Senior Java Developer

Java Lead We are solving complex technical problems in the financial 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. 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. Experience: 8–13 years in Java development. Domain Expertise: Background in product-based companies, investment banking experience preferred. Leadership: Proven ability to lead teams of 3–4 members. Technical Depth: Hands-on with complex systems and distributed architectures. Soft Skills: Strong analytical thinking, problem-solving, and excellent communication. Process Knowledge: Expertise in end-to-end SDLC and Agile methodologies. Tech Stack ● Languages & Frameworks: Core Java, J2EE, Spring Boot, Spring Framework. ● Architecture: RESTful APIs, Microservices. ● Persistence: Hibernate/JPA. ● Databases: Postgres, MySQL (or similar). ● Tools: Maven/Gradle, CI/CD pipelines. ● Cloud: AWS/Azure (nice to have). 

Job Description: Node.js Developer (3+ Years Experience)

Division/Department: Engineering

Industry: Insurance / Fintech

Employment Type: Full-Time, Permanent

Job Summary

We are looking for a skilled Node.js Developer who is experienced with JavaScript/TypeScript, databases, and modern AI development tools. You will build and maintain backend applications, design scalable systems, and use AI tools to enhance development productivity. The role involves backend development, database management, API development, and cloud deployment.

What You’ll Be Doing

Backend Development

• Build and maintain Node.js applications, services, and APIs.
• Write clean, readable JavaScript/TypeScript code.
• Create and manage REST APIs; work with GraphQL when required.
• Develop microservices and containerized applications (Docker).
• Participate in code reviews and help maintain coding standards.

Database Work

• Design database schemas for PostgreSQL, MongoDB, and Redis.
• Write optimized SQL and NoSQL queries.
• Implement indexing and manage database performance tuning.
• Handle database scaling and caching strategies.

AI Tools & Productivity

• Use AI coding assistants (GitHub Copilot, Cursor AI, Tabnine).
• Integrate AI APIs (OpenAI, Claude) into backend applications.
• Build features powered by AI/ML capabilities.
• Use AI tools to debug and enhance code quality.

Deployment & Operations

• Deploy applications on AWS, Azure, or GCP.
• Set up CI/CD pipelines (GitHub Actions, Jenkins).
• Work with Docker and Kubernetes.
• Monitor backend services and perform troubleshooting.

Job Requirements

Must-Have (2–7 Years Experience)

• Strong hands-on experience with Node.js and Express.js.
• Excellent understanding of JavaScript/TypeScript, ES6+, async/await.
• Experience with at least one major database: PostgreSQL, MongoDB, Redis.
• Knowledge of API development (REST, GraphQL).
• Hands-on experience with Git and version control.
• Experience with testing tools like Jest, Mocha, or similar.

AI Tools Experience

• Familiarity with AI coding assistants.
• Working with AI APIs (OpenAI, Claude, etc.).
• Experience using AI tools for debugging and code optimization.
• Basic understanding of prompt engineering.

Bonus Skills (Good to Have)

• Cloud platforms: AWS, Azure, Google Cloud.
• Docker, Kubernetes.
• CI/CD pipelines.
• Frontend exposure (React/Vue/Angular).
• Message queues: RabbitMQ, Kafka.
• Caching: Redis, Memcached.
• API security: JWT, OAuth2.

Mandatory Skills

Technical

• Experience building and deploying Node.js applications.
• Strong command over databases and efficient query writing.
• Comfort with AI-based coding tools.
• Ability to debug and solve backend issues independently.

Soft Skills

• Strong communication and teamwork skills.
• Self-driven and eager to learn new technologies.
• Ability to mentor junior developers (for senior positions).

What you will do?

Project Management

• Work with the product management team to create an engineering roadmap that aligns with the product roadmap. 
• Translate engineering roadmap into executable internal projects, and own the end-to-end execution of these projects.
• Plan, execute and deliver projects as per schedule, content, and quality metrics.
• Manage the day-to-day activities of the engineering team using Agile practices.
• Keep stakeholders continually updated on the progress of projects and operations.
• Track and report engineering health metrics (such as bugs by severity, production incidents etc.)

People Management

•  Hire and mentor a team of engineers
•  Manage learning and development, and performance of your team.
•  Own, Conceptualize and Build a tech-focused team

Technical Work

•  Core stakeholder to all technical design and architecture of team.
•  Review code, test plans, and deployment plans.
•  Focus and Strengthen all aspects of reliability

What we look for?

Must Haves

• Experience in telecom messaging software systems.
• Experience in distributed and scalable systems.
• Communication skills - excellent written and oral communication to present complex ideas/concepts in a clear and concise manner; communicating with key stakeholders with work/project progress.

Good to Have

• Experience in telecom messaging software systems.
• Experience in distributed and scalable systems.
• Communication skills - excellent written and oral communication to present complex ideas/concepts in a clear and concise manner; communicating with key stakeholders with work/project progress

• Bachelor's or Master’s degree in Computer Science or equivalent area
• 10 to 20 years of experience in software development
• Hands-on experience designing and building B2B or B2C products
• 3+ years architecting SaaS/Web based customer facing products, leading engineering teams as software/technical architect
• Experiences of engineering practices such as code refactoring, microservices, design and enterprise integration patterns, test and design-driven development, continuous integration, building highly scalable applications, application and infrastructure security
• Strong cloud infrastructure experience with AWS and/or Azure
• Experience building event driven systems and working with message queues/topics
• Broad working experience across multiple programming languages and frameworks with in-depth experience in one or more of the following: .Net, Java, Scala or Go-lang
• Hands-on experience with relational databases like SQL Server, PostgreSQL and document stores like Elasticsearch or MongoDB
• Hands-on experience with Big Data processing technologies like Hadoop/Spark is a plus
• Hands-on experience with container technologies like Docker, Kubernetes
• Knowledge of Agile software development process

Full Time @ Anywhere in India

3+ years

• Architecting and implementing the solutions we build
• Working with the team, client and project manager to efficiently deliver projects
• Translating business needs to technical solutions and communicating with the client
• Ensuring that good programming practices are followed
• Supporting other engineers’ growth with your expertise and mentorship
• Taking part in internal initiatives such as performance reviews, technical recruitment, estimation of pre-sale projects

• 2+ years of experience in Spring boot Framework
• Experience with REST- JSON, SOAP/XML is mandatory
• Proven working experience in Java development
• Experienced in Server Side Java, J2EE, Servlets, Spring/Spring boot, Hibernate JAXB, JAX-WS, MySQL/PostgreSQL, Junit
• Knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate).
• Hands-on experience in designing and developing applications using Java EE
• Platforms with Open Source Frameworks - Spring/Spring boot, XML, Integration with SOAP and RESTful Web Services, WS security.
• Experience with test-driven development
• Experience with GIT and Maven.
• Experience with Spring Security.

Technical specifications/Skill Set:

• Minimum of 5+ years of significant experience in application development.
• Proficient with software development lifecycle (SDLC) methodologies like Agile, Test- driven development
• Knowledge of system architecture, object-oriented design, and design patterns.
• Required technical skills: Strong Core Java, J2EE, Spring boot, Akka, API development & distributed application development experience.
• Desirable technical skills: Micro-services pattern, Kafka, Knative Eventing, Camel-K, Container Technologies like Docker, Kubernetes, NoSql preferably Cassandra.
• Experience working with high volume data and computationally intensive system.
• Domain knowledge in Financial Industry and Capital Markets is a plus.
• Excellent communication skills are essential, with strong verbal and writing proficiencies.

What do Microsoft, The Gap, Royal Bank of Scotland, Lockheed Martin, and top Open Source projects like JQuery have in common? They all use BrowserStack, as do over 25,000 other customers!

BrowserStack is the industry-leading, cloud web and mobile testing platform that enables developers to test their websites and apps on different operating systems and mobile devices. Since launching in 2011, our mission has been bold yet simple: To be the testing infrastructure for the internet. 6 years and billions of tests later, we are ready for our next phase of hyper growth. Bootstrapped for the first 6 years, we continue to be profitable since inception with a near exponential https://workable.com/nr?l=https%3A%2F%2Fwww.browserstack.com%2Fgrowth">growth in customers around the globe. Recently, we closed $50M in Series A funding from Accel

Are you are the one who wants to work on a tech-heavy product, and the challenging technical problems that it entails? Problems vary, and can be as diverse as scaling the product smoothly as the company grows, to setting up a device farm, or solving streaming issues through a browser, without the use of plugins. Will you be excited for the challenge to transform and think critically on many computer science disciplines including product design, usability, building APIs and user-centric online applications, business logic, scaling performance, and 24x7 reliability?

JOB RESPONSIBILITIES

• Writing high quality code, participating in code reviews, designing/architecting systems of varying complexity and scope, and creating high quality documentation supporting the design/coding tasks
• Lead out team meetings, stand-ups, and architecture/design discussions
• Identify areas of improvement in our frameworks, tools, processes and strive to make them better. Evaluate our success metrics and evolve our reporting systems
• Works on the web application layer, backend, systems, streaming and other associated technology to build our product and components
• Find solutions and solve issues around a variety of operating systems or programming languages
• Researching new technologies and adapt them to BrowserStack requirements
• Own and commit to all your work, and be accountable for your results
• Using and understanding code from Open Source
• Teaching others how to use new software
• Willing to learn new programming languages and databases
• Able to write efficient SQL queries and design schemas for relational databases
• Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people (no lone wolves)
• Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration
• Develop multi-tier scalable, high-volume performing, and reliable user-centric applications that operate 24x7
• Scale distributed applications, make architectural trade-offs applying synchronous and asynchronous design patterns, write code, and deliver with speediness and quality

• Good experience in at least one scripting language: Ruby, Nodejs, Python, AppleScript, Unix shell or similar
• Familiarity with one compiled language: C, Java, Go or similar
• Good knowledge of operating systems and networking concepts
• Reasonable knowledge of Windows and/or Linux operating systems
• Ability to work on Windows and Linux platform below the application layer, including file systems, kernels, custom installations, shell scripting, internal APIs, etc
• Aggressive problem diagnosis and creative problem solving skills
• Startup mentality, high willingness to learn, and hardworking
• Experience of 3-6 years