Java Developer

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.

Job Title: Associate Backend Engineer

Job Summary:

We are looking for an enthusiastic and motivated Associate Backend Engineer with 1 to 2 years of experience to join our growing engineering team. Whether you're a recent graduate or have some industry experience, this role offers a strong foundation to grow your skills in real-world backend development. You’ll work closely with experienced engineers and contribute to the design, development, and maintenance of scalable backend systems that power our products.

This position is ideal for individuals who are eager to learn, write production-grade code, and grow into a high-performing backend engineer.

Website: https://www.thealteroffice.com/about

Key Responsibilities:

• Assist in building and maintaining backend services and APIs for web and mobile applications.
• Work with both relational (MySQL, PostgreSQL) and NoSQL (MongoDB, Redis) databases for data modeling and storage.
• Write clean, maintainable, and well-documented code under guidance.
• Contribute to authentication, authorization, and other core backend features.
• Collaborate with cross-functional teams including product, frontend, and QA to deliver complete features.
• Participate in code reviews and incorporate feedback to improve code quality.
• Debug issues, write unit/integration tests, and help maintain service reliability and performance.
• Learn to work with CI/CD pipelines, version control (Git), and deployment workflows.
• Use tools like Docker, basic cloud services (AWS/GCP/Azure), and optionally explore monitoring/logging tools.
• Explore new technologies such as GraphQL, WebSockets, or message queues (e.g., Kafka, RabbitMQ) when relevant.

Requirements:

• 1 to 2 years of backend development experience, including internships, academic projects, freelance, or open-source work.
• Familiarity with at least one backend programming language (e.g., Python, Java, Go, JavaScript, etc.).
• Basic understanding of RESTful APIs, HTTP, databases, and server-side logic.
• Exposure to SQL and NoSQL databases and understanding of CRUD operations.
• Familiarity with Git and fundamental development workflows.
• Willingness to learn and apply best practices in scalability, security, and asynchronous programming.
• Strong problem-solving mindset and eagerness to take feedback and grow.
• Good communication and collaboration skills in a team environment.

About the role:

We are seeking a highly motivated Senior Software Engineer with expertise in building scalable, extensible applications, identifying and addressing performance bottlenecks, collaborate with other team members to innovate current/new products; Identify, communicate and implement best practices for application engineering. Our engineering process is fully agile and has a really fast release cycles - which keeps our environment very energetic and fun.

What you’ll do:

• Architect, Design and build scalable applications.
• Work with Product Management teams to get maximum value out of existing data.
• Contribute to continual improvement by suggesting improvements software system.
• Ensure high scalability and performance
• You will advocate for good, clean, well-documented and performing code; define and follow standards and best practices for front-end development.
• Ability to deliver great results in an agile development
• Strong verbal and written communication skills

We’d love for you to have:

• Experience: 3-5 years of experience as a backend developer is required
• Education: B.Tech. in Computer Science from tier - 1 engineering colleges in India

• A self-starter who is passionate about problem solving across complex technology stack.
• Highly skilled back-end engineer using Object-Oriented programming preferably Java, exposure to open source libraries and frameworks.
• Strong knowledge and experience in REST based programming using Restlet framework.
• Ability and experience in evaluation and integration of third party systems and libraries.
• Experience in system architecture, data structures, algorithm design and their optimization.
• Passion for performance benchmarking and debugging.
• Strong knowledge of web standards (i.e. REST/SOAP) concepts
• Knowledge of version control (GIT) and databases (MySQL)
• Experience with the full software development lifecycle, design, develop, debug, document, and deliver (especially in a multiple location organization).
• Experience in Test-driven development.

We are looking for a focussed, energetic and motivated Senior Java Developer. You must have sufficient experience in Java Development, Spring, Spring Boot, AWS and SQS, S3. You will be challenged with complex and robust product development.

As a Senior Java Developer, you will be the most senior developer within the company working alongside other Java Developers, the Engineering Manager, and the CTO.

Senior Java Developer requirements

Solid development experience using Java, Springboot, SQS, S3 and Microservices

Experience working in Swing Java framework

Revises, updates, refactors, and debugs code

Write clear, concise and efficient code and ensure it is fully tested

Service and develop features using Java with AWS, JUnit, SQL and Spring framework

You have a good knowledge of Cloud technologies (ideally AWS)

Participate in peer coding reviews and work in a collaborative, agile environment

Demonstrate technical knowledge and expertise with a clear understanding on the products' technical composition

Senior Java Developer responsibilities

7-9 yrs minimum work experience

Excellent analytical, troubleshooting, and communication skills

Excellent attention to detail and time-management skills

Serves as an expert on developed applications

Ability to adapt and learn new product/technology is key

Collaborates with internal teams to produce software design and architecture

Knowledge of Agile frameworks (i.e. Scrum) and has worked with Jira or Spira

Attend daily stand-up meetings alongside the Scrum Master

A self-starter, hardworking and committed individual

Work UK hours - ideally 9.00am - 6pm with the expectation to work out of ours when needed

Introduction:

Tyroo’s Vidtech.ai is one of the largest independent marketing automation cloud built for the video first world. We build softwares and platforms that allow our partners to derive maximum yields on their marketing spends on various video first social platforms. We work on problems that involve building high availability, low latency solutions which require computing optimal decisions using various self-created modules as well as pre-available modules popular in the ML and Big Data world.

We are looking for a back-end developer who has at least 1 years professional experience in building systems on either Python or Node.js and is able to become an anchor/pillar for the team. The role will require you to architect and develop systems/features needed for our marketing automation products. Strong leadership and mentoring skills are also necessary so that the individual can train, educate and manage junior resources.

Key Requirements:

• Must be able to tackle complex business problems by breaking it down into set of simpler problems and architect solutions for the same
• Must exhibit thought leadership and should be committed towards mentoring and team building
• Must have excellent communication skills as the individual needs to collaborate with Business and Product team
• Must be proactive towards changing software development landscape and keep upskilling
• Must be able to contribute in setting up best practices and effective design patterns in complete development lifecycle.

Technical Requirements:

• Must have 1+ years’ experience in developing scalable systems on Python/Node.js with strong grasp on microservices and serverless architectural patterns
• Must have prior experience with databases like MySQL, Elasticsearch, MongoDB, Redis
• Must be exposed to cloud platforms like AWS or GCP and containerization using Dockers
• Must have worked with RESTful APIs and WebSockets
• Must have deep understanding of HTTP, web browsers and token-based authentication/authorization (OAuth, JWT)
• Must be experienced on Version Control Tools (Git) and Package Managers (npm, yarn, pip)
• Must adhere to coding standards and have the habit of doing unit testing along with regular and rigorous code reviews
• Should know about microservices orchestration using Kubernetes, web servers like Nginx/Apache and queuing systems like Kafka/Kinesis

• Excellent Java programming skills.
• Experience in Web application Technologies like JAVA/JSP, HTML, Javascript, and CSS.
• Development experience using Java Spring Boot, Maven
• Knowledge and Experience in using REST API
• Experience in Database Query Languages.
• Experience in designing new application framework or migrating to new framework architecture, redesign, working on POC
• Should be open for understanding debugging the architecture of legacy systems and suggest changes wherever applicable.
• Experience in frameworks like Spring, Hibernate
• Experience in Multi-tier development/deployment of Web Application
• Experience in Producing and Consuming RESTful Web Services
• Strong in developing complex SQL Scripts to generate reports
• Familiarity in Maven, Gitx
• Familiarity in Unit Testing (JUnit)
• Familiarity with Continuous Integration tools (Jenkins etc)