
Job Description:
As per our conversation, please find below the job description for your review.
· Strong written/verbal communication skills
· Minimum 5-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin 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.

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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• 3+ years of hands-on experience developing and testing highly scalable software.
• Excellent coding skills in Java 17 or above.
• Very good understanding of any RDBMS and/or messaging queues
• Proficient in Core java, Solid foundation in object-oriented development and design patterns.
• Excellent problem-solving skills and attention to detail.
• Ability to engineer complex features/systems from scratch and drive it to completion.
• Good knowledge of multiple data storage systems.
• Prior experience in micro services and event driven architecture.
• Experience with Spring boot and Spring Security Framework
• Spring web-flux understanding is desirable
• Understand OWASP Top 10/CWE, DAST and SAST
This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on:
* Designing complex algorithms
* Building high-performance, memory-efficient systems
* Owning deep backend logic that actually moves the needle
You will work close to the core engine of the product, not the edges.
What You’ll Be Trusted With
* Architect and build backend systems that must perform under load
* Design and implement custom algorithms for real-world, non-trivial problems
* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency
* Build backend services where latency, throughput, and correctness matter
* Own document & PDF processing pipelines end-to-end:
-Composition
-Rendering
-Optimization
- High-volume generation
* Make hard technical decisions and stand by them
Non-Negotiable Skills
* Exceptional Java expertise (Core Java, Spring Boot, Java 8+)
* Strong command over:
- Data structures & algorithms
- Multithreading & concurrency models
- JVM internals & memory management
* Proven experience building custom algorithms (this will be evaluated)
* Deep backend engineering experience with Spring / Spring Boot
* Strong understanding of:
- API design principles
- Fault tolerance & resilience
- Performance tuning & profiling
* Ability to reason about time complexity, space complexity, and trade-offs
* Strong database fundamentals (query optimization, indexing, transactions)
* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ)
* Exposure to Kubernetes-based deployments or large-scale microservices
Interview Focus (Be Prepared)
* Algorithm design & problem solving
* Deep Java fundamentals
* System design discussions (backend-heavy)
* Performance tuning scenarios
* Real-world debugging and optimization challenges
We are India’s fastest-growing digital trust platform offering services such as background verifications, reference checks, employee/staff onboarding, etc. We have completed more than 500+ million checks across 3000+ happy clients and since its inception, the company has shown continuous uptrend growth in an ever-changing business environment. As an organization, we are self-sustainable with positive cash flows.
At OnGrid, we are focused on redefining and reimagining Trust. We are leveraging APIs to build a digital trust platform all while being accountable that provides verified credentials instantly coming from the source directly. Having built the basic pillars of trust, we now want our imaginations to be let loose and think of avenues not explored and ways never implemented before. In this pursuit, we are looking for a motivated Staff Engineer (Backend) with experience in building high-performing, scalable, enterprise-grade applications, joining us, driving this vision, and taking it to a larger scale. If you are a visionary, always on the lookout for finding the right solutions, and a technology geek, constantly seeking to learn and improve your skillset, then you are the type of person we are looking for.
Roles & Responsibilities -
● Develop new user-facing features.
● Work alongside product to understand our requirements, and design, develop and iterate, think through the complex architecture.
● Writing clean, reusable, high-quality, high-performance, maintainable code.
● Encourage innovation and efficiency improvements to ensure processes are productive
● Ensure the training and mentoring of the team members
● Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed.
● Research and apply new technologies, techniques, and best practices.
Requirements -
• Bachelors/Masters in Computer Science or a related field
• 5 - 10 years of prior relevant experience
• Experience with web technologies and microservices architecture
• Java, Spring framework
• MySQL, Mongo, Solr, Redis,
• Kubernetes, Docker
• Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
• Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story • Ability to think and analyze both breadth-wise (client, server, DB, control flow) and depth-wise (threads, sessions, space-time complexity) while designing and implementing services
• Exceptional design and architectural skills
• Experience of cloud providers/platforms like GCP and AWS
We’re looking for an experienced Engineering Manager with strong tech leadership and hands-on expertise in Java + Spring Boot.
What you’ll do:
• Lead high-performing engineering teams
• Drive architecture, system design & scalable backend solutions
• Balance 60% people management + 40% hands-on coding
• Own CI/CD, integrations & high-quality releases
What we need:
• 10+ yrs experience (3+ yrs in EM role)
• Strong in Java, Spring Boot, microservices & cloud
• Startup mindset, ownership & solid communication skills
📍 Location: Bengaluru (On-site)
Required Skills:
"Overall 5-9 years of experience
Experience of working in Agile projects and aware of key Agile concepts
Good Problem solving and communication skills
Team player, hard working and innovative in his approach
Having stretch mindset and eagerness to learn/adopt new frameworks.
Expertise in Java 8 version or later
Hands on coding experience in Core Java ,Java, J2ee
Should have experience in Spring Boot
Should have good experience in Hibernate, Spring DATA JPA
Experience in RestFull Web services and microservices
Hands on knowledge in JMS and messaging Queues
Hands on Knowledge in Open API spec / swagger 2.0
Hands on knowledge in writing unit test cases using java test framework (Junits, Mockito)
Strong Ability to troubleshoot vulenerabilities and sonar issues and remediate with appropriate sonar rules compliant solution.
Should have hands on experience in SDLC
Should have an excellent client interaction background with Smart, Innovative, Enthusiastic, Proactive
Nice to Have
------------
Knowledge in kafka integeration
knowledge in OCP4 configs and deployment
Knowledge on secret Vaulting
Experience working in Agile project
- Knowledge on CI/CD process.

Construction & Infrastructure is one of the industries, with the most complex problems in Supply Chain and they are fundamentally reengineering the way construction materials get procured. Their Clients include the biggest names in India & the World– The
LafargeHolcim Group, JSW Group, The Tatas and many others. They are backed by some of the world’s top marquee funds in their journey to create transparency and standardization to an otherwise opaque industry.
Your responsibilities:
● Understand the business context and build high quality code using proven design patterns
● Develop, test and deploy integrations required to meet business requirements
● Carry out unit tests and other quality control mechanisms to inform and validate the code and design
● Utilizing and monitoring cloud infrastructure resources (such as AWS, Azure) efficiently
● Participate in a highly fluid environment applying agile software development principles
● Ensure the coding standards are on-par with the best in the industry
Educational Qualifications:
● Bachelor's or Master’s degree in a quantitative field (e.g. Mathematics, Engineering, Computer Science).
Must have skills:
● 3+ years of work experience with mobile/web development
● Experience in working with either of languages: Go, Java, Scala
● Strong understanding of relational and non-relational databases (MySQL, PostgreSQL, MongoDB,
● Cassandra)
● Strong understanding of Message brokers
● Must have hands on experience in Restful APIs
● Must have a strong foundation of Data structures and Algorithms
● Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions
● or approaches to problems
● Ability to deploy features on a daily basis: should be good at time management and prioritization
● Hands-on experience in CI/CD principles and TDD
● Strong written and verbal English communication skills
Good to have skills:
● Experience in event-driven & asynchronous I/O frameworks
● Exposure to business process and workflow automation
● Working experience in process driven and data intensive business applications
● Experience in working on web infrastructure with React.js and React Native
Professional traits:
● Self-motivated, persistent and “Never Give Up” attitude
● Passion for innovation and adaptability to a lean startup culture
● Ability to work with minimal supervision, independently and / or as a member of a team
Company Profile
App Innovation Technologies is leader in Mobile and Web based solutions development. With our extensive knowledge of this industry, our customers receive the edge needed to make their projects a true success. Our team of developers, analysts, designers, testers and project managers will complete projects on time to the agreed specifications with Mobile, Social, Cloud and Analytics’ expertise.
We also provide a caravan of web-based products and Software services. AIT is a reputed web/Software development company with its headquarters based at Coimbatore, India. We have a creative team of skilled professionals who have in depth knowledge in various technologies including open source technologies and Microsoft technologies to service our valuable clients. Please visit our website https://www.aitechindia.com for more details.
Job Description
We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and tablet computers. Your primary focus will be development of iOS applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.
Responsibilities:
• Design and build applications for the iOS platform
• Ensure the performance, quality, and responsiveness of applications
• Collaborate with a team to define, design, and ship new features
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, organization, and automatization
Skills
• Proficient with Objective-C or Swift.
• Familiarity with RESTful APIs to connect iOS applications to back-end services
• Knowledge of other web technologies and UI/UX standards
• Understanding of Apple’s design principles and interface guidelines
• Knowledge of low-level C-based libraries is preferred
• Familiarity with cloud message APIs and push notifications
• Knack for benchmarking and optimization
• Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)
• Familiarity with continuous integration
Education Qualification:
• Undergraduate in Engineering related to Computer Science and Information Technologies and Postgraduate in Computer Science
• Shouldn’t have Backlog or Arrear.
• Must have completed at least 3 month course.
• Should be an Analytical thinker and Self Motivator
1.Java, Spring Boot, Microservices, Spring, Hibernate
2. Handling Large teams
3. Expertise in Technial and People Management.
Experience: 5+ Years
An Architect is a hands-on, talented, innovative, and practical individual with functional experience to design, implement and support the delivery of core products and product components.
- Capable of working under minimal direction and exercising considerable latitude, they will provide technical expertise in developing solutions to complex software engineering problems, which require frequent use of ingenuity and creativity.
- Experienced in designing application framework solutions, performing architectural analysis, and identifying issues and provide solutions for the business problems.
- Sound functional knowledge of application architecture service architecture, code modularity, data synchronisation, customisable workflow management, partner application integration and API developer frameworks.
- Responsibilities:
- Lead the design and development of new architecture and major functional upgrades for the most advanced capabilities
- Provide technical guidance and mentorship to engineers, designers, and developers.
- Engage cross-organizational teams such as Product Management, Integrations, Services, Support, and Operations, to ensure the success of overall software development, implementation, and deployment.
- Requirements:
Ideal candidate should have
- 7+ years of system implementation experience
- Experience with any of the following languages like Java / Nodejs / ROR / Python
- Expertise in micro service / Data modelling / AWS / Messaging
- Expertise in building scalable & reliable systems
- Good Experience in working with technologies like AWS, Redis,
- Experience in messaging systems like SQS/RabbitMQ
- Good knowledge of caching, Databases, distributed systems.
- Strong problem solving and analytical skills
- Good experience with Devops
- Strong development experience in Core Java, J2EE, Spring Boot, Oracle SQL/PLSQL and App servers like WebLogic, JBOSS, Unix
- Good Knowledge of SOAP and REST API
- Should have knowledge in SOLID Principles & Design Patterns
- Should have working experience in UI like JSF, JSP, Html, CSS and Javascript / Jquery
- Experience with full-lifecycle development (i.e. design, coding, testing, debugging, etc.)
- Working experience to fix common vulnerabilities and security threat in SOA\Microservices applications
- Knowledge in OWASP Standards and Working knowledge in fixing security issues, data encryption and cryptography.
- Prior experience and knowledge of security tools like Fortify, Sonatype and webInspect is a plus
- Good to have knowledge and working experience in Angular JS
- Translate business requirements into detailed specs/designs
- Design thinking while arriving at solution
- Strong technical troubleshooting, diagnosing and problem-solving skills
- Ability to work with distributed teams in a collaborative and productive manner
- Solving complex business and workflow issues with solid scalable technical solutions
- Must be a self-motivated, proven performer who enjoy challenging assignments in a high-energy, fast growing workplace
- Agility and ability to adapt quickly to changing requirements and scope and priorities
- Good in communication, both written and verbal
- Should have Agile scrum experience.
- Team Player with very good attitude
- Attention to detail and focus on quality
- Knowledge in financial services domain is a plus
- Good to have knowledge on Static AppSec Testing (SAST) and Dynamic AppSec Testing (DAST)







