
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.
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Experience: 6+ Years
Location: Chennai & Pune
Work Model: Hybrid
Notice Period: Immediate Joiners Preferred
Role Overview
We are looking for a highly skilled Senior Python Engineer to design, develop, and scale robust backend systems and data-driven applications. The ideal candidate should have strong problem-solving skills, experience with modern Python frameworks, and exposure to cloud and emerging technologies like Generative AI and LLMs.
Key Responsibilities
- Design, develop, and maintain scalable applications using Python
- Build and optimize RESTful APIs using Flask or FastAPI
- Work on data manipulation, processing, and transformation using Python libraries
- Collaborate with cross-functional teams to define and deliver high-quality solutions
- Develop efficient, reusable, and reliable code with strong attention to performance
- Implement containerization and orchestration using Docker and Kubernetes
- Ensure application security, data protection, and compliance best practices
- Manage code versioning using Git and follow CI/CD best practices
- Contribute to cloud-based deployments and infrastructure
- Explore and implement solutions using Generative AI and Large Language Models (LLMs)
Required Skills & Qualifications
- 6+ years of hands-on experience in Python development
- Strong understanding of Python fundamentals and problem-solving skills
- Experience with data manipulation libraries (e.g., Pandas, NumPy)
- Expertise in building REST APIs using Flask or FastAPI
- Solid understanding of ORM frameworks (e.g., SQLAlchemy, Django ORM)
- Experience with cloud platforms (AWS, Azure, or GCP)
- Hands-on experience with Docker and Kubernetes
- Strong knowledge of application security principles
- Proficiency in Git and version control practices
- Exposure to Generative AI concepts and working with LLMs
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 to 10 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 Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always first time right.
Our team consists of 1200+ 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 offers 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.
We have been certified as a Great Place to Work for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
About Corridor Platforms
Corridor Platforms is a leader in next-generation risk decisioning and responsible AI governance, empowering banks and lenders to build transparent, compliant, and data-driven solutions. Our platforms combine advanced analytics, real-time data integration, and GenAI to support complex financial decision workflows for regulated industries.
Role Overview
As a Backend Engineer at Corridor Platforms, you will:
- Architect, develop, and maintain backend components for our Risk Decisioning Platform.
- Build and orchestrate scalable backend services that automate, optimize, and monitor high-value credit and risk decisions in real time.
- Integrate with ORM layers – such as SQLAlchemy – and multi RDBMS solutions (Postgres, MySQL, Oracle, MSSQL, etc) to ensure data integrity, scalability, and compliance.
- Collaborate closely with Product Team, Data Scientists, QA Teams to create extensible APIs, workflow automation, and AI governance features.
- Architect workflows for privacy, auditability, versioned traceability, and role-based access control, ensuring adherence to regulatory frameworks.
- Take ownership from requirements to deployment, seeing your code deliver real impact in the lives of customers and end users.
Technical Skills
- Languages: Python 3.9+, SQL, JavaScript/TypeScript, Angular
- Frameworks: Flask, SQLAlchemy, Celery, Marshmallow, Apache Spark
- Databases: PostgreSQL, Oracle, SQL Server, Redis
- Tools: pytest, Docker, Git, Nx
- Cloud: Experience with AWS, Azure, or GCP preferred
- Monitoring: Familiarity with OpenTelemetry and logging frameworks
Why Join Us?
- Cutting-Edge Tech: Work hands-on with the latest AI, cloud-native workflows, and big data tools—all within a single compliant platform.
- End-to-End Impact: Contribute to mission-critical backend systems, from core data models to live production decision services.
- Innovation at Scale: Engineer solutions that process vast data volumes, helping financial institutions innovate safely and effectively.
- Mission-Driven: Join a passionate team advancing fair, transparent, and compliant risk decisioning at the forefront of fintech and AI governance.
What We’re Looking For
- Proficiency in Python, SQLAlchemy (or similar ORM), and SQL databases.
- Experience developing and maintaining scalable backend services, including API, data orchestration, ML workflows, and workflow automation.
- Solid understanding of data modeling, distributed systems, and backend architecture for regulated environments.
- Curiosity and drive to work at the intersection of AI/ML, fintech, and regulatory technology.
- Experience mentoring and guiding junior developers.
Ready to build backends that shape the future of decision intelligence and responsible AI?
Apply now and become part of the innovation at Corridor Platforms!
Responsibilities
- Design, develop, test, and deploy Java-based backend services and APIs.
- Collaborate with front-end developers, DevOps, and QA to deliver high-quality software.
- Write clean, efficient, and maintainable code following best practices.
- Participate in system design, code reviews, and architectural discussions.
- Optimize application performance and scalability.
- Ensure secure and compliant backend services.
- Troubleshoot and debug production issues as part of the on-call rotation.
- Contribute to CI/CD and infrastructure automation efforts.
Looking For Java Developer who will help Build large scale distributed systems. The ideal candidate will be a thinker and a team player with a passion for technology and with a knack for benchmarking and optimization.
• Computer Science fundamentals in object-oriented design, data structures, algorithms, problem solving, and complexity analysis
• Must have hands on experience on coding in Core Java, multithreading, concurrency and collection.
Good knowledge of Microservices.
• Knowledge of professional software engineering practices. Understanding of full software development life cycle, including coding standards, code reviews.
• Strong technical Design and Development skills
• Ability to work effectively under pressure in a dynamic environment.
• Agility to switch across multiple teams/ products/ applications and perform
• Experience in translating requirements into technical design specifications and documentation, as well as executing development projects from conception to delivery
• Excellent verbal and written communication skills
- 3+ years of SDE work experience from Product based companies
- Experience in Java, Spring Boot, MySQL, Kafka, Hbase, AWS
- Experience in Multi threading, distributed systems, Best practices of coding, scaling
Java_FullstackDeveloper_DGT II
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Required Skills:
Desired Skills:
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- Proven hands-on Software Development experience
- Proven working experience in Java development
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring boot , hibernate Framework
Swift is building a next generation checkout stack for India - a platform rolling up payments and logistics solution for all fulfillment needs. We give businesses the opportunity to provide a customer experience at par with the likes of Amazon and Flipkart, all the while saving money and time.
Its basically Amazon without the website listing - we let our sellers design their own sales channel :-)
We believe there are many things a seller or small business has to worry about when selling online, logistics/payments/etc shouldn't be one of them. With our solution, SMBs and D2C brands get access to technologies and services like next day delivery, same day delivery, live package tracking, Card/Cash on delivery, scheduled delivery etc, making parcel delivery just as simple as collecting payment.
We also provide robust APIs which makes it easy for developers to add shipping capabilities to their multichannel online store.
We want to be the #1 checkout platform that’s reliable, easy to use and affordable.
About you:
You have experience in Java/Scala/JVM based languages and have an understanding of server design and implementation. You are looking for challenges in growing a product from hundreds to millions of visitors per month making thousands of transactions a day.
You like working with streaming/reactive architectures and have experience/interest in setting up MongoDB based cloud infra from scratch. You generally prefer to use a minimal set of simple tools to a diverse range of complex ones.
We are looking to build a back-end cloud infrastructure (on Java/Scala with Google Cloud Platform preferably) which will be a fault-tolerant real-time stream processing system on the cloud - Our system will need to meet liveliness guarantees from a web/API application perspective (and not a big data/ETL perspective).
You like to work on a variety of projects - at this job, you’ll be developing a complex backend API infra, a reactive streaming architecture and a cloud-native, highly available API for our customers.
You have:
Experienced in any JVM based language.
Have some experience in NoSQL and architecting APIs
Strong verbal and written communication skills and the ability to work well cross-functionally.
We offer:
You to be a part of a small, but a super capable team.
The opportunity to work closely with founders to define, scope, estimate and plan various aspects of the product. Being one of the first hires at Swift, you will be involved in both high and low-level decision making. This means a lot of ownership, which we cultivate by having a flat structure.
Competitive salary and stock options from a high-growth company.
About radix health
We, http://www.radixhealth.com/">Radix health, Inc are a Healthcare IT solutions provider organization based out of US and India, developing innovative products that are solving some of the challenging problems for US Healthcare around patient access and patient care. We operate at the intersection of Clinical operations, data science and medical practices and we are a bunch of people with solid domain knowledge, technical expertise and eagerness to grow our footprint in the market.
Radix health is listed as one of the top 100 companies transforming US healthcare and we are proud to be associated with several leading medical groups in US.
Working at radix health
Are you looking for a place where growth opportunities abound, where you'll have the freedom to forge your own path, and where you can feel good about the work you're doing?
We're looking for people who are passionate about improving healthcare, constantly seek to make themselves better, love challenging problems, and never say never. We honor diversity and creative thought. We are committed to building an environment that challenges you, but where you can also have fun. As a growth-stage startup, we offer competitive compensation packages that reward hard work and long-term growth.
Perks at work
- Chance to work on real life problems in the healthcare industry.
- Culture of trust, empowerment and constructive feedback, Advanced technology stack , knowledge sharing through tech talks, product demos, parties & events.
- Competitive salary, great IT equipment, flexible working times, additional holidays and volunteering time off, free beverages and healthy evening snacks.
- A diverse, fun and open-minded team in a nice office in the centrally located part of Pune.
- Extensive onboarding, mentoring and personal development plan.
- Relocation assistance for outstation candidates.
- Comprehensive insurance benefits covering employees and their families.
- Genuine work/life balance served here.
Our Recruiting Process:
We aim to reply to all applicants within a few days of receiving your application. Our interview process consists of several stages, each one allowing us to get to know you better, professionally and technically. It is also an opportunity for you to gain a better understanding of our culture and the work we do here at Radix Health.
The stages include:
- CV review
- A little coding/Logical challenge
- Technical Interview with team
- Interview with VP.
We value your time and we move fast and provide feedback at every stage of the interview.
If you like being at the place where decision making is quick then you are on the right track
Role :
We are looking for an experienced Java or full-stack developer who is passionate about developing solutions that improve healthcare. The ideal candidate will have at least 4 years of experience building large-scale web applications.
You will be expected to define/scope feature-sets and develop new functions. You will be a part of the team that is focussed on our one of many industry leading software solutions, designing scalable/maintainable object oriented architecture and producing market leading, self-testable deliverables.
You are expected to be a technology enthusiast, who likes to think out of the box, embraces new technology alternatives, has a creative mind and is a go-getter.
Qualifications:
- Education : BE/MS/M. Tech/MCS/MCS with excellent records
- Server side : Java/J2EE, REST API development, RESTful web services, Spring Boot framework, JAX-RS APIs
- Concepts : Strong understanding of Data Structures, Concurrency, Mult-threading, Design patterns, Java packages, Garbage collection, collections, JVM, JDBC
- ORM : Mybatis, Hibernate
- Unit testing : JUNIT, TestNG, Mockito
- Build : Maven, Gradle
- CI/CD : GIT, Devops practices, Jenkins, containerization using Docker
- Databases : SQL, No-SQL, RDS, PostgreSQL, MySQL
- Cloud :AWS, EC2, ES3, ECR etc.
- APM: ELK, Grafana
Skills:
- At least 4 years of SAAS software development experience.
- Experience in cloud computing application implementations on AWS is a MUST!
- Excellent understanding of microservices architecture, design patterns, and standard methodologies with an eye towards scale, automation, resiliency, and high availability
- Experience with build-time dependency management (e.g. Ant, Maven); unit testing and code-coverage tools; test automation techniques and tools; and build automation tools (e.g. Jenkins,) tools is required.
- Strong understanding of Java is expected
- Good understanding of architectural principles involved in SaaS and multi-tenant platforms.
- Strong interpersonal, influencing, collaboration and negotiation skills












