
Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai
Experience - 4 to 10 years
Kindly revert over mail if you are interested.
Java Developer – Job Description
We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.
Key Responsibilities
- Design and develop robust backend services and APIs primarily using Java (Spring Boot)
- Contribute to Python-based components where needed for automation, scripting, or lightweight services
- Build, integrate, and optimize RESTful APIs and microservices
- Work with relational and NoSQL databases
- Write unit and integration tests (JUnit, PyTest)
- Collaborate closely with DevOps, QA, and product teams
- Participate in architecture reviews and design discussions
- Help maintain code quality, organization, and automation
Required Skills & Qualifications
- 4 to 10 years of hands-on Java development experience
- Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
- At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
- Familiarity with Python frameworks like Flask or FastAPI is a plus
- Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
- Good understanding of OOP, design patterns, and software engineering best practices
- Familiarity with Docker, Git, and CI/CD pipelines

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.
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This product is a 3d simulation software, to replicate rooftops/commercial sites, place solar panels and generate the estimation of solar energy.
What are we looking for?
· As a backend developer you will be responsible for developing solutions that will enable Arka solutions to be easily adopted by customers.
· Attention to detail and willingness to learn is a big part of this position.
· Commitment to problem solving, and innovative design approaches are important.
Role and responsibilities
● Develop cloud-based Python Django software products
● Working closely with UX and Front-end Developers
● Participating in architectural, design and product discussions Designing and creating RESTful APIs for internal and partner consumption
● Working in an agile environment with an excellent team of engineers
● Own/maintain code everything from development to fixing bugs/issues.
● Deliver clean, reusable high-quality code
● Facilitate problem diagnosis and resolution for issues reported by Customers
● Deliver to schedule and timelines based on an Agile/Scrum-based approach
● Develop new features and ideas to make product better and user centric.
● Must be able to independently write code and test major features, as well as work jointly with other team members to deliver complex changes
● Create algorithms from scratch and implement them in the software.
● Code Review, End to End Unit Testing.
● Guiding and monitoring Junior Engineers.
SKILL REQUIREMENTS
● Solid database skills in a relational database (i.e. PostgresSQL, MySQL, etc.) Knowledge of how to build and use with RESTful APIs
● Strong knowledge of version control (i.e. git, svn, etc.)
● Experience deploying Python applications into production
● Azure or Google cloud infrastructure knowledge is a plus
● Strong drive to learn new technologies
● Ability to learn new technologies quickly
● Continuous look-out for new and creative solutions to implement new features or improve old ones
● Data Structures, Algorithms, Django and Python
Good To have
· Knowledge on GenAI Applications.
Key Benefits
· Competitive development environment
· Engagement into full scale systems development
· Competitive Salary
· Flexible working environment
· Equity in an early-stage start-up
· Patent Filing Bonuses
· Health Insurance for Employee + Family
Job Overview:
We are looking for a seasoned Senior Backend Engineer (SDE III) with over 5 years of experience to lead, mentor, and grow a high-performing engineering team. The ideal candidate will have extensive hands-on experience in software development, deep technical expertise, and a proven track record of successfully leading large-scale engineering teams and projects. This role requires strategic leadership, the ability to manage complex technical challenges, and the ability to drive innovation while ensuring operational excellence.As a Backend Lead, you will collaborate with key stakeholders across the business, product management, and operations to ensure alignment with the organization’s goals and play a critical role in shaping the technology roadmap and engineering culture.
Key Responsibilities:
- Leadership and Team Development: Lead and inspire a team of engineers, fostering a culture of innovation, accountability, and continuous improvement. Manage the hiring, training, and career development of engineering staff.
- Strategic Planning: Work closely with senior leadership to develop and implement engineering strategies that support business objectives. Define technology roadmaps and ensure alignment with organizational goals.
- Technical Excellence: Guide the team in designing and implementing scalable, robust software systems. Drive the adoption of best practices in architecture, coding standards, and software testing to ensure high-quality product delivery.
- Project and Program Management: Oversee the successful delivery of engineering projects, ensuring deadlines, quality standards, and budget constraints are met. Use agile methodologies to manage the development process and resolve bottlenecks.
- Cross-functional collaboration: Collaborate with Product Management, Design, Business, and Operations teams to define project requirements and deliverables. Ensure the smooth integration of engineering efforts across the organization.
- Risk Management: Anticipate and mitigate technical risks and roadblocks. Proactively identify areas of technical debt and drive initiatives to reduce it.
- Stakeholder Communication: Act as the technical point of contact for stakeholders, providing regular updates on project progress, resource allocation, and performance metrics. Communicate complex technical concepts to non-technical stakeholders.
Required Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
- 5+ years of experience in software engineering
- Proven track record of successfully delivering large-scale, high-impact software projects.
- Strong understanding of software architecture, design patterns, and scalable system design.
- Expertise in multiple programming languages and modern development frameworks For this role we require expertise in Python/Django and API Development
- Experience with cloud infrastructure (AWS), microservices, and distributed systems.
- Good experience with MySQL and ElasticSearch. Slight experience with other NoSQL and SQL databases.
- Experience in DevOps, CI/CD pipelines, and infrastructure automation.
- Experience in delivering full-stack B2B/SaaS applications including mobile applications, web frontend, and a scalable backend.
- Excellent problem-solving skills, with the ability to diagnose and resolve complex technical challenges.
- Strong communication and interpersonal skills, with the ability to influence and inspire teams and stakeholders at all levels.
Wissen Technology is hiring for Java Tech lead
Required:
- 8-10 years of industrial experience
- Java and related frameworks.
- Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
- Exposure on Fintech domain is mandatory
- Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS
- Good knowledge of multi-threading and high volume server side development
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
Company Profile:
Company Name : Wissen Technology
Group of companies in India : Wissen Technology & Wissen Infotech
Work Location - Bangalore
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology
Responsibilities
Drive new feature development - from ideation to PoC to testing to scalable production deployments
Writing reusable, testable, and efficient code
Implementing highly scalable, secure, robust, and fault-tolerant systems
Working on continuously improving tools and systems Required Skills
Knowledge of relational databases (MySQL, Postgres) and NoSQL
Demonstrable experience with microservices (design, deployment, monitoring, etc.)
Strong proponent for best practices and code quality
Experience in architecting & building real-time, large scale software applications.
Excellent command over Data Structures and Algorithm Proficiency in implementation of algorithms and use of advanced data structures to solve problems in computing.
Bring software engineering and product delivery experience, with a strong background in algorithms.
Understanding fundamental design principles behind a scalable application.
Good communication skills
Strong Problem solving and analytical skills
Experience in Fintech Industry is a plus
About the company.
It is India's largest Corporate Employee Benefits Platform. Founded by alumni of UCLA, Amazon, and Microsoft. Our major verticals are Corporate Perks, Rewards & Recognition, and financial solutions. We are currently partnered with more than 250+ corporates, including Concentrix, RBS, Fidelity, Walmart, Amazon, etc., whose employees are offered exclusive privileges through our 10,000+ brand partners across categories It is leading the employee benefits market in India which pegged at $2 billion and growing.
At Primathon, we strive to deliver world-class software for our clients and empower our engineers to become full-stack in technology and provide them 360° experience. We are looking for champions in backend development with experience in NodeJs/Python. You would be working on NodeJs, Python, PostgreSQL, MongoDB, Redis Elastic search, RabbitMq, SQS, Docker, AWS.
Responsibilities and Duties
● Participate in agile software development, prototyping and code reviews
● As a backend engineer, you will work on backend services in Node JS, MongoDB, PostgreSQL, Redis.
● Design, implement and/or use RESTful web services
● Designing database schema
● Writing automation test cases
● Write testable, well-thought-out code within the ecosystem, embracing additional languages and frameworks when appropriate
Required Experience, Skills and Qualifications
● 1+ years of experience as a Backend developer.
● Experience designing, implementing and using RESTful Web Services with Service-Oriented Architecture.
● Knowledge & basic understanding of JavaScript frameworks like React, D3, etc and strong experience working with MVC.
● Solid understanding of version control principles, preferably using Git
● Experience using mocking frameworks, testing frameworks, dependency injection, NoSQL and/or relational databases
● Strong knowledge on how to navigate the vast and quickly evolving collection of open source projects and select the right tool for the job
● Attention to detail and the ability to build reliable, scalable, and flexible software.
Work Experience ** Minimum 2+Years
- 6-9 years of strong development skills in Java JDK 1.8 or above.
- Experience in developing micro services in Spring Boot or Node.js.
- Experience in security, transaction, Idempotency, log tracing, distributed caching, monitoring and containerization requirements of Micro services
- Experience in developing High Cohesion & Loosely Coupled Micro Services.
- Strong acumen in Data Structures, Algorithms, problem-solving and Logical/Analytical skills.
- Thorough understanding 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, Autoboxing, 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.)
- Hands-on experience with JMS
- Hands-on experience in creating RESTful webservices and consuming webservices
- Hands-on experience with Spring Boot and Spring cloud.
- 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.
Additional Information
- Gender-Neutral Policy
- 18 paid holidays throughout the year for NCR/BLR (22 For Mumbai)
- Generous parental leave and new parent transition program
- Flexible work arrangements
- Employee Assistance Programs to help you in wellness and well being
Vah Vah! is an ed-tech company that offers online makeup courses in micro-batches to students across India to learn from the leading teachers in top cities. We provide holistic education with lots of practical training that makes our students job-ready with not just the base skills but also the soft skills for great customer service. Our teachers have more than 15+ years of experience in training makeup and have certified more than 1000+ students. Vah Vah! is founded by executives with extensive experience running consumer business and mobile games at scale (over 100 million players) at Zynga. Vah Vah! is backed by a leading investment firm.
Website Link: https://vahvah.com/
The Mission
Vah Vah teaches professional makeup to budding makeup artists and influencers through live online classes. We have students from Srinagar, all the way to the Andamans. And experienced teachers who have worked in Bridal Makeup, Ramp Shoots, Film and more. We empower our students to join the workforce as fully trained makeup artists. This is the future of vocational education, and you can help build it.
Our Culture
- Amazing workplace and colleagues to work with
- We have the right mixture of creativity, analytics and hustle to move fast in the right direction.
- You will work with colleagues who don’t take themselves too seriously but move mountains.
- See yourself evolving every month with new problems to solve and new skill to master.
- Work with the smartest engineers so you can learn from them.
- Competitive salary at par with the best in the industry
- Great stock options so you can benefit from the company's growth.
- Immense exposure to new technologies
Responsibilities:
- Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
- Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
- Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members. Taking lead on projects, as needed.
Requirements:
- Overall experience of 2-5 years in building backend services using languages like NodeJs, Java etc
- Fluency or understanding of specific languages, such as Java, Node.Js, Python, and operating systems may be required.
- Strong understanding of the web development cycle and programming techniques and tools.
- Focus on efficiency, user experience, and process improvement.
- Strong problem solving and verbal and written communication skills.
- Ability to work independently or with a group.
- Sound knowledge on source control and DevOps
What you get:
- Amazing workplace and colleagues to work with
- Competitive salary at par with the best in the industry
- Immense exposure to new technologies
We are looking for talented engineers who are passionate about using software
engineering to make kids love to learn and redefine learning@home. You will
have an opportunity to work in a highly motivated fast paced environment in a fastest
growing Ed-Tech company. You will be building platforms and services to be used across
various products. You will have the opportunity to create significant impact on our
systems, our business and most importantly on the life of millions of our students as we
take on challenges that will reshape education industry. You will operate at the
intersection of diverse disciplines - Backend, Frontend, Big Data, ML, Computer vision
and various open source tech. You will build solutions for Byju’s learning Apps as well as
few upcoming products with huge market potential and are high on innovation.
We are looking for smart people with excellent coding skills and can-do attitude.
Candidates should be eager to learn, flexible to pivot when needed, savvy enough to
thrive in a dynamic environment and should possess a growth mindset.
Roles & Responsibilities
● Writes high quality code & unit tests, builds, tests as per agreed timelines
● Participates in technical design and provides estimation
● Owns one or more small to medium features
● Becomes a go-to person in at least one area
● Communicates clearly and gets clarification upfront to minimize rework. Knows when
to ask for help to unblock.
● Consistently follows and promotes SDLC best practices: Coding standard, testing,
code reviews, code comments etc.
● Exhibit strong problem solving skills, helps other developers and demonstrates
teamwork
Ideal Candidate Profile
● Understands detailed requirements and demonstrates excellent problem solving skills
● Deep understanding of software engineering practices, Design Patterns, Data
Structures, Algorithms
● Excellent programming skills in ROR, Golang, NodeJS, Python
● Strong communication skills
● Strong sense of ownership, drive and ability to deliver results
● A Bachelors or Masters degree in engineering from a reputed institute (preferably
IITs, NITs, or other top engineering institutes)
● Experience in Golang, RoR, Unity, ML or Python will be an added advantage
Requires a bachelor's degree in area of specialty and experience in the field or in a related area. Familiar with standard concepts, practices, and procedures within a particular field. Relies on experience and judgment to plan and accomplish goals. Performs a variety of tasks. A degree of creativity and latitude is required. Typically reports to a supervisor or manager.
Designs, develops, and implements web-based Java applications to support business requirements. Follows approved life cycle methodologies, creates design documents, and performs program coding and testing. Resolves technical issues through debugging, research, and investigation.
Additional Job Details:
Strong in Java, Spring, Spring Boot, REST and developing MicroServices.
Knowledge or experience , Cassandra preferred
Knowledge or experience on Kafka
Good to have but not must
Good to know:
Reporting tools like Splunk/Grafana
Protobuf
Python/Ruby











