
As one of the senior members of the backend development team at Mosaic, you will be
responsible for architecting and setting the standards for building our core backend/microservices.
Also, you will be responsible for shaping up the entire system for scale and collaborating
extensively with the frontend and design teams to create the best consumer experiences.
Responsibilities
● Develop microservices that will be used by the frontend through API endpoints.
● Translate business requirements into high quality code.
● Ensure that the code is deployed in a secure and scalable fashion.
● Focus on code maintainability and performance of application.
● Provide technical advice and assists in solving programming problems.
● Enhance Analytics and overall backend architecture for better performance.
Requirements
● 3+ years of backend/full-stack development experience
● 1+ years of experience on NodeJS
● 1+ years experience in building APIs in a microservice architecture
● Has experience managing other developers, recruiting and training.
● Experience in PHP is a plus
● Experience with AWS services such as Lambda, CloudWatch, CloudFront
● Has experience in code reviewing/being the gatekeeper for an entire project
● Experience with RabbitMQ or similar queuing system
● Experience with Redis/ElasticSearch is a plus
● Familiarity with CI/CD pipeline tools like Jenkins
● Good knowledge of working with Git
● A knack for benchmarking and optimization

About Mosaic Wellness
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Job Role Java lead
Experience 8+ years
Notice period Immediate
Location Bangalore
Note: OMS & Retail domain Experience is mandatory
Introduction
We are seeking a Development Lead (Dev Lead / Technical Lead) with strong hands-on experience in Java and
Microservices to lead a team of developers in designing, developing, and delivering high-quality, scalable
applications. The role requires a balance of coding, technical decision-making, and team mentorship.
Job Description
• Create, design, and implement layouts for new and existing software solutions.
• Must be able to lead a team of engineers and ensure high quality software delivery from the team. Be
approachable to the team members.
• Take complete ownership of the Design that they are responsible for.
• Ability to understand business requirements of clients and translate them into technical requirements.
• Identify impacts of planned work on existing functionality.
• Plan and estimate work to be completed.
• Conduct code reviews to ensure that the software deliverables are of the highest quality.
• Keep an eye on the Tech Debt and plan for managing at an acceptable level.
• Lead interactions with clients from a Tech team perspective.
Certifications :
• Oracle Certified Java Professional
• Spring Certified Professional
• Any NoSql / Cassandra / MongoDB certified developer
• GCP, AWS, & Azure Certified (Mandatory)
• Any retail OMS / Supply Chain product certifications
Primary Skills :
• 8+ years of proven experience in the industry, with at least 2 years as an Lead or similar role designing
and developing enterprise-scale applications.
• Bachelors in engineering / technology (4 year) or master's in computer applications (2 year)
• Must possess at least 6+ years of Software development experience.
• Expert knowledge in at least one object-oriented programming language like Java, one backend
framework like Spring Boot / Node JS, one UI framework like React JS / Angular JS and RDBMS or NoSQL
database.
• Excellent knowledge of front-end programming languages, such as HTML, CSS, JavaScript, and AngularJS,
with the ability to render server-side and client-side content.
• Helps identify newer practices and adoption of existing ones. Ensure that the code quality is maintained
via own and/or peer code reviews.
• Can lead the team in delivery of backend and user interface code. Ensure that the DevOps tasks are
executed well.
• Ensure that the software has the correct level of logging & monitoring in Production and LLEs.
• Exceptional problem-solving skills.
• Excellent written and verbal communication. Must understand the client’s business requirements and
translate them into software requirements. Has a view of the deliverable timeline and escalates when
needed.
• Ability to articulate technical designs & develop documentation, flowcharts, layouts, diagrams, charts etc.
• Experience in implementing OMS products for retail customers will be an added advantage.
• Ability to do estimation for the given requirements.
• Ability to lead technical discussions with clients.
• Must be able to do quick proofs of concepts and demos based on client requirements.
• Provide timely feedback on the performance of team members.
• Conduct interviews & provide feedback to achieve hiring objectives.
• Contributes to organization building functions such as hiring, training, mentoring, team building.
Secondary Skills:
• Participate in daily scrum calls and provide status updates, address issues proactively, and timely
reporting of risks to project managers.
• Take complete ownership of the non-functional requirements around Performance, Security/Compliance,
i18n/l10n, etc.
• Capable of leading a high-performance team in a two-week iteration cadence with frequent product
deliveries.
• Ability to socialize designs/ideas and collaborate with stakeholders.
• Self-motivated and works with minimal direction.
Excellent knowledge in Core Java (J2SE) and J2EE technologies.
Hands-on experience with RESTful services, API design are must.
Knowledge of microservices architecture is must.
Knowledge of design patterns is must.
Strong knowledge in Exception handling and logging mechanism is must.
Agile scrum participation experience. Work experience with several agile teams on an application built
with microservices and event-based architectures to be deployed on 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 tool like SVN, GitHub,
Bitbucket, etc.
Experience in using and configuration of Continuous Integration tools Jenkins, Travis, GitLab, etc.
Experience in design and development of SaaS/PaaS based architecture and tenancy models.
Experience in SaaS/PaaS based application development used by a high volume of
subscribers/customers.
Awareness and understanding of data security and privacy.
Experience in performing Java Code Review using review tools like SonarQube, etc.
Good understanding of end-to-end software development lifecycle. Ability to read and understand
requirements and design documents.
Good Analytical skills and should be self-driven.
Good communication with inter-personal skills.
Open for learning new technologies and domain.
A good team player and ready to take up new challenges. Active communication and coordination with
Clients and Internal stake holder
Requirements: Skills and Qualifications
6-8 years of experience in developing Java/J2EE based Enterprise Web Applications
Languages: Java, J2EE, and Python
Databases: MySQL, Oracle, SQL Server, PostgreSQL, Redshift, MongoDB
DB Script: SQL and PL/SQL
Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
OS: Windows, Linux/Unix.
Cloud Services: AWS and Azure
Version Controls/ Devops tools: Git, Bitbucket and Jenkins.
Message brokers: RabbitMQ, and Kafka
Deployment Servers: Tomcat, Docker, and Kubernetes
Build Tools: Gradle/Maven
· Good understanding of OOPS, design principles and design patterns.
· C# development experience.
· Experience with WCF is required.
· Experience of working with web API is required.
· Experience with Windows services and Winforms will be useful.
· Experience of working with .NET Core is useful. Some exposure is expected.
· Experience of working with MS SQL Server.
· Experience of working with micro services will be useful.
· Experience of working with any queueing middleware like MSMQ, Rabbit MQ, WMQ will be useful.
· Exposure to cloud provisioning will be useful, in particular Azure.
· Exposure to security vulnerabilities and top 10 from OWASP will be useful.
· Exposure to front end technologies will be useful. Though it’s secondary but any experience with
SPA libs and frameworks in particular will be useful. Experience with either Angular or React will be
useful.
· Experience with any or all stated tools – TFS, Git, SOAP UI, Postman, Fiddler,
· Experience with CI/CD devOps tooling and practices is useful.
Soft skills required
· Good communication skills, both verbal and written. S/he should be able to articulate well.
Responsibilities
- Design and build highly reliable, scalable and performant infrastructure for media heavy workflows.
- Own large technical deliverables and execute in a structured manner.
- Take the accountability of the overall health of the infrastructure you build.
- Platformize components as libraries, utilities and promote reuse.
- Be able to conceptualize and develop prototypes quickly.
- Lead by example, mentor and guide team members on everything from structured problem solving to development of best practices.
Requirements
- 4 to 10 years of industry experience in software engineering with at least 4 years in Video, Audio & Image processing and streaming technologies.
- Deep expertise with various codecs, compute efficiency, streaming protocols and network topologies for media heavy workflows.
- Deep understanding of your tools: Languages, frameworks, libraries and systems.
- Experience with abstracting requirements into frameworks.
- Hungry to learn, share knowledge, and enjoy mentoring others.
- Data driven, having customer empathy, striving to build best of class, performant services.
In this role, you will be responsible for building world-class technology products and platforms that are at the forefront of the technology revolution in the Indian healthcare ecosystem. You are someone who insists on the highest standards for quality, maintainability, and performance.
Please find below updated JD for Java requirement.
-Work with a performance-oriented team driven by ownership and open to experiment.
- -6+ years of Java advanced software development experience, with concurrent (multi-threaded) programming highly desirable.
- -Strong experience on Core Java 8, Java EE, Spring Boot, Maven and Docker including Multi-threading.
. -Strong problem solving skills, computer science fundamentals, data structures and algorithms.
- -Hands on experience with any SQL Database.
- -Ability to learn new technologies like ELK, stack, redis etc.
- -Must have expert level knowledge in Java, Springboot.
- -Must have knowledge or hands on experience in microservices, apache kafka and distributed caching.
. -Experience in distributed/scalable systems
- -Strong knowledge of design patterns and software engineering best practices.
- -Familiarity with standard development tools and processes: Git, Eclipse, JUnit test, debugging, profiling, etc.
. -Familiarity with CI/CD and DevOps
. -Strong knowledge and previous experience in end-to-end design, development and subsequent
support of large-scale data processing systems
. - Familiarity and confidence working in an agile development environment.
. - Good Problem solving skills
- - Good oral and written communication skills.
- - Strong debugging skills.
Roles and Responsibilities :
- Design, Develop, test and maintain software applications with MVC architectures, Microservices and scalable cloud-native apps.
- Perform hands-on coding and provide thoughtful code reviews
- Mentor and lead team members to continuously improve the quality and productivity of deliverables
- Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
- Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with the cross-functional team along with the client's team
- Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User-Focused, Adaptive
- Lean Principles & Analytical Thinking
- Project planning, timelines and milestones for execution and deliverables
- Participate in the Evaluation Review of your team member
Primary Skills
- Expert in Python with experience on Django.
- Expert in server programming, you should be able to implement complex business logic.
- Good understanding of the threading limitations of Python, and multi-process architecture.
- Good understanding of fundamental design principles behind a scalable application.
- Knowledge of event-driven programming in Python.
- Experience with python packages like Numpy, pandas, flask, Pyspark, pymongo, os, logging, re, pyyaml.
- Experience with swagger io module to expose API
- Strong unit test and debugging skills.
- At least 2 years of experience in RESTful API/HTTP/JSON`
- Knowledge of AWS cloud and python Boto lib.
- Proficient understanding of code versioning tools Like Git.
- Good understanding of Linux OS.
Secondary Skills:
- AWS Kinesis
- Web Sockets
- RAbbitMQ
- AWS Cloud formation
Writing well-designed, efficient, and testable code.
Delivering high availability and performance.
Contributing in all phases of the development lifecycle.
If you are exploring for opportunities to get a better work exposure & to get a chance to work for scalable products. Kindly go through the job description below & apply if you seem fit for this role.
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗠𝗮𝗻𝗱𝗮𝘁𝗲𝘀 :
JavaScript, MongoDB, NoSQL, NodeJS/Go/Ruby/Python Data Structure, Algorithms, Product company/ Startup experience.
𝗥𝗼𝗹𝗲𝘀 & 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:
" 𝗬𝗼𝘂'𝗹𝗹 𝗱𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗯𝘂𝗶𝗹𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗼 𝗯𝗲 𝘂𝘀𝗲𝗱 𝗯𝘆 𝗳𝗮𝗿𝗺𝗲𝗿𝘀 𝗮𝗻𝗱 𝗮𝗴𝗿𝗶𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀".
-Be involved and participate in the overall application lifecycle
-Main focus on coding and debugging
-Collaborate with Front-end developers
-Build high-quality reusable code that can be used in the future
-Develop functional and sustainable web applications with clean codes
-Troubleshoot and debug applications
-Conduct UI tests and optimize performance
-Manage cutting-edge technologies to improve applications
-Collaborate with multidisciplinary team of designers, developers and system administrators
-Follow new and emerging technologies
𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 2+ years.
𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻: Patna / Work from Home
𝗦𝗮𝗹𝗮𝗿𝘆: As per market standards
- 5-10 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 Elastic Search, Puppeteer
- Experience writing unit test
Years of Exp : 4 - 8yrs
Job Location: Mumbai/Bangalore
Job description:
We are looking for a Sr. Back end web developer/Lead passionate towards building high
performance web applications which can scale for B2C businesses. We are looking for
self-driven individuals who love to find innovative solutions and can perform under pressure. An eye for details and being proud of produced code are the must have attributes for this job.
Responsibilities.
●You will be responsible for converting Product team requirements to modular, testable and efficient code.
●You will be required to design and implement data storage solutions (Databases, caching
layers etc).
●You will also be required to cater to NFRs related to security and performance.
Skills
●At least 5 years of experience in working on NodeJS/Java/Ruby
●Proficiency in RDBMS such as MySQL/PostgreSQL.
●Experience of building/deploying applications on AWS is a definite advantage.
●Familiarity with some ORM (Object Relational Mapper) libraries like Sequelize is required.
●Experience in some NoSQL databases (e.g. DynamoDB/Elasticsearch/Redis Cache etc) is a definite plus.
●Good understanding on architectural patterns (e.g. MVC) is required.
●Good communication and analytical skills are the basic needs for this role.
●An urge to create awesome applications that people will enjoy using is a must.
●Other technologies : MySQL , Redis, AWS, Microservices, REST API .
●Knowledge of Javascript is preferable.
●AWS or some cloud experience.
●Should have built web application technology.
●Should have understanding of DevOps and Database.
●Should have done application performance tuning.
Qualification:
●Engineering graduates from Tier I or II institutes.
●B.E/ B.Tech/ MCA/ ME/ M.Tech







