
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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Similar jobs
- Develop, enhance, and maintain Java-based applications using Spring Boot and related frameworks.
- Design, implement, and optimize Microservices with RESTful APIs.
- Build and manage Spring Batch jobs, including scheduling, chunk processing, partitioning, and error handling.
- Apply object-oriented design (OOD) and GoF design patterns (Factory, Singleton, Strategy, Observer, etc.).
- Write clean, maintainable, and scalable code following best coding standards.
- Integrate applications with databases (SQL/NoSQL) and messaging systems (Kafka/RabbitMQ).
- Participate in code reviews, technical discussions, and architectural decisions.
- Troubleshoot production issues and ensure application performance, scalability, and reliability.
- Work in an Agile/Scrum environment and collaborate with cross-functional teams.
Technical Skills Required
- ** Core Java 8+**, OOP, Collections, Multithreading
- ** Spring Boot**, Spring MVC, Spring Data JPA
- ** Spring Batch** (Job/Step configuration, Tasklets, Readers/Writers, partitioning)
- ** Microservices** (REST, API Gateway, service discovery, resilience patterns)
- ** Design Patterns** (Factory, Singleton, Adapter, Strategy, Builder, Observer, etc.)
- ** Databases:** MySQL/PostgreSQL/Oracle, MongoDB (optional)
- ** Messaging:** Kafka / RabbitMQ (preferred)
- ** Build tools:** Maven/Gradle
- ** CI/CD:** Jenkins, GitLab CI, or similar
- ** Cloud:** AWS / Azure / GCP (optional but preferred)
- ** Testing:** JUnit, Mockito
JOB DESCRIPTION:
Location: Pune, Mumbai
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Strong Engineering Manager / Lead Profiles
Mandatory (Experience 1) - Must have 8+ years of overall Software Engineering/Development experience
Mandatory (Experience 2) - Must have 3+ years of experience as Engineering Manager / Team Lead role, with ownership of technical direction, delivery, and people management
Mandatory (Experience 3) - Must have hands-on Backend development experience using Python or Java, with frameworks such as FastAPI / Django / Spring / Express (Node.js)
Mandatory (Experience 4) - Must have Frontend development exposure using ReactJS, JavaScript, HTML, CSS
Mandatory (Experience 5) - Must have experience designing and building APIs, services, and integrations, including system design, PR reviews, and architectural decision-making.
Mandatory (Experience 6) - Must have experience leading engineers end-to-end – mentoring, code reviews, execution planning, and improving team productivity/quality
Mandatory (Company) - Must be from Product Companies / Startups (early to growth stage), B2B SaaS + Fintech industry is highly preferred
Mandatory (Note) - This role will be 80% team management and 20% IC (hands on coding required)
🔹 Job Title: Full Stack Java Developer
🔹 Experience: 4 to 6 Years
🔹 Location: Gurugram (Hybrid)
📝 Job Description:
Deqode is hiring a skilled Full Stack Java Developer to join our team of technology experts building scalable, enterprise-grade systems. We’re looking for passionate developers who thrive in fast-paced environments and love solving real-world challenges.
Key Responsibilities:
- Design, develop, and deploy scalable Java-based microservices using Spring Boot.
- Develop front-end components using any modern JavaScript framework.
- Build robust APIs and integrate third-party services.
- Work with Quarkus to enhance Java runtime performance (preferred).
- Implement containerized services using Kubernetes and manage deployments.
- Ensure clean, testable, and maintainable code in an Agile environment.
- Collaborate with cross-functional teams to define and deliver high-quality products.
Must-Have Skills:
- 4–6 years of hands-on experience in Java and Spring Boot
- Proven experience in building and deploying Microservices
- Experience with Kubernetes and Kafka
- Proficiency in any modern frontend framework (React, Angular, etc.)
- Exposure to Quarkus is a strong plus
- Strong understanding of API design and RESTful services
- Excellent problem-solving and communication skills
Requirements:
1.3+ years of strong programming experience with .Net Framework and .Net Core based software applications. (.NET,.NET Core, C#, ASP.Net, JavaScript framworks, Web API, MS SQL Server, Cosmos DB, Docker, Azure Cloud)
2. Strong knowledge of Microservices based Architecture, Design Patterns and Principles.(Optional) / Hands on experience on React Js /Redux (Optional)
3. Prior experience in handling application with larger volumes of data .
4. 3+ years of experience of designing high-performance enterprise software application.
5. Works with application development team to solve technical challenges with industry best practices.
6. Addresses and resolves complex technical issues with internal/external customers.
7. Design software systems with various Microsoft technologies and ensure compliance to all architecture requirements.
8. Review infrastructure for any issues and recommend solutions.
9. Very important to be good communicator and updates management team with the weekly/monthly status.
10. Analyzes enterprise system performance. Develops and implements system performance improvements.
11. Participates in development activities including code reviews, as well as coding and testing of new enhancements.
Roles and Responsibilities:
- Design and implementation of low-latency, high-availability, and performant APIs
- Writing reusable, testable, and efficient code to build features and improvements to the Plum product in a secure, well-tested, and performant way
- Collaborate with Product Management and other stakeholders within Engineering (Frontend, UX, etc.) to maintain a high bar for quality in a fast-paced, iterative environment
- Advocate for improvements to product quality, security, and performance
Qualifications:
- 5+ years of experience in shipping backend applications in NodeJs, with knowledge of Express.
- Experience with NextJS and Typescript is a plus. Able to integrate multiple data sources and databases into one system.
- Understanding of fundamental design principles behind a scalable API infrastructure.
- Shows the drive for owning a project from concept to production, including proposal, discussion, and execution. Self-motivated and self-managing, with strong organizational Skills.
- Having experience maintaining a production grade open source project is a plus.
Responsibilities :
- Design and develop scalable, high performance, and reliable API driven services/applications in Java language that operate whole day.
- Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
- Interact with both business, financial research, and technical stakeholders to deliver high quality products and services that meets/exceeds business, customer, and technical requirements.
- Own products and code from cradle to grave including production quality/performance monitoring.
Required Skills :
- Experience building and running high performance enterprise applications developed in Java language.
- Hands on experience developing Java web applications built with modern standards-based APIs including Java based REST APIs and implementations.
- Experience in Java language APIs, Spring technologies, Hibernate, JDBC, RDBMS and NoSQL based data persistence.
- Experience developing solutions on AWS Cloud leveraging AWS Lambda, S3, DynamoDB, Cloud Formation, and other related AWS technologies.
- Solid understanding of Domain Modeling with Relational and Non-Relational Databases.
- Excellent debugging and problem-solving skills, including ability to diagnose and fix performance and scalability issues.
- Experience working in an agile methodology-based development environment.
- Excellent written and verbal communication skills.
- BS/B.Tech/M.Tech in Computer Science or a related field.
Share your resumes if this opportunity suits you.
Your Opportunity
- Own and drive business features into tech requirements
- Design & develop large scale real time server side systems
- Quickly create quality prototypes
- Staying updated on emerging technologies
- Ensuring that all deliverables adhere to our world class standards
- Promote coding best practices
- Mentor and develop junior developers in the team
Required Experience
- 4+ years of relevant experience as described below
- Excellent grasp of Core Java, Multi Threading and OO design patterns
- Experience with Scala, functional, reactive programming and Akka/Play is a plus
- Excellent understanding of data structures and algorithms
- Solid grasp of large scale distributed real time systems
- Prior experience on building a scalable and resilient micro service
- Solid understanding of relational databases, NoSQL databases and Caching systems
- Good understanding of Big Data technologies such as Spark, Hadoop is a plus
- Experience on one of AWS, Azure or GCP
Who you are
- You have excellent and effective communication and collaborative skills
- You love problem solving
- You stay up to date with the latest technologies and then apply them in real life
- You love paying attention to detail
- You thrive in meeting tight deadlines and prioritising workloads
- Ability to collaborate across multiple functions
Education
Bachelor’s degree in Engineering or equivalent experience within the field
Role: Javascript Developer [Backend Developer + Frontend]
Opening for MERN Stack Developer to lead scalable Development with competencies in:
- Expert of NodeJS, Express & MongoDB, REST Apis
- Experience in Docker
- Exposure to React, Redis, will be preferred.
Industry: IT-Software / Software Services (SaaS)
Functional Area: Internet & Cloud Technologies
Role Category: Programming & Deployment
Role: Software Developer
Employment Type: Permanent Job, Full Time
Desired Experience: 2-4 years
Desired Qualifications: B.E. / B.Tech / M.Tech / MCA
Key-Skills:
Node.js | Express | REST Api | Javascript | Redux-Saga | MongoDB | Web security TLS/SSL | Web Sockets | Promises & Call-backs | Database & Data structures | Redis | Elasticseach | React.Js
Key Deliverables:
- New feature design and implementation, Bug fixing, testing and performance tuning.
- Work on the API and Engines.
- Code deployment on cloud & maintenance of the same.
- Take complete ownership of a product/feature from setup to deployment.
- Time-bound feature delivery & updating.
- Cost-saving using efficient & effective technologies
Role and Responsibilities:
- Work on back-end (+ frontend integration) development of core scripts using NodeJS / MongoDB /Express /Redux, and Redis.
- Manage Key-value based databases like Redis.
- Active participation in the development of a sophisticated platform as one of the leading developers.
- Document code consistently throughout the development process by listing a description of the program, special instructions, and any changes made in database tables on procedural, modular and database level.
- Respond promptly and professionally to bug reports.
- Knowledge of bluebird.js (Promises), Async, etc will be of advantage.
- Coding and programming using Object-Oriented Programming, Data Structure and Algorithms, architecture/ design and build RESTful API.
- Passionate about building products and features and build the product from scratch with thrust on Web security, TLS/SSL, web sockets, etc
- Knows one or more of Wireframes/ Prototyping/ Functional Documentation of business.











