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Work Location - Bangalore (Should be ready to relocate)
Kindly go through the JD & company details if interested please revert with below details & acknowledge with your availability.
Mode of work: Hybrid weekly 2/3 Times Mumbai/ Bangalore location.
While you may already know about Wissen and the company history, here is a quick rundown for you.
INTERVIEW PROCESS:
- Hacker earth assessment
- Round 1
- Round 2
- Final Round
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 consists of 550+ 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, MSCI, State Street, Flipkart, Swiggy, Trafigura, GE to name a few.
Website : www.wissen.com
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.
Job Description:
As per our conversation, please find below the job description for your review.
· Strong written/verbal communication skills
· Minimum 4-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork join 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.
· While you may already know about Wissen and the company history, here is a quick rundown for you.

Development Skills:
● Experience in developing real time software using C++ on Linux platform Design and
develop C++ Microservices for use in distributed systems.
● Experience with RESTful API development
● Experience installing, configuring, administering, monitoring, and troubleshooting
message brokers, ESB such as RabbitMQ, Kafka, MuleSoft etc
● Experience working with cloud and containerization technologies including AWS,
Google Cloud, Docker, Kubernetes etc.
● Improve quality of existing code base through debugging, re-factoring, and improving
unit and system tests
● Ability to work in a fast-paced environment with Agile mindset.
● Experience working with Scrum APM practices and tools including Jira, Confluence,
Git etc.
Networking Skills
● Understanding of Core Network protocols
● Experience in developing or integrating with real-time systems for networking
products
● Experience in developing with Software Defined Network Elements is an asset
● Understanding of Network protocols and access (MPLS, OpenBGP, OpenFlow) is an
asset
● Understanding of networking principles and concepts (SDN-WAN, SDN, labelling,
routing etc.) is an asset
● Understanding of 3GPP/5G network management, including Radio configuration,
QoS management, SLA management, Netconf, SNMP, directives is an asset
About the Company-
AdPushup is an award-winning ad revenue optimization platform and Google Certified Publishing Partner (GCPP), helping hundreds of web publishers grow their revenue using cutting-edge technology, premium demand partnerships, and proven ad ops expertise.
Our team is a mix of engineers, marketers, product evangelists, and customer success specialists, united by a common goal of helping publishers succeed. We have a work culture that values expertise, ownership, and a collaborative spirit.
Job Overview- Java Backend- Lead Role :-
We are seeking a highly skilled and motivated Software Engineering Team Lead to join our dynamic team. The ideal candidate will have a strong technical background, proven leadership experience, and a passion for mentoring and developing a team of talented engineers. This role will be pivotal in driving the successful delivery of high-quality software solutions and fostering a collaborative and innovative work environment.
Exp- 5+ years
Location- New Delhi
Work Mode- Hybrid
Key Responsibilities:-
● Leadership and Mentorship: Lead, mentor, and develop a team of software engineers, fostering an environment of continuous improvement and professional growth.
● Project Management: Oversee the planning, execution, and delivery of software projects, ensuring they meet quality standards, timelines, and budget constraints.
● Technical Expertise: Provide technical guidance and expertise in software design, architecture, development, and best practices. Stay updated with the latest industry trends and technologies. Design, develop, and maintain high-quality applications, taking full, end-to-end ownership, including writing test cases, setting up monitoring, etc.
● Collaboration: Work closely with cross-functional teams to define project requirements, scope, and deliverables.
● Code Review and Quality Assurance: Conduct code reviews to ensure adherence to coding standards, best practices, and overall software quality. Implement and enforce quality assurance processes.
● Problem Solving: Identify, troubleshoot, and resolve technical challenges and bottlenecks. Provide innovative solutions to complex problems.
● Performance Management: Set clear performance expectations, provide regular feedback, and conduct performance evaluations for team members.
● Documentation: Ensure comprehensive documentation of code, processes, and project-related information.
Qualifications:-
● Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
● Experience: Minimum of 5 years of experience in software development.
● Technical Skills:
○ A strong body of prior backend work, successfully delivered in production. Experience building large volume data processing pipelines will be an added bonus.
○ Expertise in Core Java.
■ In-depth knowledge of the Java concurrency framework.
■ Sound knowledge of concepts like exception handling, garbage collection, and generics.
■ Experience in writing unit test cases, using any framework.
■ Hands-on experience with lambdas and streams.
■ Experience in using build tools like Maven and Ant.
○ Good understanding and Hands on experience of any Java frameworks e.g. SpringBoot, Vert.x will be an added advantage.
○ Good understanding of security best practices. ○ Hands-on experience with Low Level and High Level Design Practices and Patterns.
○ Hands on experience with any of the cloud platforms such as AWS, Azure, and Google Cloud.
○ Familiarity with containerization and orchestration tools like Docker, Kubernetes and Terraform.
○ Strong understanding of database technologies, both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB, Couchbase).
○ Knowledge of DevOps practices and tools such as Jenkins, CI/CD.
○ Strong understanding of software development methodologies (e.g., Agile, Scrum).
● Leadership Skills: Proven ability to lead, mentor, and inspire a team of engineers. Excellent interpersonal and communication skills.
● Problem-Solving Skills: Strong analytical and problem-solving abilities. Ability to think critically and provide innovative solutions.
● Project Management: Experience in managing software projects from conception to delivery. Strong organizational and time-management skills.
● Collaboration: Ability to work effectively in a cross-functional team environment. Strong collaboration and stakeholder management skills.
● Adaptability: Ability to thrive in a fast-paced, dynamic environment and adapt to changing priorities and requirements.
Why Should You Work for AdPushup?
At AdPushup, we have
1. A culture of valuing our employees and promoting an autonomous, transparent, and ethical work environment.
2. Talented and supportive peers who value your contributions.
3. Challenging opportunities: learning happens outside the comfort-zone and that’s where our team likes to be - always pushing the boundaries and growing personally and professionally.
4. Flexibility to work from home: We believe in work & performance instead of measuring conventional benchmarks like work-hours.
5. Plenty of snacks and catered lunch.
6. Transparency: an open, honest and direct communication with co-workers and business associates.

Required Skills:
- 4+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast-paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Role / Purpose - Lead Developer - API and Microservices
Must have a strong hands-on development track record building integration utilizing a variety of integration products, tools, protocols, technologies, and patterns.
- Must have an in-depth understanding of SOA/EAI/ESB concepts, SOA Governance, Event-Driven Architecture, message-based architectures, file sharing, and exchange platforms, data virtualization and caching strategies, J2EE design patterns, frameworks
- Should possess experience with at least one of middleware technologies (Application Servers, BPMS, BRMS, ESB & Message Brokers), Programming languages (e.g. Java/J2EE, JavaScript, COBOL, C), Operating Systems (e.g. Windows, Linux, MVS), and Databases (DB2, MySQL, No SQL Databases like MongoDB, Cassandra, Hadoop, etc.)
- Must have experience implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee and frameworks such as Spring Boot for Microservices
- Should have Advanced skills in implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee or similar frameworks such as Spring Boot for Microservices
- Appetite to manage large-scale projects and multiple tracks
- Experience and knowhow of the e-commerce domain and retail experience are preferred
- Good communication & people managerial skills
-
Design and implement APIs and backend systems to support the functionality of our live stream shopping mobile application
-
Integrate with third-party services and APIs to enable features such as payment processing, real-time inventory updates, and user authentication
-
Collaborate with the front-end development team to ensure smooth and seamless integration between the front-end and backend systems
-
Monitor and optimize the performance and scalability of our backend systems to ensure a seamless user experience
-
Write clean, maintainable, and well-documented code
-
Stay up-to-date with industry best practices and new technologies
-
Bachelor's or Master's degree in Computer Science or a related field
-
3+ years of experience in backend development
-
Strong knowledge of at least one programming language, such as Java, Python, or Ruby
-
Experience with RESTful APIs and microservices
-
Experience with database design and SQL
-
Experience with cloud computing platforms such as Amazon Web Services or Google Cloud Platform
-
Excellent problem-solving and communication skills
-
Experience with AWS
-
Experience with live stream technology or e-commerce platforms
-
Experience with agile development methodologies
-
Experience with containerization and orchestration platforms such as Docker and Kubernetes

Responsibilities:
- Taking initiative in the Design and Development of Android applications.
- Ship reliable software practicing robust software design and in-depth code reviews.
- Design major software components, systems, and features and implement full-stack app foundation features and core app features.
- Take ownership, design, develop and deploy in a collaborative environment with other team members
- Knowledge of architect solutions using innovative technology ideas and industry-leading methodologies.
Requirements:
- Good hands-on experience in developing and deploying Android apps Android native/cross-platform.
- Comfortable with JAVA and Kotlin both.
- Experience implementing integrated solutions with APIs built using RESTful web services.
- Strong analytical and debugging skills.
- Good understanding of Data Structure and Algorithms.
- Adapt to a dynamic work environment. Stay updated with the latest in technology and always think customer first.
- Study and understand the product specifications thoroughly to design appropriate software solutions. Suggest improvements and optimize existing implementations.
- Ability to identify and deliver POCs and Demos in a record timeframe.
- Encourage and coordinate with the team around new technologies, processes, and approaches.
- Proficiency in various Design Principles and app development methodologies.
- Strong communication skills with a people-first approach without compromising on engineering tasks
We are looking for a Staff Engineer who is an expert in Javascript (Node.js). We are looking for engineers who work like owners as you will be tasked with leading the development of one of our 5 major components of the Hatica platform. You will work with experienced engineers and on a modern cloud-native stack built using Javascript (React and Node) and Golang with an in-house real-time data analytics engine on Postgres and Elasticsearch among others.
Experience - 3 - 7 years
Responsibilities
- Build and maintain our backend microservices powering the core of our software platform
- Help your fellow DevOps and junior engineers working on our cloud infrastructure and other components of our product to ensure high code quality and robust architecture.
- Work with your team members to maintain high uptime and reliability of our core backend and APIs
Requirements and Qualifications
- BE/BTech in Computer Science or Engineering
- Minimum of 4 years of experience with backend development
- 3 years of experience with Node.js
- Familiarity with newer specifications of EcmaScript
- Understanding of GraphQL
- Ability to write and maintain high quality code
- Understanding of web coding patterns
- Solid understanding of microservices architecture
- Understanding of AWS and cloud-native technologies is highly preferred
Benefits
- Work with the best and brightest on a global cutting-edge SaaS product
- Performance oriented culture built on fairness and inclusivity
- Competitive Compensation
- Flexible work hours
- Fully remote team, work from anywhere
Job Type: Full-time


