Sr. Java Developer

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

• 4+ years of experience in IT
• Demonstrable expertise in Golang development services, including a deep understanding of its syntax, advanced features, and standard library
• Familiarity with Go routines and channel patterns, as well as experience in writing high-performance Go code
• Solid grasp of web development fundamentals, including HTTP/HTTPS protocols, RESTful API design, data structures, and WebSockets
• Experience with designing and implementing microservices in Go and an understanding of containerization and orchestration technologies like Docker and Kubernetes

Company Profile 

App Innovation Technologies is leader in Mobile and Web based solutions development. With our extensive knowledge of this industry, our customers receive the edge needed to make their projects a true success. Our team of developers, analysts, designers, testers and project managers will complete projects on time to the agreed specifications with Mobile, Social, Cloud and Analytics’ expertise. 

We also provide a caravan of web-based products and Software services. AIT is a reputed web/Software development company with its headquarters based at Coimbatore, India. We have a creative team of skilled professionals who have in depth knowledge in various technologies including open source technologies and Microsoft technologies to service our valuable clients. Please visit our website https://www.aitechindia.com for more details.

Job Description

We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and tablet computers. Your primary focus will be development of iOS applications and their integration with back-end services. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.

Responsibilities:

• Design and build applications for the iOS platform

• Ensure the performance, quality, and responsiveness of applications

• Collaborate with a team to define, design, and ship new features

• Identify and correct bottlenecks and fix bugs

• Help maintain code quality, organization, and automatization

Skills 

• Proficient with Objective-C or Swift.

• Familiarity with RESTful APIs to connect iOS applications to back-end services

• Knowledge of other web technologies and UI/UX standards

• Understanding of Apple’s design principles and interface guidelines

• Knowledge of low-level C-based libraries is preferred

• Familiarity with cloud message APIs and push notifications

• Knack for benchmarking and optimization

• Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)

• Familiarity with continuous integration

Education Qualification:

• Undergraduate in Engineering related to Computer Science and Information Technologies and Postgraduate in Computer Science 

• Shouldn’t have Backlog or Arrear.

• Must have completed at least 3 month course. 

• Should be an Analytical thinker and Self Motivator 

About Numen (https://numenhealth.com):
Numen Health is a Health-tech company with a goal to reimagine healthcare in India. Through an amalgamation of our healthcare team with the power of AI and the Internet of Things (IoT), we make healthcare easier and accessible through a data-based preemptive approach. Our mission is to facilitate change in the healthcare industry by moving from a reactive approach to a proactive one.
We are a wonderful, young team with experience in scaling up Indian and international businesses from the ground up. We are looking for like-minded and enthusiastic people who are passionate about making a lasting difference and want to help us revolutionize the way healthcare is delivered to a billion Indian!

Our Vision:
To shift the healthcare ecosystem from a ‘Sick-care' approach to a ‘Holistic-healthcare' approach. We aim to do that by enabling doctors and caregivers to move from treating ailments to employing a data-based,
preemptive approach.
About Product:
We offer preventive healthcare programs to individuals to improve their health. These plans are crafted in consultation with their treating doctor and a dedicated care team remotely monitors the progress in real[1]time. For doctors, Numen is a virtual facility to cater to all of their patient’s needs, remotely.
Why Join?
At Numen, you have the opportunity to make tangible changes to the existing healthcare systems in India
making it preventive and affordable. By joining the Numen team, you get to be part of a young, dynamic
team that is passionate about making a change and a fast-paced environment with multiple opportunities to
learn and grow.

Job Overview:
Numen Health is looking for Tech Lead to join our Engineering team and lead all stages of the software product development life cycle. This will include analyzing system and user requirements, designing software flowcharts, writing clean Java code, troubleshooting bugs, and running tests to improve system functionality.
If you are a person who has proficiency in Java technologies, good analytical skills, the ability to design software systems and anticipate issues, and frame remedial actions with excellent teamwork skills; We
would like to speak to you.

Responsibilities:
1. Design, develop, scale, and maintain backend services in Java
2. Collaborate with the engineering and product team to discuss project definitions and goals.
3. Work on individual priorities, deadlines, and deliverables.
4. Improve reliability, scalability, observability, and security of the backend systems.
5. Write simple, efficient, and maintainable code
6. Function well in a fast-paced, rapidly changing environment
7. Ensuring best coding standards and practices to improve and maintain quality.

Requirements:
8. Bachelor/Master degree in CS or related field from a reputed college
9. Sound knowledge of Java technologies.
10. Solid grip on the programming basics like DS and algorithms, OOPS.
11. Experience with software design and application programming
12. Understanding & experience with software design patterns, restful APIs, and microservice
architecture
13. Experience with software design and application programming
14. Strong debugging skills
15. Exposure to CI/CD and Test-Driven Development
16. Nice to have are Unix / Linux, database SQl / NoSQL, Java Spring, working knowledge on
scripting (Perl, Shell Scripting).

Prior Experience:
17. 5 - 8 years of experience in java development
18. A hustler with the capability to think out of box and hence prior experience with Startups would
be a plus.
19. Understanding or Experience in Health-Tech is good to have
20. Good To have a Team Lead / Mentorship Experience.

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

Rules & Responsibilities:

Skills :

• Familiarity with the http://asp.net/">ASP.NET framework, SQL Server and design.
• Hands on experience using C# .NET, MVC, Oops Concept, Jquery, Bootstrap.
• Knowledge of  .NET languages 
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies
• Strong attention to detail
• Excellent troubleshooting and communication skills
• Knowledge of REST and RPC APIs
• Angular will be an advantage
• Able to work well in a team setting