
About Root Node
We’re an early-stage startup building intelligent tools for planning, scheduling, and optimization—starting with timetabling and warehouse logistics. Backed by deep domain expertise and a growing customer pipeline, we’re now building our core tech team. This is not just a coding job — it's a chance to build something meaningful from the ground up.
About the job
- Design and implement robust backend systems and APIs using Java or similar backend language and Spring Boot or equivalent frameworks
- Integrate backend services with existing custom ERP systems
- Work closely with the founder on product architecture, feature prioritization, and go-to-market feedback
- Take full ownership of features — from system design and development to deployment and iterative improvements
- Help shape our engineering culture and technical foundations
You're a Great Fit If You:
- Have 3+ years of experience in backend development
- Are strong in Java or similar languages (e.g., Kotlin, Go, Node.js)
- Have solid experience with Spring Boot or equivalent backend frameworks
- Have integrated with ERP or enterprise systems in production environments
- Are comfortable with both SQL (PostgreSQL) and NoSQL (MongoDB)
- Understand REST API development, authentication, Docker
- Have an entrepreneurial mindset — you're excited about ownership, ambiguity, and making decisions that shape the product and company
- Want more than just a job — you want to build, solve, and learn rapidly
What We Offer
- Competitive salary
- High degree of ownership and autonomy
- Ability to shape the tech and product direction from Day 1
- Transparent and fast decision-making culture
- A builder’s environment — solve real-world problems with real impact

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Job Title : Senior Software Engineer – Backend
Experience Required : 6 to 12 Years
Location : Bengaluru (Hybrid – 3 Days Work From Office)
Number of Openings : 2
Work Hours : 11:00 AM – 8:00 PM IST
Notice Period : 30 Days Preferred
Work Location : SmartWorks The Cube, Karle Town SEZ, Building No. 5, Nagavara, Bangalore – 560045
Note : Face-to-face interview in Bangalore is mandatory during the second round.
Role Overview :
We are looking for an experienced Senior Backend Developer to join our growing team. This is a hands-on role focused on building cloud-based, scalable applications in the mortgage finance domain.
Key Responsibilities :
- Design, develop, and maintain backend components for cloud-based web applications.
- Contribute to architectural decisions involving microservices and distributed systems.
- Work extensively with Node.js and RESTful APIs.
- Implement scalable solutions using AWS services (e.g., Lambda, SQS, SNS, RDS).
- Utilize both relational and NoSQL databases effectively.
- Collaborate with cross-functional teams to deliver robust and maintainable code.
- Participate in agile development practices and deliver rapid iterations based on feedback.
- Take ownership of system performance, scalability, and reliability.
Core Requirements :
- 5+ Years of total experience in backend development.
- Minimum 3 Years of experience in building scalable microservices or delivering large-scale products.
- Strong expertise in Node.js and REST APIs.
- Solid experience with RDBMS, SQL, and data modeling.
- Good understanding of distributed systems, scalability, and availability.
- Familiarity with AWS infrastructure and services.
- Development experience in Python and/or Java is a plus.
Preferred Skills :
- Experience with frontend frameworks like React.js or AngularJS.
- Working knowledge of Docker and containerized applications.
Interview Process :
- Round 1 : Online technical assessment (1 hour)
- Round 2 : Virtual technical interview
- Round 3 : In-person interview at the Bangalore office (2 hours – mandatory)
About Klevu:
Klevu is a discovery experience suite that revolutionises online shopping. It provides a range of SaaS based solutions, that are deep rooted in AI-ML technology and delivered via cloud for online retailers. Klevu is a global Finnish company that prides in diversity, great team, excellent partner network and global customer footprint. Learn more from www.klevu.com
Experience: 5+ years
Location: Ahmedabad, Gujarat
Responsibilities:
- Build, scale and maintain various services on the Klevu platform
- Design and develop solutions for business needs on the Klevu platform
Must have skills:
- 4+ years on experience with Java
- Experience in Web application development on Spring framework
- Experience working with database technologies – RDBMS or NoSQL
- Ability to communicate effectively within and outside the engineering team
- Familiar with agile software development process
Nice to haves:
- Experience in Hibernate, MySql, Redis, ActiveMQ or Kafka
- Experience in UI Frameworks like Jquery, React, Angular or equivalent
- Experience in REST API development
- Experience in debugging issues and checking production logs
- Experience working in eCommerce and/or SAAS startups
- Experience working with microservices architecture
What we offer:
- Being part of one of the most exciting search technology company from Nordics with global footprints
- Work with a team in 3 continents (North America, Europe, Asia)
- Excellent work culture, hands-on, result oriented
- Good salary and flexible hours
- 2-5 years of experience in building API services using NodeJS Express and related
frameworks
- Expert level understanding of NodeJS asynchronous runtime
- Expert level understanding of Javascript concepts on callbacks and closures
- Experience with Postgres, NoSQL, Redis, and Firebase real-time database
- Experience with AWS services like Elastic Beanstalk, Cloudfront, S3, EC2, Lambda,
API Gateway, SQS, etc
- Understanding of patterns and techniques for building scalable back-end
infrastructure including caching, rate limiting, authentication, and authorization
schemes.
- Experience in building highly scalable and high throughput services with
millisecond response times
- Experience working in a collaborative team environment
- Excellent communication & interpersonal skills
- Willingness to learn and pick up new technology along with patience to mentor
Bonus skills -
- Experience with ElasticSearch, Puppeteer
- Experience writing unit tests
Responsibilities for Jr. Node JS Developer: 3+yrs
· Should have relevant object-oriented application-building experience in a professional environment.
· Design and implementation of low-latency, high-availability, and performant applications.
· Implementation of security and data protection.
· Thorough understanding of relational databases such as MySQL or similar technologies.
· Excellent coding skills in Node.js, and JavaScript.
· Knowledge of working closely with code versioning tools like git.
· Excellent communication skills and being able to work independently or in a full team.
Required Skills:
· Strong proficiency with JavaScript.
· strong hold on Node.js and frameworks.
· Understanding the nature of asynchronous programming and its quirks and workarounds.
· Good understanding of server-side templating languages.
· Good understanding of server-side CSS preprocessors.
· Basic understanding of front-end technologies, such as HTML5, and CSS3.
· Understanding accessibility and security compliance.
· User authentication and authorization between multiple systems, servers, and environments.
· Integration of multiple data sources and databases into one system.
· Understanding fundamental design principles behind a scalable application.
· Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
· Creating database schemas that represent and support business processes.
Good knowledge on Microservices , spring boot , Rest API , Algorthims, Data Structures.
Always a plus who can join immediately.
About Client : Our client is an American company that develops, manufactures and sells solar micro-inverters, energy generation monitoring software and battery energy storage products
The Back-End engineer will develop, maintain, architect & expand cloud microservices. Codebase uses Java, Spring Boot, Mongo, REST APIs, MySQL. Applications are dockerized and hosted in AWS using plethora of AWS services.
Key Responsibilities and Outcomes
- Programming in Java + Spring Boot
- REST API with JSON, XML etc. for data transfer
- Multiple database proficiency including SQL and NoSQL (Cassandra, MongoDB)
- Ability to develop both internal facing and external facing APIs using JWT and OAuth2.0
- Familiar with HA/DR, scalability, performance, code optimizations
- Experience with working with highly performance and throughput systems
- Ability to define, track and deliver items to ones own schedule
- Good organizational skills and the ability to work on more than one project at a time
- Exceptional attention to detail and good communication skills
Minimum Qualifications
- B.E/B.Tech in Computer Science from top tier college and >70% marks
- 70% or 7 CGPA throughout in education.
- Top 100 Engineering colleges only (NIRF ranking)
- Stability in job.
- Experience with SQL + NoSQL (Preferably MongoDB)
- Experience with Amazon Web Services, JIRA, Confluence, GIT, Bitbucket
- Ability to work independently and as part of a project team
- Strong organizational skills, proactive, and accountable.
- Excellent critical thinking and analytical problem-solving skills
- Ability to establish priorities and proceed with objectives without supervision
- Ability to communicate effectively and accurately
- Clear concise written project status update throughout the project lifecycle
- Highly skilled at facilitating and documenting requirements
Responsibilities for Staff Engineer role:
- Having experience in Java along with Springboot, Micorservices, RDBMS
- Experience required: 6yrs to 8 yrs.
Responsibilities:
- Develop back-end server that includes business logic linked to various data storage solutions including database.
- Design back-end server system by using technology appropriate for server environment.
- Develop and maintain Rest services for Samsung Pay Develop RESTful services that are highly scalable, available, maintainable.
Requirements:
- Excellent Programming Skills.
- Strong problem-solving abilities.
- Analytical skills, and troubleshooting.
- Good understanding of algorithms, data structures, and performance optimization methods.
- Hands-on with Design, Coding, Debugging, and Testing.
- Excellent Communication & Interpersonal Skills, Team Player.
Programming Skills:
- C, C++, and/ Java Jquery, Spring, Struts. Hibernate, iBatis, Node.js Web Services, Web Security, MySQL.
- Memcache/Redis, Cassandra/HBase, MongoDB/CouchDBMap Reduce, Hadoop, Spark, Hive, Mahout.
- Fast Data Processing - Storm - Rules Engine - Drools.










