Principal Engineer

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore 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. - 4 to 10 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. 

We’re looking for full-stack software engineers who are passionate about both technical excellence and team development. This position is based in our Hyderabad office, where you can contribute towards developing secure and scalable software products.

What You’ll Do:

● As a Full Stack Principal Software Engineer you will build scalable applications, lead technical strategy, and mentor teams while working with modern front-end and back-end technologies.

● Architect & Develop: Design and implement scalable, high-performance software solutions.

● Full Stack Development: Build and maintain front-end applications using modern frameworks (React, Angular,

Vue.js) and back-end services using Java, Spring Boot, and cloud-native technologies.

● Technical Leadership: Provide technical guidance, conduct code reviews, and mentor engineers to improve

software quality and performance.

● Scalability & Security: Ensure software solutions adhere to best practices for security, scalability, and performance.

● Cloud & DevOps: Deploy and manage applications on cloud platforms (AWS, Azure, GCP) using Kubernetes,

Docker, and CI/CD pipelines.

● Collaboration: Work cross-functionally with product managers, UX designers, and other engineers to deliver

customer centric solutions.

What You’ll Need

● 10+ years of experience in full-stack development with expertise in Java, Spring Boot, and modern front-end

frameworks.

● Strong experience with microservices architecture and cloud-based development.

● Deep knowledge of front-end technologies such as React.js, Angular, TypeScript, JavaScript, HTML, CSS.

● Experience with database technologies like PostgreSQL, MySQL, MongoDB.

● Hands-on experience with Docker, Kubernetes, CI/CD tools (Jenkins, GitHub Actions, ArgoCD, etc.).

● Strong understanding of API design, GraphQL/REST, and authentication protocols (OAuth, JWT, SAML).

● Experience leading development teams, mentoring engineers, and driving technical decisions.

● Excellent problem-solving skills and ability to work in an agile, fast-paced environment

Good to have:

● Knowledge of DevSecOps practices and software security best practices.

● Familiarity with serverless computing (AWS Lambda, Azure Functions).

● Contributions to open-source projects or active participation in the software development community

Why Join Us?

● Help secure the software supply chain for millions of developers worldwide.

● Build meaningful software in a collaborative, fast-moving environment with strong technical peers.

● Stay hands-on while leading—technical leadership is part of the job, not separate from it.

● Join a global engineering organization with deep local roots and a strong team culture.

● Competitive salary, great benefits, and opportunities for growth and innovation.

If you're excited about building impactful software and helping others do the same,

Responsibilities:

● Design, develop, test, and maintain software applications using Java technologies.

● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.

● Develop and optimize database operations with MySQL.

● Analyze and solve complex problems by applying knowledge of data structures and algorithms

Requirement -

Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).

● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.

● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.

● Version Control Systems: Experience with tools like Gi

• 4+ years exp with solid backend/engineering experience.
• Knowledge of data structures and an eye for architecture.
• Solid CS fundamentals, fluent in multi-threaded and asynchronous programming, a strong inclination for architecting at scale.
• Excellent technical design, problem-solving, debugging, and communication skills.
• Rapid prototyping worked on distributed systems at scale.
• Basic knowledge of SQL as well as NoSQL databases.
• Proficient in Golang, it's design, and concurrency patterns.

We are looking for an experienced Backend Engineer who can help make our desktop app even more spectacular for the highest performing professionals globally. She / he should be versatile and should have a good base with Golang, NodeJs and Python

About Track

The calendar is a tool that can assist you to achieve your highest human potential. Being productive with your time and collaborating efficiently with others is key to it. And Track (https://thetrackapp.com) is the fastest calendar experience ever. We've redesigned the calendar from the ground up to be fast, simple, effortless and also fun.

The Team

We are a small, global and efficient team and speed is part of everything we build and do

We are backed by amazing investors from India and US who have cofounded startups which had massive exits and the investors are currently on boards of Unicorn startups.

The Founder has over 12 years of experience in technology, studied and worked in the US for 8 years, and has cofounded a startup before.

Expected Skills :- 

Primary expertise: Golang, NodeJs, Python 

• Our backend was written in Nodejs and some parts converted to Golang. We want to switch completely
• Knowing Golang well is important 
• You should know python / Django at a reasonable level
• Ability to work with GCP and AWS environments
  Worked with Amazon services like SNS, SQS and Google services like Firebase FCM
• Ability to execute rapidly

• Required 4+ years of experience in Java.
• Hands on professional experience using Core Java, Java Restful APIs, Gradle, Spring, Spring Boot and related frameworks.
• Hands on experience creating/consuming web services and data Data queries in SQL
• 2+ years’ experience of working with geographically dispersed teams, that fall across different time zones
• Experience with distributed architecture including web services and technologies
• Developing POCs
• Working knowledge of JIRA or other ALM tools to create a productive, high quality development environment

Looking Data Enginner for our OWn organization-

Notice Period- 15-30 days
CTC- upto 15 lpa

Preferred Technical Expertise 

1. Expertise in Python programming.
2. Proficient in Pandas/Numpy Libraries. 
3. Experience with Django framework and API Development.
4. Proficient in writing complex queries using SQL
5. Hands on experience with Apache Airflow.
6. Experience with source code versioning tools such as GIT, Bitbucket etc.

 Good to have Skills:

1. Create and maintain Optimal Data Pipeline Architecture
2. Experienced in handling large structured data.
3. Demonstrated ability in solutions covering data ingestion, data cleansing, ETL, Data mart creation and exposing data for consumers.
4. Experience with any cloud platform (GCP is a plus)
5. Experience with JQuery, HTML, Javascript, CSS is a plus.

Job Description:

• Expert level knowledge of JavaScript
• We use Airbnb style to code
• Should be strong in Problem solving skills, data structure and algorithms
• Strong Proficiency in Node.js with detailed experience in Express, loopback, swagger, PM2
• Should have well understanding on Asynchronous Programming
• Experience with Socket.io, engine.io (Preferred)
• Working knowledge of Promise, Callback hell and ways to avoid it
• Solid experience with RDBMS (PostgreSQL)
• Experience with Redis, MongoDB (Preferred)
• Understanding of the design Principles of a scalable system
• Exposure to GCP/ AWS is must
• Excellence in Programming, Debugging and Maintaining the code
• A strong ability to quickly learn new technologies and to keep yourself updated with the latest in tech
• A go-getter attitude with oceans of optimism, humility, and self-motivation
• Passion for code quality and attention to detail
• Experience with Code versioning tool like Git, SVN is preferred