
Senior Java Developer / Architect (Consultant - Part time / Full time)
at HeyMath

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.

About HeyMath
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We are looking for a Senior Java Developer with 6+ years of experience to join our team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and Cloud Technologies. You will play a key role in designing, developing, and optimizing scalable applications while mentoring junior developers and ensuring best coding practices.
Key Responsibilities:
- Design, develop, and maintain Java-based enterprise applications.
- Implement and optimize Microservices Architecture using Spring Boot.
- Develop, test, and deploy RESTful APIs and Web Services.
- Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Ensure application scalability, security, and performance.
- Collaborate with DevOps teams for CI/CD pipeline integration.
- Work with Cloud platforms (AWS, Azure, or GCP) for cloud-native development.
- Implement best practices for coding, testing, and deployment.
- Lead code reviews, mentor junior developers, and contribute to architectural decisions.
- Troubleshoot production issues and provide effective solutions.
Required Skills & Experience:
- 6+ years of hands-on experience in Java development.
- Strong expertise in Spring Boot, Spring MVC, and Spring Security.
- Experience with Microservices Architecture and containerization tools like Docker/Kubernetes.
- Proficiency in SQL & NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
- Hands-on experience with RESTful APIs, messaging systems (Kafka, RabbitMQ), and authentication mechanisms (OAuth, JWT, SAML).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
- Experience in Agile/Scrum development methodologies.
- Strong knowledge of multi-threading, concurrency, and design patterns.
Overview
adesso India specialises in optimization of core business processes for organizations. Our focus is on providing state-of-the-art solutions that streamline operations and elevate productivity to new heights.
Comprised of a team of industry experts and experienced technology professionals, we ensure that our software development and implementations are reliable, robust, and seamlessly integrated with the latest technologies. By leveraging our extensive knowledge and skills, we empower businesses to achieve their objectives efficiently and effectively.
Job Description
We are looking for a skilled and experienced Senior backend Developer specializing in FSE tools to join our team. In this role, you will be responsible for designing and implementing user interfaces that enhance our customer experience. Your contributions will play a critical role in driving the success of our projects by creating dynamic, intuitive, and responsive web applications.
Responsibilities:
Develop, maintain, and enhance web applications using front end tools to create seamless, user-friendly experiences.
Collaborate with cross-functional teams, including UX/UI designers, product managers, and backend developers, to deliver high-quality products.
Write clean, maintainable, and scalable code while adhering to best practices in frontend development.
Perform code reviews, optimize application performance, and debug issues for a smooth user experience.
Stay updated on the latest FSE features and web development trends to bring innovative ideas to the team.
Skills & Requirements
Java, Spring Framework / Spring Boot, APIs (e.g. REST, RESTful API), Unit testing (e.g JUnit, Mockito ), Build Tools (e.g. maven, gradle), CI/CD (e.g. Gitlab, GitHub, Jenkins, Bamboo, Azure DevOps), DEV Tools (e.g. Git, Atlassian Jira, Atlassian Confluence), Quality Tools (e.g. SonarQube, SonarCloud, Findbugs, PMD, OWASP checker, …), Spring Ecosystem (e.g. Spring Data, Spring REST, Spring MVC, Spring Batch, …), Java Commons (e.g. Apache Commons), Other APIs (e.g. SOAP, GraphQL, WebSocket, Server-Sent-Events / SSE, gRPC), API Documentation (e.g. OpenAPI, Swagger, …), Integration testing / E2E testing (e.g. Selenium, Testcontainers, Cucumber), Containerisation (e.g. Docker, Kubernetes / K18n), Cloud experience (e.g. AWS, Azure, GCP).Java Enterprise / Java EE (e.g. EJB, CDI, JPA, JSF, JAX-RS, JAX-WS, JMS), Other Java Frameworks (e.g. Quarkus), Messaging (e.g. Kafka, RabbitMQ, ActiveMQ, …), NoSQL DB (e.g. MongoDB, Neo4j), Performance testing (e.g. Gatling), Single-Sign-On (e.g. OAuth2, Open ID Connect, JWT, SAML), Monitoring, Logging & Tracing in the frontend application, Experience with Linux operating systems, Shell-Scripting.
Job Title -Senior Java Developers
Job Description - Backend Engineer - Lead (Java)
Mumbai, India | Engineering Team | Full-time
Are you passionate enough to be a crucial part of a highly analytical and scalable user engagement platform?
Are you ready learn new technologies and willing to step out of your comfort zone to explore and learn new skills?
If so, this is an opportunity for you to join a high-functioning team and make your mark on our organisation!
The Impact you will create:
- Build campaign generation services which can send app notifications at a speed of 10 million a minute
- Dashboards to show Real time key performance indicators to clients
- Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds
- Building highly available & horizontally scalable platform services for ever growing data
- Use cloud based services like AWS Lambda for blazing fast throughput & auto scalability
- Work on complex analytics on terabytes of data like building Cohorts, Funnels, User path analysis, Recency Frequency & Monetary analysis at blazing speed
- You will build backend services and APIs to create scalable engineering systems.
- As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development and seamless collaboration with all functions.
- You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.
- Collaborating various highly-functional teams in the company to meet deliverables throughout the software development lifecycle.
- Identify and improvise areas of improvement through data insights and research.
What we look for?
- 5-9 years of experience in backend development and must have worked on Java/shell/Perl/python scripting.
- Solid understanding of engineering best practices, continuous integration, and incremental delivery.
- Strong analytical skills, debugging and troubleshooting skills, product line analysis.
- Follower of agile methodology (Sprint planning, working on JIRA, retrospective etc).
- Proficiency in usage of tools like Docker, Maven, Jenkins and knowledge on frameworks in Java like spring, spring boot, hibernate, JPA.
- Ability to design application modules using various concepts like object oriented, multi-threading, synchronization, caching, fault tolerance, sockets, various IPCs, database interfaces etc.
- Hands on experience on Redis, MySQL and streaming technologies like Kafka producer consumers and NoSQL databases like mongo dB/Cassandra.
- Knowledge about versioning like Git and deployment processes like CICD.
What’s in it for you?
- Immense growth, continuous learning and deliver the best to the top-notch brands
- Work with some of the most innovative brains
- Opportunity to explore your entrepreneurial mind-set
- Open culture where your creative bug gets activated.
If this sounds like a company you would like to be a part of, and a role you would thrive in, please don’t hold back from applying! We need your unique perspective for our continued innovation and success!
So let’s converse! Our inquisitive nature is all keen to know more about you.
Skills
JAVA, MONGO, Redis, Cassandra, Kafka, rabbitMQ
At Tekion, we're building the only cloud-native platform that is transforming the automotive retail industry, leapfrogging it into the future and providing unparalleled customer experience. We're creating seamlessly integrated, elegant, and intuitive solutions built with cutting edge technology and powered by Big Data, Machine Learning (ML)/ AI and Internet of Things (Connected vehicle to connected devices). We’re harnessing passion, entrepreneurial spirit, deep industry expertise and the latest technologies to create something very special. We're inventing new technology along the way to overcome barriers and solve big problems, all while having a blast doing it!
Key Responsibilities
-
Design and build solutions for complex business workflows
-
Understanding the user persona and deliver a slick experience
-
Take end to end ownership of components and be responsible for the subsystems that you work on from design, code, testing, integration, deployment, enhancements, etc.
-
Write high-quality code and taking responsibility for their task
-
Solve performance bottlenecks
-
Mentor junior engineers
-
Communicate and collaborate with management, product, QA, UI/UX teams
-
Deliver with quality, on-time in a fast-paced start-up environment
Minimum Qualification
-
Bachelor/Master's in computer science or relevant fields
-
0.6 to 2 years of relevant experience
-
Strong sense of ownership
-
Excellent Java and object-oriented development skills
-
Experience in building and scaling microservices
-
Strong problem-solving skills, technical troubleshooting and diagnosing
-
Expected to be a role model for young engineers, have a strong sense of code quality and enforce code quality within the team
-
Strong knowledge in RDBMS and NoSql technologies
-
Experience in developing backends for enterprise systems like eCommerce / manufacturing / supply chain etc
-
Excellent understanding of Debugging performance and optimization techniques
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Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
-
Experience in developing any large scale Experience in cloud technologies
-
Demonstrated ability to deliver in a fast-paced environment
Primary duties and responsibilities include:
· Candidate should be able to work independently with client and should possess excellent written and verbal communication skills.
· Work closely with experienced integration, frontend, or backend development teams
· Contribute to estimation and scoping of projects
· Work on presales environment for checking feasibilities for customer requirement.
Required Experience
· Bachelor’s degree in Computer Science, or equivalent work experience
· 8 to 10 years of programming experience—preferably with Java 8+, and other tool support
· 5 years of Java # 6 experience
· Should have experience in executing project independently.
· Demonstrated ability of Design Patterns and to write efficient, reusable rest services and libraries
· Experience with agile software development methodologies and software development best practices, pair programming and CI/CD
· Excellent written and verbal communication skills
· Excellent analytical skills for solution building of customer requirements.
· Good knowledge of datastores (RDBMS, Oracle, SQL)
· Must have in depth understanding of the L1, L2, L3 support environment.
· Experience in Java, JavaScript, CSS, HTML, XML and other web technologies
· Strong understanding of network OS and system configurations.
· Familiarization with OSLC and REST APIs
· Ability to successfully lead offshore development teams and work in global delivery model- US, India, Germany
· Knowledge of LDAP
· Experience with Microsoft Office products- Word, Excel, Powerpoint
· Experience with other Requirements Management Tools (Polarion, PTC Integrity) will be a value add
Preferred Experience
· Understanding of high-availability, fault-tolerant, scalable, distributed systems
· Working knowledge of iText 7, OpenFeign, RabbitMQ/JMS, Mockito and jUnit/nUnit, Spring Cloud
Salary is not constriant. Candidate should have interest to new things.
¡ Solid Design and Architecture skills. Experience in the designing, development, and deployment of large-scale enterprise applications with multiple tiers. |
¡ Ensure agile test-driven development for robustness, usability, reliability, security and performance. |
¡ Expert in Core JAVA and Spring Boot and other Spring libraries, Eureka, Hystrix etc. |
¡ Experience creating architecture or developing web services to integrate applications with databases such as Oracle, MySQL, MongoDB, or Cassandra |
¡ Solid understanding of OOPS, algorithms and data structures. |
¡ Experience on Kafka / Scala / Storm / Elastic Search and Web Services like RESTful / SOAP. |
¡ Extensive experience with version control systems (Git is preferred) and issue tracking systems (JIRA is preferred) |
Coding in Java8, Spring, Microservices, WebFlux/Reactive Programing, Rest services, Kafka, PCF, Azure, Spring Cloud Config and NoSQL technologies.
Solve technical problems using cutting-edge technologies and best practices.
Ensure code meets the required development standards and is optimized for performance.
Unit testing for each line of new code introduced (JUnit/Mockito)
Peer code review process using GIT pull requests and Crucible (for SVN)
Propose multiple solutions to a problem, show how one option is better than another.
Ensure all aspects of technical design are correctly incorporated.
Contribute in research and implementing POCs as required.
Collaborating with onsite team in scrum ceremonies.
Who you are:
Hands on experience on Java/J2EE programming, especially on Java 8 features
Experience using latest frameworks like Spring, Spring Boot, Spring Rest, Spring Cloud Config and Webflux.
Experience in Microservices architecture & development
Experience with Test Driven Development
Experience with SQL on any of the RDBMS Oracle, PostgreSQL, My SQL
Exposure to NoSQL DB is added advantage, preferred MongoDb / Cassandra
Experience with any of the ORM frameworks Hibernate/iBatis, JDBC, JPA
Exposure to JMS Kafka, IBM MQ or Active MQ is good to have
Experience with JUNIT and any of the mocking frameworks Mockito, EasyMock, JMock
with hands on any one of the cloud platforms like PCF, Azure
Use of code repository tools like SVN, GIT
Exposure to any of the build and deployment tools like Gradle, Maven, Ant
Experience in CI/CD pipeline such as JENKINS
Experience using different design patterns, especially GoF, J2EE and Integration design patterns
Exposure to performance testing using JMeter is good to have
Ensuring the code meets the required development standards and is optimized for performance
Experience managing teams and deliveries
Providing technical design or approach for a business problem
Leading the team towards the right solution with expected quality and timelines
Experience with Agile practices
With good collaboration skills to coordinate with US based onsite team and client team.
Good team player and coordination skills
- Exp- 3+ yrs
- Must be very good in Java- 2.5+ yrs
- At least 1 yr of working experience in any one DB of Neo4j, Cassandra, Elastic Search
- Should have good devops working knowledge - Knowledge of AWS, Ansibleetc is a necessity
- Experience in TDD/BDD is required
- Minimum 1 yr working experience in Samza& Kafka.
- Knowledge of Azure is added advantage
- Understanding of AKKA and Play framework


