
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.
Connect with the team
Similar jobs
Company Overview:
Euphoric Thought Technologies is a technology-driven firm focused on building scalable software solutions for complex enterprise challenges. Operating at the intersection of data-intensive platforms and cloud-native infrastructure, the company partners with global clients to modernize their digital ecosystems. With a culture rooted in engineering excellence and pragmatic problem-solving, Euphoric Thought Technologies empowers its teams to deploy high-impact applications that serve millions of end-users across diverse industry verticals.
Role Overview:
As a Senior Python Developer based in Bangalore, you will serve as a technical anchor for our core product development initiatives. You will work closely with cross-functional teams, including product managers, frontend engineers, and DevOps specialists, to architect robust backend services that drive our platform's performance. Your daily contributions will involve translating complex business requirements into clean, maintainable code, ensuring that our systems remain resilient and efficient as we scale to meet growing user demand.
Key Responsibilities:
- Design and implement high-performance backend services using Python to ensure seamless data processing and system reliability for our enterprise clients.
- Develop and maintain RESTful APIs that facilitate smooth integration between internal microservices and external third-party platforms.
- Optimize database queries and schema designs in SQL to improve application latency and support high-concurrency environments.
- Architect and deploy cloud-native solutions on AWS, ensuring that our infrastructure remains scalable, secure, and cost-effective.
- Implement comprehensive unit and integration testing using PyTest to maintain high code quality and minimize production defects.
- Collaborate with stakeholders to refine technical specifications and mentor junior developers to foster a culture of continuous technical improvement.
Required Skillset:
- Demonstrated expertise in building and scaling production-grade applications using Python, with a deep understanding of Django and Flask frameworks.
- Proven ability to design and document RESTful APIs that adhere to industry standards for security and performance.
- Proficient in managing and optimizing complex SQL databases to support data-heavy application requirements.
- Hands-on experience in configuring and managing AWS services to support deployment pipelines and cloud infrastructure.
- Strong commitment to test-driven development, evidenced by a track record of using PyTest to ensure system stability.
- Excellent communication skills with the ability to articulate technical concepts to non-technical stakeholders and work effectively in a collaborative, office-based environment in Bangalore.
- Possess 6 to 9 years of professional software development experience, showcasing a consistent ability to deliver high-quality code in fast-paced environments.
What We’re Looking For:
- Strong experience in Python (4+ years).
- Hands-on experience with any database (SQL or NoSQL).
- Experience with frameworks like Flask, FastAPI, or Django.
- Knowledge of ORMs, API development, and unit testing.
- Familiarity with Git and Agile methodologies.
- Familiarity with the Kafka tool (Added Advantage)
We are hiring for a Python Developer at Wissen Technology!
📍 Location: Pune (Hybrid)
💼 Experience: 3–6 Years
⏱️ Notice Period: Immediate / 15 days preferred
🔧 Key Skills:
• Strong experience in Python
• Hands-on with Pandas & NumPy
• Experience with AWS (S3, Lambda preferred)
• Good understanding of data processing & APIs
• SQL knowledge
🏢 About Wissen Technology:
Wissen Technology, part of the Wissen Group (est. 2000), is a fast-growing technology company specializing in high-end consulting across Banking, Finance, Telecom, and Healthcare domains.
✔️ Global presence – US, India, UK, Australia, Mexico & Canada
✔️ Certified Great Place to Work®
✔️ Trusted by Fortune 500 clients like Morgan Stanley, Goldman Sachs, and more
✔️ Strong growth with 400% revenue increase in recent years
🌐 Website: www.wissen.com
🔗 LinkedIn: https://www.linkedin.com/company/wissen-technology/
If you’re interested or have relevant candidates, please share your resume at [your email].
#Hiring #PythonDeveloper #PuneJobs #AWS #ImmediateJoiner
While you may already know about Wissen and the company history, here is a quick rundown for you.
About Wissen Technology:
· 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. We help clients build world class products.
· Our workforce has highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
· Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments.
· Globally present with offices 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.
· Wissen Technology has been certified as a Great Place to Work®.
· Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
· Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
· We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.
De
Job Title: Application Development Engineer (Python – Backtesting & Index Platforms)
Role Overview
Key Responsibilities
Engine Development: Design and implement modular, reusable Python components for index construction, rebalancing, and backtesting.
Large-Scale Simulation: Use Pandas, NumPy, and PySpark to run historical calculations across long time horizons and multiple index variants.
Workflow Integration: Integrate engines with orchestrators such as Airflow or Temporal using parameterized, config-driven execution.
Reference Data Consumption: Query and utilize pricing, security master, and corporate action data from Snowflake.
Quality & Reconciliation: Build automated test harnesses to validate outputs, compare against benchmarks, and guarantee reproducibility.
Performance Optimization: Improve runtime efficiency through vectorization, caching, and distributed computing patterns.
Cross-Team Collaboration: Partner with Business, Index Ops, and Platform teams to accelerate research-to-production onboarding.
Required Technical Capabilities
Python Expertise: Strong proficiency in Python application development with emphasis on clean architecture and maintainable design.
Data & Numerical Libraries: Deep experience with Pandas and NumPy; working knowledge of PySpark for distributed workloads.
Financial Computation: Ability to implement portfolio mathematics, weighting algorithms, and time-series transformations.
Config-Driven Systems: Experience building rule-based or metadata-driven processing frameworks.
Database Skills: Strong SQL and experience consuming structured data from Snowflake.
Testing Discipline: Expertise in unit testing, regression testing, and deterministic replay of calculations.
Orchestration Integration: Familiarity with Airflow, Temporal, or similar workflow engines.
Cloud Infrastructure: Solid understanding of AWS ecosystem services (S3, Lambda, IAM) and how they integrate with the Snowflake Data Cloud.
Azure Chatbot Developer
Location :Bangalore / Mumbai / Pune
Job Description
Build and maintain bots on Azure platform. Integration with Active directory, WEB API based integration with external systems. Training and Integrate bots as per users’ requirements. Work in line with design guidelines, best practices and standards of bot deliverable. Creative approach to the conversation flow design, human aspects in the bot responses and sentiments
Qualifications
a) 5 years of experience in software development with clear understanding of the project life cycle
b) Min 2-3 years of hands-on experience in Microsoft Azure Bot Framework, LUIS and other Cognitive services offered by Azure
c) Hands on experience with Machine Learning based chat bots
d) Experience with Azure bot services like Text Analytics etc.
e)Strong database skills and hands-on experience on databases like SQL Server/Oracle
f) Strong experience on Azure Active directory and adaptive cards integration in Chat bot.
g) Strong experience designing and working with
with service-oriented architectures (SOA) and WebAPIs.
h) A strong experience on Microsoft Azure, ASPNET / MVC and programming languages such as C#/VBNET
i) Knowledge of Python and NodeJS is a plus
j) Ability to design and optimize SQL Server 2008 stored procedures.
k) Experience with JQuery, CSS3, HTML5 or similar technologies.
l) Ability to adapt quickly to an existing, complex environment.
Job Title: Backend Developer
Experience: 2–7 Years
Location: On-site – Bangalore
Employment Type: Full-Time
Company: Pepsales AI (Multiplicity Technologies Inc.)
About Pepsales
Pepsales AI is a real-time sales enablement and conversation intelligence platform built for B2B SaaS sales teams. It empowers sellers across every stage of the sales cycle—before, during, and after discovery calls—by providing actionable insights that move deals forward.
- For Account Executives: Pepsales AI transforms the discovery process, ensuring objective deal qualification and frictionless handoffs to solution engineers—enabling AEs to focus on winning, not chasing.
- For Solution Engineers and Consultants: It elevates demo experiences by delivering real-time buyer context and actionable insights, ensuring every interaction is highly personalized and impactful.
- For Sales Leaders: It provides enterprise-grade intelligence across forecasting, pipeline health, team performance, coaching, and the authentic voice of the customer—empowering data-driven decision-making at scale.
With Pepsales AI, sales teams run sharper meetings, accelerate deal cycles, and close with confidence.
Role Overview
We’re seeking a passionate Backend Developer to join our fast-paced team in Bangalore and help build and scale the core systems powering Pepsales. In this full-time, on-site role, you’ll work on high-impact features that directly influence product innovation, customer success, and business growth.
You’ll collaborate closely with the founding team and leadership, gaining end-to-end ownership and the chance to bring bold, innovative ideas to life in a rapidly scaling startup environment
Key Responsibilities
- Design, develop, and maintain scalable backend systems and microservices.
- Write clean, efficient, and well-documented code in Python.
- Build and optimize RESTful APIs and WebSocket services for high performance.
- Manage and optimize MongoDB databases for speed and scalability.
- Deploy and maintain containerized applications using Docker.
- Work extensively with AWS services (EC2, ALB, S3, Route 53) for robust cloud infrastructure.
- Implement and maintain CI/CD pipelines for smooth and automated deployments.
- Collaborate closely with frontend engineers, product managers, and leadership on architecture and feature planning.
- Participate in sprint planning, technical discussions, and code reviews.
- Take full ownership of features, embracing uncertainty with a problem-solving mindset.
Required Skills & Qualifications
- 2–7 years of backend development experience with a proven track record of building scalable systems.
- Strong proficiency in Python and its ecosystem.
- Hands-on experience with MongoDB, Docker, and Microservice Architecture.
- Practical experience with AWS services (EC2, ALB, S3, Route 53).
- Familiarity with CI/CD tools and deployment best practices.
- Strong understanding of REST API design principles and WebSocket communication.
- Excellent knowledge of data structures, algorithms, and performance optimization.
- Strong communication skills and ability to work in a collaborative, fast-paced environment.
What We Value
- Excitement to work on cutting-edge technology and platforms , helping redefine how businesses engage and convert customers.
- Thrives in a dynamic startup environment that values diversity, rapid innovation, and a growth mindset—adapting to change, challenging the status quo, and making a real impact.
- Passion for ownership beyond coding, contributing to product strategy and innovation.
Why Join Pepsales?
- Direct access to founders and a voice in high-impact decisions.
- Opportunity to shape a next-gen AI SaaS product transforming sales worldwide.
- Exposure to cutting-edge technologies in a rapidly growing startup.
- Ownership-driven culture with fast career growth and learning opportunities.
- A collaborative, innovation-driven environment that values creativity and problem-solving.
💥 What will you do?
As a Lead Backend Engineer, you will
- Build out and help scale our Django (+ReactJS / VueJS) based web application as we add new features and customers
-
Help us transition from monolithic system architecture to microservices and serverless system architecture to help meet our future scaling requirements
- Collaborate on a daily basis with a small, nimble team of product managers, engineers, and UX designers to understand business requirements and user experience goals and pain points.
- Build out features to enable multi-channel customer acquisition include partner channels, enterprise channels, and government channels
- Integrate third-party plugins to enhance customer experience and internal tooling build internal tooling to improve internal team efficiencies.
- Actively participate in code reviews
- Work with our quality assurance team to improve coverage on our automated testing suites
🙋 What are we looking for?
While we do not have a strict list of requirements for candidates interested in this role, some indicators that you would fit this role and our engineering culture are
-
Prior experience of a few years (3+ years) with python based frameworks as Django or Flask would be essential to work on our application stack.
-
You actively promote a culture of engineering excellence some of which could be writing efficient code, use of elegant design patterns, and styling your code through code-linting policies.
-
You enjoy designing software architecture by collaborating with engineering managers, architects, and other lead engineers to explore existing systems, determining areas of complexity, potential risks to successful implementation.
- You enjoy coaching folks to achieve outcomes through nudges.
📢 Other information you may want to consider
- We will be flexible for the rest of the pandemic and work remotely; however, we are not a remote-first company, and the work location would be Bangalore when things settle.
- Our backend tech stack includes Django, FastAPI, Postgres, Redis, Clickhouse, and TigerGraph. Our environments are managed through Docker, Kubernetes, and Terraform.
• Knowledge of Agile methodologies & best practices for the SDLC (including coding standards, code
reviews, source control management & build processes).
• Must have experience in designing Factories/API/Interfaces independently in Java
• Highly skilled in using OR Tools like Hibernate/Ebean.
• Must have a good understanding of relational databases (MySQL/Postgres), transactions, and indexing.
• Must be able to do performance optimization, and use multi-threading wherever possible.
• Experience with Kafka, Big Query, and ElasticSearch a plus.
• Drive test coverage and continuous delivery automation within the team.
• Experience with building highly available and scalable distributed systems a plus.
Preferred Qualifications:
• 3-4 Years of experience with a Bachelor’s/Master's degree in Computer Science, Math, or Related
technical domain from reputed organizations.
• Strong communication & mentoring skills
Period: 6 months+
JD:
● 4-7 years of experience building and scaling APIs and web applications.
● Experience building and managing large scale data/analytics systems.
● Have a strong grasp of CS fundamentals and excellent problem solving abilities. Have a good
understanding of software design principles and architectural best practices.
● Be passionate about writing code and have experience coding in multiple languages, including at least
one scripting language, preferably Python.
● Be able to argue convincingly why feature X of language Y rocks/sucks, or why a certain design decision
is right/wrong, and so on.
● Be a self-starter—someone who thrives in fast paced environments with minimal ‘management’.
● Have experience working with multiple storage and indexing technologies such as MySQL, Redis,
MongoDB, Cassandra, Elastic.
● Good knowledge (including internals) of messaging systems such as Kafka and RabbitMQ.
● Use the command line like a pro. Be proficient in Git and other essential software development tools.
● Working knowledge of large-scale computational models such as MapReduce and Spark is a bonus.
● Exposure to one or more centralized logging, monitoring, and instrumentation tools, such as Kibana,
Graylog, StatsD, Datadog etc.
● Working knowledge of building websites and apps. Good understanding of integration complexities and
dependencies.
● Working knowledge linux server administration as well as the AWS ecosystem is desirable.
● It's a huge bonus if you have some personal projects (including open source contributions) that you work
on during your spare time. Show off some of your projects you have hosted on GitHub.










