
Senior Backend Developer
at Fast-growing startup that serving retail industry

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About the Role
We are looking for enthusiastic Backend Developer Interns to join our team remotely for a 3-month internship. This is an excellent opportunity to gain hands-on experience in backend development, work on real projects, and expand your technical skills. While this is an unpaid internship, interns who successfully complete the program will receive a Completion Certificate and a Letter of Recommendation.
Responsibilities
- Assist in developing and maintaining backend services and APIs.
- Work with databases (SQL/NoSQL) for data storage and retrieval.
- Collaborate with frontend developers to integrate user-facing elements with server-side logic.
- Write clean, efficient, and reusable code.
- Debug, troubleshoot, and optimize backend performance.
- Participate in code reviews and team discussions.
- Document technical processes and contributions.
Requirements
- Basic knowledge of at least one backend language/framework (Node.js, Python/Django/Flask, Java/Spring Boot, or similar).
- Understanding of RESTful APIs and web services.
- Familiarity with relational and/or NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Knowledge of Git/GitHub for version control.
- Strong problem-solving and analytical skills.
- Ability to work independently in a remote environment.
- Good communication skills and eagerness to learn.
What You’ll Gain
- Real-world experience in backend development.
- Mentorship and exposure to industry practices.
- Completion Certificate at the end of the internship.
- Letter of Recommendation based on performance.
- Opportunity to strengthen your portfolio with live projects.
Internship Details
- Duration: 3 months
- Location: Remote (Work from Home)
- Stipend: Unpaid
- Perks: Completion Certificate + Letter of Recommendation
Experience: 8-12 years
Location: Bangalore
Wissen Technology is now hiring for a Senior Java Developer - Bangalore 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 consulting.
Required Skills:
- Exp. - 8-12 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Experience: 3-7 Years
Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)
Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)
Roles and Responsibilities:
- Must have experience in Microservice architecture with the ability to collaborate effectively with team members and build positive working relationships.
- Design and build and deploy APIs to meet business requirements.
- High level of commitment to business satisfaction and agility.
- Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
- Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
- Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
- Work in an agile environment to deliver high-quality solutions.
- Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
- Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)
Title: Senior Java Developer
Top Skills: Java , Spring boot, Microservices, MYSQL, PL/SQL, NoSQL
Work Mode:- Full time
Location:- Teynampet, Chennai, Tamil Nadu
Employer: Innovating digital experiences with cutting-edge technology, design, and user-focused solutions for global brands
We are seeking a highly skilled and experienced Sr. Java Developer with a proven track record in
delivering high-quality applications. If you're passionate about building modern, scalable, and
robust software solutions, we want to hear from you!
Required Qualifications
7+ years of software development experience with a focus on delivering robust and
efficient solutions.
Strong proficiency in Java and its latest versions and expertise in developing
Java-based applications.
Hands-on experience with relational databases and proficiency in writing complex SQL
queries.
Familiarity with Enterprise Java (J2EE / Java EE / Spring) application architectures.
Demonstrated history of delivering modern, high-cadence applications using:
Agile methodologies and test-driven development (TDD).
CI/CD pipelines for streamlined deployment and updates.
Git version control for collaborative development.
Job Description
Java Developer Transformational Product Experiences .
Preferred Skills
Knowledge of microservices architectures and Domain-Driven Design (DDD).
Working knowledge of Python and JavaScript/Node.js.
Experience with Object-Relational Mappers (ORMs) such as Hibernate or JPA.
Strong Problem Solving skills
Bonus Skills
Exposure to emerging Generative AI technologies and tools like OpenAI APIs and GPT
large language models (LLMs).
Practical experience with MongoDB or other NoSQL, MySQL databases.
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large-scale social or location-based app.
Are you a high-performing, collaborative, results-oriented and technologically savvy person who is keen on sales in the digital industry? Then this highly visible role is for you!
Our client is the Health-tech initiative of India's largest business house. Started in 2015, it empowers healthcare providers and consumers in India. All healthcare monitoring services are made available through an app that will help connect doctors, hospitals, pharmacies, laboratories, and consumers, enabling preventive and predictive healthcare. It helps the care-givers to track the entire patient journey from the initial appointment and maintaining their records, generating lab test reports to providing virtual consultation and home-care solutions. It is expected that this futuristic guide will strengthen the doctor-patient relationship and enhance the in-clinic experience.
As the Sr. Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot-based programs, and data analytics
What you will do:
- Building components for the companys advanced health-tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively
What you need to have:
- Education: B.Tech with Min. 65% marks
- Expert at hands-on programming in JAVA and J2EE
- Proven expertise in Java interfaces with MongoDB (or similar NoSQL databases) as well as relational databases (MySQL, Postgres, etc)
- Key contributor in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven-based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Proficient understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest APIs, Webservices
- Excellent problem-solving skills
Desired Attributes
- Hands-on experience with Lucene/Solr
- Familiarity with DiagFlow based chatbot building
- Knowledge of NLP
- Learned AI/ML systems
- Excellent interpersonal skills and the ability to build good working relationships.
- Must be self-motivated to prioritize and manage workload and meet critical project milestones and deadlines.
- Able to effectively collaborate with a team as well as take initiative and work independently to solve problems
Basic Qualifications:
- 2+ years of non-internship professional software development experience
- Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
- 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
Additional Job requirements
- BS/MS/PhD in Computer Science/Math or equivalent
- BS in computer science or related field.
- 2+ years of relevant professional software development experience: designing, developing, and delivering software written in Java, C#, or C++, web development.
- Knowledgeable in object-oriented design patterns.
- Experience building highly scalable and distributed systems
Preferred Qualifications
- Experience with service-oriented architecture and application/services development
- Passion for performance debugging and benchmarking
- Ability to clearly and concisely communicate with technical and non-technical stakeholders across all levels of the organization
- Design and develop highly scalable, reliable and fault-tolerant systems for one of India's fastest-growing product startup
- Translate business requirements into scalable and extensible design.
- Pair with team members on functional and non-functional requirements and spread design philosophy and goals across the team.
- Partner with the product management team to define and execute the feature roadmap.
- Coordinate with cross-functional teams (Mobile, DevOps, Data, UX, QA, etc.) on planning and execution.
- Continuously improve code quality, product execution, and customer delight.
- Proactively manage stakeholder communication related to deliverables, risks, charges, and dependencies.
- Communicate, collaborate and work effectively across distributed teams
- An innate desire to deliver and a strong sense of accountability for your work.
- Willingness to learn new languages and methodologies.
- Passion for learning new things, solving challenging problems.
Requirements:
- 3+ years of experience in software development or a serious open source track record
- 2+ years of hands-on experience in designing, developing, testing and deploying large scale applications in any language or stack
- Proficiency in OOP concepts, including design patterns. Experience with functional programming is a plus.
- Data modelling experience in both Relational and NoSQL databases.
- Ability to understand and implement Continuous Integration and Continuous Delivery.
- Well versed with Lean methodologies, and Test Engineering and Automation.- Ability to design and implement low latency RESTful services.
- Experience in troubleshooting server performance memory issues, GC tuning, resource leaks, etc.
- Continuously refactor applications and architectures to maintain high-quality levels.
- Ability to scope, review and refine user stories for technical completeness and to alleviate dependency risks.
- We primarily use Node JS, MongoDB, AngularJS & AWS
**About VComply :**
- VComply is a fast-growing SaaS GRC (Governance, Risk and Compliance) platform that helps organizations manage their compliance controls and risk in an intuitive manner. VComply brings a contextual understanding of GRC to compliance officers enabling them to achieve organization objectives while maintaining the integrity and managing risk.
- VComply was founded in 2019 and is backed by Accel. We already have 25+ marquee customers across North America and Australia & New Zealand in our short existence. We provide organizations with configurable, yet plug and play GRC applications that need zero development effort and infrastructure.
**Why VComply :**
- Opportunity to have direct impact on the growth of a fast growing & dynamic company
- Challenging work environment with End- to-end ownership of your role
- Incredible growth opportunities - we are a meritocracy, and the best will always have room for growth in the company
- Opportunity to work directly with senior leadership
- Accelerated learning environment with a high performing team surrounding you
- Culture that promotes challenging oneself & continuous improvement.
- Perks & Employee friendly policies.
This includes working on:
a) The main Django application, a large, modern, Django app built using Python 3.8 and the latest Python and Django libraries;
b) The API, built using Django Rest Framework (DRF) that is used both by our web-app and client libraries to build and run data analyses;
c) Backend code that integrates our web server with the rest of our cloud architecture, including our PaaS, data science code, general integrations such as payments, devops code, and more.
Ideally, you should have experience working on Django codebases which serve both server-side rendered pages and APIs via DRF. Frontend/full-stack knowledge is a an advantage but not essential. Familiarity with modern development practices, such as CI/CD, testing, DevOps, Docker, Linux and git would be a big plus. You must have very strong familiarity with Python development, and be excited to pick up the new technologies and skills - for instance we use Python type-hints across our codebase extensively.
You should like the idea of releasing to real customers regularly, and prioritise getting a great product into users’ hands for feedback and iteration. You will have extensive scope to build and architect the backend, and to help grow the team in the future.












