Java Backend Developer

We are looking to expand our existing Python team across our offices in Surat. This position is for SDE-1 - Junior Software Engineer.

The requirements are as follows:

1) Familiar with the the Django REST API Framework.

2) Experience with the FAST API framework will be a plus

3) Strong grasp of basic python programming concepts ( We do ask a lot of questions on this on our interviews :) )

4) Experience with databases like MongoDB , Postgres , Elasticsearch , REDIS will be a plus

5) Experience with any ML library will be a plus.

6) Familiarity with using git , writing unit test cases for all code written and CI/CD concepts will be a plus as well.

7) Familiar with basic code patterns like MVC.

8) Grasp on basic data structures.

7+ years of experience in Python Development

Good experience in Microservices and APIs development.

Must have exposure to large scale data

Good to have Gen AI experience

Code versioning and collaboration. (Git)

Knowledge for Libraries for extracting data from websites.

Knowledge of SQL and NoSQL databases

Familiarity with RESTful APIs

Familiarity with Cloud (Azure /AWS) technologies

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

Location: Bengalore, India, Exp: 3-5 Yrs

Backend Developer (Golang) - Trading & Fintech

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:

 You should already be exceptional at Golang. If you need hand-holding, this isn’t the place for you.

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

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

 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 optimize high-performance backend systems in Golang for trading platforms and financial services.

 Architect low-latency, high-throughput microservices that push the boundaries ofspeed and efficiency.

 Build event-driven, fault-tolerant systems that can handle massive real-time data streams.

 Own your work—no babysitting, no micromanagement.

 Work alongside equally driven engineers who expect nothing less than brilliance.

Must have skills:

 Learn faster than you ever thought possible.

 Proven expertise in Golang (if you need to prove yourself, this isn’t the role for you).

 Deep understanding of concurrency, memory management, and system design.

 Experience with Trading, market data processing, or low-latency systems.

 Strong knowledge of distributed systems, message queues (Kafka, RabbitMQ), and real-time processing.

 Hands-on with Docker, Kubernetes, and CI/CD pipelines.

 A portfolio of work that speaks louder than a resume.

Nice-to-Have Skills:

 Past experience in fintech, trading systems, or algorithmic trading.

 Contributions to open-source Golang projects.

 A history of building something impactful from scratch.

 Understanding of FIX protocol, WebSockets, and streaming APIs.

Why Join Us?

 Work with a team that expects and delivers excellence.

 A culture where risk-taking is rewarded, and complacency is not.

 Limitless opportunities for growth—if you can handle the pace.

 A place where learning is currency, and outperformance is the only metric that matters.

The opportunity to build systems that move markets, execute trades in microseconds, and redefine fintech. This isn’t just a job—it’s a proving ground. Ready to take the leap? Apply now.

Job Description: Node.js Developer (3+ Years Experience)

Division/Department: Engineering

Industry: Insurance / Fintech

Employment Type: Full-Time, Permanent

Job Summary

We are looking for a skilled Node.js Developer who is experienced with JavaScript/TypeScript, databases, and modern AI development tools. You will build and maintain backend applications, design scalable systems, and use AI tools to enhance development productivity. The role involves backend development, database management, API development, and cloud deployment.

What You’ll Be Doing

Backend Development

• Build and maintain Node.js applications, services, and APIs.
• Write clean, readable JavaScript/TypeScript code.
• Create and manage REST APIs; work with GraphQL when required.
• Develop microservices and containerized applications (Docker).
• Participate in code reviews and help maintain coding standards.

Database Work

• Design database schemas for PostgreSQL, MongoDB, and Redis.
• Write optimized SQL and NoSQL queries.
• Implement indexing and manage database performance tuning.
• Handle database scaling and caching strategies.

AI Tools & Productivity

• Use AI coding assistants (GitHub Copilot, Cursor AI, Tabnine).
• Integrate AI APIs (OpenAI, Claude) into backend applications.
• Build features powered by AI/ML capabilities.
• Use AI tools to debug and enhance code quality.

Deployment & Operations

• Deploy applications on AWS, Azure, or GCP.
• Set up CI/CD pipelines (GitHub Actions, Jenkins).
• Work with Docker and Kubernetes.
• Monitor backend services and perform troubleshooting.

Job Requirements

Must-Have (2–7 Years Experience)

• Strong hands-on experience with Node.js and Express.js.
• Excellent understanding of JavaScript/TypeScript, ES6+, async/await.
• Experience with at least one major database: PostgreSQL, MongoDB, Redis.
• Knowledge of API development (REST, GraphQL).
• Hands-on experience with Git and version control.
• Experience with testing tools like Jest, Mocha, or similar.

AI Tools Experience

• Familiarity with AI coding assistants.
• Working with AI APIs (OpenAI, Claude, etc.).
• Experience using AI tools for debugging and code optimization.
• Basic understanding of prompt engineering.

Bonus Skills (Good to Have)

• Cloud platforms: AWS, Azure, Google Cloud.
• Docker, Kubernetes.
• CI/CD pipelines.
• Frontend exposure (React/Vue/Angular).
• Message queues: RabbitMQ, Kafka.
• Caching: Redis, Memcached.
• API security: JWT, OAuth2.

Mandatory Skills

Technical

• Experience building and deploying Node.js applications.
• Strong command over databases and efficient query writing.
• Comfort with AI-based coding tools.
• Ability to debug and solve backend issues independently.

Soft Skills

• Strong communication and teamwork skills.
• Self-driven and eager to learn new technologies.
• Ability to mentor junior developers (for senior positions).

Experience: 3-10 Years

Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)

Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)

Roles and Responsibilities:

• Must have experience in Microservice architecture with the ability to collaborate effectively with team members and build positive working relationships.
• Design and build and deploy APIs to meet business requirements.
• High level of commitment to business satisfaction and agility.
• Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
• Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
• Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
• Work in an agile environment to deliver high-quality solutions.
• Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
• Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)

Position: Lead Backend Engineer

Location: Pune, India (Initially Remote Due to COVID 19)

About the Organization:

It is one of the most exciting Bay Area Product Driven Organization in Logistics industry supporting more than 30,0000 customers.

As a software engineer on the Backend team, you will be building and owning backend services and infrastructure that power our core products. We strive for high standard of engineering quality while solving unique hardware as well as software challenges. You will have high impact roles at a relatively small company for our user base. You thrive in fast-paced, unstructured environments that require you to wear many hats and think on your feet.



What we are looking for?

• 4+ years of software engineering experience
• 2+ year of experience in Python/Django or Go
• Familiarity with Node.JS is a plus
• You write high quality and well-tested code to meet the needs of your customers.
• Good intuition for REST API design
• Start-up experience is a plus
• BS/MS/PHD in Computer Science or a related field (ideal)
• Preferably a Pune based candidate who can join at the earliest / Within a month

Should Be a Computer Science Graduate from a Tier-1 Engineering college like IIT/ BHU / NIT / VIT / COEP / PICT / BITS

Why join us?

1. Very high-growth
2. Passionate, collaborative, and awesome co-workers
3. Free lunches
4. Competitive salaries
5.  

As an SDE, you will develop a deep understanding of our business, work closely with development teams and own the architecture and end-to-end delivery of software components.

Requirements:

• Exp: 3 - 8 years.
• 4 + years' experience building successful production software systems.
• A solid grounding in Computer Science fundamentals (based on a BS or MS in CS or related field).
• The ability to take convert raw requirements into good design while exploring technical feasibility tradeoffs.
• Expertise in System design (design patterns, LLD, HLD, Solid principle, OOAD, Distributed systems etc. ), Architecture (MVC/Micro services).
• Excellence in technical communication.
• Has experience in mentoring other software developers.
• BS/MS in Computer Science or equivalent.
• Experience developing service oriented architectures and an understanding of design for scalability, performance and reliability.
• Demonstrated ability to mentor other software developers to maintain architectural vision and software quality.
• Demonstrated ability to achieve stretch goals in a highly innovative and fast paced environment.
• Expertise in delivering high-quality, innovative application.
• Strong desire to build, sense of ownership, urgency, and drive.
• Strong organisational and problem solving skills with great attention to detail.
• Ability to triage issues, react well to changes, work with teams and ability to multi-task on multiple products and projects.
• Experience building highly scalable, high availability services.
• The ideal candidate will be a visionary leader, builder and operator.
• He/she should have experience leading or contributing to multiple simultaneous product development efforts and initiatives.
• He/she needs to balance technical leadership with strong business judgment to make the right decisions about technology choices.
• He/she needs to be constantly striving for simplicity, and at the same time demonstrate significant creativity, innovation and judgme.
• Proficiency in, at least, one modern programming language.
• Experience in SQL or Non-SQL database.
• Strong sense of ownership, urgency, and drive.
• Demonstrated leadership abilities in an engineering environment in driving operational excellence and best practices.
• Demonstrated ability to achieve stretch goals in a highly innovative and fast paced environment.
• Excellent communication, collaboration, reporting, analytical and problem solving skills.
• Good understanding of at least some of the modern programming languages (Java) and open-source technologies

• Expertise in Java Microservices, Spring, Spring boot MongoDB and Redis 
• Hands-on programming skills
• Proficient communication skills