
- 5+ years of experience
- FlaskAPI, RestAPI development experience
- Proficiency in Python programming.
- Basic knowledge of front-end development.
- Basic knowledge of Data manipulation and analysis libraries
- Code versioning and collaboration. (Git)
- Knowledge for Libraries for extracting data from websites.
- Knowledge of SQL and NoSQL databases
- Familiarity with RESTful APIs
- Familiarity with Cloud (Azure /AWS) technologies

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Job Title : Senior Java Developer
Experience : 5 to 12 Years
Shift Timing : 01:00 PM – 10:00 PM
Domain : Clinical Research
Location : Noida, Gurugram & Pune
Work Mode : Hybrid
Job Summary :
We are seeking an experienced Senior Java Developer to join the software team of a leading Clinical Research organization.
The role involves application development and feature enhancement for enterprise products, ensuring high performance, scalability, and code quality.
Mandatory Skills :
Java 8+, Hibernate, Oracle Database, PostgreSQL, JAX-RS (RestEasy), Jackson, REST APIs, JSP, React.js, GitHub, GitHub Actions, SonarQube, SonarLint, and basic AWS services (IAM, SNS, SQS, S3, CloudWatch).
Key Responsibilities :
- Develop and enhance enterprise applications using Java technologies.
- Design and implement RESTful APIs and integrate backend services.
- Write and optimize SQL queries for Oracle and PostgreSQL databases.
- Build and maintain UI components using JSP and React.js.
- Manage source code and CI/CD pipelines using GitHub and GitHub Actions.
- Ensure code quality and maintainability using SonarQube and SonarLint.
- Work with AWS services to support application deployment and monitoring.
- Collaborate with cross-functional teams to deliver high-quality solutions.
Required Skills :
- Strong experience with Java 8 or above and Hibernate framework.
- Hands-on experience with Oracle Database and PostgreSQL, including advanced query writing.
- Proficiency in JAX-RS (RestEasy) and Jackson for REST API and JSON processing.
- Experience in developing web applications using JSP.
- Knowledge of React.js for frontend development.
- Experience with GitHub and GitHub Actions for version control and CI/CD.
- Familiarity with SonarQube and SonarLint for code quality analysis.
- Basic hands-on experience with AWS services, including IAM, SNS, SQS, S3, and CloudWatch.
- Ability to work effectively in a collaborative and fast-paced environment.
Junior PHP Developer (Full-Time)
Malad, Mumbai (Mindspace) | Work from Office
We’re hiring a Junior PHP Developer at Websites.co.in, a platform where small businesses create their website in 2 minutes.
Your role
- Develop and maintain backend logic using PHP (Laravel or Core PHP)
- Write clean, reusable, and efficient code
- Work with MySQL databases (queries, joins, optimization)
- Integrate REST APIs and troubleshoot backend issues
- Collaborate with frontend, QA, and product teams for feature implementation
- Participate in code reviews, testing, and deployment activities
- Debug production issues and provide quick fixes
What we expect
- Hands-on development experience with PHP (mandatory)
- Strong knowledge of MySQL, queries, and database structures
- Understanding of MVC architecture (Laravel preferred)
- Basic knowledge of HTML, CSS, JavaScript
- Familiarity with Git version control
- Problem-solving mindset and willingness to take ownership
- 0–3.5 years of experience (freshers with strong projects are welcome)
Good to have
- Experience working with APIs, JSON, cURL
- Understanding of server basics (Linux, Apache, hosting environments)
What you get
- Real product ownership, not agency project hopping
- Direct collaboration with CTO and senior devs
- Steep learning curve in a fast-moving SaaS environment
Job Description:
Candidate must have 2 to 5-years of experience in various phase of development of a python-based application or API development.
Requirements:
Must Have: Strong expertise in PYTHON and its built-in data structures, developing API using flask or fastapi, data wrangling using standard python frameworks like pandas, NumPy etc., integration of various applications (third party or inhouse) with python.
Good to Have: Deployment using Nginx, GUnicorn, IIS, docker and Kubernetes etc. Good understanding of optimization solutions like differential evolution. Hands on experience with python packages like Scipy. Tkinter to make python-based applications.
Roles and Responsibilities:
- Understanding/gathering the requirements from stakeholder, formulating the problem, and leveraging AI/ML to solve the business problems.
- Integration of third party or in house application with python solution.
- Working on Deployment and optimization of various engineering problems using Numerical/Constraint optimization frameworks such as Differential Evolution and deploy a web-based API using Flask and Nginx/IIS.
- Unit testing of various python modules developed and testing of the API.
About Klevu:
Klevu is a discovery experience suite that revolutionises online shopping. It provides a range of SaaS based solutions, that are deep rooted in AI-ML technology and delivered via cloud for online retailers. Klevu is a global Finnish company that prides in diversity, great team, excellent partner network and global customer footprint. Learn more from www.klevu.com
Experience: 5+ years
Location: Ahmedabad, Gujarat
Responsibilities:
- Build, scale and maintain various services on the Klevu platform
- Design and develop solutions for business needs on the Klevu platform
Must have skills:
- 4+ years on experience with Java
- Experience in Web application development on Spring framework
- Experience working with database technologies – RDBMS or NoSQL
- Ability to communicate effectively within and outside the engineering team
- Familiar with agile software development process
Nice to haves:
- Experience in Hibernate, MySql, Redis, ActiveMQ or Kafka
- Experience in UI Frameworks like Jquery, React, Angular or equivalent
- Experience in REST API development
- Experience in debugging issues and checking production logs
- Experience working in eCommerce and/or SAAS startups
- Experience working with microservices architecture
What we offer:
- Being part of one of the most exciting search technology company from Nordics with global footprints
- Work with a team in 3 continents (North America, Europe, Asia)
- Excellent work culture, hands-on, result oriented
- Good salary and flexible hours
- You have 3+ years of experience using Golang/ Go Programming development language.
- You can write clean, high-quality code in a variety of languages and are also able to spot (and improve) bad code
- You have experience with Agile, Lean and/or Continuous Delivery approaches such as Continuous Integration, TDD, Infrastructure as Code, etc.
- Bonus points if you have knowledge of cloud technology such as AWS, Docker or Kubernetes
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
India's first platform to democratise access to dream jobs for all eligible aspirants
irrespective of their college, degree or network. By taking the Relevel Test, they engage in
comprehensive skill assessments, which evaluate industry relevant skills and their
job-readiness. Our evaluation is purely objective-based in conjunction with current best
practices in the industry.
We offer the excitement of an early stage startup coupled with the stability of a unicorn like
Unacademy which is a market leader in the Ed-Tech space. At Relevel, we truly value
ownership and accountability as opposed to the pedigree and background of the applicants.
We are looking at folks who are willing to learn and grow along with us in our fast paced
growth journey of going global.
If you believe in our mission of offering job seekers a fair shot at realising their dreams, we're the right place for you!
Engineering
● We use cutting edge technologies to build our products which means you get to be
updated on the latest tech stack.
● You don’t need to have experience in any of our specific technologies;we are good at
teaching our Engineers. Our diverse group of Engineers are a great team to work
with and to learn.
● We deploy changes to production multiple times a day.
● Blameless culture and a continuous learning mindset
What engineers do at the company
● Making a global platform with the scale of millions of users.
● Working directly with designers and PMs to make a world class test taking
experience.
● Building a platform for companies and writing an ML based algorithm to match
candidates and companies.
● Building an Ed-Tech product for the upskilling of candidates.
What you need to bring
● Expertise in backend frameworks/technologies like Python/Django, Golang,
Postgres, Redshift, and AWS.
● Solid coding and problem-solving skills with the ability to architect cross-team
features to refactor existing frameworks. Familiarity with design patterns is a must
too.
● The ideal person has worked on a product that they were able to drive to production
in a startup environment.
● Proficiency in building highly scalable systems
● Ownership mindset- Taking end to end ownership of backend initiatives and being
part of the core team in driving the overall growth of the organization in achieving its
vision.
Why do you want to work
● All fixed compensation structure, No variable component
● Medical insurance for you and your family
● Practo Subscription for unlimited online doctor consultation
● Ultrahuman subscription
● ESOP earning capacity every quarter
● Office pantry with food and beverage of your choice
● Cab facility post 8 pm
● Certifications/Upskilling opportunities
● Opportunity to attend and speak in conferences
● Flexible working hours including remote work option
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- In-depth knowledge of relational and NoSQL databases.
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- Experience using Redis, Memcached or any other caching system
- Experience working with message brokers– preferably RabbitMQ
- Experience with infrastructure automation technologies like Docker, Kubernetes.
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