Full Stack Developer

Job Title: Senior Java Developer

Location: Mumbai (On-site)

Notice Period: Immediate Joiners Preferred / 15 Days or Less

Job Description:

We are seeking a highly skilled and experienced Senior Java Developer with 5+ years of hands-on experience in Java-based application development. The ideal candidate should be adept at designing scalable systems, optimizing performance, and leading development efforts in collaboration with cross-functional teams. This is a full-time, on-site position for candidates currently residing in Mumbai and available to join within 15 days.

Key Responsibilities:

• Lead end-to-end design, development, and deployment of Java applications
• Translate functional and technical requirements into detailed design
• Build scalable, secure, and high-performing applications
• Develop and consume RESTful APIs and ensure seamless integration
• Implement microservices architecture and containerized deployments
• Write clean, efficient, and well-documented code
• Perform code reviews, debugging, and performance tuning
• Collaborate with DevOps for CI/CD and production deployments
• Guide junior developers and conduct knowledge-sharing sessions
• Stay updated on new technologies and industry trends

Required Technical Skills:

• Languages & Frameworks:
• Core Java, J2EE
• Spring Framework (Spring Boot, Spring MVC, Spring Security)
• Hibernate / JPA
• Apache Maven / Gradle
• API Development & Integration:
• RESTful APIs, JSON, Swagger/OpenAPI
• Databases:
• MySQL, PostgreSQL, Oracle
• MongoDB, Redis (preferred)
• Frontend Exposure (Optional but Preferred):
• HTML, CSS, JavaScript, jQuery
• Angular / React
• Tools & Platforms:
• Git, GitHub / GitLab / Bitbucket
• Jenkins, Docker, Kubernetes (basic knowledge)
• SonarQube, Log4j, ELK stack (preferred)
• Cloud & DevOps (Good to Have):
• AWS (EC2, S3, Lambda, RDS), Azure or GCP
• CI/CD pipeline setup
• Architecture & Patterns:
• Microservices, MVC, Design Patterns
• Event-driven architecture (Kafka/RabbitMQ is a plus)
• Testing:
• JUnit, Mockito
• Postman, REST Assured

Soft Skills:

• Excellent problem-solving and debugging skills
• Strong communication and collaboration abilities
• Ability to lead and mentor a team
• Time management and task prioritization
• Adaptable and quick learner

Qualifications:

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 5+ years of relevant software development experience
• Relevant certifications (Oracle Java, AWS, PMP) are a plus

Eligibility Criteria:

• Must be currently residing in Mumbai
• Must be able to join within 15 days or less
• Immediate joiners preferred

oin us and be a part of a company that thrives on creativity, technology, and excellence. 

CHANCE TO WORK WITH APPS WITH 10LAKH CONCURRENT USERS IN GAMING INDUSTRY 

Role Description 

• You are a champion at Code reviews and Unit/Mock/integration Tests 
• You have a strong sense of ownership of what you design and deploy 
• You provide strong technical mentorship to team members 
• You are an excellent team player 
• You continuously learn and improve 

We are seeking a highly motivated and experienced Senior Java Software Engineer to join our team. In this role, you will lead and manage software development projects across diverse domains such as Gaming, Banking, Fintech, Fantasy Sports, IT, E-commerce, Logistics, Healthcare, and On-Demand Services. You will be responsible for ensuring the successful delivery of projects, meeting deadlines, and exceeding client expectations. 

Skill Sets 

• Excellent Programmer: in Java Intermediate (Collections, Polymorphism, Design Patterns) to Expert level (Annotations, Lambda, Streaming, Concurrency) 
• Startup Experience: Proven ability to take extreme ownership of results, with a history of leaving a lasting impact on the business. 
• Relevant Experience: At least 6-10 years of experience demonstrated the ability to develop resilient, high-performance, and scalable code tailored to application usage demands. 
• Java Framework Expertise: Significant experience in designing and building Java microservices with VERT.X, SPRING BOOT, with proficiency in Java. 
• REST API & GraphQL: Hands-on expertise in development API endpoints with RESTful & GraphQL approach, also non-REST frameworks like gRPC over Thrift or Protobuf Nuances of TCP, UDP, HTTP, HTTP2, SSL, Thorough understanding of designing distributed systems without single point of failures 
• Cloud Proficiency: Strong understanding and hands-on experience of building applications deployed on the cloud using Google Cloud Platform or Amazon Web Services (AWS), Docker, and Kubernetes, Experience writing batch/cron jobs using Python and Shell scripting. 
• Containerization & Orchestration: Experience with containerization technologies like Docker and orchestration tools like Kubernetes. 
• Time & Space Complexity: if methods you write are in the traffic request path, you know how to avoid unacceptable time complexity & space complexity. 
• Database Knowledge: Strong experience with Data Structures & Algorithms working with MongoDB, PostgreSQL, MySQL, Redis, ElasticSearch, and other similar databases, ability to choose the right data store for the given requirements Relational, Graph, Object, Document, Columnar, Key-Value. Experience with Redis, Memcache, EHCache, Hazelcast, Aerospike 
• Messaging Systems: Proficiency in working with RabbitMQ, BullMQ & others 
• Agile Practices: At least a few years of experience practicing the SCRUM framework, collaborating with scrum masters, product owners, and other stakeholders. 
• Collaboration & Communication: A team player who thrives in a remote, collaborative environment. 
• Communication Skills: Strong verbal and written communication skills. 
• Solutions-Oriented: Comfortable with the fast pace of startup life and adept at finding solutions to challenges. 

Responsibilities 

• Scalable Architecture: Lead the design and development of scalable architecture to ensure efficient performance and reliability of web and mobile applications. 
• Informed Decisions: Make informed architectural decisions that align with both current and future business needs. 
• Security & Privacy: Ensure security and privacy considerations are integrated into the selection of solutions and coding of back-end services and API endpoints. 
• Code Quality & High Standards: Uphold high standards of code quality through regular reviews, maintaining best practices in programming. 
• Robust Testing: Implement robust testing strategies to ensure code reliability and performance. 
• Backend Development: Design, develop, and deploy backend services and APIs using VERT.X, SPRING BOOT Java and AWS technologies. 
• NoSQL Expertise: Effective schema design and data modeling for NoSQL databases, ideally MongoDB, including robust indexing strategies. 
• Technical Debt Management: Monitor and control technical debt to ensure it does not compromise application scalability or performance. 
• Task Planning: Collaborate with the PM and BA to plan and delegate tasks efficiently among backend team members, ensuring clear objectives and timelines. 
• User Requirements: Support the PM, BA team in identifying and analyzing user requirements to ensure development aligns with user expectations and project scope. 
• Systems Thinking: Apply systems thinking to align with broader business objectives. 
• Autonomy: Get things done independently without supervision and without creating future issues. 
• Simplicity: Strive for simplicity in solutions and code. 
• Proactive Problem Solving: Fix problems, even those outside your immediate responsibility. 
• Solution-Oriented: Focus on providing solutions to problems, not just writing code. 

Life@Sciflare:  

• An exciting & lively workplace gives you the chance to work in an environment where you may unleash your creativity and inventiveness to the best extent possible. 
• Work in a collaborative setting where your cooperative team contributes new perspectives to your objectives and forges strong bonds. 
• Growth mindset: You are nurtured through each stage of your professional advancement by learning and unlearning new things. 

Total Experience:1-2 Years

Job Type: Contract

Notice: Immediate Joiner

• 1-2 years proven track record of development and design work in the IT industry, preferably in a software product based organization
• Java, springboot, and Microservices
• SQL
• Startup product experience – hustled through various tech, products, stacks
• Having strong experience in Data structures and Algorithms.(Must).
• Good to have experience in Complex Problem solving

Responsibilities:

• Develop and deploy services to improve the availability, ease of use/management, and visibility of 6sense systems
• Architecting, building, and scaling out our services and infrastructure
• Learning and adopting technologies that may aide in solving our challenges
• Own our systems like our Hadoop and Presto clusters, front/back-end services, build configurations, infrastructure components, deployment of services into our infrastructure, and everything in between
• Write/review/debug production code, develop documentation and capacity plans, and debug live production problems
• Contributing back to open-source projects if we need to add or patch functionality
• Support the overall Software Engineering team to resolve any issues they encounter

Minimum Qualifications:

• 5+ years in a Software Engineering role or equivalent experience
• 1+ years of experience with Linux/Unix system administration and networking fundamentals
• Strong skills in reading code as well as writing clean, maintainable, and scalable code
• Good knowledge of Python and Java
• Experience designing, building, and maintaining scalable services and/or service-oriented architecture
• Experience with high-availability

Bonus Requirements:

• Experience with modern configuration management tools (e.g. Ansible, Chef, Puppet) and idempotency
• Exposure to modern build systems such as Bazel, Buck, or Pants
• Knowledge of the Hadoop ecosystem (e.g. Hadoop, Hive, Presto) including deployment, scaling,
• and maintenance
• Knowledge of standard security practices
• 1+ years of experience working with Kubernetes, Docker
• Good knowledge of Javascript 

Job Location: New Delhi

What you’ll do:

• Contribute to all phases of the Software development lifecycle

• Write well-designed testable, efficient code and complex code with Data Structure & Algorithms.

• Ensure designs are in compliance with specifications on Java and RestAPI.

• Prepare and produce releases of software component

• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

• A Developer whose job includes writing complex code, testing, and fixing bugs.

• Maintain, design the database and organize collected information.

• A specialized programmer who focuses on multiple types of development.

What you’ll bring:

• 2 year to 5 years of proven hands-on Software Development experience.

• Strong experience in Java programming

• Expertise Knowledge of Data structures and Algorithms

• Proven working experience in a product-based organization (preferred)

• Understanding with Java frameworks Spring boot, Microservices and ORM frameworks.

• Must have the experience to design and build scalable REST APIs.

• Object-oriented analysis and design using common design patterns.

Nest is a gamified investment platform for the next-generation and young millennials of the world, to invest, play and earn returns more than a regular savings bank account. The world of gaming is merging with finance to offer a more immersive user experience and help users learn how to manage their money. We’re creating a new breed of asset managers and fin-fluencers with Nest.

We are seeking a dedicated Golang developer to join our growing company.

You will collaborate with other technical staff to deliver and maintain a fully-functional mobile application. We hope you can put your passion for software engineering to work for creating highly immersive user applications.

Your duties will include maintaining code repositories via GitHub and internal server storage modules.

Responsibilities

Below are some of the responsibilities a Golang developer is expected to undertake in their position:

• Implement AWS containers to support Go implementation and successful repository maintenance
• Utilize Kubernetes to ensure successful application development, deployment, and scaling
• Implement Docker for smaller-scale applications that require simpler deployments
• Employ Linux Terminal command structures to allow easy back-end operations for less-expert technical staff
• Structure our user interface with React and ensure REST API access is available for enterprise-grade finance customers on-demand
• Collaborate with other technical staff to ensure consistent and smooth DevOps workflows
• Choose and implement other JavaScript libraries that will optimize performance without sacrificing security and base functionality
• Manage multiple projects within reasonable design specifications and budget restrictions
• QA design for errors
• Implement feedback and changes whenever possible
• Create visualizations that convey accurate messaging for the project.

Job Qualifications and Skill Sets

Bachelor’s degree in computer science, IT, or a related field, such as programming. Other critical skills required are:

• Provable proficiency in Go programming
• Excellent written and verbal communication skills
• Minimum of two years’ experience working in programming or information technology
• Attention to detail and Knowledge in Java is recommended
• Portfolio of work with examples that showcase technical skill
• Strong analytical skills
• Time management and organizational skills
• Knowledge of Go templating, common frameworks, and tools
• Experience working with a team

What you’ll receive

• A compensation competitive to premier firms
• Incredible learning and exposure to every aspect of a funded financial startup as an early member, working directly with the founders.
• Recognition and experience of working on a platform with an exponential user growth curve.
• A fun and receptive work culture which promises to never get mundane!
• If you love party, it is on us!

• Involved in entire SDLC lifecycle including analysis, development, fixing and monitoring of issues on the assigned product lines.
• Meets and exceeds standards for the quality and timeliness of the work products.
• Implements, unit tests, debugs and leads integrations of complex code.
• Identify opportunities for further enhancements and refinements to best practices, standards and processes.
• Ensure robust, securely accessible, highly available and highly scalable product that meets or exceeds customer and end-user expectations

Experience

Technical Duties & Responsibilities

3 – 6 Years

With 2-4 years of experience in Scalable Architecture development. We are looking for Independent Contributors, who have good understanding of Microservices based architecture, and a comprehensive awareness of various architectures & their suitability as per product requirements: -

• Can solve problems independently, be responsible for the requirement analysis and design implementation of important business modules, and be familiar with the online deployment environment, able to independently analyse and quickly troubleshoot online faults.

• Familiar with JAVA programming principles, understand their advanced features and class libraries, network and server programming, multi-threaded programming, common open source products
• Experience in SOA EIP using Apache Camel Spring Integration

• High quality coding ability, reusability, low coupling, scalability, high performance, maintainability, high security

• Have the architectural design capabilities of modules and subsystems, master common architectural design methods and patterns

• Understand SOA, event-driven, distributed system principles, large-scale network application structure, message middleware, caching, load balancing, clustering technology, data synchronization, NoSQL

• Have the project experience of RabbitMQ or Kafka

• If the candidate has air fare industry experience, might be priority