Backend Developer

Experience: 5 TO 8

Location: MUMBAI

Wissen Technology is now hiring for a Java Developer - MUMBAI 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. - 5 TO 8 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.

You will be working hands-on on a complex and compound product that has the potential to be used by millions of sales and marketing people around the world. Your contribution to delivering an excellent product platform that:

• enables quick iteration
• supports product customization
• and handles scale

What do we expect you to have?

• 2+ years of experience in backend engineering
• An intent to learn and an urge to build a product by learning different technologies
• Interest in writing complex, scalable, and maintainable backend applications
• Tech stack requirements:

Must haves

• Experience in building application server in Java (Spring / Spring boot) / NodeJS / Golang / Python
• Experience in using SQL databases and designing schemas based on application need
• Experience with container services and runtimes (docker / docker-compose / k8s)
• Experience with cloud paas (AWS / GCP / Azure cloud)
• Experience and familiarity with microservices’ concepts
• Experience with bash scripting

Good to have (Preferred)

• Preferred experience with org wide message queue (rabbitmq / aws sqs)
• Preferred experience with task orchestration services (apache airflow / aws step function)
• Preferred experience with infra as code (or system configuration) tools (terraform / chef / ansible)
• Preferred experience with build essential tools (make / makefile)
• Preferred experience with monitoring and tracing systems for performance / system / application monitoring (grafana + loki + prometheus / aws cloudwatch)

What will you learn?

• Building highly available, complex, compound, performant systems of microservices platform that acts as an API layer
• Industry-standard state-of-the-art tools + methodologies + frameworks + infra for building a product.
• Fable is not a trivial CRUD app. It requires a lot of consideration and care for building the API layer as the product is highly customizable per user.
• How different functions (sales, marketing, product, engineering) in a high-velocity product company work in synergy to deliver an iterative product in real life.

Who would you be working with?

• You would be directly working with the co-founder & CTO who has built multiple companies before and has built large teams in large-scale companies like ThoughtSpot, Unacademy, etc.

Position details

• Fully remote.
• 5 days/week (all public and government holidays will be non-working days).
• No specific work hours (we will sync over zoom over the course of the day).

Job Title: Django Developer

Job Overview:

We are seeking a skilled Django developer to join our dynamic team. The ideal

candidate will have hands-on experience with the Django framework, proficiency in

Python, and a strong understanding of web development best practices. The Django

developer will be responsible for designing, implementing, testing, and maintaining

web applications that meet our clients; needs.

Responsibilities:

Design and develop robust, scalable, and secure web applications using the

Django framework.

Collaborate with cross-functional teams to define, design, and ship new

features.

Write clean, maintainable, and efficient code.

Integrate user-facing elements using HTML, CSS, and JavaScript. Implement

and maintain RESTful APIs.

Collaborate with front-end developers to integrate user-facing elements with

server-side logic.

Work with databases, including designing schemas, writing queries, and

optimising performance.

Troubleshoot, debug, and resolve issues in the development and production

environments.

Stay up-to-date with the latest industry trends, technologies, and best

practices.

Participate in code reviews and provide constructive feedback to peers.

Requirements:

Proven experience as a Django developer or similar role.

Strong understanding of Python and the Django web framework.

Experience with front-end technologies, including HTML, CSS, and JavaScript.

Knowledge of relational databases, ORM (Object-Relational Mapping), and

database design.

Familiarity with version control systems (e.g., Git).

Understanding of web security best practices.

• 3+  years of hands-on experience in ERPNext Platform and Frappe Framework, Python, JavaScript and MySQL/MariaDB
• Strong knowledge of configuration and customisation of the ERPNext platform

We are an age-tech startup revolutionising healthcare with real-time data. We are creating a connected-care ecosystem that uses AI-enabled Health Algorithms and medical devices (IoT & Wearables) to digitise medical information exchange. In short, we want to allow older adults to live independently at their homes and enjoy their moments while keeping everyone informed. Our mission is to provide doctors, carers and family relatives with predictive tools capable of picking up health problems before they become severe, therefore saving time, money and lives.

Every member of the technology team is responsible for:

• The availability, security, scalability, and interoperability of our platform

• Delivering our product roadmap

• Planning for the future

• Generating enthusiasm and a sense of both technical and product pride

As a Senior .NET Developer, you play a key role in ensuring your team can efficiently turn ideas into reality. You’ll need to:

• Write technically sound, clean, maintainable code with practical application of established patterns and practices

• Take technical ownership of your team’s work, from its infancy through to delivering great implementation in production that pushes our standards higher and higher

• Believe in testing and make sure your code is always tested and the quality standards are always high

• Contribute to the definition and keep to the processes, standards and designs your team has agreed upon

• Track the progress that you are making towards the wider goals of your team, and transparently communicate that progress to your team and Technical Lead

• Ensure you and others are continuously improve, by proposing and implementing new processes, designs and engineering practices that make the team more effective

• Take responsibility for supporting your changes all the way through proving they work well and continue to work well in production

• At least 4 years of commercial experience with C# and .NET

• At least 2 years of experience with React.js/Vue.js

• At least 2 years of commercial experience with Microsoft Azure (or AWS)

• Designing and developing APIs for both high availability and scalability

• Writing automated tests (both unit and integration tests)

• Experience with CI/CD pipelines (ideally Azure DevOps)

• TDD and BDD

• Contributing to open source community

• DevOps, monitoring and alerting

• Experience with Health-tech, FHIR, Wearables, IoT

• If you can join within 1 month