ML Engineer

🧠 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.

What You’ll Do:

As a Sr. Data Scientist, you will work closely across DeepIntent Data Science teams located in New York, India, and Bosnia. The role will focus on building predictive models, implementing data-driven solutions to maximize ad effectiveness. You will also lead efforts in generating analyses and insights related to the measurement of campaign outcomes, Rx, patient journey, and supporting the evolution of the DeepIntent product suite. Activities in this position include developing and deploying models in production, reading campaign results, analyzing medical claims, clinical, demographic and clickstream data, performing analysis and creating actionable insights, summarizing, and presenting results and recommended actions to internal stakeholders and external clients, as needed.

• Explore ways to create better predictive models.
• Analyze medical claims, clinical, demographic and clickstream data to produce and present actionable insights.
• Explore ways of using inference, statistical, and machine learning techniques to improve the performance of existing algorithms and decision heuristics.
• Design and deploy new iterations of production-level code.
• Contribute posts to our upcoming technical blog.

Who You Are:

• Bachelor’s degree in a STEM field, such as Statistics, Mathematics, Engineering, Biostatistics, Econometrics, Economics, Finance, or Data Science.
• 5+ years of working experience as a Data Scientist or Researcher in digital marketing, consumer advertisement, telecom, or other areas requiring customer-level predictive analytics.
• Advanced proficiency in performing statistical analysis in Python, including relevant libraries, is required.
• Experience working with data processing, transformation and building model pipelines using tools such as Spark, Airflow, and Docker.
• You have an understanding of the ad-tech ecosystem, digital marketing and advertising data and campaigns or familiarity with the US healthcare patient and provider systems (e.g. medical claims, medications).
• You have varied and hands-on predictive machine learning experience (deep learning, boosting algorithms, inference…).
• You are interested in translating complex quantitative results into meaningful findings and interpretable deliverables, and communicating with less technical audiences orally and in writing.
• You can write production level code, work with Git repositories.
• Active Kaggle participant.
• Working experience with SQL.
• Familiar with medical and healthcare data (medical claims, Rx, preferred).
• Conversant with cloud technologies such as AWS or Google Cloud.

Company: Web5 Solution (Software & IT Development Firm) Location: Gurugram

The Growth Promise: This is a "Fast-Track" role. We don't want you to be an executive forever; we are hiring you to be a future Sales Head.

Why Join Us? (Your Learning & Earnings)

• Sales Masterclass: You will learn high-ticket B2B sales, negotiation psychology, and how to close deals with international and domestic clients.
• Uncapped Earning Potential: While your base is ₹20k–₹30k, our incentive structure is designed so that a high-performer can double their monthly take-home through commissions.
• Future Leadership: As Web5 Solution expands, you will be the first in line to lead your own sales team. We value loyalty and results above seniority.

Key Responsibilities

• Client Acquisition: Master the art of the pitch - from cold outreach to closing meetings.
• Market Analysis: Identify emerging industries that need Web5 solutions before our competitors do.
• Relationship Management: Learn to manage a "Pipeline" and move clients from interest to contract.

Requirements

• 0–10 years of experience. We value attitude over degrees.
• Exceptional communication skills (English & Hindi).
• A "never-quit" attitude. You see challenges as a way to sharpen your skills

Responsibilities:

●     Develop and execute test cases, scripts, plans, and procedures (manual and automated) to ensure the quality of software products

●     Identify, record, document thoroughly, and track bugs

●     Perform thorough regression testing when bugs are resolved

●     Collaborate with cross-functional teams to ensure quality throughout the software development life cycle

●     Investigate the causes of non-conforming software and provide solutions

●     Team handling capabilities

Requirement:

●     Bachelor’s degree in computer science, Engineering, or related field

●     6+ years of experience in software testing

●     Strong knowledge of software QA methodologies, tools, and processes.

●     Experience in writing clear, concise, and comprehensive test plans and test cases

●     Hands-on experience with both white box and black box testing

●     Experience working in an Agile/Scrum development process using tools like JIRA.

●     Hands-on Experience in Behavior-Driven Framework, e.g. Cucumber

●     Experience in web automation testing using tools like selenium and API automation tools like RestAssured, karate etc.

●     Experience with performance and/or security testing is a plus

●     Strong analytical and problem-solving skills

●     Excellent communication and teamwork skills

About Company - 

They run a Programmatic-first, Full Funnel Growth Marketing Platform for Digital Marketers and Media Agencies globally.

We combine Machine Learning with Human Intelligence to discover unique audience insights and optimize results across the marketing funnel.

We leverage the power of programmatic media to help brands expand their targeted reach, and deliver non-linear growth by optimizing the marketing funnel for brand lift, search lift and incrementality.

Responsibilities-

1. Ability to translate client briefs into specific actionable items for different departments

2. Handling client engagements at the senior level with client team.

3. Articulate brand requirements and communicate the same to the teams internally

4. Handle the operational job requirements.

5. Should be able to minute meetings clearly

6. Follow up with internal teams for job delivery as per time lines committed

7. Should wear the brand hat and be able to disseminate information internally

8. Conduct market research and data to find out need gaps in the product.

9. Keep a track on competition activities.

10. Ensure all financials in terms of job estimation, billing and collection happens on time.

11. Be the brand custodian 

Requirement -

- Strong Experience in Client servicing and customer success

- Required skills - program management, presentation/communication, number crunching.

- Experience - 3-4 years in the digital media industry

- Not looking for folks with experience outside of the digital media industry

- Someone who have worked with solution providers or publishers managing clients

• Identify & document the Scope of Work (SOW), objectives and any assumptions.
  
• Prepare cost estimates for manpower + materials, and ensure we are charging accurately for our projects.
  
• Develop a detailed project plan, and monitor progress using appropriate systems, tools and techniques.
  
• Establish and maintain relationships with third parties/vendors.
  
• Seek opportunities for improvement and suggest new projects.
  

• Ensure availability of all the tools and resources before initiating a project.
  
• Prepare and maintain timelines for the effective tracking and completion of the project.
  
• Delegate to internal resources and vendors effectively, and track progress ensuring the project runs on schedule.
  
• Coordinate with all the internal and external stakeholders for information, approvals, resolving issues, status updates, answering queries etc. While maintaining transparent communication.

• Maintain timesheet logs for all the resources.
  
• Create and maintain comprehensive project documentation, plans and reports.
  
• Ensure standards and requirements are met through conducting quality assurance tests.
  
• Analyze and Highlight potential risks or malfunctions and act proactively to resolve issues ensuring the project stays on time and on budget.

• Excellent communication (verbal & written), interpersonal and consulting skills
  
• Ability to manage multiple teams and projects simultaneously
  
• Excellent organization and time management skills
  
• Ability to meet targets and deadlines.
  
• Quick thinking, problem solving skills
  
• Detail-oriented
  
• Budget management
  
• Confident, pleasant personality, ambitious, self-motivated.
  

​We offer competitive compensation and benefits.

Fullstack Developer/Architect/Programmer:

1. 8-10 years experience as Developer/Programmer.
2. Should have an expertise in Core Java, Java & J2ee
3. Built MVC based Web Application Using JSP/Struts framework
4. Experience in Webservices-Restful
5. Experience in Application Servers like Tomcat and WebLogic
6. Good Knowledge of implementing JMS messaging services
7. Good knowledge of HTML5,CSS and JavaScript – Angular.js,Bootstrap, React.js
8. Should have skills in Spring 3.x, Hibernate, Weblogic 12c Implementation