
Java Backend Engineer - Fintech Rocketship Pilot
Distributed systems, scalability, reliability, robustness, security, quality, building responsive real time systems - do these terms get your adrenaline high? Come be a part of a high growth, fast paced engineering team building for India’s new generation.
We have an open culture, you take responsibility and ownership of what you do. No bureaucracy. No bullsh*t.
If you are up for big engineering challenges, personal and professional growth, then let’s join forces!
You’ll fit right in if you have - 2-3 years of experience building, running and maintaining production services Strong with Java and JVM based services along with PostgreSQL Comfortable working with multiple cloud providers: mainly GCP and AWS Comfortable with CI and CD tools and best practices Done TDD and values TDD
Good to have –
Engineering aptitude - Owns small features, starting from technical design through completion. Appreciates and participates in technical discussions, and values guidance and feedback. Does not need mentoring on a daily basis; makes steady progress by themselves, and knows when to ask for help to get unblocked. Comfortable with referencing technical specifications, API references, source code, and man pages to understand concepts or solve issues.
Design process - Understands the role and importance of design, can write good backend specifications Can communicate API specifications and design goals to the end consumers API
Code reviews - Understands the value of peer-reviewed code; learns how to be unbiased and provide effective feedback. Asks senior engineers for help when needed (e.g.: architecture decisions, refactoring)

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Job Title : Senior Software Engineer (Python, Golang, Node.js, Elixir, SQL)
Experience : 5+ Years
Location : Mumbai (Work From Office)
Employment Type : Full Time Opportunity
Job Summary :
We are looking for a Senior Software Engineer with strong backend development experience to build scalable, cloud-native applications and distributed systems.
The ideal candidate should have experience in product-based environments, designing microservices, REST APIs, and customer-facing production applications while collaborating with cross-functional teams.
Mandatory Skills :
Backend Development, Python, Golang, Node.js, Elixir, SQL, Cloud-Native Architecture, REST APIs, Microservices, Distributed Systems, Cloud Platforms, Relational & NoSQL Databases, Platform Engineering, CI/CD, Production Support, System Design
Key Responsibilities :
- Design and develop scalable backend services, REST APIs, and microservices.
- Build and enhance cloud-native, high-performance applications.
- Participate in architecture and system design discussions.
- Collaborate with Product, DevOps, Security, and Data Engineering teams.
- Troubleshoot production issues and optimize application performance.
- Mentor team members and contribute to engineering best practices.
Required Skills :
- 5+ years of software development experience in product-based organizations.
- Strong backend development using Python, Golang, Node.js, Elixir, or similar technologies.
- Experience with REST APIs, Microservices, SQL, and Distributed Systems.
- Strong understanding of cloud platforms and cloud-native architecture.
- Hands-on experience with relational and NoSQL databases.
- Familiarity with CI/CD, monitoring, and DevOps practices.
Preferred Skills :
- Experience building highly scalable distributed systems.
- Strong debugging, troubleshooting, and performance optimization skills.
- Familiarity with DevOps practices, CI/CD pipelines, monitoring, logging, and observability tools.
- Excellent communication, collaboration, and problem-solving abilities.
- Experience mentoring engineers and leading technical initiatives.
👉 Job Title: Senior Backend Developer
🌟 Experience: 5-7 Years
💡Location: Bangalore
👉 Notice Period :- Immediate Joiners
💡 Work Mode - 5 Days work from Office
( Candidate Serving notice period are preffered)
Role Summary
We are seeking a Senior Backend Developer with strong expertise in Python and FastAPI to build scalable, high-performance backend systems integrated with LLM technologies on Azure. The role involves designing distributed systems, optimizing data pipelines, and ensuring secure, enterprise-grade applications.
Key Responsibilities
- Develop backend services using Python & FastAPI (async, middleware)
- Build high-concurrency, scalable systems and microservices
- Work with Azure services and event-driven architectures
- Optimize MongoDB & Redis for performance
- Integrate LLM APIs (OpenAI, Gemini, Claude)
- Implement security (JWT, encryption, API management)
Mandatory Skills (Top 3)
- Strong Python backend development with FastAPI
- Hands-on experience with Microsoft Azure cloud
- Experience in building scalable distributed/microservices systems
Good to Have
- Docker, Kubernetes, CI/CD
- LLM frameworks (LangChain, vector DBs)
- Monitoring tools and real-time data processing

Roles & Responsibilities :
- 1-2 years of hands-on experience in backend development with Java & Spring Boot.
- Build scalable and modular microservices for business-critical applications.
- Implement RESTful APIs and ensure high performance and responsiveness.
- Proficient with SQL databases (MySQL etc) Troubleshoot production issues and improve system reliability and scalability.
Signalling, interlocking system
• Participate in Requirement Analysis and Design activities
• Develop code, unit testing, integration testing
• Perform module integration and integration testing
• Prepare and review Test Reports
• Actively participate in technical meetings and share ideas clearly
• Manage a team of engineers and provide leadership with clear communication
• Good at documentation
• And any other project related activity assigned
We are looking for strong developers with below skills,
- Java
- Springboot
- REST API
- Microservices
Excellent communication skill.
Notice : Immediate - 30 days
Job Title : Sr Java Developer
Job Description
We are seeking a well experienced full stack Java developer for our product. As a member of the software engineering division, you will assist in defining and developing software for tasks associated with the developing, debugging or designing of software applications or operating systems. Provide technical leadership to other software developers. Specify, design and implement modest changes to existing software architecture to meet changing needs.
Roles and responsibilities?
- Design, develop and implement software programming applications.
- Build highly scalable product.
- Participate in gathering business requirements and assessing existing architectures and resources.
- Work with application development team in delivering the project and deliverable within time and with good quality.
- Perform unit testing, oversee quality assurance of applications through system testing.
- Establishes processes for performance and conducts code review.
- Manage and mentor junior members of the team on good coding practice
Skills and experiences would I bring into this role?
- E/ B.Tech / MCA in computer science or a related field
- 4+ Years of Java/J2EE work experience.
- Object-Oriented design, patterns, algorithms, data structures
- Well knowledge about Spring Hibernate framework.
- Exposure to React JS / Angular JS.
- Experience with SQL/No-SQL database technologies – MySQL, Mongo dB, Cassandra, Redis, PostgreSQL, etc.
- Experience in Web services (REST or SOAP)
- End to end web development experience is highly preferred
- Good understanding of unit testing methodologies.
- Good analytical and communication skills
- Startup work culture mindset.
SleepyCat is India's First Mattress-In-A-Box brand! We deliver luxury mattresses, at a fraction of the usual cost, straight from our factory to your doorstep in an easy-to-carry package.
In sleepycat we constantly thrive to make our products and customer experience better using technology.
About Role
We are currently looking out for a Ruby on Rails developer who is motivated to learn and work on challenging projects. You should have a product mindset with great technical skills. In sleepycat we promote new and fresh ideas which can directly or indirectly help customer experience and sales. Sleepycat provides to you platform to bring your thoughts into action and implement them.
Technical skills required: Ruby on Rails
You should be willing to work as a full stack going forward.
Personal and Domain Growth Initiatives
1. In SleepyCat we promote career growth. Once you are settled and have completely owned the system you are hired for, you have the freedom to pick some other technologies inside SC. You will be given time to learn and contribute. Right now we have Web Development (PHP/JS), ReactJS and Ruby on Rails. So you have the freedom to utilize 30% of your time on any of these languages if you wish to and remaining 70% on your primary domain.
2. We also promote self-growth. You can utilize 10% of your time to learn any skill you want and we will help you with that. It is not restricted to the tech domain, could be anything from marketing to sales to personality development.
Interview Process Details
Technical Round 1: Development Knowledge Round
We will test your skills in 3 domains
- understanding an existing written code and ability to make changes
- coding a logical question to test basic coding skills
- ability to think of test cases to write a full proof code
Technical Round 2: Coding Round
45 minutes coding round where you will be required to code live sharing your screen. On the spot problem will be given.
Additional details
Website: https://sleepycat.in/
Work Culture: 6 days(All Saturday half day)
Office Location: 91Springboard, Kalina, Mumbai
Employee Strength: 40+ Employees
Founded: 2017
Funding: $1.6 Million
Read about Sleepycat and funding on Crunchbase: https://www.crunchbase.com/organization/sleepycat
Learn what employees say about SleepyCat on Glassdoor: https://tinyurl.com/r9oqfkl
Checkout what people say about SleepyCat products on Google: https://tinyurl.com/rco3nqr










