Backend Developer (from SDE1 to SDE3)

We are looking for a highly skilled and experienced Senior Software Engineer with deep expertise in Java and the Spring ecosystem to join our product customization team. As a key contributor, you will design and build scalable, high-performance backend services that power mission-critical fraud detection and financial security systems.

You will work closely with project managers, architects, and other developers to create solutions that are robust, maintainable, and optimized for performance and security.

 Key Responsibilities:

• Design, develop, and maintain Java-based applications using Spring Framework and ReactJS, and related frameworks.
• Collaborate with product and architecture teams to translate business requirements into technical solutions.
• Write clean, maintainable, and testable code following industry best practices.
• Optimize application performance, reliability, and scalability in high-volume environments.
• Write well-designed unit tests using frameworks like JUnit and Mockito.
• Integrate with third-party services and APIs, ensuring secure and stable communication.
• Contribute to architectural decisions and system design discussions.
• Stay updated with emerging technologies and apply them to improve system performance or developer productivity.

Must-Have:

• 4+ years of experience in backend software development using Java 8 and above.
• Strong command of Java and Spring Framework.
• Proficient in building and consuming RESTful APIs.
• Hands-on experience with relational databases (PostgreSQL, MySQL, or Oracle) and SQL.
• Experience with unit testing frameworks (JUnit, Mockito) and CI/CD pipelines.
• Strong problem-solving and analytical thinking skills.

Bonus!

• Experience in fraud detection, risk scoring, or financial compliance systems.
• Knowledge of domain-driven design, event sourcing, or CQRS.
• Expertise in ReactJS

 Soft Skills:

• Excellent communication and collaboration skills.
• Strong attention to detail and a proactive mindset.
• Passion for continuous learning and mentorship.

 Why Join Us:

• Work on cutting-edge fraud prevention and risk management solutions used by top financial institutions.
• Collaborate with a passionate and experienced team in a high-impact domain.
• Collaborate with passionate and talented professionals on impactful challenges.

Context for the Candidates:

Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.

Key Discussion Points:

• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?

• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.

• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?

• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?

• Share best practices for gas optimization, contract upgradability, and backend scalability.

Evaluation Criteria:

1. Technical Knowledge:

• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.

• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).

• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.

2. Problem-Solving and Integration Skills:

• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.

• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.

3. Experience and Expertise:

• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.

• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.

4. Innovation and Critical Thinking:

• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.

• Discussion on the future potential of blockchain technology and how the tech stack can evolve.

5. Communication and Team Collaboration:

• Clear articulation of technical challenges and how to address them in a team setting.

• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.

We are looking for a PHP Developer to help us go global by building a world-class product.

spynPRO is a SAAS product for academy owners, event organizers and facility owners to manage and grow their business.
We are a small but growing team of 9 that is changing the way academies teach their students, organizers manage events and facilities manage slot booking. Take your career to the next level with us.

About our Engineering Department

We build new features on top of a stack using YII2 framework, consisting of web apps communicating through APIs, backed by MySQL databases and currently using Cordova for our Android and iOS apps
We don’t follow rigid Scrum or Kanban, but we do work in an agile, iterative way – we deploy changes multiple times a week to production and try to continuously improve and implement what works for us.

Here are some things you’ll be doing in the role (but not limited to):

Writing code, code reviews, fixing bugs, optimising server response, etc.
Understanding the problems to be solved, and breaking these down into small, actionable tasks.
Learning and helping others

So, what are we specifically looking for?

About 1-4 years experience in PHP framework, including both successes and failures, which help you make better decisions.
Good working knowledge of PHP MVC Frameworks, MySQL & HTML/CSS.
Significant experience in working on major systems in one or more languages: ideally you’ve built REST API endpoints on top of data storage layers, and understand concepts like authentication, caching, web security, and the way that frontends consume APIs.

What are we currently working on?

1. Developing a new webapp Workpod in Yii2 framework
2. Adding new features to existing product spyn
3. Developing cordova apps for above 2 products

JOB DESCRIPTION: BACKEND DEVELOPER

Do you want to work in a fast growing company by doing meaningful work and have fun doing it? Remitbee, a FinTech with headquarters in Canada and office in Chennai is seeking a skilled Backend developer with experience in Node JS. Individuals who apply for Remitbee careers should be passionate about tech and driven towards innovating the industry further with the Remitbee team. This position will be based out of Chennai or Remote.

This position also comes with the opportunity for career growth and working hour flexibility. We look forward to reading your application. At least 3+ years of experience in backend technologies like Node.js, Express, Sequelize

What will you do?

• Work in an agile team of developers, QA, DevOps and founders
• Implement new systems and redesign legacy systems, using leading technologies, to support advancing Research business requirements
• Research and analyze business and system needs. Explore solution options to recommend designs and technologies
• Writing test cases
• 
  

Skills and requirements:

• At least 3 years of experience in backend technologies like Node.js, Express, Sequelize
• Experience with automated task runners such as Grunt or Gulp
• Experience in Database like MySQL and/or PostgreSQL
• Comfortable applying engineering best practices for Test Driven Development, integration testing version control, release management, work estimation and planning
• Experience to work with Rest and GraphQL APIs
• You know how to use Git,
• You are passionate about code quality. Writing tests and documentation belong to your natural workflow.
• Participate in or lead all parts of the software development lifecycle, including analysis, design, programming, testing, implementation, and support.
• A history of active contributions to open source projects

Type: Full time

Location: Chennai

Experience: 3+yrs (Required)

Notice Period: 0-30 days (Preferred)

Work timing: 9 AM - 6PM IST

Position description:

• Architecture & Design systems for Predictive analysis and writing algorithms to deal with financial data
• Must have experience on web services and APIs (REST, JSON, and similar) and creation and consumption of RESTful APIs
• Proficiently writing algorithms with Python/Pandas/Numpy; Jupyter/PyCharm
• Experience with relational and NoSQL databases (Eg. MSSQL, MongoDB, Redshift, PostgreSQL, Redis)
• Implementing Machine Learning Models using Python/R for best performance
• Working with Time Series Data & analyzing large data sets.
• Implementing financial strategies in python and generating reports to analyze the strategy results.

Primary Responsibilities:

• Writing algorithms to deal with financial data and Implementing financial strategies in (Python, SQL) and generating reports to analyze the strategy results.

Educational qualifications preferred Degree: Bachelors degree

Required Knowledge:

• Highly skilled in SQL, Python, Pandas, Numpy, Machine Learning, Predictive Modelling, Algorithm designing, OOPS concepts
• 2 - 7 years Full-Time working experience on core SQL, Python role (Non-Support)
• Bachelor’s Degree in Engineering, equivalent or higher education.
• Writing algorithms to deal with financial data and Implementing financial strategies in (Python, SQL) and generating reports to analyze the strategy results.

• 2-5 years of work experience, preferably in a startup
• An engineering degree preferably, from a top-tier school (or equivalent experience)
• Hands-on experience in developing end-to-end applications using Node.Js, ReactJs,
• Knowledge of HTML/CSS, web standards, best practices
• Experience of working with databases - MySQL, MongoDB
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• An experience in writing clean, semantic code with cross-browser compatibility in mind
• Proficient understanding of code versioning tools, such as Git/SVN
• Excellent coding and debugging skills
• A passion and the ability to make beautiful, smooth, delightful web experiences
• A Will-Do attitude

• A team of aces, from top-tier schools and startups, to work with
• A fast-paced, data-driven, and fun work environment
• A huge appetite for new, disruptive, creative and implementable ideas
• An open work culture

• Competitive salary
• Great working environment, opportunity to work directly with the founders on very exciting real-life problems.
• Opportunity to grow really fast.
• Opportunity to hire a team & mentor them in the future.
• ESOPs

• Shortlist
• Intro call of 15min
• 1-2 Tech rounds
• HR round
• Offer rollout