
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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Required Skills: CI/CD Pipeline, Data Structures, Microservices, Determining overall architectural principles, frameworks and standards, Cloud expertise (AWS, GCP, or Azure), Distributed Systems
Criteria:
- Candidate must have 6+ years of backend engineering experience, with 1–2 years leading engineers or owning major systems.
- Candidate must be from a product-based organization with a startup mindset
- Must be strong in one core backend language: Node.js, Go, Java, or Python.
- Deep understanding of distributed systems, caching, high availability, and microservices architecture.
- Hands-on experience with AWS/GCP, Docker, Kubernetes, and CI/CD pipelines.
- Strong command over system design, data structures, performance tuning, and scalable architecture
- Ability to partner with Product, Data, Infrastructure, and lead end-to-end backend roadmap execution.
Description
What This Role Is All About
We’re looking for a Backend Tech Lead who’s equally obsessed with architecture decisions and clean code, someone who can zoom out to design systems and zoom in to fix that one weird memory leak. You’ll lead a small but sharp team, drive the backend roadmap, and make sure our systems stay fast, lean, and battle-tested.
What You’ll Own
● Architect backend systems that handle India-scale traffic without breaking a sweat.
● Build and evolve microservices, APIs, and internal platforms that our entire app depends on.
● Guide, mentor, and uplevel a team of backend engineers—be the go-to technical brain.
● Partner with Product, Data, and Infra to ship features that are reliable and delightful.
● Set high engineering standards—clean architecture, performance, automation, and testing.
● Lead discussions on system design, performance tuning, and infra choices.
● Keep an eye on production like a hawk: metrics, monitoring, logs, uptime.
● Identify gaps proactively and push for improvements instead of waiting for fires.
What Makes You a Great Fit
● 6+ years of backend experience; 1–2 years leading engineers or owning major systems.
● Strong in one core language (Node.js / Go / Java / Python) — pick your sword.
● Deep understanding of distributed systems, caching, high-availability, and microservices.
● Hands-on with AWS/GCP, Docker, Kubernetes, CI/CD pipelines.
● You think data structures and system design are not interviews — they’re daily tools.
● You write code that future-you won’t hate.
● Strong communication and a let’s figure this out attitude.
Bonus Points If You Have
● Built or scaled consumer apps with millions of DAUs.
● Experimented with event-driven architecture, streaming systems, or real-time pipelines.
● Love startups and don’t mind wearing multiple hats.
● Experience on logging/monitoring tools like Grafana, Prometheus, ELK, OpenTelemetry.
Why company Might Be Your Best Move
● Work on products used by real people every single day.
● Ownership from day one—your decisions will shape our core architecture.
● No unnecessary hierarchy; direct access to founders and senior leadership.
● A team that cares about quality, speed, and impact in equal measure.
● Build for Bharat — complex constraints, huge scale, real impact.
About Us
Euphoric Thought Technologies is a fast-growing technology company focused on delivering scalable, high-performance digital solutions. We are looking for a skilled Backend Developer to join our dynamic team and contribute to building robust and efficient systems.
Key Responsibilities
Design, develop, and maintain scalable backend services and APIs
Write clean, maintainable, and efficient code
Collaborate with frontend developers, DevOps, and product teams
Optimize applications for maximum speed and scalability
Troubleshoot, debug, and upgrade existing systems
Implement security and data protection best practices
Participate in code reviews and technical discussions
Required Skills & Qualifications
4–5 years of hands-on experience in backend development
Strong proficiency in at least one backend language such as Java and Core Java
Experience with frameworks like Spring Boot, Django, Express.js, etc.
Good understanding of RESTful APIs and Microservices architecture
Strong experience with databases (MySQL, PostgreSQL, MongoDB)
Familiarity with version control systems (Git)
Experience with cloud platforms (AWS/Azure/GCP) is a plus
Knowledge of Docker, Kubernetes, CI/CD pipelines is an added advantage
Strong problem-solving and analytical skills
Requirements
- Senior SD4 engineer/Principal Engineer/ Architect who has led or been part of platform teams inside a large/mid tech company
- Deep expertise working with any of the programming languages to write maintainable, scalable, unit-tested code.Python experience is a bonus - but not required
- Good understanding of REST APIs and the web in general and ability to build a feature from scratch & drive it to completion
- Experience with Kubernetes, Prometheus, Grafana, ELK stack, Load Balancing
- Experience in building a platform team on AWS for Product based companies/start-ups
What You’ll Do
- Build the core technology platform, including Automated provisioning of infrastructure, deployment, and monitoring of services
- Build a central services directory within an organization that shows the cost and health of all services and makes the management of microservices extremely easy
- This involves working with core infrastructure and understanding them in great detail - like Kubernetes, ServiceMesh, Service security
- Mentor/coach engineers to facilitate their development and provide technical leadership
Responsibilities:
1. Develop and maintain mobile applications using React Native.
2. Collaborate with cross-functional teams to define, design, and ship new features.
3. Write clean, maintainable, and efficient code.
4. Ensure the performance, quality, and responsiveness of applications.
5. Troubleshoot and debug issues, and optimize performance for a seamless user experience.
6. Stay updated on emerging trends and technologies in mobile development.
Requirements:
1. Proven experience as a React Native Developer.
2. Strong proficiency in JavaScript and React.
3. Familiarity with native build tools, like Xcode, Android Studio.
4. Experience with third-party libraries and APIs.
5. Understanding of state management (e.g., Redux) in mobile applications.
6. Solid understanding of the full mobile development life cycle.
7. Excellent problem-solving and communication skills.
8. Ability to work independently and collaboratively in a team.
Minimum of 4+ years of experience in Java development
- Experience delivering Services (REST, SOAP) and Web applications in Micro services architecture
- Experience developing and deploying Java solutions to cloud
- Experience in Spring Boot and components of Spring framework
- Experience in a JavaScript framework such as Angular or React
- Experience in TDD using Junit or similar frameworks
· Experience in Design Patterns and service oriented architectural principles, Data structures and Algorithms.
· Individual should be an active participant in the product design and code reviews for self and team and can competently review any aspect of their product or major sub-system.
· Experience in SQL, Unix skills.
· Good communication Skill
- Work with product owners, architects, developers, testers, and other stakeholders in the client's organization and in the company to build and maintain software solutions
- Get specifications/wireframes/ mock-ups and translate them into scalable, high-performance, robust web apps!
- Responsible to write and maintain clean, well-written code, as per the best practices.
- Very comfortable with daily stand-up with clients, update daily work progress via Project Management systems, voice/video calls, online collaboration using screen-sharing tools.
- Exposure/experience in agile development practices
Desired Qualification, Skills, and Experience
- Education: B.E. / B.Tech.
Mandatory Skills:
- Expert level skills in OOPS concepts
- Excellent in Ruby, metaprogramming.
- Excellent knowledge of Rails 4.x+
- Experience in using Rails Engine.
- Full-stack web development expertise (HTML, Javascript, CSS/Less, React, Redux)
- Good experience with active accounts on Git, Github/Bitbucket, or similar SCM tools.
- Excellent debugging and troubleshooting skills [Client side, Server side, Database]
- Knowledge and skills in static code analysis and performance management tools [Client side, Server side, Database]
- Databases: Expert level skills in one or more of MySQL, PostgreSQL
- Exposure to Release, Build Management, Deployment steps, and methodologies.
Nice to have Skills:
- MongoDB, Redis, Memcached, RSpec, Enzyme, Jest
- Experience:2-4 year
Immediate joinees would be preferred
JAVA spring boot, Micro services
Node JS
REST API consume and produce
Any DB SQL or NoSQL
Roles & Responsibilities:
- 4+ years of experience as both a hands-on architect and a software engineer
- Leadership experience in creating, deploying, and iterating excellent software
- Extensive problem-solving skills
- Good written and vocal communication skills (in English)
- Proficiency in the following skills and technologies is mandatory: Core PHP, CodeIgniter, WordPress(CMS), MVC Framework, MYSQL(Database), OOP, JavaScript, jQuery, HTML, CSS, Laravel 5, Opencart, AngularJS, GIT, SVN
- Capture high level requirements quickly from client or the sales team
- Be able to estimate with limited information by guesstimating based on some logical reasoning and assumptions
- Be able to clearly state the assumptions for the estimate
- Has good command over presentations and be able to quickly create a pre-sales presentation for the sales team
- Strong understanding of technology
- Ability to research out potential products / technologies for the proposed solution









