
- Backend development along with team management
- Hands on experience in product development
- Preferred candidates from Fintech and Banking sectors
- Exp in Python / Java slong with databases like MySQL, NoSQL, etc
- Knowledge of Agile methodology

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JOB DESCRIPTION
Experience: 5+ years
Wissen Technology is now hiring for a 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. - 5+ 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.
Key Responsibilities:
● Design, develop, and maintain high-performance, scalable, and secure backend systems using Java.
● Build and maintain RESTful APIs and microservices to support application functionality.
● Collaborate closely with frontend developers to ensure smooth integration with React/Angular-based frontend systems.
● Work with both relational databases (SQL) and NoSQL databases to design data schemas, optimize queries, and maintain data integrity.
● Leverage cloud platforms (AWS, Azure, Google Cloud) to deploy, monitor, and scale applications.
● Implement and maintain containerization using Docker and Kubernetes (K8S).
● Write unit tests for both backend and frontend code to ensure code quality and reliability.
● Participate in code reviews to maintain code quality standards and mentor junior developers.
● Contribute to a culture of continuous improvement, proposing and driving best practices in backend development, testing, and deployment.
Required Skills And Experience
● Bachelors or Masters in computer science or related fields.
● 5+ years of experience in backend development, with strong expertise in Java (must-have).
● Solid experience with frontend frameworks such as React or Angular.
● Hands-on experience with RESTful APIs, Docker, and NoSQL databases (such as MongoDB, Cassandra, etc.).
● Strong experience with SQL databases (such as MySQL, PostgreSQL, etc.), including database design, optimization, and query writing.
● Familiarity with cloud platforms (AWS, Azure, Google Cloud) and Kubernetes (K8S).
● Experience in writing unit tests and understanding of test-driven development (TDD) principles.
● Strong understanding of Agile/Scrum methodologies.
Nice to Have:
● Exposure to Automation Testing Frameworks (e.g., Selenium, Cypress).
● Experience working in a SaaS (Software as a Service) environment.
● Knowledge of Agile/Scrum methodologies.
We are looking for a skilled Backend Developer with strong experience in building, scaling, and optimizing server-side systems. The ideal candidate is proficient in Node.js, FastAPI (Python), and database design, with hands-on experience in cloud infrastructure on AWS or GCP.
Responsibilities:
Design, develop, and maintain scalable backend services and APIs using Node.js and FastAPI
Build robust data models and optimize performance for SQL and NoSQL databases
Architect and deploy backend services on GCP/AWS, leveraging managed cloud services.
Implement clean, modular, and testable code with proper CI/CD and observability (logs, metrics, alerts)
Ensure system reliability, security, and high availability for production environments
Requirements:
2–5 years of backend development experience
Strong proficiency in Node.js, FastAPI, REST APIs, and microservice architecture
Solid understanding of PostgreSQL/MySQL, MongoDB/Redis or similar NoSQL systems
Hands-on experience with AWS or GCP, Docker, and modern DevOps workflows
Experience with caching, queueing, authentication, and API performance optimization
Good to Have:
Experience with event-driven architecture, WebSockets, or serverless functions
Familiarity with Kubernetes or Terraform
Job Location: Gurugram, Haryana, India
Industry: Artificial Intelligence
Quantsapp is India's first Option Trading Analytics platform on mobile. With
ever-growing users,
it makes us one of the fastest growing platform for options trading in India.
Quantsapp wants to accelerate its growth even more and capture new
countries which requires the development team to grow.
At Qauntsapp we are looking for a dynamic team mate to take up a role of
Server side development to support the brain behind the application.
Job Summary :
- You will be responsible for developing new logics / products / features as
described by the business / research team.
- An ideal candidate should be strong in mathematical processes like
optimizations, matrix algebra, differential equation, simulation process etc.
and should also possess decent hands-on experience on python, sql server and
preferably Aws. IIT graduation is a plus.
Responsibilities :
- Create algorithms from scratch
- Create products and backend API's as described by the business team
- Back-test and create hypothesis as desired by the research team
- Code the backend of logics for consumption by the UI team
- Deploy websockets, rest api's & dynamic tcp, udp based data flow
- Deployment and maintenance of codes with version control
Requirements :
- Should possess a good knowledge of advanced computing and mathematical
process
- Strong hands-on on Python and optionally Matlab
- Knowledge of databases like Sql & No Sql
- Ability to work with tight time lines
- In depth knowledge and good hands on experience on Pandas and Numpy
- Knowledge of Option Markets is a plus
- Excellent organizational and multitasking ability
- Experience on AWS Cloud is a plus
Software Development Engineer – SDE 2.
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
You write high quality, maintainable, and robust code, often in Java or C++ or C#
You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
Roles & Responsibilities
You solve problems at their root, stepping back to understand the broader context.
You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
You recognize and use design patterns to solve business problems.
You understand how operating systems work, perform and scale.
You continually align your work with Amazon’s business objectives and seek to deliver business value.
You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
Bachelors or Masters in Computer Science or relevant technical field.
Experience in software development and full product life-cycle.
Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
Proficiency in SQL and data modeling.
Tatsam is a stealth mode, venture-backed mental healthcare company based in India. We're redesigning mental health and wellness experiences for the modern day working professional, have raised angel round from top-tier investors, and signed some of the largest Indian enterprises and startups for the upcoming private beta launch… and we’re just getting started.
The startup is led by a team of CXOs who are serial entrepreneurs (YC alumni, IIT alumni, CXO in large enterprises). They are supported by a team of behavioral design experts, clinicians and counsellors with vast experience, and technologists on a mission to improve mental health and wellbeing for the modern day working professional.
Responsibilities:
- Your primary responsibility as a senior backend engineer will be to architect and develop a scalable and robust micro-services backend with strong Java, Spring(Boot), MySQL, AWS/GCP.
- Experience being part of a software development team in an Agile/Lean/Continuous Delivery environment
- Be a key performer in a high-performance product engineering team
Qualifications:
- 1 to 4 years of overall IT experience. Most of this experience in Java (Core Java, J2EE, Springboot, Java collections, Java Multithreading)
- Should have experience designing database schemas - SQL and NoSQL.
- Exposure to frameworks like Spring, Hibernate, Play would be a plus
- Experience with microservices architecture would be beneficial.
- Working knowledge of any public cloud (AWS, GCP or Azure)
- Broad understanding and experience of real-time analytics, NoSQL data stores, data modeling and data management, analytical tools, languages, or libraries
- Bachelor's Degree in Computer Science or Engineering.
The Opportunity
You will enter a close group of exceptionally talented people who in the last 2-months have secured incredible investors, partners, clients and advocates. We will continue this momentum till our vision of being able to provide good mental health and wellbeing avenues for the modern day professionals is achieved. If we like each other and agree to partner in this journey, this has the potential of resulting in a compounded career and mental growth for you.
o Minimum 8 years of overall experience in software development.
o Experience as a Lead developer .
o Experience with AWS,Architecture, Node js.












