
- Proven hands-on Software Development experience
- Proven working experience in Java development
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Experience as a Sun Certified Java Developer
- Experience in developing web applications using at least one popular web

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Job Summary:
We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.
Responsibilities:
- Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
- Contribute to the architectural decisions and system design discussions.
- Write clean, efficient, and testable code following best practices.
- Optimize application performance, scalability, and reliability.
- Integrate third-party APIs and work with external systems.
- Participate in code reviews, mentor junior developers, and support the team’s technical growth.
- Work closely with DevOps to support CI/CD pipelines and deployments.
- Troubleshoot and resolve complex issues in production and non-production environments.
- Keep up with industry trends and advocate for best practices in backend development.
Required Skills:
- 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
- Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
- Experience designing and consuming RESTful APIs and working with microservices architecture.
- Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
- Proficient with version control systems like Git and tools like Maven or Gradle.
- Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
- Experience with unit testing and integration testing (JUnit, Mockito, etc.).
- Good knowledge of software design principles, data structures, and algorithms.
- Excellent problem-solving skills and attention to detail.
Developed in formal collaboration with the University of Cambridge in May 2000, HeyMath! is an Ed-Tech company whose mission is to Raise the Game in Maths for school systems around the world. We do this using technology to deliver engaging teaching methodologies and personalised learning paths for students. HeyMath! has been successfully adopted by CBSE schools since 2004, with positive outcomes for the entire ecosystem.
Check us out at www.heymath.com
We plan to work mainly from home in 2021 and the virtual office atmosphere is collegiate, informal and friendly, with small high-impact teams making a difference to customers.
What we are looking for:
• Experience in building and re-engineering cloud based solutions on AWS.
• Strong knowledge of Object Oriented Programming(OOPS) and design patterns is a must.
• Hands-on development on Spring MVC framework.
• Experience working on Java 8 or above.
• Must have very good knowledge of RDBMS such as MySQL and performance tuning of the same.
• Good knowledge of Javascript frameworks such as React JS.
• Exposure to server-side and client-side caching mechanisms.
• Basic understanding of proxy servers, load balancers and CDN.
• Ability to debug the applications and provide instant workable solutions.
• Experience working on Elastic Search / Kafka / Kubernetes or all is a nice to have.
We are seeking extremely smart programmers who are gung ho about building large scale systems that are going to have a big impact on millions of customers.
Responsibilities:
- Design and develop products by working closely with business team.
- Gain experience with hands on coding and independent ownership of software components.
- Build performant, scalable, enterprise ready back end architectures that can support millions of users in parallel.
- Follow strong engineering best practices and champion their adoption.
Requirements:
- 2+ years’ experience in software product development and delivery.
- Bachelors or Masters degree in engineering from a reputed institute(preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem solving abilities.
- All experience should be from good product development or e-commerce background.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Expert at Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred). NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.
· 3+ years of Java backed application development and implementation experience.
· Minimum of one year of experience in Cloud, AWS Engineering & Development .
· Demonstrated knowledge of Distributed and Scalable systems.
· Experience on AWS Services is a big plus, such as EC2, ECS, ECR, Lambda, Elastic Cache, API Gateway.
· Knowledge about API design standards, patterns and best-practices especially Swagger and OpenAPI 3.0, REST, SOAP, MQ, JSON, Microservices etc.
· Java Microservices, RESTful Web Services.
· Spring Boot, Spring Cloud, Hibernate.
· JMS, queues, JBoss/Wildfly.
· Tools - JUnit, Easymock, Mockito, Docker, Kubernetes, Teraform.
• Architect, develop and maintain highly scalable, reliable and secure distributed backend
systems on Cloud (AWS or Azure) or on-premises environments for Mihup, its customers
and partners.
• Work closely with your fellow engineers to develop systems capable of concurrently
processing massive amounts of voice data both in online real-time as well as offline
environments.
• Drive accountability for test driven development, delivery of high-quality features and
resilient enterprise class solutions.
• Lead a culture of team ownership and direct individual and team accountability to
continuously improve how they work to achieve results.
• Work in a startup environment, pushing boundaries with deep involvement with business.
Requirements (what we are looking for)
The right person is better than the right set of experiences and these are the traits we’ve
identified make great additions to our team.
• BE//BTech/ME/MTech in Computer Science or a related field from a Tier I or Tier II
University.
• 6-8 years of hands-on software development and deployment experience (experience of
working in a consumer product startup during its growth phase will be a plus) of which 1
– 2 years of experience would be in leading a team of software developers.
• Expertise in Java 8+ and Spring Boot is a must
• Good experience in messaging platforms like RabbitMQ/Kafka
• Good experience in distributed systems and relational & NoSQL databases like
PostgreSQL, MySQL, Redis, MongoDB, etc.
• Expertise in one or more of: Java, NodeJS, GoLang, Python would be preferred
• Must have hands on experience in products which handle multiple concurrent calls (API),
handle CPU intensive jobs, consist of multiple asynchronous system calls.
• Worked on microservices based architecture and design
• Managed/ Owned infrastructure on AWS/Microsoft Azure/private clouds and setup high
availability systems
• Knowledge of Docker and Kubernetes
• Knowledge of RESTful APIs, caching concepts, the HTTP protocol and general web
architecture
Pluses
1. Anything that will let us know more about who you are that you would like to share such
as Blogs, Twitter, Medium, GitHub etc.
At Embibe, we have just one mission - to truly personalize education. Because every child deserves it. This has led us to embark on this noblest of journeys to deliver life and learning outcomes for every student! Rooted in consumer behavior, we are leveraging AI and Data Science to deliver personalized achievement journeys for every student.
We are a tribe of intellectually fierce people from diverse backgrounds, focused on building cutting-edge products that empower everyone in the education ecosystem - students, teachers, educational institutes and parents. We enable a deeper understanding of student behavior, their strengths and weaknesses through analysis at a granular level. It is this shared vision of democratizing and personalizing education that unites us all.
Embibe is powered by AI and data science algorithms, using these contents being recommended across platforms and millions of learning outcomes delivered to students. Since its inception, millions of students have used the imbibe platform for learning concepts and outcomes. Academic users have spent 52mins on average with an average of 3 sessions daily. Embibe has been launched for 12 languages across India with support for 361 Exams (English), and 120 Exams (Hindi) for K6-K12 having 22.6L+ Qs and 58k+ Tests, 29k videos, 50k+ 3D assets. Embibe is the world's largest live online public sector implementation in edtech for test preparation, NTA app which is powered by Embibe has 3.1Mn+ downloads, and 14.3Mn hours spent by users with total 13.4Mn sessions and 1.64Bn attempts.SchoolApp is currently being used by 1000s of schools across India and we are planning to scale it to 100Mn students with 1Mn schools with 10Mn teachers in the period of the next 3yrs.
Prerequisite
We are looking for a Software Engineer across levels who have ever contributed to any large-scale systems be it content platform e.g. Quora/Medium, streaming platform e.g. Netflix or Hotstar, activity log system e.g. Twitter feeds or payment systems like Razorpay to name a few. I/O, Read-Writes, DB connections, Distributed Locking, Memory, Bandwidth, High Throughput, Low Latency and minimal CPU cycles excite you!! You are deep thinkers and can bring ideas to the table, before starting writing the code!!
Interested? We'd love to hear from you.
Who are you?
● 2-14yrs years of relevant large-scale product company experience ideally in a fast-moving B2C/B2B environment.
● Programming. Proficiency in object-oriented and multi-threaded programming in at least one of the following languages: Java, Python,React.js, Node.js, Next.js, PHP, Golang etc.
● Deep understanding & experience of high-performance web-scale & real-time response systems, and large scale distributed systems.
● CS Fundamentals – exposure to a wide variety of problem spaces, Good in Data Structures and Algorithms Design, Problem Solving.
● Open source contributors and can do quick POC of technologies will catch our eyes.
● Expertise in designing, implementing and operating distributed Systems architectures and concepts, especially on public cloud infrastructure (AWS/Azure)
● Demonstrated expertise in applying systems patterns (e.g., Client-server, N-tier, Master/Slave, MVC) and API constructions (e.g., Swagger, OpenAPI).
● Experience in a high-availability 24/7 environment (cloud platforms are a plus). Expertise should include several of the following:
○ High-performance,up-time (99.999%) and self-recoverable systems.
○ Control, orchestration and automation platforms leveraging containers or VMs. ○ RPC frameworks (e.g., Protobuf/gRPC, Thrift, Bond)
● Experience with one or more Data Stores like (MySql, Postgres ) and NoSQL DataStores ( Mongo, Cassandra, Scylladb, Hbase, Redis, Aerospike etc.).
● Experience with Agile software development, TDD, and Continuous Integration. ● Experience in building Web/RESTFul/GraphQL services.
● Sound knowledge of *Nix, ORM(Hibernate, JPA), Spring ecosystem, Messaging platforms like Kafka/RMQ, build framework like Maven/Gradle etc.
● Very strong system design and object-oriented skills with a nifty ability to craft clean interfaces and operate at the right levels of abstraction.
● Solid coding skills with the ability to drive teams through massive refactoring exercises & improve coding standards across large code bases.
● Deep knowledge, understanding & experience of working with a large variety of multi-tier architectures. Awareness of pitfalls & use cases for a large variety of solutions. ● Exposure to complete product development cycles – from inception to production to scaling up, supporting new requirements, and re-architectures.
● Having experience building web infrastructure in cloud environments (such as AWS or Azure/GCP) is a plus. You understand and are always excited about learning new e.g.docker, Kubernetes.
● Education. M.Tech/M.Eng in Computer Science/Engineering or B.Tech/B.E in the same disciplines with equivalent years of experience would be a plus.
We'd particularly love it if:
● You’re a steward for engineering quality, reliability, scalability, availability, maintainability, flexibility habits and mindset in the organization under your purview, You know SOLID,12 factor App and Design Principles which you can apply or help the team in applying as needed. You can assure that our architectures are consistent with industry best practices. ● Version control tools like Git, SVN etc are good to have.
● Gather, understand, and prioritize requirements, research potential solutions, rapidly build prototypes, and distill and communicate what was learned, expected risks, resources & security concerns.
● Mentoring more junior engineers to instill engineering best practices and driving high standards in documentation, code reviews, design reviews, architecture discussions and strategy roadmap development.
● Actively participate in development along with team members - creating modules & systems that can then be treated as a working reflection of the best practices.
● Set the vision of the domain architecture and technology stack for technology in your organization, You understand LLD and HLD.
● Be an evangelist for technology - drive a culture of curiosity and active debate around technology in your organization.
● Experiment with new & relevant technologies and tools, and drive adoption while measuring yourself on the impact you are able to create.
Note: We just use degrees to measure the Temperature!!

Architects are responsible for driving Technology & Best Practices in Engineering. We are a rapidly growing & constantly improving organisation. We seek very high levels of ownership in all individuals, especially leadership roles like this - Ownership of your team, your product. Going beyond your role & contributing to make the organisation & business better is an expectation.
Responsibilities:
- Actively participate in development along with team members for as much as 50% of their time, creating modules & systems that can then be treated as a working reflection of the best practices.
- Participating in code reviews, design reviews, architecture discussions.
- Being responsible for Scaling, Performance & Quality for the team
- Setting up best practices to help the team achieve the above and constantly thinking about improving the technology use are your responsibilities.
- Driving the adoption of these best practices around coding, design, quality, performance in your team and influence them for the entire organisation are also expectations from you.
- Experiment with new & relevant technologies and tools, and drive adoption while measuring yourself on the impact you are able to create
- Collaborate with Product Management and Product Development leaders in developing product visions and strategies.
- Define & drive implementation of long term technology vision for your product & team
- You will be the primary owner of the architecture of your product and will also be responsible for getting it reviewed, and making sure the system is built accordingly.
- Be an evangelist for technology & represent in external forums.
- Creating architectures & designs for new solutions around existing and new problem spaces
- Drive technology & tool choices for your team & be responsible for them.
Requirements:
- Quick & Excellent Problem solving skills for complex & large scale problems
- Exposure to a wide variety of problem spaces, technologies
- Very Strong System design and OO skills with a nifty ability to craft clean interfaces and operate at the right levels of abstraction
- Solid coding skills with ability to drive teams through massive refactoring exercise & improve coding standards across large code bases
- Deep knowledge, understanding & experience of working with a large variety of multi-tier architectures.
- Awareness of pitfalls & use cases for a large variety of solutions
- Deep understanding & experience of high performance web scale & real-time response systems with experience & expertise in a variety of large scale persistent systems including large databases
- Exposure to complete product development cycles - From inception to production to scaling up, supporting new requirements, re-architectures the Principle architects should have seen it all and ideally in multiple cycles.
- Should have been part of scalable product development cycles with either large data handling or large transaction processing exposure for 5 years
- Must have worked in a small setup (either a startup or a small & reasonably independent team)
- 8+ years of overall experience
- B Tech or higher in Computer Science or equivalent required

We are looking for a Tech with a proficiency in backend technologies to design, develop a new state-of-the-art, paradigm changing product in software development. Responsibilities include evaluating technologies, developing proof-of concept prototypes, designing, and developing complete end-to-end products.
What would you be doing?
- should be able to mentor, guide, and train other engineers.
- should also be able to work with different stakeholders such as business owners, leadership, and customers.
- able to evaluate the business requirements, performance constraints, trade-offs and system limitations when developing software.
- should be well versed with new technologies and software development practices and be able to judge the trade-offs to make well thought out decisions, design choices and build the system for extensibility and robustness.
- The Django developer will be part of the core engineering team, entrusted with the complete architecture, design and development of the product.
- Work on a great product which empowers next generation entrepreneurs from its early phase
What makes you a suitable candidate?
- 1+ years of experience in designing and developing large scale, complex software applications
- Strong analytical, problem solving and design skills
- Strong knowledge of data structure, algorithms, and coding
- Proven experience in any high-level programming languages like Python, Django, DRF, Elasticsearch etc
- Knowledge of MVC architecture and hands-on experience with Spring, Spring security, Spring boot, and Hibernate framework
- Proven experience in database technologies (SQL, NoSQL, MongoDB).
- Working knowledge of developing Restful Micro services, ORM technologies etc
- Experience in container-based deployments
- Working experience in Amazon DynamoDB, Docker, AWS-Lambda
- Experience with Messaging technologies like Kakfa, RabbitMQ, redis etc
- Ability to multitask
- Good communication, organizational and leadership skills
- Perform requirement gathering, analysis and design
- Develop, create, modify and fix software applications
- Complete Unit & Integration Testing
- Deploy software
- Initial Validation after deployment
- Create documentation
- Troubleshooting and problem solving
Requirements
- Educational Background
- Experience (0+ years)
- The person should be proficient in Computer Science. Get your basics right, we will teach you everything else!
Examinations
- You will be asked questions concerning the following topics, Networking, Data Structures, Design patterns, Algorithm Analysis, and Concurrency. The questions are all language agnostic.
- You will also be asked to code a trivial Java program that meets specific requirements.
- Java, Maven, Spring-boot, REST/RESTful services, Javascript, Node.js, Angular, React,
Our Stack
- SQL, NoSql, Hibernate, Java Persistence API (JPA),
- Shell Scripting, Powershell scripting,
- JSON, XML
Benefits
- Unlimited Leave policy
- Apart from unlimited policy 9-Public Holiday over the year (Jan to Dec)
- Medical policy coverage up and above your CTC
- Unlimited scope to learn technology - no restrictions team wise/project wise
- Wonderful work culture
- Life time WFH for candidates outside Kolkata
- Opportunity to work with a product based company
- Weekly 2 days fixed off
- This is a remote position. Sath Infotech Pvt. Ltd is an established IT Security Consulting firm and is looking for developers to join its team. This role will work with team members, client stakeholders, and individuals to support and enhance Identity and Access Management and other security applications. Should be proficient in Computer Science.
- If you like working with IT professionals across a variety of Enterprise Level Environments with diverse processes and configurations to identify and solve complex problems, Sath Infotech can offer a career path to become a subject matter expert in the high demand roles of Cyber Security Analyst/Consultant, Enterprise IT Auditor or IT Project Management.

