Java Application Developer (4+ Yrs of Workex), Graph Based Product Dev

🧠 Job Description: Senior Java Developer (8+ Years Experience)

Location: Mumbai, India

Employment Type: Full-time, Hybrid mode of working

Company: Wissen Technology

Website: www.wissen.com

🚀 About Wissen Technology

Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.

• 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
• 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
• 🏆 Great Place to Work® Certified
• 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
• 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
• 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies

Learn more about our work and thought leadership:

📄 Articles by Wissen | 💼 LinkedIn

About the Role

We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.

Key Responsibilities

• Design, develop, and maintain complex applications using Core Java and Spring frameworks
• Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
• Implement and optimize multithreaded applications for high-performance systems
• Work with SQL databases for efficient data modeling, query optimization, and integration
• Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
• Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
• Mentor junior developers and contribute to technical knowledge sharing within the team
• Ensure application scalability, performance tuning, and security compliance

Required Skills & Qualifications

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 8+ years of professional experience in Java development
• Strong expertise in Core Java, OOPS, and Multithreading
• Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
• Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
• Solid understanding of software development life cycle (SDLC) and Agile methodologies
• Strong analytical, problem-solving, and communication skills

🌟 Why Wissen?

Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

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.

Location: Remote (US preferred) | Type: Full-Time | Team Size: 12-person product org

Industry: Fintech / Lending SaaS | Stack: PHP, Python, AWS, LangChain, OpenAI, CrewAI

🧠 

What We’re Building

We’re LendingWise — a B2B SaaS platform powering over 250 lenders, brokers, and banks nationwide. We’re launching a next-gen AI Agent Platform for the mortgage/lending lifecycle: document verification, pricing engines, automated workflows, and multi-agent orchestration — all fully integrated with our CRM/LOS.

You’ll lead the design and development of:

• Modular AI agent system (n8n, CrewAI, LangChain, or your recs)
• Workflow builder UI (admin-facing, trigger/condition/action logic)
• Tool registry + field mapping layer (to connect LendingWise + 3rd-party APIs like CoreLogic, Qualia)
• Document AI module using OCR (Textract or Google)
• Python AI microservices running next to our PHP monolith
• OpenAPI 3.1 upgrade of our current endpoints

🛠️ 

Your Role

• Act as hands-on architect and lead engineer
• Own integration of LLMs, workflows, and document tools into real loan files
• Design scalable agent orchestration, triggers, and tool execution
• Collaborate with CTO, 5 full stack engineers (PHP), and 2 product owners
• Prototype and ship the MVP in 4–6 months, scale from there

💡 

About You

• You’ve built real-world agent workflows or automation platforms (AI or not)
• You’re fluent in LangChain, CrewAI, OpenAI API, or similar
• You’ve shipped production software integrating external APIs and business logic
• You’re comfortable leading architecture, writing Python services, and advising on where PHP stays or goes
• You balance speed with technical vision — you build for iteration, not just demos

🧰 

Bonus Skills

• Experience with mortgage or financial software
• PHP knowledge (to interface with legacy systems)
• Familiarity with MCP (Model Context Protocol) or tool registry concepts
• Vector databases, RAG, embeddings, Doc AI APIs

📈 Why This Role?

• Massive greenfield AI project with real customers, real use cases, real docs
• No fluff. Small team. Fast cycles. Visible outcomes.
• You’ll architect something that might become the “AI Copilot of Lending”

✅ Apply if you’re ready to:

• Own the architecture
• Write production Python
• Help shape the next chapter of AI in lending tech

Position Overview

We are seeking an experienced Lead Full Stack Developer to join our dynamic team in Bangalore. The ideal candidate will lead full-stack development initiatives, mentor the development team, and deliver scalable, secure, and high-performing solutions using modern technologies.

Key Responsibilities

• Develop and maintain front-end components using AngularJS.
• Build secure RESTful APIs and backend services using Spring Boot.
• Integrate and manage MongoDB for efficient data storage and retrieval.
• Collaborate closely with UI/UX designers, product managers, and QA teams.
• Ensure application performance, responsiveness, and scalability.
• Participate in code reviews and enforce coding best practices.
• Debug and resolve technical issues across the full stack.
• Write and maintain unit and integration tests for frontend and backend.
• Manage Git-based version control and CI/CD pipelines.
• Provide technical leadership and mentor junior developers.

Required Qualifications

Education & Experience:

• Minimum 5 years of professional software development experience.
• Bachelor’s degree in Computer Science, Engineering, or related field.
• Proven track record in full-stack development.

Technical Skills:

• Proficient in AngularJS, JavaScript, TypeScript, HTML, CSS.
• Strong backend skills using Java & Spring Boot.
• Experience with MongoDB, including schema design and queries.
• Solid understanding of REST APIs, HTTP protocols, and web architecture.
• Hands-on experience with Postman, Maven, Git.
• Familiarity with JSON, XML, and serialization formats.
• Strong knowledge of web security best practices.
• Understanding of Agile development methodologies.
• Experience managing CI/CD pipelines.

Leadership Skills:

• Prior experience leading a development team (preferred).
• Ability to mentor, guide, and coach junior developers.
• Strong project planning and coordination abilities.

Soft Skills:

• Exceptional leadership and collaboration skills.
• Strong analytical thinking and problem-solving abilities.
• Excellent verbal and written communication skills.
• Ability to work under pressure and meet tight deadlines.
• Strategic thinking with attention to detail.
• Adaptability to rapidly changing technologies.
• Effective time management and organizational skills.

Preferred (Good-to-Have):

• Background or understanding of electrical systems.
• Experience with cloud platforms & deployment strategies.
• Knowledge of modern frameworks and emerging technologies.

Location: Hybrid/ Remote

Openings: 5

Experience: 0 - 2Years

Qualification: Bachelor’s or Master’s in Computer Science or a related technical field

Key Responsibilities:

Backend Development & APIs

• Build microservices that provide REST APIs to power web frontends.
• Design clean, reusable, and scalable backend code meeting enterprise security standards.
• Conceptualize and implement optimized data storage solutions for high-performance systems.

Deployment & Cloud

• Deploy microservices using a common deployment framework on AWS and GCP.
• Inspect and optimize server code for speed, security, and scalability.

Frontend Integration

• Work on modern front-end frameworks to ensure seamless integration with back-end services.
• Develop reusable libraries for both frontend and backend codebases.

AI Awareness (Preferred)

• Understand how AI/ML or Generative AI can enhance enterprise software workflows.
• Collaborate with AI specialists to integrate AI-driven features where applicable.

Quality & Collaboration

• Participate in code reviews to maintain high code quality.
• Collaborate with teams using Agile/Scrum methodologies for rapid and structured delivery.

Required Skills:

• Proficiency in JavaScript (ES6+), Webpack, Mocha, Jest
• Experience with recent frontend frameworks – React.js, Redux.js, Node.js (or similar)
• Deep understanding of HTML5, CSS3, SASS/LESS, and Content Management Systems
• Ability to design and implement RESTful APIs and understand their impact on client-side applications
• Familiarity with cloud platforms (AWS, Azure, or GCP) – deployment, storage, and scalability
• Experience working with Agile and Scrum methodologies
• Strong backend expertise in Java, J2EE, Spring Boot is a plus but not mandatory

Since the goal is to grow and develop ourselves, working together can allow you and Shethink PVT. Ltd. to earn fortune remarks and leads.

We are immensely looking for MEAN/MERN Developer.

Full Stack Developer Responsibilities:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

Full Stack Developer Requirements:

• Degree in computer science.
• Strong organizational and project management skills.
• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
• Proficiency with server-side languages such Java, PHP, and .Net.
• Familiarity with database technology such as MySQL, Oracle, and MongoDB.
• Excellent verbal communication skills.
• Good problem-solving skills.
• Attention to detail.

Experience Required:

• The candidate must at least have a total experience of 1-4 years in the relevant field.
• The candidate must have basic knowledge regarding data structure and algorithm.
• We require people with keen logisticts skills.
• The candidate must be strong with basics and their concepts must be clear enough to deal with all sorts of delusions.

Location: Indore (WFO)

Own laptop is mandatory.

●       Deep knowledge and hands-on experience of Java & UI stack.

●       Proficient experience of web technologies, frameworks and tools like HTML, CSS, JavaScript, React, NodeJS, XML, jQuery, Spring, etc.

●       Should be well versed with State Management, Redux, Reducers, Java Script, CSS in ReactJS/UI

●       Practical experience of test-driven development and constant refactoring in continuous integration environment.

●       Experience in Oracle PL/SQL programming is required, knowledge of SQL and relational databases

●       Experience working in an agile team, practicing Scrum, Kanban, or XP

●       Experience of performing Functional Analysis is highly desirable.

●       Excellent communication and teamwork skills.

People skills:

●       End to end ownership in driving team towards delivery.

●       Performance and productivity orientation to promote high-quality results.

●       Profound analytical skills and problem-solving abilities.

●       Good communication and excellent interpersonal skills.

●       Pro-active and flexible working approach.

●       Ability to think outside the box to resolve problems.

●       Efficient and well organized, detail oriented.