MEAN Stack Developer

Java Developer – Job Description 

Wissen Technology is now hiring a Java Developer 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 consultancy. 

Required Skills: 

• Exp. - 4 to 9 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.

Design, develop, and maintain backend services using Java

Build scalable RESTful APIs and microservices

Work with Spring / Spring Boot frameworks

Implement business logic, data access layers, and integrations

Optimize application performance, scalability, and security

Write clean, testable, and maintainable code

Perform unit and integration testing

Participate in code reviews and technical discussions

Collaborate with frontend, DevOps, and QA teams

Troubleshoot and resolve produc

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.

Requirements

• 3+ years of experience in the Development of JAVA technology.
• Strong Java Basics
• Linux
• 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
• Java 8
• Any Caching Mechanism
• Good at problem-solving

Good to Have Skills:

• 3 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.

Position: Technical Architect

Location: Hyderabad

 Experience: 6+ years

Job Summary:

We are looking for an experienced Technical Architect with a strong background in Python, Node.js, and React to lead the design and development of complex and scalable software solutions. The ideal candidate will possess exceptional technical skills, a deep understanding of software architecture principles, and a proven track record of successfully delivering high-quality projects. You should be capable of leading a cross-functional team that's responsible for the full software development life cycle, from conception to deployment with Agile methodologies.

Responsibilities:

●       Lead the design, development, and deployment of software solutions, ensuring architectural integrity and high performance.

●       Collaborate with cross-functional teams, including developers, designers, and product managers, to define technical requirements and create effective solutions.

●       Provide technical guidance and mentorship to development teams, ensuring best practices and coding standards are followed.

●       Evaluate and recommend appropriate technologies, frameworks, and tools to achieve project goals.

●       Drive continuous improvement by staying updated with industry trends, emerging technologies, and best practices.

●       Conduct code reviews, identify areas of improvement, and promote a culture of excellence in software development.

●       Participate in architectural discussions, making strategic decisions and aligning technical solutions with business objectives.

●       Troubleshoot and resolve complex technical issues, ensuring optimal performance and reliability of software applications.

●       Collaborate with stakeholders to gather and analyze requirements, translating them into technical specifications.

●       Define and enforce architectural patterns, ensuring scalability, security, and maintainability of systems.

●       Lead efforts to refactor and optimize existing codebase, enhancing performance and maintainability.

Qualifications:

●       Bachelor's degree in Computer Science, Software Engineering, or a related field. Master's degree is a plus.

●       Minimum of 8 years of experience in software development with a focus on Python, Node.js, and React.

●       Proven experience as a Technical Architect, leading the design and development of complex software systems.

●       Strong expertise in software architecture principles, design patterns, and best practices.

●       Extensive hands-on experience with Python, Node.js, and React, including designing and implementing scalable applications.

●       Solid understanding of microservices architecture, RESTful APIs, and cloud technologies (AWS, GCP, or Azure).

●       Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.

●       Should create automation test cases and unit test cases (optional)

●       Proficiency in database design, optimization, and data modeling.

●       Experience with DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes).

●       Excellent problem-solving skills and the ability to troubleshoot complex technical issues.

●       Strong communication skills, both written and verbal, with the ability to effectively interact with cross-functional teams.

●       Prior experience in mentoring and coaching development teams.

●       Strong leadership qualities with a passion for technology innovation.

●        have experience in using Linux-based development environments using GitHub and CI/CD

●       Atlassian stack (JIRA/Confluence)

1.Atleast 1.5 - 3 yr Experience in Mongodb

2.Overall 4-10 yrs Experience  in PHP/MERN Stack Development

3.Strong Experience in large data set

4.Strong Knowledge in anyone of PHP ( Yii2, Larvel,Codeigniter)

5.Good understanding of Code optimization.

6.Excellent in Designing & Architecture, handle AWS(Amazon Web Services) for our product in Financial domain.

7.Expert in working on core PHP,Oops,MySQL,Javascript,Ajax,HTML5,CSS3,& JQuery technologies

8.Proficient Understanding of Code Version Tools Such as Git ,Bit Bucket

9.The candidate should be well versed with problem solving skills,task breakdown  & code reviewing.

We are looking for a Senior Full Stack Rails Web developer with good communication skills. The Candidate MUST have good communication skills and should be comfortable taking Phone/Video calls with US employees.

Please see below the technical skillset required:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Strong Proficiency in HTML/CSS and experience with Bootstrap and FontAwesome
• Thorough understanding of ReactJS and its core principles
• Experience with popular ReactJS workflows (such as Flux and Redux)
• Experience with AngularJS
• Experience with NPM and NodeJS
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Experience with common front-end development tools such as Babel, Webpack, etc.
• Experience with popular frameworks like EmberJS, BackboneJS, KnockoutJS and Vue is a plus.

• Solid understanding of Ruby along with Rails 3, 4 and 5
• Solid understanding of gems like with devise, ActiveAdmin, Clockwork, SideKiq, Ransack
• Proficient with ActionCable, EventMachine, Websocket
• Excellent understanding of Rails query interface and DBMS like Mysql, sqlite, postgreSQL
• Proficient in creating test suites using Cucumber, Capybara, RSpecs, Minitests etc
• Proficient in HTML/CSS/Sass
• Experience in AWS Elastic Beanstalk and Capistrano deployments is a plus
• Experience in creating Ruby programs/scripts to automate tasks is a plus
• Experience with CMS systems like BrowserCMS is a plus

• Exp – 9+ yrs
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization is a solid plus
• Experience in GoLang and/or Rails and desire to work on back-end applications is a solid plus