
- Core Java 5.0 and above
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
- 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux.
- Strong written and oral communication 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.
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About Us:
MyOperator and Heyo are India’s leading conversational platforms, empowering 40,000+ businesses with Call and WhatsApp-based engagement. We’re a product-led SaaS company scaling rapidly, and we’re looking for a skilled Software Developer to help build the next generation of scalable backend systems.
Role Overview:
We’re seeking a passionate Python Developer with strong experience in backend development and cloud infrastructure. This role involves building scalable microservices, integrating AI tools like LangChain/LLMs, and optimizing backend performance for high-growth B2B products.
Key Responsibilities:
- Develop robust backend services using Python, Django, and FastAPI
- Design and maintain a scalable microservices architecture
- Integrate LangChain/LLMs into AI-powered features
- Write clean, tested, and maintainable code with pytest
- Manage and optimize databases (MySQL/Postgres)
- Deploy and monitor services on AWS
- Collaborate across teams to define APIs, data flows, and system architecture
Must-Have Skills:
- Python and Django
- MySQL or Postgres
- Microservices architecture
- AWS (EC2, RDS, Lambda, etc.)
- Unit testing using pytest
- LangChain or Large Language Models (LLM)
- Strong grasp of Data Structures & Algorithms
- AI coding assistant tools (e.g., Chat GPT & Gemini)
Good to Have:
- MongoDB or ElasticSearch
- Go or PHP
- FastAPI
- React, Bootstrap (basic frontend support)
- ETL pipelines, Jenkins, Terraform
Why Join Us?
- 100% Remote role with a collaborative team
- Work on AI-first, high-scale SaaS products
- Drive real impact in a fast-growing tech company
- Ownership and growth from day one
Minimum 3+ Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
· Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
· Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
· Expert level understanding of Object-Oriented Concepts and Data Structures
· Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
Udrive is the largest car sharing platform in the Middle East. We pioneered the concept in the region and have continued to provide the best experience amongst our peers. We are in rapid expansion and are looking for a bright, successful and determined individual who has the experience to take the companies vision forwards into the next 5 years.
Our next 5 years journey not only includes regional and global aspirations; we are building the next generation of mobility services to change the way people use vehicles
We are looking for a Full Stack Engineer for our Core Team. The Core team is responsible for the platform comprising multiple microservices which drive Udrive, from onboarding to billing.
Your responsibilities
As a Full Stack Engineer (Node.js) you...
- will work with a cross-functional agile team on the backend systems that power our platform
- are somebody who is familiar with state of the art technology and development stack and best-practices, you have the option to contribute to the technology strategy and roadmap of the team
- significantly contribute with your day to day work and deliverables to the overall success of our product
- contribute to an engineering culture where developers enjoy working and keep learning
- You have close contact with our product and QA team and help them troubleshoot, debug, and maintain a high quality of our product
Your profile
- You have a track record in building web applications in agile environments.
- +3 years experience with any enterprise technology like Javascript and Node.js or similar
- You have experience using any frontend frameworks like Vue.js, React or Angular
- You have experience in test-driven development
- You have very good knowledge of Git, development workflow automation and CI. Continuous Delivery is in our DNA.
- You have an appreciation for great user experience as much as for awesome tech architecture
- You are great at communicating with people, motivating everyone and getting the whole team on the same page
- Fluency in English
The most important one: willingness to learn. We are constantly learning new things and we enjoy it a lot. We don't expect to find people experienced in all of them. If you are excited about our tech-stack and you think you are a fast learner, do not hesitate to apply!
• Have strong experience in Go
• Have expertise in implementing microservices (using tools and technologies for messaging, GraphQL, GRPC, REST API, etc)
• Have implementation experience in data visualization (knowledge graph, for example), workflow or business process management
• Have expertise in design and development using PostresSQL
• Have experience with Containerization (Docker, Kubernetes, AWS)
• Experience of Cloud AWS based instances and services (e.g. EC2, S3, ELB, RDS, IAM, Route53, CloudFront, ElastiCache)
• Strong experience in enterprise application development, data structures, modern design patterns and microservices architecture
● Overlook development of all consumer products in JAVA Lead a team of 4-5 developers
● Optimise components for maximum performance across a vast array of web-capable devices
and browsers Focus on code maintainability and performance of application
● Provide technical advice and assists in solving programming problems
● Continuously create new and interactive features that would help to improve user experience
and user engagement.
● Assist with troubleshooting of issues as needed Lead the design and architecture of software
solutions Assist in developing and maintaining continuous integration pipelines
Requirements
● 6+ years of experience in Java based technologies Experience in designing databases and
system architecture
● Experience in building products from scratch
● Experience in building fintech products like Insurance, Payments, Banking etc.
● Experience in building products for scale
● Strong interpersonal skills
● Good in multi stakeholder collaboration
REQUIRED SKILLS:
- 8+ years experience in web application development and architecture.
- ·Extensive experience using open source software libraries
- Strong experience in at least one MVC architecture or application of the pattern
- Solid hands on experience with Java
- Strong experience with SQL ( Oracle, MySQL, Postgres)
- Strong experience in Data Structures & Algorithms
- ·Must have built end to end continuous integration and deployment infrastructure for micro services
- Strong commitment to good engineering discipline and process including code reviews and delivering unit tests in conjunction with feature delivery
- Must possess excellent communication and teamwork skills. Strong presentation and facilitation skills are required.
- Self-starter that is results focused with the ability to work independently and in teams.
GOOD TO HAVE:
- Prior experience building modular, common and scalable services
- Experience using chef, puppet or other deployment automation tools
- Experience working within a distributed engineering team including offshore
- Bonus points if you have contributed to an open source project
- Familiarity and experience with agile (scrum) development process
- Proven track record of identifying and championing new technologies that enhance the end-user experience, software quality, and developer productivity
● Partner with the product/business teams to understand the product features and
specifications, translate them into high level and low-level design
● Participate in all stages of the Software Development Lifecycle
● Develop back-end components, services, and APIs. Support integration of user-
facing elements, and collaborate closely with the design and front-end development
team
● Write elegant, effective, and scalable code while maintaining the highest level of
coding standards
● Take ownership of the work and ensure timely deliveries
● Drive innovation in product development, while relentlessly improving performance,
scalability, and maintainability
Requirement
● Strong problem solving and analytical skills with a minimum of 2-4 years of
experience in backend development
● 1+ experience as a Java Developer, with strong knowledge of Java web frameworks
like Spring Boot, Hibernate, etc. and experience working in Microservices
architecture
● Hands-on experience of working with Linux/Unix platform
● Strong knowledge of SQL and RDBMS like PostgreSQL/MySQL etc.
● Experience in - Python, Git
● Strong technical aptitude and good knowledge of CS fundamentals
● Sound knowledge and application of algorithms and data structures with space and
time complexities
● Strong design skills involving data modelling and low-level class design
● Follow industry coding standards and responsible for writing maintainable, scalable,
and efficient code to solve business problems
Good to have
● B. Tech./M. Tech. in Computer Science or equivalent from a reputed college
● Prior experience working in a startup environment
● Experience in setting up an entire product from scratch
Work Location: Indira Nagar, Bangalore
Work Days: Sunday to Thursday OR Monday to Friday
Shift: Day Time
Week Off: Friday & Saturday OR Saturday & Sunday
JD:
Development of applications in Java including:
Building data processing platforms.
Developing micro service-oriented applications (Mandatory).
Interact with stakeholders of the applications being developed.
Desired Candidate Profile:
Must have experience in Java JEE, Spring Framework, Microservices (Mandator)
Experience in SQL and JDBC
Experience in build tools Maven, git
Experience in Cloud Platforms AWS, Azure is a plus.
Responsibilities
- Work with the architect in identifying modules, interfaces, functionality to be developed
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write clean code to develop functional web application, addressing technical and design requirements
- Understand and implement heuristic algorithms as necessary
- Troubleshoot and debug applications
- Create and maintain upto date documentation
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Provide training and support to internal teams
- Build reusable code and libraries for future use
- Liaise with developers, architects, designers and system administrators to identify and incorporate new features
Requirements
- Proven work experience in Java as a Back-end developer
- In-depth understanding of the entire web development process (design, development and deployment)
- Hands on experience with programming languages like https://resources.workable.com/back-end-developer-job-description" target="_blank">Java and Python
- Hands on experience in relational and non relational databases
- Working knowledge of CMS framework
- Familiarity with front-end languages (e.g. HTML, JavaScript and CSS)
- Excellent analytical and time management skills
- Teamwork skills with a problem-solving attitude
- BE/ MS degree in Computer Science or relevant field









