Rhapsody Java Developer

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 We Expect:

• 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.

What You Will Do:

• 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:

• 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

Requirements

• Design and implement a full-stack web application using Python Django framework and ReactJS.
• 1+ years of experience in building and deploying web applications.
• Experience in designing and using RESTful APIs.
• Basic knowledge in front-end technologies such as JavaScript, , ReactJS, HTML5, and CSS3.
• Understanding of fundamental design principles behind a scalable application.
• Understanding of databases, SQL and non-relational, plus the Django ORM.
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Experience in web mark-up like HTML and CSS.
• Experience with data structure libraries.
• Familiarity with RESTful APIs.
• A knack for bench marking and optimization.
• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Familiarity with modern front-end build pipelines and tools.
• Experience with common front-end development tools such as NPM etc.
• Strong knowledge of Git version control.
• Experience deploying Python applications into production.
• Amazon Web Services (AWS) knowledge is a plus.
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Responsibilities

• Writing reusable, testable, and efficient code.
• Design and implementation of low-latency, high-availability, and performance applications using Django framework in Python.
• Create and use the REST APIs for communicating with other apps.
• Assess and prioritize feature requests and work in Agile framework.
• Implementation of security and data protection algorithms.
• Integration of data storage solutions like databases, key-value stores, blob stores, S3 etc.
• Improve the functionality of existing systems and applications.
• High commitment to work and taking ownership of deliverables.
• Help to research and influence our path forward with strategic technology initiatives.

About You

We are looking for passionate, enthusiastic, and proactive people that want to build their future with us, growing as we grow.

Dot Net candidate with a minimum of 4 years' experience, you are excited by the rare opportunity to work with the latest Microsoft technologies, rebuilding existing proprietary systems from the ground up.

You are a great communicator who makes a positive contribution working within a team to deliver excellent outcomes for Stake Holders.

If this, is you, come and join one of INDIAs fastest growing companies and enjoy both a flexible working environment and a great team culture.

Role/Core Competencies

• Familiarity with architecture styles And Expertise in Design Principles, Design Patterns, OOPS
• Solid knowledge of C#/.NET Framework knowledge,
• Hands on experience in .NET MVC, LINQ, AJAX, XML, Entity Framework Code First Approach
• Strong Experience in designing and developing the services using Web API.
• Experience in CSS, jQuery, Java Script, HTML5, Bootstrap
• Demonstrated ability to incorporate new technologies and techniques.
• Experience in working with Source Control System like TFS.
• Strong and effective inter-personal and communication skills (verbal and written).
• Knowledge of agile/scrum development processes.
• Working experience in Sql Server.

Responsibility includes:

• Participation in all stages of a project's SDLC including requirements gathering and documenting, high-level and low-level design, coding, testing, and deploying.
• Execute development tasks on projects and will test to guarantee the technical quality of the solution and handle security vulnerabilities.
• Transforms high-level statements of product feature into software design and implement it.
• Able to perform well in a team and as an individual and must have knowledge of SDLC process with documentation.
• Participation in all stages of a project's SDLC including requirements gathering and documenting, high-level and low-level design, coding, testing, and deploying.
• GUI and User Experience design and implementation in Web based applications with exposure to RESTful Service.
• On the need basis, estimates work efforts to support overall product planning & tracking activity.
• You will execute development tasks on projects and will test to guarantee the technical quality of the solution and handle security vulnerabilities.

Nice to have

• Understanding of Agile
• If you are good in preparing test cases & executing test plans

Required Skills:

• 3+ years of experience in the Development of JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands-on experience in Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem-solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem-solving skills.
• Ability to work in a fast-paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding AI/ML algorithms is a plus.

Responsibilities:

• Build and maintain REST APIs
• Proficient in Python or any other programming language
• Experience in writing Unit/Integration tests.
• Experience with Distributed Version Control System.
• Elasticsearch or Solr experience.
• NOSQL experience- Cassandra, MongoDB.
• Experience in Message brokers - Rabbitmq.
• Experience with AWS Infrastructure, Lambda, Docker/Containers

Desired to have:

• Should be pragmatic and realize when a solution is over-engineered as well as knowing when to spend time on creating the right abstraction that allows us to move faster in the long run.
• Passion for your work and striving to do things “the right way”.
• Familiarity with Agile/Lean process.
• Willingness to work in a Startup environment.
• Excellent debugging and optimization skills.
• Knowledge of emerging technologies and a solid understanding of the full product development life cycle.
• Excellent knowledge of mobile user experience, information architecture and trends

Qualifications:

• A Bachelor’s degree in Computer Science (or equivalent experience)
• M-Tech or advanced degree a plus
• Hackathon participation and accolades are a plus

Job Role:

• 4+ years of object-oriented Java / J2EE development
•  Full SDLC experience (requirements gathering, architecture, development, QA, etc)…
•  Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
•  Experience with SOAP / REST web services
•  Knowledge of SQL
•  Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
•  Must have worked on any one messaging solutions
•  Bonus Points for micro service design and development experience
•  Bonus points for any mobile development experience
•  Used Agile methodology
•  Bonus Points for experience working on Unix, shell scripting & Build Systems
•  Experience in performance optimization is an added advantage

SQL DBA, IMPLEMENTATION, SQL, DBMS, DATA WAREHOUSING

• - 5+ Years working experience as Java Development
• - Hands on using Microservices
• - Extensive experience on Spring boot / spring
• Primary Skill: Java, Microservices

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• Candidates with good experience with SDLC
• Minimum 3+ years of hard core coding experience is mandatory
• Excellent hands on coding in Java, J2EE, Spring, Struts