
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.
What You Will Do:
• 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 2–5 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.
What We Expect:
• 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.
Must-Have Skills:
• 2–5 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.
Nice-to-Have Skills:
• Past experience in fintech, trading systems, or algorithmic trading.
• Experience with GoLang, C/C++, Erlang, or Elixir.
• Exposure to trading, fintech, or low-latency systems.
• Familiarity with microservices and CI/CD pipelines.

About Tradelab Software Private Limited
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Greetings!!
This is Nayana representing Wissen Technology (www.wissen.com)
Job Opportunity with Wissen Technology for Java Technical Lead at Bangalore
Location
Here is the Job Description for your review:
Location: Bangalore
Experience: 9+ years
Skill – Java Technical Lead
Full-time with Wissen Technology
Hybrid model
Position Overview:
We are seeking an experienced Java Lead to join our software development team. As a Java Architect, you will be responsible for designing and leading the development of complex Java-based applications, ensuring scalability, performance, and maintainability. You will collaborate with cross-functional teams, including developers, product managers, and stakeholders, to create robust software solutions that meet our business needs.
Key Responsibilities:
Technical Expertise: A Java lead should have a strong background in Java programming and be well-versed in various Java technologies and frameworks. They should be able to provide guidance, solve complex technical problems, and help team members with code reviews and best practices.
Team Management: Java leads are responsible for managing their development team. This includes tasks like task assignment, project planning, tracking progress, and ensuring that the team adheres to coding standards and follows best practices.
Architecture and Design: They often participate in the architectural and design phases of software development, making high-level decisions about the project's structure, technology stack, and design patterns.
Code Reviews: Regularly reviewing the code written by team members to ensure it meets quality standards, is maintainable, and follows the project's design and coding guidelines.
Mentoring and Training: Providing guidance and mentorship to junior developers, helping them grow their skills, and organizing training sessions to keep the team up-to-date with Java advancements.
Problem Solving: Being able to troubleshoot technical issues and challenges that may arise during the development process.
Communication: Good communication skills are essential for a Java lead. They need to coordinate with other team leads, project managers, and stakeholders to ensure smooth project execution and to report progress.
Project Management: While not always the primary project manager, Java leads often have a role in project planning and tracking to ensure that projects are delivered on time and within scope.
Required Skills:
• Experience in Core Java 5.0 and above, CXF, and Spring.
• Experience in spring boot, and microservices.
• Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
• 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, preferably Sybase database.
• Good knowledge of multi-threading and high-volume server-side development.
• Experience in sales and trading platforms in investment banking/capital markets.
• Basic working knowledge of Unix/Linux
• Excellent problem-solving and coding skills in Java
• Strong interpersonal, communication, and analytical skills.
• Should have the ability to express their design ideas and thoughts.
Desired Skills:
• Prior experience in the Banking & Finance domain is preferred
• Experience in AWS/Azure or any other cloud platform
About Wissen Technology:
Wissen Technology is a 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 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 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 1300+ 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.
Career Progression:
At Wissen Technology, your career growth is important for us. Therefore, we put in several efforts towards each employee’s career progression – to enable and empower them to grow within the company as well as to instil a sense of responsibility, loyalty, and trust.
There have been instances where a software engineer has grown from being an individual contributor to a technical lead and now on the path to becoming a director responsible for growing revenues and profitability. We deeply value Ownership: taking responsibility, making it happen, not letting the ball drop, and being accountable.
Website : www.wissen.com
Why Wissen? : https://www.youtube.com/watch?v=K87DADzVT7g
Wissen Thought leadership: https://www.wissen.com/articles/
Latest in Wissen in CIO Insider :
Employee Speak:
https://www.ambitionbox.com/overview/wissen-technology-overview
LinkedIn: https://www.linkedin.com/company/wissen-technology
About Wissen Interview Process:
More on Wissen:
https://www.wissen.com/blog/here-is-what-ownership-and-commitment-mean-to-wissenites/
Regards,
Nayana KM
Principal Consultant - Talent Acquisition
Wissen
W www.wissen.com
Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, data structure and SQL skills .
Required Skills:
- Experience - 5 to 10 years.
- Experience in Core Java 5.0 and above, CXF, Spring.
- Extensive experience in developing enterprise-scale n-tier applications for financial domain. 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, preferably Sybase database.
- Good knowledge of multi-threading and high-volume server-side development.
- Experience in sales and trading platforms in investment banking/capital markets.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills in Java.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Roles and Responsibilities
Code, develop, design and architect features related to the existing application. We expect you to own modules end to end and take pride in the work products you ship.
Lead from the front, when it comes to delivering high quality work products. Serve as a mentor to the team members
Create and define performance metrics. Ideate, innovate and hack through the existing systems to improve performance
Perform code reviews, set coding practices and guidelines within the team.
Make sense of the product specs, be nimble in getting the issues resolved. Be a thought leader.
Critical Functional Skills
Solid understanding and knowledge of Java/C/C++. You should understand the concepts of multithreading, I/O, messaging, instrumentation etc and their implementation in Java/Any other ObjectOriented Language.
Proficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing. A solid foundation in the principles of computer science is desired.
Ability to write clean, modular, and loosely coupled code by the use of design patterns.
He/She should be able to break down and architect complex software systems. For example
BuildCars Availability Engine for Ola.
Strong decisionmaking ability
Deep expertise in at least one programming language & tech stack.
Substantial experience in building complex and scalable solutions.
Strong object oriented design skills, ability to apply design patterns, and an uncanny ability to design intuitive module and class level interfaces
The ability to do deep problem solving and build elegant, maintainable solutions to complex problems.
Experience leading multi engineer projects and mentoring junior engineers
Experience with full life cycle development in any programming language on a Linux platform
Comprehensive operational experience including, optimizations, deployments and tuning servers like apache/mysql/tomcat/solr
Prior experience in working with Agile software methodologies (XP, Scrum), TDD, and Continuous Integration(CI/CD) a plus.
Experience in building data driven web application design and development is a plus
Expert level experience in building a scalable, large and complex business application
.Experience Required
:Typically with an experience of 5+ years of development experience in a product firm.
Must have lead, designed, architected and delivered at least 1 project in his previous assignments independently.
Minimum Qualifications Required
Btech/MS from a reputed Institute
Deep expertise with any or combination programming languages: Java, C++, C#, Ruby, Scala,
Go any object oriented high level proprietary or open source language with strong programming constructs. We are not skill specific but go by strength in competencies Machine coding Single machine in memory program
Need a working code with functionality Readable and well designed code with right abstractions, separation of concerns,right design patterns
Performant code with concurrency and efficient data structures
Write test cases covering the happy path and edge cases
Problem Solving
Choose the right combination of data structures to solve the problem
Identify most edge cases for the problem
Identify opportunities of parallelism: utilizes multicore solutions where applicable
Design & Architecture
Distributed systems design and system interaction
Identify API signatures
LLD with class design
Solve for performance & availability
Work Location:Mumbai,Gurgoan,Indore,Bangalore,Hyderabad
- J2EE
- Web services
- JSON
- JSP Servlet
- Exception handling
- Multithreading
- Rest API
- Microservices
About us:-
Zupee is India's hottest Real Money Gaming Platform
With in 1 yr of start, we just had an initial team of around 30 people, these 30 were successful to bring 10 Million+ users and an overall consumer spend of 1.5 Billion USD on the platform, the journey which needed years to be covered was covered with in 1yr. As we speak today, Zupee has been profitable for almost an year now and has ended the year 2020 with a team size of 70+ and over all growth rate was mapped around 20X.
Our user base has significantly gone up and we have invested highly in technology and have got best in class tech stack, it's time to add the backend developers who can help us scale up the platform so that we can drive profitable growth and become the market leader in our space.
Backend Developer :- (3 - 12 yrs)
What You'll Need?
- Knowledge of languages (JavaScript, Python) and frameworks/systems (nodejs)
- Strong analytical skills and aptitude
- Understanding of data architecture, software design and best coding practices
- Understanding of TCP/IP networking concepts and technologies
- Ability to learn new languages and technologies
- Experience with databases (both SQL and NoSQL)
- Familiarity with Agile development methodologies
- Working knowledge of Linux
Notice Period: Immediate to 60 Days
Below is the JD
Expert: Micro services. Core Java and Spring framework (MVC, Boot).
Practitioner: IT experience in Agile, Test Driven Development approach and software delivery best practice. Strong design and technical skills. Continuous integration/deployment pipelines.
Desirable: ReactJS, Experience with Databases. Preferably Oracle. Knowledge of working in cloud environment. Preferably PCF and AWS.
Joining location will be either Gurgaon, Chennai & Bangalore only.
Skills Mandatory Skills
JAVA Micro service Java8+, Spring Boot, Micro services Devops, CI/CD 40
- Owns team's output and E2E definition and execution of SDLC. Drives sprint planning, estimates & prioritizes tasks, Keeps key stakeholders updated on progress, milestones, and any potential slippages.
- Identifies pitfalls across codebases proactively. Writes model code that is looked up to. Understands internals of programming languages & runtimes. Creates common reusable components/libraries- Uses advanced data structures.
- Designs API contracts between large systems with end-to-end service design and active leadership towards long-term sustainability including versioning, complex migration plans, impact analysis across products.
- Owns NFRs and pushes the envelope on performance, scalability, and high availability with cognizance towards the cost of infra. Drives tech stack selection independently, mentors junior engineers. Evangelises of generic platform building across the organization.
- Troubleshoots unseen issues across codebases. Solves large end-to-end cross-cutting problems with elegant solutions with an eye on long-term sustainability.
- Partners with and influences product managers on “how”. Leads the pack on hiring and evangelizes steeper hiring standards towards building an A+ team. Represents company on external platforms/conferences.
Qualifications:
- Bachelor's Degree in Computer Science or similar discipline
- 7+ years relevant work experience in software engineering while leading teams.
- Proficiency in more than one modern programming language such as Python (preferred) associated tech stack to write maintainable, scalable, unit-tested code
- Experience in building complex software systems that have been successfully delivered
- Should be strong with System Design and Database designing
- Deep understanding of design patterns, optimizations, deployments with Strong object-oriented design skills
- Experience mentoring other software engineers.
- Experience with full life cycle development in any programming language









