Software Engineer - Backend (Node.js)

🔴 Profile: Java Developer

🔷 Experience: 2+ Years

🔷 Location: Mumbai

🔷 Mode: Immediate joiners preferred

✨ What we want:

✅ Core Java expertise (Java 8+, Collections, Multithreading)

✅ Spring Framework proficiency (Spring Boot, Spring MVC, Spring Security)

✅ Database skills (MySQL, PostgreSQL, Oracle, Hibernate/JPA)

✅ Microservices architecture experience

✅ RESTful API development and integration

✅ Maven/Gradle build tools

✅ Version control (Git, SVN)

✅ Application servers (Tomcat, JBoss, WebLogic)

✅ Cloud platforms (AWS/Azure preferred)

✅ Frontend basics (HTML, CSS, JavaScript - nice to have)

✅ Testing frameworks (JUnit, Mockito)

Job Requirements for Java Developer Roles

* Strong hands-on expertise in Java programming.

* In-depth understanding of Java garbage collection mechanisms and their impact on application performance.

* Ability to write clean, efficient, and maintainable code.

* Familiarity with best practices for performance optimization.

* Strong problem-solving skills and attention to detail.

Please note that you will have to attach the following documents after Round 1 that will be needed for the client submission:

1. LWD confirmation
2. PF service history

Mode of work: Hybrid weekly 3 Times.

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology:

• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.

• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.

• Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.

• Globally present with offices US, India, UK, Australia, Mexico, and Canada.

• We offer 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.

• Wissen Technology has been certified as a Great Place to Work®.

• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Website : www.wissen.com

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.

Skill set Key words

Java17, Java Spring Boot, Kubernetes/AKS/Docker(Knowledge), Microservices, (MongoDB/DynamoDB)

Role and Resposbilities :

•  Hands on experience in Java back-end development and skills with Spring-boot framework

•  Real life experience with Continuous Delivery principles and related tools (Kubernetes, AKS, Docker)

•  Expertise with Microservices design

•  Understanding of the Design Patterns, Architectural Blueprints, UML and Application Design

•  Experience in stateful application and web sessions

•  Experience with MongoDB, DynamoDB

•  Excellent communication skills and an ability to work in a team

About AMAZECH SOLUTIONS

Amazech Solutions is a Consulting and Services company in the Information Technology Industry. Established in 2007, we are headquartered in Frisco, Texas, U.S.A. The leadership team at Amazech brings to the table expertise that stems from over 40-man years of experience in developing software solutions in global organizations in various verticals including Healthcare, Banking Services, and Media & Entertainment 

We currently provide services to a wide spectrum of clients ranging from start-ups to Fortune 500 companies. We are actively engaged in Government projects, being an SBA approved company as well as being HUB certified by the State of Texas. 

Our customer-centric approach comes from understanding that our clients need more than technology professionals. This is an exciting time to join Amazech as we look to grow our team in India which comprises of IT professionals with strong competence in both common and niche skill areas.  

Job Description

Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive and iterative delivery environment? You will be part of a large group of makers, breakers, doers, and disruptors, who love to solve real problems and meet real customer needs. 

We are seeking Software Engineers who are passionate about marrying data with emerging technologies to join our team. You will have the opportunity to be on the forefront of driving a major transformation and create various products that will disrupt and reimagine technology solutions by working with the best minds in the industry. 

Location: Bangalore, Pune (Hybrid / Remote)

Experience: 5-13 years

Employment type: Full time.

Permanent website: www.amazech.com

Role Description

This is a full-time Java Backend Developer role, based in Bengaluru with flexible remote work option. The Java Backend Developer will be responsible for designing, developing, and delivering complex Java-based applications and providing end-to-end support throughout the software development lifecycle. The successful candidate will collaborate with cross-functional team members, gather and analyze requirements, identify and prioritize technical and functional requirements and provide innovative solutions to address business challenges.

Qualifications

• Bachelor's or Master's degree in Computer Science (or equivalent technical degree)
• 5+ years of hands-on software development experience in Java/J2EE
• Experience in defining software architecture, design patterns, and solution design
• Strong experience in microservices architecture, Angular, Spring Boot Framework, Hibernate, and Web Services (SOAP and REST)
• Experience in cloud infrastructure, ideally with Amazon Web Services
• Strong knowledge in database design, SQL query optimization, and performance tuning
• Demonstrated ability to lead technical teams and mentor team members
• Excellent communication, analytical, and problem-solving skills
• Experience and knowledge of Agile methodologies
• Experience with AWS, GCP, Microsoft Azure, or another cloud services
• Proven ability to work well under pressure and deliver high-quality work within tight deadlines

Other Requirements

• Bachelor's or Master's degree in Computer Science (or equivalent technical degree)
• Strong interpersonal and relationship-building skills. 
• Ability to work independently and as part of a team. 
• Excellent verbal and written communication skills and ability to communicate effectively with international clients. 

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

What will I be doing? 👩‍💻👨‍💻

Leading parts of the product from inception to launch, and own large parts of the product’s execution.
Working with our Sales and frontend team to build products with the goal of delighting and increasing the success of our users.
Architecting, building, testing, and releasing product-facing features.
Contributing to our side projects and free tools for the education industry.

What do I need? 🤓

1-2 years of industry experience in a software engineering role, preferably building a SaaS product. You can demonstrate significant impact that your work has had on the product and/or the team.
Deep knowledge of a high-level programming language (for example, PHP, Python, etc.) but it doesn’t need to be a language that we use here! Great people are effective and learn what we use quickly (or introduce us to better ways of working)
Deep knowledge of SQL Databases
Experience with scalable distributed systems, both built from scratch as well as on AWS primitives
Willingness to learn and use new technologies
Extremely data-driven
Ability to debug complex systems

Brownie points 🍰

Using a framework (for example, Laravel, Code Igniter, Django)
Understanding of containerisation (Docker/Kubernetes) along with ability to deploy to AWS ECS (or similar tools)

Feel free to apply even if you feel unsure about whether you meet every single requirement in this posting. As long as you're a quick learner, and are excited about changing the status quo for tech recruitment, we're happy to support you as you come up to speed with our tech stack.

Perks 😍

Flexible vacation
Take a tutorial, on us
Monthly remote meals

Tech stack 🔨

PHP
Laravel
NodeJS
VueJS
Ionic Angular
Digital Ocean
AWS
MySQL

Why Classcard? 🚀

We are still in the early stages of our journey. You will be working closely with our users, acting on both their feedback and what our data says. Things you build here will have tremendous impact on both our business and Classcard as a company.
What happens after I apply? 🤔

1. Quick phone call with a member of our engineering team to find out more about your experience and why you want to work at Classcard.

2. Video interview:

   Technical discussion with a senior engineer
   Pairing on an interesting problem
   Meet the founders