Sr. Ruby on Rails Engineer

Job Details:

• Role: Senior Staff Engineer, Java, Node JS
• Experience: 7.5 -9 Years
• Employment Type: Full-time
• Work Mode: Bengaluru (Onsite- 5 days)

Job description

REQUIREMENTS:

• Strong experience in Backend Engineering, Microservices, and Distributed Systems
• Deep hands-on expertise in Java and Node.js development 
• Strong experience in designing and developing RESTful APIs and backend services 
• Strong understanding of OOP, Data Structures, Algorithms, and Software Design Principles 
• Hands-on experience with PostgreSQL, MongoDB, or similar databases 
• Experience with system design, scalability, fault tolerance, and performance optimization
• Experience with Redis, messaging systems, and event-driven architectures
• Hands-on experience with Git, automated testing, CI/CD, Docker, and Kubernetes
• Strong understanding of API security, authentication, and authorization
• Experience with observability, monitoring, and production support
• Strong troubleshooting, analytical, and problem-solving skills
• Experience working in Agile/Scrum environments
• Excellent communication and stakeholder management skills
• Experience with Spring Boot, TypeScript, NestJS, Kafka, and AI-assisted coding tools is preferred

RESPONSIBILITIES:

• Design, develop, and maintain scalable backend services, microservices, and APIs
• Build high-performance RESTful and event-driven applications
• Own system design, data models, integrations, scalability, and reliability
• Collaborate with product and engineering teams to deliver business solutions
• Write clean, secure, maintainable, and well-tested code
• Conduct code reviews and mentor junior engineers
• Troubleshoot production issues and perform root cause analysis
• Improve CI/CD pipelines, monitoring, logging, and operational practices
• Optimize application performance, database efficiency, and system scalability
• Participate in architecture discussions, design reviews, and technical decision-making
• Implement security best practices and engineering standards
• Support platform modernization and continuous improvement initiatives
• Leverage modern development tools and AI-assisted coding practices to improve productivity
• Participate in Agile ceremonies and collaborate with cross-functional stakeholders
• Ensure delivery of high-quality, reliable, and scalable backend solutions.

Qualifications

Bachelor’s or master’s degree in computer science, Information Technology, or a related fields

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

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.

Mandatory Criteria

• Strong knowledge of React Native fundamentals — components, hooks, navigation, and state management.
• Ability to build iOS and Android apps from the same codebase.
• Experience with Expo SDK for building, testing, and deploying apps.
• Familiar with Expo’s managed vs. bare workflow, push notifications, deep linking, and app store deployments.
• Understanding of mobile app performance optimization and experience integrating with REST/GraphQL APIs.
• Proficiency in local storage, offline sync, and permissions handling.
• Ability to implement pixel-perfect UI from Figma/Sketch with cross-device responsiveness.
• Hands-on experience with Git/GitHub workflows, CI/CD tools (Expo EAS, Fastlane), and testing frameworks (Jest, Detox).
• Comfort using VS Code, debugging tools, and running Docker, emulators, or local test servers without lag.

If interested kindly share your updated resume on 82008 31681

Responsibilities: 

• Help impacts software quality and customer experience (CX) of product features. 
• Able to convert an LLD into code. Codes may need some refinement. 
• Solutions are tested (continuously testable, when possible) and may need 
• refinement. 
• Able to write reusable and well-structured code. 
• Understands software architecture (layers, software component, etc), has 
• knowledge about patterns 
• Understand and can use Algorithms, Data structures in solving problems. 

Basic Qualification: 

• Bachelor's degree in computer science or related technical discipline 0-1 years of experience 
• Impactful internship, if fresher out of college- preferred with reputed techno-product orgs 
• Excellent Functional skills- understands software architecture (layers, software 
• components) and has knowledge about design patterns. 
• Programming experience with at least one modern language such as Java, Node.js including object-oriented design. 
• Computer science fundamentals in object-oriented design, data structures, algorithm design, problem solving, and complexity analysis. 

Position: Sybase Developer

Location: Bangalore /Pune

Exp.Level: 8+ Yrs

Proven experience as a. Sybase Developer

Familiarity with Oracle, Sybase, Performance tuning and Optimization

Required Skills: Sybase, Performance tuning and Optimization

• Challenge technical decisions and web service designs and provide inputs for improvement
• Provide qualified code (tested and documented)
• Fix issues that arise from testing/customers
• Create or update all the relevant and required technical documents (design, architecture, )
• Follow quality development rules and recommendations (unitary test, change management, build management, Software factory…)
• Perform code reviews and suggest improvements
• Work in Agile mode and Test Driven development process
• Collaborate and work closely with all stakeholders

• Hardcore developers who can write performance-based quality code and drive code
• Preferred: Java1.8, Junit, Springboot, Dropwizard, RabbitMQ, Jenkins jobs, NoSQL DB (MongoDB, Neo4j), Docker, and DevOps (Optional: Python, AWS)
• Knowledge about Secure coding guidelines, Sonarqube, Configuration Management (Perforce), Jira
• MUST have experience in Scrum/Agile SDLC
• Value Add – experience on the server side in IPTV/OTT/STB

We are looking to hire Node.js Backend developers to build a consumer-friendly social commerce app.

You can apply if you have knowledge of JavaScript and frameworks/systems (nodejs) and

• Strong analytical skills and aptitude Good Understanding of architecture, software design and best coding practices
• Ability to learn new languages and technologies
• Experience with databases (both SQL and NoSQL)
• Familiarity with Agile development methodologies
• Good working knowledge of Linux
• Excellent communication skills

Plus points:

• Knowledge of Redis, Mongo and Mysql.
• Knowledge of AWS services.
• Knowledge of CI/CD pipelines.
• Deep understanding of Database Indexing.
• Knowledge of microservices architecture.
• Knowledge of golang/rust.

Working with an early stage startup can get you an opportunity to build systems from scratch, exponentially grow your career and become industry leaders. You will be working with experienced software engineers from top IITs, unicorns and soonicorns who have built systems for millions of users

DUKAAN - Create Your Online Store in 30 Seconds

Dukaan is an app that allows offline businesses to sell their products and services online. On our app, the users can make beautiful product catalogs (catalogs) right from a smartphone and share with their customers easily on different social media apps such as Whatsapp Business, Whatsapp, Facebook, Instagram, etc. Praised by users all over India, this app has saved declining businesses by helping them transfer their shop online. The journey has just begun and we are on a mission to make India truly Digital.

Dukaan is currently powering over 5M e-commerce stores built by Indian small businesses and growing at a crazy rate.  

We are looking for a Backend Engineer to join our team who will be part of our new innovations team.

Requirements:

1. Strong knowledge of Django, Django Rest Framework, and their design principles.
2. Strong knowledge of Django ORM, should be able to leverage it to write complex and optimized queries (E.x Q queries, Case, When, Select related, prefetch related, Subqueries, Annotations, Aggregations, Filtering, etc.).
3. Should be able to override DRF serializers, filters, and view set completely according to needs.
4. Should have good experience in Class-Based Views to write the backend API.
5. Sound knowledge of database design patterns and modeling them to Django models.
6. Sound knowledge of how to write test cases for the APIs.
7. Should be able to write optimized pythonic code adhering to python PEP standards.
8. Strong knowledge of python packaging and how to architect a codebase that should be easily scalable and not get cluttered.
9. Strong knowledge of REST API design patterns.
10. The ability to write RAW SQL queries and further database-level coding will be a plus.
11. Good Understanding of python’s asyncio, threading, and multiprocessing library, their benefits and limitations along with their appropriate use cases.
12. Hands-on knowledge of celery and its corresponding message broker such as RabbitMQ, Redis, etc.
13. Experience with building a CDC(Change Data Capture) pipeline will be a plus.
14. Experience with Apache Kafka, Kafka connect and Debezium will be a plus.
15. Experience with open source will be a plus.
16. Good knowledge of Algorithms and data structures.

Responsibilities:

1. Understand the ins and out of the existing codebase and have a good grasp of it.
2. Write clean, stable, and scalable code.
3. Write unit test cases for the APIs.
4. Do whitebox and blackbox testing for your own code and as well as others if required.
5. Understand and implement fast prototype solutions for business needs.

Responsibilities:

• Thorough understanding of Reconciliation and hands on development experience on Intellimatch 9.2.7 or higher version
• Comprehensive understanding of SDLC in developing new Reconciliations in IntelliMatch. Involvement across all stages of Software Development life cycle (SDLC) including business requirement analysis, data mapping, validate data against requirement, build, unit testing, peer reviews, systems integration and user acceptance testing.
• Analyze & develop Test Strategies, design Test Plans, & generate and execute Test Cases.
• Should be able to perform enhancements, whereby need to analyze existing set-up and understand the requirement by performing proper impact analysis, provide estimate and deliver quality code.
• Independent player should be able to liaise with different team to re-solve/get dependencies on time. Should be able to for-see issue/risk and intimate the same to team lead / project manager.
• Should be able to guide support team.
• Deep knowledge on IntelliMatch Database linkage and functionalities is necessary for timely resolution of user queries.
• Propose improvements related to the development and support activity.
• Develop stored procedures to build reports for the end users using SQL 2016