
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 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 : 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.
Exp - 2 to 4 Yrs
Location - Viman Nagar, Pune, (WFO)
Skills - Java+Spring Boot
Budget - 50 to 70K PM
● Design and deliver scalable web services, APIs, and backend data modules.
Understand requirements and develop reusable code using design patterns &
component architecture and write unit test cases.
● Collaborate with product management and engineering teams to elicit &
understand their requirements & challenges and develop potential solutions
● Stay current with the latest tools, technology ideas, and methodologies; share
knowledge by clearly articulating results and ideas to key decision-makers.
Requirements
● 3-6 years of strong experience in developing highly scalable backend and
middle tier. BS/MS in Computer Science or equivalent from premier institutes
Strong in problem-solving, data structures, and algorithm design. Strong
experience in system architecture, Web services development, highly scalable
distributed applications.
● Good in large data systems such as Hadoop, Map Reduce, NoSQL Cassandra, etc.. Fluency in Java, Spring, Hibernate, J2EE, REST Services Ability to deliver code
quickly from given scenarios in a fast-paced start-up environment.
● Attention to detail. Strong communication and collaboration skills.
If yes! then join us @ Equal Experts.
Equal Experts does not work on support & maintenance projects.
It creates enterprise software applications & products for its global clients from scratch.
Things you will NOT get at Equal Experts:
Fancy designation - You will be called a Software Engineer here, regardless of your experience or expertise.
▪ Projects in only 1 language - Today you might code in Java, tomorrow in
Groovy, the day after in Scala... :-). At Equal Experts, we work on diverse tech stacks, and you simply have to be a polyglot.
▪ "Management" role - We don't hire dedicated PMs, IMs, DMs ...or any other Ms out there.
▪ If you are part of Equal Experts, you are a techie who will code every day.
Here's what else you can look forward to:
▪ Freedom - Freedom to explore new technologies & implement them on
projects.
▪ Responsibility & ownership - Writing elegant code every day. Taking design & architectural decisions.
▪ Agile expertise - TDD, BDD, XP practices. Working with experts & thoughtleaders in Agile.
▪ Cutting edge - Work on Ruby, Scala, Hadoop, MongoDB, Neo4j, Groovy,
J2EE, iOS 6, Angular JS, Cucumber and the likes.
▪ Consulting exposure - Interact with clients every day. Travel onsite
frequently.
▪ Open culture - No hierarchy. No cubicles. No formal dress codes.
Here's what you must possess:
Exceptional OOP skills - Solid, Grasp, Kiss and Dry should mean more than words to you. Your daily code must be clean, simple, modular, extensible, and always thoroughly unit tested.
▪ Conceptual understanding of whatever you've worked on - We're more
interested in knowing how & why you used a particular technology/approach to solve a problem. Definitions and theory don't interest us that much.
▪ Decision-making experience - We need you to start new projects from scratch.
Accordingly, you must have the experience of taking design decisions &
influencing architecture on projects
About Wise
Wise is digital infrastructure for online education. Oversimplified as ‘Shopify for Tutors’ i.e., an easy to use tool for tutors to start teaching online. We have grown to 2mn users in 12 months and have much to do. We are backed by an incredible set of investors and individuals who have built product you already use. We have a small but rockstar team, cheap equity, smart money, opportunity to capture a huge market ($60bn) and a chance to make an impact while doing so.
What we need
We need you, if you are a senior software engineer with 4+ years of experience in building robust scalable systems. Work would involve building things quickly and adapting based on market feedback while ensuring the security and quality of the codebase. If you love coding and building things excites you, we would like to talk to you.
What you will need (Skills)
- Experience building microservices and distributed systems, RESTful APIs, user interfaces
- Knowledge and will of writing unit, integration tests is a must. TDD is a plus
- Preferably a polyglot: Strong command Ruby/Golang/Java/Python
- Some exposure to infra: Deployments, CI/CD setup, security. AWS exposure is good to have
- Strong database concepts. Experience with MongoDB is a plus
What you will do
- Feature analysis, hands on development, code reviews, deployment & rollouts
- Passionately maintain coding practices, quality & good design standards
- Design and develop highly scalable, available, secure and fault tolerant systems
- Actively contribute in assessing & improving/optimizing security & infrastructure
Great to have
- Sense of ownership
- Developers who can talk product and strategy
- Experience in building scalable consumer products
- Strong opinions, loosely held
Good to have
- Interest in mentorship
- Good written communication skills
- Bangalore love
Probably not ideal if
- If you have always been right about stuff in life
- No flexibility around working hours (this doesn’t mean we work long hours but if our systems get attacked in the middle of the night, we would need you to HODORR!)
Definitely get in touch if you
- Would have started the exact same company but willing to build it together with a great team
- Find our current product unbearably slow or inadequate
- Think this company isn’t going to work as it is right now
Roles & Responsibilities:
- Excellent problem-solving & analytical skills & OO principles
- Solid understanding of the data structure & algorithms.
- Expert knowledge with any one of the Javascript Framework such as Node Js.
- Any additional experience with Java or python, GoLang would be nice to have.
- Experience working with SQL database like MySQL or PostgreSQL
- Experience working with NoSQL databases like mongoDB, couchbase would be nice to have
- Working experience with cache like redis, mem cached or elasticache would be nice to have
- Working experience with Message Queues would be a great advantage.
- Experience with deployment & AWS would be nice to have
- Ability to do in depth analysis or problem statement or use case & Build robust & scalable architecture
- Logging & monitoring of the production system in real time
- Lead a team of 2-4 team members & make sure team practices defined coding practices across the project.
-
Bachelor’s or master’s degree in Computer Engineering, Computer Science, Computer Applications, Mathematics, Statistics, or related technical field. Relevant experience of at least 3 years in lieu of above if from a different stream of education.
-
Well-versed in and 3+ hands-on demonstrable experience with: ▪ Stream & Batch Big Data Pipeline Processing using Apache Spark and/or Apache Flink.
▪ Distributed Cloud Native Computing including Server less Functions
▪ Relational, Object Store, Document, Graph, etc. Database Design & Implementation
▪ Micro services Architecture, API Modeling, Design, & Programming -
3+ years of hands-on development experience in Apache Spark using Scala and/or Java.
-
Ability to write executable code for Services using Spark RDD, Spark SQL, Structured Streaming, Spark MLLib, etc. with deep technical understanding of Spark Processing Framework.
-
In-depth knowledge of standard programming languages such as Scala and/or Java.
-
3+ years of hands-on development experience in one or more libraries & frameworks such as Apache Kafka, Akka, Apache Storm, Apache Nifi, Zookeeper, Hadoop ecosystem (i.e., HDFS, YARN, MapReduce, Oozie & Hive), etc.; extra points if you can demonstrate your knowledge with working examples.
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3+ years of hands-on development experience in one or more Relational and NoSQL datastores such as PostgreSQL, Cassandra, HBase, MongoDB, DynamoDB, Elastic Search, Neo4J, etc.
-
Practical knowledge of distributed systems involving partitioning, bucketing, CAP theorem, replication, horizontal scaling, etc.
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Passion for distilling large volumes of data, analyze performance, scalability, and capacity performance issues in Big Data Platforms.
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Ability to clearly distinguish system and Spark Job performances and perform spark performance tuning and resource optimization.
-
Perform benchmarking/stress tests and document the best practices for different applications.
-
Proactively work with tenants on improving the overall performance and ensure the system is resilient, and scalable.
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Good understanding of Virtualization & Containerization; must demonstrate experience in technologies such as Kubernetes, Istio, Docker, OpenShift, Anthos, Oracle VirtualBox, Vagrant, etc.
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Well-versed with demonstrable working experience with API Management, API Gateway, Service Mesh, Identity & Access Management, Data Protection & Encryption.
Hands-on experience with demonstrable working experience with DevOps tools and platforms viz., Jira, GIT, Jenkins, Code Quality & Security Plugins, Maven, Artifactory, Terraform, Ansible/Chef/Puppet, Spinnaker, etc.
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Well-versed in AWS and/or Azure or and/or Google Cloud; must demonstrate experience in at least FIVE (5) services offered under AWS and/or Azure or and/or Google Cloud in any categories: Compute or Storage, Database, Networking & Content Delivery, Management & Governance, Analytics, Security, Identity, & Compliance (or) equivalent demonstrable Cloud Platform experience.
-
Good understanding of Storage, Networks and Storage Networking basics which will enable you to work in a Cloud environment.
-
Good understanding of Network, Data, and Application Security basics which will enable you to work in a Cloud as well as Business Applications / API services environment.
Designation - Senior Java Developer
Experience - 4+ Years required
-Proven working experience in Java Spring Boot framework
-Proven working experience in Java development
-Proven hands-on Software Development experience
-Experience in Spring boot micro services
-Experience working with tools like Git, Maven,SVN.
-Expertise developing enterprise-level web applications and RESTful APIs using Spring boot, with demonstrable production-scale experience.
- Working experience in Industry Standard protocols related API Security including OAuth is a must.
- Demonstrate strong design and programming skills using JSON, Web Services.
- Working knowledge with SQL Server databases.
- Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.
- Strong agile/scrum development experience
- Strong collaboration and communication skills within distributed project teams
- Excellent written and verbal communication skills
Skill Required – Core Java, Java 8 Feature, Spring Core, Spring boot , Spring Data JPA, Hibernate..Etc








