
Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Bangalore/Mumbai
Java Developer – Job Description
Wissen Technology is now hiring for a Java Developer - Mumbai 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+ 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 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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Job Summary
We are looking for a Senior Backend Engineer with strong experience in Java, Spring Boot, and Microservices architecture. Candidates with server-side Kotlin development experience are highly preferred. Strong software engineering fundamentals, REST API development expertise, and experience building enterprise-scale applications are essential.
The ideal candidate should be passionate about clean code, testing, scalability, and product/platform engineering.
Key Responsibilities
- Design, develop, and maintain scalable backend applications using Java and/or Kotlin.
- Build and enhance RESTful APIs and microservices-based applications.
- Develop high-performance, secure, and reliable enterprise applications.
- Participate in system design, architecture discussions, and technical decision-making.
- Write clean, maintainable, and well-tested code following industry best practices.
- Implement and maintain automated unit tests, integration tests, and other testing strategies.
- Collaborate with Product, Engineering, and DevOps teams to deliver high-quality solutions.
- Troubleshoot production issues and optimize application performance.
- Mentor junior developers and contribute to engineering excellence initiatives.
Required Skills
- 6–8+ years of backend development experience.
- Strong proficiency in Java.
- Experience with server-side Kotlin (preferred) or willingness to learn and work extensively in Kotlin.
- Hands-on experience with Spring Boot and Microservices architecture.
- Strong experience developing REST APIs.
- Experience building enterprise-grade applications.
- Good understanding of software design patterns and object-oriented programming principles.
- Strong knowledge of unit testing frameworks such as JUnit, Mockito, or equivalent.
- Experience with Test-Driven Development (TDD) is highly desirable.
- Knowledge of CI/CD pipelines and version control systems such as Git.
- Experience working with relational and/or NoSQL databases.
Aadrila Technologies Pvt Ltd. is the largest data, analytics, automation, and decisioning solution provider to financial intuitions, catering to the entire customer lifecycle from onboarding to diligence. Aadrila Technologies provides solutions that enable systemic fraud prevention, risk management, compliance, and automation through superior data engineering and deep tech (NLP and Deep Learning) applications. In the B2B SaaS market, Aadrila Technologies Pvt. Ltd. is an undisputed leader. Based in Mumbai, Andheri, it has ~90% market share in the motor insurance underwriting data providers market.
Senior Software Engineer 4-6yrs of work exp
As a Senior Software Engineer at AADRILA TECHNOLOGIES PVT LTD, you will be responsible for designing, developing, and deploying high-quality API solutions. You will collaborate with cross-functional teams to build innovative and performant applications.
Responsibilities:
- Write reusable, testable, and efficient code.
- Design and implement low-latency, high-availability, and performant RESTful APIs.
- Implement security and data protection measures.
- Integrate data storage solutions into software systems.
- Develop, test, tune for performance, and deploy web services.
- Collaborate with the product team to build innovative, robust, and user-friendly features
Requirements:
Must-Haves:
- Excellent analytical and problem-solving skills.
- Proven experience in the software development lifecycle.
- Solid coding experience in Python.
- Good understanding of Object-Oriented Concepts and Design Patterns.
- Knowledge of Amazon Web Services (AWS) APIs deployment and management.
- Experience working with Multithreading/Multiprocessing.
- Good working knowledge of programming in a Linux environment.
- Acquaintance with Web Stacks and RESTful APIs.
- Experience in best code deployment practices.
Highly Desired:
- Experience with NoSQL databases like MongoDB.
- Familiarity with AWS Serverless Stack (API Gateway, Lambda, SQS, Cloudwatch etc.)
- Familiarity with infrastructure as code tools (serverless and Terraform).
Experience and Qualification:
- Minimum of 3+ years of relevant experience.
- Bachelor's or Master's degree in Computer Science, Computer Engineering, or Information Technology.
Join our dynamic team and work in a challenging environment where you will have the opportunity to make a significant impact. AADRILA TECHNOLOGIES PVT LTD offers competitive compensation, professional development opportunities, and a collaborative work culture. Apply now and be part of our innovative software engineering team.
Primary Skills:
.Net/.Net Core, C#, OOPS and SQL Server as a key technology, which covers frontend and backend work. Knowledge of DevOps (building and deployment) and the Cloud is nice to have.
Roles & Responsibilities
Participate in requirements analysis.
Collaborate with internal teams to produce software design and architecture.
Write clean, scalable code using .NET programming languages.
Test and deploy applications and systems.
Revise, update, refactor and debug code.
Improve existing software.
Eligibility
3+ years of experience in building web applications. Passion for building and delivering great software with a strong sense of ownership
Advanced proficiency in C#, very clear OOPS concepts, In-depth knowledge of the .NET framework, ASP.NET, MVC, Web API, REST APIs, OAuth 2.0/ Authentication/ Authorization
Strong expertise in SQL programming, with experience of writing & optimizing queries that access/process millions of records
Good to have any scripting(powershell) knowledge, JS based UI Frameworks
Outstanding analytical, problem-solving, and communication skills
Experienced in complex logic designing and implementation
Should have worked in Agile development environment and best practices
Good to have experience in secure development practices
Required skills:-
2+ years of experience in the Development of 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:
2+ 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.
About Simpl
The thrill of working at a start-up that is starting to scale massively is something else. Simpl (FinTech startup of the year - 2020) was formed in 2015 by Nitya Sharma, an investment banker from Wall Street and Chaitra Chidanand, a tech executive from the Valley, when they teamed up with a very clear mission - to make money simple, so that people can live well and do amazing things. Simpl is the payment platform for the mobile-first world, and we’re backed by some of the best names in fintech globally (folks who have invested in Visa, Square and Transferwise), and has Joe Saunders, Ex Chairman and CEO of Visa as a board member.
Everyone at Simpl is an internal entrepreneur who is given a lot of bandwidth and resources to create the next breakthrough towards the long term vision of “making money Simpl”. Our first product is a payment platform that lets people buy instantly, anywhere online, and pay later. In the background, Simpl uses big data for credit underwriting, risk and fraud modelling, all without any paperwork, and enables Banks and Non-Bank Financial Companies to access a whole new consumer market.
In place of traditional forms of identification and authentication, Simpl integrates deeply into merchant apps via SDKs and APIs. This allows for more sophisticated forms of authentication that take full advantage of smartphone data and processing power.
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We’re looking for polyglot developers who love to code. You should have >3 years of experience building high-quality products. You should have the ability to write clean code and must’ve worked on one of Ruby, NodeJS, Golang or Python
Responsibilities
- Develop new features - build POCs, get feedback, and scale is our default mode
- Building reusable and platform specific components
- Translating designs and wireframes into high-quality code
- Optimizing services for maximum performance
- Ensure faster release cycles by managing distribution over the cloud
Requirements
- Hands-on experience in all aspects of software development - analysis, coding, writing tests, deployment, the works.
- Knowledge of relational databases, SQL, ACID and distributed locking
- Solid OOPS understanding.
- Good exposure to building distributed systems, micro-services architecture.
- Continuous delivery experience
- Exposure to building platforms (not just products) would be a plus
- HTML/CSS/ES6 Javascript, Java 8 and any Java based web framework
- Adobe experience Manager (AEM) Apache Sling, JCR, OSGI
- Good knowledge in Apache Sling framework
- Good knowledge in Java content repository API
- Good knowledge in Apache Jack rabbbit framework
- Knowledge of OSGI and Declarative Services
- Strong understanding of REST Principles and Hands on experience REST based API development
- Knowledge of Patterns and good practices to design and develop quality and clean code
- Experience in Pair programming and code reviews
- Experience with testing at all levels unit, integration, functional and performance
- Experience in Agile Project (Scrum or SAFe) execution is a must
- Familiarity with git, basic git branching strategies, working in a peer-reviewed environment,able to code to existing patterns/styles
- Familiarity with task management, bug tracking and wiki-based documentation tools like Jiraand confluence
- AEM BE developers must have modern ES6 javascript experience as well as java developer experience
- Must be comfortable working with AEM workflows, scheduled jobs, creating/modifying jcr
- nodes via java code, and accessing REST endpoints via java code
- Ability to create custom AEM CQ components and a good exposure to both core and
- foundation components that can be inherited in AEM
- Good understanding of AEM web development framework using Apache Sling
- Create multiple OSGI Bundles in the AEM stack based on the requirements of the Project
About Recko:
Recko was founded in 2017 to organise the world’s transactional information and provide intelligent applications to finance and product teams to make sense of the vast amount of data available. With the proliferation of digital transactions over the past two decades, Enterprises, Banks and Financial institutions are finding it difficult to keep a track on the money flowing across their systems. We are building products which enable them to handle and monitor massive volumes of transactional data without writing a single line of code and ensure the right amounts are flowing between the right beneficiaries, with the right deductions at the right time. Over the last few months, we have grown to a point where we are processing more than 25 million transactions monthly for our customers.
Recko is a Series A funded startup, backed by marquee investors like Vertex Ventures, Prime Venture Partners and Locus Ventures. Traditionally enterprise software is always built around functionality. We are reimagining enterprise software to be built around the user. We believe software is an extension of one’s capability, and it should be delightful and fun to use.
Working at Recko:
We believe that great companies are built by amazing people. At Recko, We are a group of young Engineers, Product Managers, Analysts and Business folks who are on a mission to bring consumer tech DNA to enterprise fintech applications. The current team at Recko is 50 members strong with stellar experience across fintech, e-commerce, digital domains at companies like Flipkart, PhonePe, Ola Money, Belong, Razorpay, Grofers, Jio, Oracle etc. We are growing aggressively across verticals.
About the Role:
What are we looking for:
1. 2+ years of experience with Java MVC frameworks like Spring / Dropwizard / Play and with
MySQL / Oracle / PostgreSQL.
2. Experience building at least one application from scratch.
3. Understanding of at least one test frameworks and basic system administration.
4. Experience with cache store / message broker like Redis / RabbitMQ / Kafka.
5. Good to have: Experience with NoSQL databases like Cassandra, MongoDb, Neo4j, ElasticSearch. etc and Understanding of different concurrency models used in Akka, node.js, Go, RxJava etc
6. Interest in learning new languages / framework as needed.
7. A growth mindset and passionate about building things from the ground up and most
importantly, you should be fun to work with.
As a backend developer at Recko, you will:
1. Design and implement microservices with high reliability and scalability.
2. Be involved and participate in the overall application lifecycle.
3. Define and communicate technical and design requirements.
4. Learn about new technologies and incorporate them.
5. Improve engineering standards, tooling, and processes.
6. Collaborate with multi-disciplinary team of designers, developers and system administrators.











