Java Developer

Experience: 5 TO 8

Location: MUMBAI

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 TO 8 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 Us:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.

Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. 

We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. 

Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Looking for a passionate developer and team player who wants to learn, contribute and bring

fun & energy to the team. We are a friendly startup where we provide opportunities to explore

and learn a lot of things(new technology/tools etc.,) in building quality products using

best-in-class technology.

Responsibilities

● Design and develop new features using Full-stack development

(Java/Spring/React/Angular/Mysql) for a cloud(AWS/others) and mobile product

application in SOA/microservices architecture.

● Design awesome features and continuously improve them by exploring alternatives /

technologies to make design improvements.

● Performance testing with Gatling (Scala).

● Work with CI/CD pipeline and tools (Docker, Ansible) to improve build and

deployment process.

● Working with QA to ensure the quality and timing of new release deployments.

Skills/Experience

Good coding/problem solving skills and interest in learning new things will be the key.

Time /Training will be provided to learn new technologies/tools.

● 4 or more years of professional experience in building web/mobile applications using

Java or similar technologies (C#, Ruby, Python, Elixir, NodeJS).

● Experience in Spring Framework or similar frameworks.

● Experience in any DB (SQL/noSQL)

● Any experience in front-end development using React/Vue/Angular/similar

frameworks.

● Any experience with Java/similar testing frameworks (JUnit/Mocks etc).

Key Responsibilities:

·      Contribute to all stages of software development lifecycle

·      Analyse user requirements to define business objectives

·      Envisioning system features and functionality

·      Define application objectives and functionality

·      Ensure application designs conform with business goals

·      Identify and resolve any technical issues arising

·      Conducting software analysis, programming, testing, and debugging

·      Manage Java and Java EE application development

·      Develop documentation to help users

·      Transforming requirements into stipulations

·      Prepare and produce releases of software components

·      Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review

·      Create & maintain monthly/weekly reports to track progress and performance.

Key Skills & Competencies:

·      Proficiency in Java

·      Core Java, J2EE, Spring MVC, Spring REST APIs, Spring Security, JSP, Web application, Redis, Oauth2, Angular, JQuery, Html, JavaScript

·      Knowledge on MySQL

·      Good experience in SQL server enabled understanding and write complex stored procedures

·      Web frameworks like Spring Boot

What You’ll Be Doing

• 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
• 💡 Join brainstorming sessions and help shape our products.
• 🚀 Things move fast here, and you’ll learn as you go.
• 🤝 Work closely with everyone—designers, developers, and even marketing folks.
• 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.

What We’re Looking For

We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!

For Backend Engineers

• 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
• 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
• ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.

For Frontend Engineers

• 💻 Expertise in React Native.
• 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
• 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.

General Expectations for All Engineers

• 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
• 🔍 You enjoy figuring things out and experimenting until you get it right.
• 🤝 Great communication skills and a collaborative mindset.
• 🚀 You’re ready to dive in and make things happen.

Interview Process

If we like your application, Be ready to:

1. Solve a data structures and algorithms (DSA) problem in your preferred programming language.
2. Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
3. Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend

Why Join Us?

• 💡 Your work will matter here—no busy work, just real projects with real outcomes.
• 🚀 Help shape the future of our company.
• 🎉 We’re all about solving cool problems and having fun while we do it.

• Candidate Should have 5+ Years Of Experience in Core Java
• You will need strong development skills to work on and improve our Scala-based services, and be able to work together with senior teammates to create appropriate architectural design and ensure all aspects are appropriate to meet the business need.
• Excellent Functional Design and Functional Programming skills (more than 2 years of business experience in Scala and Java projects, respectively)
• Core skills in key supporting technologies and/or frameworks such as Play (AKKA) / Lagom
• Proven experience working in teams in the successful delivery of complex, performant and high quality products
• Excellent spoken and written communication skills
• Experience of SaaS (Software as a Service) environments
• Exposure to RESTful web APIs and a service oriented architecture
• Experience in Linux environments, Shell scripting etc
• Working with XML and JSON including parsing, asserting / matching and extracting
• Experience with Continuous Integration environments and build tools, including Terraform, Jenkins, Maven, Gradle and Ant
• Experience with messaging systems such as Apache Kafka, Amazon Kinesis, Amazon SQS and Rabbit MQ
• Experience working on Live platform SDKs such as Twilio, AWS Elemental

Skills:

• 8+ years of software development experience using traditional software development life cycle methodologies (covering requirements, design, development, testing and Implementation of n-tier architecture)
• Extensive experience with object-oriented software development methodologies and practices. Strong in following technologies
• OOAD/OOPS/UML, Design Patterns, MVC, Spring, Hibernate, Java, J2EE
• UI technologies AngularJS, HTML5, CSS3, java script library, Ajax and other UI frameworks
• Exposure to component model design, SOA, open sources framework/tools
• Web Services, JMS, XML, SQL& Oracle
• Must have exposed with Test Driven Development/Re-factoring ideas/ Domain driven design patterns/continuous integration/Build Automation / Data-Mapper framework/Mocks.

Good to Have: Microservices

Competencies:

• Experience in developing platforms or frameworks, components
• Excellent knowledge of the open source software/ tools/ technologies

Who We Are:

Polosoft helps brands solve complex challenges through our integrated development and services offering. Headquartered in Bhubaneswar with offices in Delhi & USA, our teams are connected by a set of core values that inform everything we do, from how we hire to how we work together: values like Everyone Matters, No Silos, and Masters of Our Craft.

At Polosoft, we are creating a new model for a new age client, and we are obsessed with measured impact. We combine digital, analytical, and creative capabilities with industry knowledge and experience. That means clients can bring us their biggest challenges, knowing we have what it takes to bring a new business vision to life.

Polosoft is growing fast; hence an entrepreneurial mind-set and the ability to multitask would be highly desired.

We are Looking For:

As a Full Stack Developer, you are constantly leveraging your technical skills and creativity. You have mastered front-end and back-end development, creating reliable, lightweight, malleable, and high-performing web & enterprise applications. You are fluent in core PHP and at least 1 MVC framework from Laravel and Codeignitor, comfortable using CLI in Unix/ Linux server environments. You are technologically agnostic, genuinely enjoy experimenting with new frameworks, and closely follow changes across the tech landscape.

This role is perfectly suited for people that love to learn because it requires you to continuously update your skillset and technical abilities. Staying up to date on new development tools, programming techniques, and industry trends is also part of the job. If you’re someone who loves logic and problem solving, then We are looking for You.

What You Will Do

• No day is the same - you will create technical designs that support varying client requirements.
• You will design and develop full-stack web applications using the latest web technologies, primarily Angular js and React js, Express js
• Write code that passes unit tests and withstands an agile and test-driven development environment.
• Leverage your skills in industry standard tools to deliver weekly code releases.
• You’ll work in a ‘no silos’ environment, frequently collaborating with global teams and roles across the organization.

Who You Are

Requirements

• You can build products from scratch.
• You have expertise in any one of the back-end frameworks (PHP 5.x/7.x with XAMP/LAMP Environment, Laravel, Codeigniter PHP web framework, Node js, Express js, etc.)
• You are fluent in these languages - PHP, Javascript, NodeJS
• You have Strong knowledge of Ui and UX

• You have dabbled in these front-end tools - HTML 5, Bootstrap 3.0/4.0, CSS 3.0, React js,Node.js Angular JS, JQuery
• You understand when to use NoSQL ( Mongo DB) vs. relational database (MySQL)
• You are comfortable to use any of the web services (REST/ SOAP/ XML)
• You are comfortable to use ecommerce tool like magento 1 and 2, Woocommerce,prestashop and other CMS tool like wordpress (plugin building),drupal  and Joomla
• You preferably have experience in working with GIT, SVN or similar SCM tools
• You must have done one of this payment gateway integration - Paypal/ Stripe/ Razor pay
• You are comfortable working up and down the stack.
• You can convert ideas into designs and build them out

Seniority Level

Mid-level 2-4 Years of Experience

CTC : 3 – 6 LPA

Skills and Experience :

• 2-7 years of experience as a Java/J2EE developer.
• 1-3 years of experience with Angular / React is desirable.
• 2-5 years of experience in using Spring and Spring Boot frameworks.
• Thorough knowledge of server-side development.
• Proven experience as a Full Stack Developer or similar role.
• Good understanding of web services (WSDL SOAP, RESTful).
• Hands-on experience in using Application Servers like WebSphere.
• Expertise in relational databases (Oracle, SQL Server).
• AI/ML domain knowledge is desirable.
• Familiarity with common stacks.
• Knowledge of multiple frontend languages and libraries, like HTML/ CSS, JavaScript, XML, jQuery.
• Experience in implementation of Microservices
• Experience with AWS (S3, SQS, SNS, ECS, EC2, ALB, API Gateway, Lambda, etc.) is highly desirable
• Good understanding of Docker & Kubernetes is highly desired.
• Familiarity with databases (MySQL, MongoDB, PostgresSQL), web servers (Apache), and UI/UX designs.
• Excellent communication and teamwork skills.

About LevaData

LevaData, the Cognitive Sourcing Platform, offers global enterprises the ability to improve gross margins by reducing supply chain costs, with a focus on delivering measurable and accountable supply chain solutions and strategies that transform companies and markets. Customers include leaders in the top global supply chain organizations, as well as medium-sized OEMs seeking to achieve best-in-class direct materials sourcing practices. LevaData is privately held and headquartered in Sunnyvale, Calif. For more information, visit https://www.levadata.com/">www.levadata.com.

Levadata Clientele: IBM, Fitbit, Lenovo, Zebra, Poly, Commscope

LevaData Fundings:

June, 2018: Series B, $12 million.

Aug, 2017: Series A, $5 million.

Greetings from SMARK Info Solutions!!

We are writing to you from SMARK Info Solutions we are a young company with a technically capable, entrepreneurial, and sophisticated team.

We are reaching out to you for Full-stack Senior Software Engineer (SSE) opportunity with one of our client here in Hyderabad.

The Role

The Full-stack Senior Software Engineer (SSE) in this role will support development and design teams to build scalable web applications and products.

Responsibilities include (but are not limited to):

Support delivery of software components including design and writing/reviewing code

Work within and across Agile to design, develop, test, and implement technical solutions across a full-stack of development tools and technologies

The Candidate

The ideal Full-stack Senior Software Engineer has strong coding skills, has a solid design aesthetic and is determined to create great user experiences.

Key Requirements and Qualifications:

• 3-9 years of professional experience with designing, implementing, deploying, and maintaining front end web applications and related backend services
• Must have worked on Java Spring & Hibernate Framework with strong experience in JavaScript/ Angular-JS, Core Java, J2EE and other related technologies
• Knowledge of Web Service implementation (Restful and SOAP)
• Hands on experience in OOAD and Design Patterns
• Knowledge of Data Structures and Algorithm
• Front-end experience with Angular, JavaScript, HTML, CSS, JQuery, Type Script, ES6
• Experience in JS frameworks (Angular/AngularJS,) and willingness/ability to learn new frameworks if required
• Knowledge of professional software engineering practices and best practices
• Strong communication, organization and project management skills.