Java Tech Lead

About Us:

Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits every day. If you thrive in high-stakes environments and have a deep passion for performance driven backend systems, we want you.

• We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and a deep interest in scalable, low-latency systems.

• You should have 3–4 years of experience in Python-based development and be eager to solve complex performance and scalability challenges in trading and fintech applications.

• You measure success by your own growth, not external validation.

• You thrive on challenges, not on perks or financial rewards.

• Taking calculated risks excites you—you’re here to build, break, and learn.

• You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading

environment.

• You understand the stakes—milliseconds can make or break trades, and precision is everything.

• Develop and maintain scalable backend systems using Python.

• Design and implement REST APIs and socket-based communication.

• Optimize code for speed, performance, and reliability.

• Collaborate with frontend teams to integrate server-side logic.

• Work with RabbitMQ, Kafka, Redis, and Elasticsearch for robust backend design.

• Build fault-tolerant, multi-producer/consumer systems.

What We Expect:

• 3–4 years of experience in Python and backend development.

• Strong understanding of REST APIs, sockets, and network protocols (TCP/UDP/HTTP).

• Experience with RabbitMQ/Kafka, SQL & NoSQL databases, Redis, and Elasticsearch.

• Bachelor’s degree in Computer Science or related field.

WHO WE ARE

We are a team of digital practitioners with roots stretching back to the earliest days of online commerce, who dedicate themselves to serving our client companies.

We’ve seen the advancements first-hand over the last 25 years and believe our experiences allow us to innovate. Utilizing cutting-edge technology and providing bespoke, innovative services, we believe we can help you stay ahead of the curve.

We take a holistic view of digital strategy. Our approach to transformation is based on conscious Intent to delight customers through continuous Insight and creative Innovation with an enduring culture of problem-solving.

We bring every element together to create innovative, high-performing commerce experiences for enterprise B2C, B2B, D2C and Marketplace brands across industries. From mapping out business and functional requirements, to developing the infrastructure to optimize traditionally fragmented processes, we help you create integrated, future-proofed commerce solutions.

WHAT YOU’LL BE DOING

As part of our team, you'll play a key role in building and evolving our Integration Platform as a Service (iPaaS) solution. This platform empowers our clients to seamlessly connect systems, automate workflows, and scale integrations with modern cloud-native tools.

Here’s what your day-to-day will look like:

• Designing and Building Integrations
• Collaborate with clients to understand integration needs and build scalable, event-driven solutions using Apache Kafka, AWS Lambda, API Gateway, and EventBridge.
• 
  
• Cloud-Native Development
• Develop and deploy microservices and serverless functions using TypeScript (Node.js), hosted on Kubernetes (EKS) and fully integrated with core AWS services like S3, SQS, and SNS.
• 
  
• Managing Data Pipelines
• Build robust data flows and streaming pipelines using Kafka and NoSQL databases like MongoDB, ensuring high availability and fault tolerance.
• 
  
• Client Collaboration
• Work directly with customers to gather requirements, design integration patterns, and provide guidance on best practices for cloud-native architectures.
• 
  
• Driving Platform Evolution
• Contribute to the ongoing improvement of our iPaaS platform—enhancing observability, scaling capabilities, and CI/CD processes using modern DevOps practices.

WHAT WE NEED IN YOU

• Solid Experience in Apache Kafka for data streaming and event-driven systems
• Production experience with Kubernetes (EKS) and containerized deployments
• Deep knowledge of AWS, including S3, EC2, SQS, SNS, EventBridge, Lambda
• Proficient in TypeScript (Node.js environment)
• Experience with MongoDB or other NoSQL databases
• Familiarity with microservices architecture, async messaging, and DevOps practices
• AWS Certification (e.g., Solutions Architect or Developer Associate) is a plus

Qualification

• Graduate - BE / Btech or equivalent.
• 5 to 8 years of experience
• Self motivated and quick learner with excellent problem solving skills. 
• A good team player with nice communication skills.
• Energy and real passion to work in a startup environment.

Visit our website - https://www.trikatechnologies.com

• Develop, enhance, and maintain Java-based applications using Spring Boot and related frameworks.
• Design, implement, and optimize Microservices with RESTful APIs.
• Build and manage Spring Batch jobs, including scheduling, chunk processing, partitioning, and error handling.
• Apply object-oriented design (OOD) and GoF design patterns (Factory, Singleton, Strategy, Observer, etc.).
• Write clean, maintainable, and scalable code following best coding standards.
• Integrate applications with databases (SQL/NoSQL) and messaging systems (Kafka/RabbitMQ).
• Participate in code reviews, technical discussions, and architectural decisions.
• Troubleshoot production issues and ensure application performance, scalability, and reliability.
• Work in an Agile/Scrum environment and collaborate with cross-functional teams.

Technical Skills Required

• ** Core Java 8+**, OOP, Collections, Multithreading
• ** Spring Boot**, Spring MVC, Spring Data JPA
• ** Spring Batch** (Job/Step configuration, Tasklets, Readers/Writers, partitioning)
• ** Microservices** (REST, API Gateway, service discovery, resilience patterns)
• ** Design Patterns** (Factory, Singleton, Adapter, Strategy, Builder, Observer, etc.)
• ** Databases:** MySQL/PostgreSQL/Oracle, MongoDB (optional)
• ** Messaging:** Kafka / RabbitMQ (preferred)
• ** Build tools:** Maven/Gradle
• ** CI/CD:** Jenkins, GitLab CI, or similar
• ** Cloud:** AWS / Azure / GCP (optional but preferred)
• ** Testing:** JUnit, Mockito

Wissen Technology is hiring for Java Tech lead

Required:

• 8-10 years of industrial experience
• Java and related frameworks.
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
• Exposure on Fintech domain is mandatory
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high volume server side development
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.

Company Profile:

Company Name : Wissen Technology

Group of companies in India : Wissen Technology & Wissen Infotech

Work Location - Bangalore

Website : www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: https://www.linkedin.com/company/wissen-technology

The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. You will be a lead developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and aleadership skills. 

Responsibilities

• Writing clean, high-quality, high-performance, maintainable code
• Develop and support software including applications, database integration, interfaces, and new functionality enhancements
• Coordinate cross-functionally to insure project meets business objectives and compliance standards
• Support test and deployment of new products and features
• Participate in code reviews

Qualifications

• 5+ years of relevant work experience
• Mandatory experience in building scalable microservices on nodejs platforms
• Expertise in Object Oriented Design, Database Design, Service architecture
• Experience with Agile or Scrum software development methodologies
• Ability to multi-task, organize, and prioritize work

About the company, Kuants is a fintech startup offering products in the Wealth tech space. We are the market leaders in Algo trading software and 

We are looking for a Back-End Web Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the application. A basic understanding of front-end technologies is therefore necessary as well.

Responsibilities

• Integration of user-facing elements developed by front-end developers with server-side logic
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability
• Implementation of security and data protection
• Design and implementation of data storage solutions

Skills And Qualifications

• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3
• Good understanding of server-side CSS preprocessors, such as LESS and SASS
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Management of hosting environment, including database administration and scaling an application to support load changes
• Data migration, transformation, and scripting
• Setup and administration of backups
• Outputting data in different formats
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient knowledge of a Django, REDIS, MySQL
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of OWASP security principles
• Understanding of “session management” in a distributed server environment

Job Requirements-

Mandatory:

1. 2 - 3 years of J2EE experience

2. Clear understanding and application knowledge of Object-Oriented concepts

3. Experienced in Core Java, Collection Framework, exception handling, logging frameworks

4. Knowledge of Struts/Spring/Springboot framework or any ORM tools like Hibernate, JPA mandatory

5. Knowledge of SQL

Desirable to have:

1. Code review tools like pmd, sonar, Checkstyle

2. Knowledge of writing unit testing using Junit, Jmock, DBUnit etc.,

3. Knowledge to build scripts using ant, maven

4. Exposure to Agile Model

5. Exposure to BFSI domain

Team Handling/Generic skills

1. Self-driven, ready to learn and adapt depending on customer/organization needs

2. Excellent communication skills

Share resumes at ruchika@ netconnectglobal.com