Lead/Principal Backend Developer - Full Stack

Job Summary

We are looking for a Senior Backend Engineer with strong experience in Java, Spring Boot, and Microservices architecture. Candidates with server-side Kotlin development experience are highly preferred. Strong software engineering fundamentals, REST API development expertise, and experience building enterprise-scale applications are essential.

The ideal candidate should be passionate about clean code, testing, scalability, and product/platform engineering.

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and/or Kotlin.
• Build and enhance RESTful APIs and microservices-based applications.
• Develop high-performance, secure, and reliable enterprise applications.
• Participate in system design, architecture discussions, and technical decision-making.
• Write clean, maintainable, and well-tested code following industry best practices.
• Implement and maintain automated unit tests, integration tests, and other testing strategies.
• Collaborate with Product, Engineering, and DevOps teams to deliver high-quality solutions.
• Troubleshoot production issues and optimize application performance.
• Mentor junior developers and contribute to engineering excellence initiatives.

Required Skills

• 6–8+ years of backend development experience.
• Strong proficiency in Java.
• Experience with server-side Kotlin (preferred) or willingness to learn and work extensively in Kotlin.
• Hands-on experience with Spring Boot and Microservices architecture.
• Strong experience developing REST APIs.
• Experience building enterprise-grade applications.
• Good understanding of software design patterns and object-oriented programming principles.
• Strong knowledge of unit testing frameworks such as JUnit, Mockito, or equivalent.
• Experience with Test-Driven Development (TDD) is highly desirable.
• Knowledge of CI/CD pipelines and version control systems such as Git.
• Experience working with relational and/or NoSQL databases.

Requirements:

• Excellent knowledge of Core Java (J2SE) and J2EE technologies.
• Hands-on experience with RESTful services and API design is a must.
• Knowledge of microservices architecture is a must.
• Knowledge of design patterns is a must.
• Strong knowledge of Exception handling and logging mechanism is a must.
• Agile scrum participation experience. Work experience with several agile teams on an application built with microservices and event-based architectures to be deployed in hybrid (on-prem/cloud) environments.
• Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
• Experience in managing the Source Code Base through Version Control tools like SVN, GitHub, Bitbucket, etc.

Founded in 2012,leader in high-assurance digital identity verification technology.  Named to Forbes’ 2019 AI 50 list as one of America’s most promising AI companies, and a recent winner of API World’s Best Data API, technology applies artificial intelligence and machine learning techniques with trusted online/offline data intelligence from email, address, phone, IP, social media and the broader Internet to verify identities in real-time. Customers include three of the top five U.S. banks, seven of the top 10 U.S. card issuers, as well as the majority of leading digital banks, lenders and insurers across the U.S. We are funded by some of the world's best investors and entrepreneurs including Scale Venture Partners, Commerce Ventures, Work-Bench, Santander InnoVentures and Two Sigma Ventures.

The only way we can further our mission of becoming the single, trusted source of identity verification and eliminating identity fraud is by building the best team on the planet. This is where you come in!

We are hiring Software Engineers across all levels in Chennai!

What You'll Be Doing:

• You will partner with our globally distributed cross-functional teams (Product, Infrastructure, Engineering, Data Science) to conceptualize and develop new features and products in an Agile environment. 
• You will own end-to-end delivery of software components all the way to production, owning team features or systems. 
• You will be building web services and REST APIs at scale, and producing high-quality results with direct business impact. 
• You will be monitoring and improving existing deployments, ensuring that we are continuously improving our product. 
• You will be assisting our QA and support team in triaging and resolving production issues and addressing bugs.

What You'll Bring:

• You are interested in our tech stack (Java or Scala, SQL Databases, NoSQL, Microservices, and AWS)
• You will have strong computer science fundamentals: data structures, algorithms, various programming languages, distributed systems, etc. 
• You understand engineering best practices and seek to improve engineering standards, tooling and processes. 
• You write “good code” - easily understandable, secure and testable! 
• You are comfortable helping drive technical decisions within our Engineering team. 
• You have experience building applications at scale.

Perks & Benefits:

• Competitive base salary
• Equity - every employee is a stakeholder in our enormous upside
• A tech-first company culture driven by entrepreneurial thinking and talent
• A great team working in unison towards the same mission
• Transparency is what our product is built on—and so is our culture
• Daily catered lunch and snacks
• Generous health insurance for employees and dependents
• Flexible work schedule and work-from-home options
• Flexible PTO

We are an equal opportunity employer and value diversity of all kinds at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. 

• Experience in either of these Relational DB’s MS SQL Server / PostgreSQL / AWS Aurora DB / MySQL / Oracle / NOSQL DBs (MongoDB / DynamoDB / DocumentDB) in an application development environment and eagerness to switch DB.
• Design database tables, views, indexes
• Write functions and procedures for Middle Tier Development Team
• Work with any front-end developers in completing the database modules end to end (hands-on experience in parsing of JSON & XML in Stored Procedures would be an added advantage).
• Query Optimization for performance improvement
• Design & develop SSIS Packages or any other Transformation tools for ETL

• Banking / Insurance / Retail domain would be a plus.
• Interaction with a client a plus

• Knowledge in a Cloud Platform (AWS / Azure)
• Knowledge on version control system (SVN / Git)
• Exposure to Quality and Process Management
• Knowledge in Agile Methodology

• Team building (attitude to train, work along, mentor juniors)
• Communication skills (all kinds)
• Quality consciousness
• Analytical acumen to all business requirement
• Think out-of-box for business solution

• You will build cutting-edge secure and scalable systems by writing simple and efficient code.
• You will own the backend development for one or more of our modules and collaborate with architects, other engineers, and product managers to launch new products and/or iterate on existing features. You'll build and manage automated build/test/deployment environments
• Ensure high standards through code reviews, design reviews, architecture discussions
• You will ensure that the systems you oversee are secure, fault-tolerant, and are performing reliably at high volumes.

• Well-versed in data structures, algorithms, and software design. Programming experience with at least one of Java or Python and object-oriented design
• Knowledge of SQL, NoSQL databases, Messaging/Caching technologies, and AWS deployments is a plus
• Able to write unit integration tests with coverage of code & interfaces. TDD is a plus
• Exposure to the architecture and design (design patterns, security, reliability, and scaling) of new and current systems. Experience in building highly scalable business applications, which involve implementing large complex business flows involving multiple third-party integrations
• Prior startup experience is a plus

• Excellent knowledge of Unity, including experience with scripting, textures, animation, GUI styles, and user session management.
• Familiarity with level design and planning.
• Experience with game physics and particle systems.
• Experience with mobile and console game development.
• Experience optimizing memory and space usage for support of older hardware.
• Ability to constantly learn and stay in touch with evolving game standards and development technologies.
• Strong understanding of object-oriented programming.
• Familiarity with current design and architectural patterns.
• Knack for writing clean, readable, and easily maintainable code.

If you are looking forward for this opportunity, kindly apply with us with below asked details:

Total Experience:

CTC:

ECTC:

NP:

Current Location:

Hometown:

CartX is a small, fast-growing, and remote-first company. We are a high converting one-page checkout and post-purchase one-click upsell for thriving eCommerce stores. We are looking for a Senior Software Engineer to join our mission and work on our ambitious product roadmap. Ideal candidates have a solid technical background on complex systems.

→ What you will be doing:
– Solve engineering problems that affects hundreds of customers
– Develop and launch end-to-end new key features
– Take ownership and responsibility of challenging tasks
– Interact and collaborate with the team
– Research, innovate and propose new ideas that can lead to new projects
– Play an important role by shaping our company’s best practices and culture
– Learn fast and adapt quickly

→ Required
– 5+ years of experience as a Software Engineer
– Experience on LAMP
– Experience on Bitbucket
– Knowledge on API’s such as Twilio, Stripe and others
– Great communications skills
– Fluent in English (written and speaking)

→ What We Offer
- Work remotely from home or any co-working space
- Work with a top-notch engineering team
- Unlimited vacation policy
- Ownership and autonomy over exciting tasks
-  Be part of an exciting fast-growing startup