate RESTful APIs across distributed systems.
- Ensure performance, scalability, and reliability of backend systems.
- Collaborate with cross-functional teams and participate in agile development.
- Deploy and maintain applications on AWS cloud infrastructure.
- Contribute to automation initiatives and AI/ML feature integration.
- Write clean, testable, and maintainable code following best practices.
- Participate in code reviews and technical discussions.
Required Skills:
- 4+ years of backend development experience.
- Strong proficiency in Java and Spring/Spring Boot frameworks.
- Solid understanding of microservices architecture.
- Experience with REST APIs, CI/CD, and debugging complex systems.
- Proficient in AWS services such as EC2, Lambda, S3.
- Strong analytical and problem-solving skills.
- Excellent communication in English (written and verbal).
Good to Have:
- Experience with automation tools like Workato or similar.
- Hands-on experience with Python development.
- Familiarity with AI/ML features or API integrations.
- Comfortable working with US-based teams (flexible hours).
Java Developer – Job Description
Wissen Technology is now hiring a Java Developer 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 consultancy.
Required Skills:
• Exp. - 4 to 9 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 Company:
Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.
Minimum Requirements/Qualifications:
(i) Minimum education qualification of MCA/ MSc (Computer Science)/BE/BTech (computers/ IT).
(ii) Must have at least 2.5 to 5 years of experience in application development, deployment, and testing. He/ She must possess a valid MySQL Developer or Java Developer certification, which is obtained at least six (06) months prior to the date of award of the contract to the firm.
(iii) Knowledge of Software Management Life Cycle and Software Testing viz unit testing, system testing & Integration Testing, etc.
(iv) Knowledge & hands-on experience of PHP & My SQL is a must. Additional knowledge of Post GreSQL, Typescript & Lit element, Java with Hibernate and Springs, SQL Server, Apache Tom Cat Server & relevant open-source technologies is required.
(v) Individuals must have hands-on experience in server operating systems viz Windows Server OS and RHEL. Knowledge of security concepts of web applications & Networking for undertaking necessary troubleshooting wrt applications accessibility.
(vi) Knowledge of Mobile Application Development
Key Responsibility Areas:
- Creation of new Course No, Term, and Term type at the beginning of each term. All associated Database tables and software procedures and functions are updated and recompiled.
- Management of Data Entry and Information access right to various users.
- AMC includes bug fixing, updating of application for any small policy changes.
- Regular Patch/update installation and coordinating with MIS team for identification and resolution of issues wrt application functioning and deployment
- Implementation of Cyber security policies and hardening of application
- Development of New functionalities in the application
- Regular Testing of running application functionalities and undertaking unit and integration testing of newly developed components.
- Support for making changes in the NDA internet web portal.
- AMC includes backing up of software, and database and storing it in other locations every week
- Online Multimedia Management System
- Software Wise Charter of Duties
- Cadet Suggestion/ Complaint Management System
What you will do?
Project Management
- Work with the product management team to create an engineering roadmap that aligns with the product roadmap.
- Translate engineering roadmap into executable internal projects, and own the end-to-end execution of these projects.
- Plan, execute and deliver projects as per schedule, content, and quality metrics.
- Manage the day-to-day activities of the engineering team using Agile practices.
- Keep stakeholders continually updated on the progress of projects and operations.
- Track and report engineering health metrics (such as bugs by severity, production incidents etc.)
People Management
- Hire and mentor a team of engineers
- Manage learning and development, and performance of your team.
- Own, Conceptualize and Build a tech-focused team
Technical Work
- Core stakeholder to all technical design and architecture of team.
- Review code, test plans, and deployment plans.
- Focus and Strengthen all aspects of reliability
What we look for?
Must Haves
- Experience in telecom messaging software systems.
- Experience in distributed and scalable systems.
- Communication skills - excellent written and oral communication to present complex ideas/concepts in a clear and concise manner; communicating with key stakeholders with work/project progress.
Good to Have
- Experience in telecom messaging software systems.
- Experience in distributed and scalable systems.
- Communication skills - excellent written and oral communication to present complex ideas/concepts in a clear and concise manner; communicating with key stakeholders with work/project progress
- 2-5 years of experience in building API services using NodeJS Express and related
frameworks
- Expert level understanding of NodeJS asynchronous runtime
- Expert level understanding of Javascript concepts on callbacks and closures
- Experience with Postgres, NoSQL, Redis, and Firebase real-time database
- Experience with AWS services like Elastic Beanstalk, Cloudfront, S3, EC2, Lambda,
API Gateway, SQS, etc
- Understanding of patterns and techniques for building scalable back-end
infrastructure including caching, rate limiting, authentication, and authorization
schemes.
- Experience in building highly scalable and high throughput services with
millisecond response times
- Experience working in a collaborative team environment
- Excellent communication & interpersonal skills
- Willingness to learn and pick up new technology along with patience to mentor
Bonus skills -
- Experience with ElasticSearch, Puppeteer
- Experience writing unit tests
Role- Node.js Developer
Job description:
- Nodejs), MySQL, Postgre SQL
- Working experience of GIT
- Will prefer candidates preferred who have knowledge of GraphQL, Typescript
- Well versed and experienced with unit testing, code coverage.
- Well versed with SOILD design principles and its application
- Good to have – some experience with Azure devops and/or azure functions.
- Good knowledge of designing and writing restful API
• Strong leadership skills; 3 years experience leading development teams.
• Experience architecting technical designs based on functional and business requirements.
• Project Management skills
• Exceptional communication skills, verbal and written
• Should be able
• To produce high quality technical documentation for our customers
• To decompose technical tasks and provide accurate estimates
• To coach less experienced members of your team
• To undertake development tasks without supervision, including software designing, programming and Unit testing
• To monitor progress and provide updates to the Project Manager












