
• More than 3+ years of experience developing serverless applications using public
cloud like Google Cloud/ AWS
• Knowledge of Node. js and frameworks available for it.
• Strong proficiency with JavaScript
• Understanding the nature of asynchronous programming and its quirks and workarounds.
• Distributed system development with an understanding of latency, scalability, scheduling, asynchronous programming, and reliability
• Understanding fundamental design principles behind a scalable application
• Experience with services common to serverless architectures, like: AWS Lambda, DynamoDB, IAM, Firebase Real Time Database, Google Cloud SQL, Cloud Tasks.
It’s a bonus if you have worked on Google Cloud Project and Firebase.
• Solid Experience with NoSQL and SQL databases is required with proven experience of creating database schemas that represent and support business processes.
• Integration of multiple data sources and databases into one system.
• Experience with deploying, maintaining, debugging live systems, and end-to-end testing and analysis
• Experienced in creating micro-services based architectures, reusable components
• Experience building REST APIs and other common application architectures on the above services
• Experience building data processing pipelines
• Solid understanding of code, design, and development practices
• General comfort in exploring, assessing, and learning new frameworks
• High levels of integrity and professionalism, and an ability to channel maximum amounts of energy into the role delivering premium customer service at all times
• Adhere to different Project Management methodologies (Agile etc) and leverage different CI/CD tools
Extra Gems for:
• Google, AWS and/or Industry certifications.
• Familiarity with object storage such as AWS S3, Firebase Storage, in-memory caches such as Redis
• Demonstrated performance of threat modeling, risk assessment techniques, code reviews in the context of DevSecOps security
• Knowledge of Application Monitoring using tools like Google Stackdriver
• Broad familiarity with other languages like J2EE, Python as we write some code in these as well.
• Experience with Github and advanced Github features.
• Experience of working in Product industry
• Open source contributions, interesting hobby projects.
Your responsibilities would include:
• Your primary focus will be the development of reliable server-side logic that would be used by millions of users daily.
• Augmenting an in-house authoritative serverless real-time multiplayer gaming backend catering lakhs of events every second.
• Designing, implementing and optimising low-latency, high-availability, secure and performant system for our end-user; ensuring “awesome” user-experience.
• Defining and maintaining the database, keeping in mind high performance and responsiveness to all requests-rate.
• Have the ownership of designing architecture, developing, maintaining,
debugging, scaling live backend services.

About BlackLight Studio Works Pvt Ltd
About
About BlackLight Studio Works : We are BlackLight and we bring classic game experience to Mobile .Our games have been rocking the Play Store India since launch.
Our real time multiplayer games are a piece of cutting-edge technology, we take pride that they are played by more than 1 million players daily.
Our flagship game, Ludo SuperStar has been downloaded more than 50 million times. Other titles include - CallBreak, Carrom, Solitaire, Spider Solitaire and Word games.
Why Should you Join us ?.
• Lot of learning opportunity-free Books / Courses.
• Competitive Salary
• Free Medical Insurance for you and your family!
• Lunch on all day you order we pay 60%.
• Unlimited Snacks, Tea & Coffee on the house at all time.
• Work with super-talented team of engineers and designers.
• Casual Dress Code.
Connect with the team
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We have an immediate requirement for a Java Developer role in the Pune location. Please find the details below:
Role: Java Developer
Experience: 3–4 Years (Mandatory)
Location: Pune
Joining: Immediate joiners only
Key Responsibilities:
- Develop and maintain scalable and robust J2EE applications
- Follow and implement coding standards within the project
- Integrate with third-party APIs and services
- Work in an Agile environment to design and implement new features
- Support team members in resolving technical issues
- Debug and resolve production issues (code/infrastructure)
- Communicate effectively with team members and product management
Mandatory Skills:
- Strong knowledge of Java and JEE internals (Class Loading, Memory Management, Transaction Management, etc.)
- Expertise in OOPs/OOAD concepts and design patterns
- Hands-on experience with Spring Framework and Web Services
- Basic knowledge of JavaScript, jQuery, AJAX, and DOM
- Good understanding of SQL, relational databases, and ORM (Hibernate/DAO)
- Strong problem-solving skills and communication abilities
Important Note:
- Interview is scheduled for Monday
- Selected candidates are expected to join by Tuesday or Wednesday
This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on:
* Designing complex algorithms
* Building high-performance, memory-efficient systems
* Owning deep backend logic that actually moves the needle
You will work close to the core engine of the product, not the edges.
What You’ll Be Trusted With
* Architect and build backend systems that must perform under load
* Design and implement custom algorithms for real-world, non-trivial problems
* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency
* Build backend services where latency, throughput, and correctness matter
* Own document & PDF processing pipelines end-to-end:
-Composition
-Rendering
-Optimization
- High-volume generation
* Make hard technical decisions and stand by them
Non-Negotiable Skills
* Exceptional Java expertise (Core Java, Spring Boot, Java 8+)
* Strong command over:
- Data structures & algorithms
- Multithreading & concurrency models
- JVM internals & memory management
* Proven experience building custom algorithms (this will be evaluated)
* Deep backend engineering experience with Spring / Spring Boot
* Strong understanding of:
- API design principles
- Fault tolerance & resilience
- Performance tuning & profiling
* Ability to reason about time complexity, space complexity, and trade-offs
* Strong database fundamentals (query optimization, indexing, transactions)
* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ)
* Exposure to Kubernetes-based deployments or large-scale microservices
Interview Focus (Be Prepared)
* Algorithm design & problem solving
* Deep Java fundamentals
* System design discussions (backend-heavy)
* Performance tuning scenarios
* Real-world debugging and optimization challenges
About us:
Trential is engineering the future of digital identity with W3C Verifiable Credentials—secure, decentralized, privacy-first. We make identity and credentials verifiable anywhere, instantly.
We are looking for a Team lead to architect, build, and scale high-performance web applications that power our core products. You will lead the full development lifecycle—from system design to deployment—while mentoring the team and driving best engineering practices across frontend and backend stacks.
Design & Implement: Lead the design, implementation and management of Trential products.
Lead by example: Be the most senior and impactful engineer on the team, setting the technical bar through your direct contributions.
Code Quality & Best Practices: Enforce high standards for code quality, security, and performance through rigorous code reviews, automated testing, and continuous delivery pipelines.
Standards Adherence: Ensure all solutions comply with relevant open standards like W3C Verifiable Credentials (VCs), Decentralized Identifiers (DIDs) & Privacy Laws, maintaining global interoperability.
Continuous Improvement: Lead the charge to continuously evaluate and improve the products & processes. Instill a culture of metrics-driven process improvement to boost team efficiency and product quality.
Cross-Functional Collaboration: Work closely with the Co-Founders & Product Team to translate business requirements and market needs into clear, actionable technical specifications and stories. Represent Trential in interactions with external stakeholders for integrations.
What we're looking for:
Experience: 5+ years of experience in software development, with at least 2 years as a Technical Lead.
Technical Depth: Deep proficiency in JavaScript and experience in building and operating distributed, fault-tolerant systems.
Cloud & Infrastructure: Hands-on experience with cloud platforms (AWS & GCP) and modern DevOps practices (e.g., CI/CD, Infrastructure as Code, Docker).
Databases: Strong knowledge of SQL/NoSQL databases and data modeling for high-throughput, secure applications.
Preferred Qualifications (Nice to Have)
Identity & Credentials: Knowledge of decentralized identity principles, Verifiable Credentials (W3C VCs), DIDs, and relevant protocols (e.g., OpenID4VC, DIDComm)
Familiarity with data privacy and security standards (GDPR, SOC 2, ISO 27001) and designing systems complying to these laws.
Experience integrating AI/ML models into verification or data extraction workflows
Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• working knowledge of Kafka
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.
Title:- Java Backend Developer
Location:- Chennai ll Kochi ll Trivandrum
Employment Type:- Full time
Experience Required:- 5+ years
Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
- 5 to 11 years of relevant work experience in Java development.
- Java, Spring, Spring boot, Micro services
Additional Skills (Optional):
Experience with cloud platforms such as AWS, Azure, or Google Cloud.
Knowledge of Agile methodologies and tools like Jira.
Good communication and teamwork skills.
Skills: Java, Spring boot, Implementation, Healthcare
Software Architect
Bangalore, India / Engineering/ Full-time
Job Overview:
As a Software Architect, you will play a crucial role in designing, developing, and maintaining robust and scalable backend solutions for our software applications. You will be responsible for making strategic technical decisions, and collaborating with cross-functional teams to ensure the successful delivery of high-quality software products with scalable backend infrastructure.
Responsibilities:
- System Architecture:
- Design and architect scalable, efficient, and maintainable backend systems.
- Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications.
- Technical Leadership:
- Provide technical leadership and guidance to the development team, ensuring best practices and coding standards are followed.
- Mentor and coach team members, fostering a culture of continuous learning and improvement.
- Backend Development:
- Lead the development of backend components, modules, and features primarily on Ruby on Rails tech stack and also be open to contribute in other tech stacks based on Java/Kotlin and Python.
- Implement and maintain APIs, data models, and database structures to support application functionality.
- Performance Optimization:
- Identify and address performance bottlenecks, ensuring optimal system response times and resource utilization.
- Implement caching strategies and other performance optimization techniques.
- Collaboration:
- Collaborate with frontend developers, product managers, and other stakeholders to integrate frontend and backend components seamlessly.
- Participate in code reviews to ensure code quality, adherence to standards, and knowledge sharing within the team.
- Security and Compliance:
- Implement and enforce security best practices to safeguard sensitive data.
- Stay updated on industry trends and emerging technologies to ensure compliance and security standards are met.
- Documentation:
- Create and maintain comprehensive technical documentation for the backend architecture, APIs, and development processes.
- Continuous Improvement:
- Proactively identify opportunities for process improvement and contribute to the evolution of development methodologies and practices.
Qualifications:
- Overall 10+ years of experience, with 2+ years as a Software Architect with a focus on backend development using Ruby on Rails.
- In-depth knowledge of Ruby on Rails framework, database design, and API development.
- Strong understanding of software architecture principles, design patterns, and best practices.
- Experience with performance optimization, scalability, and security considerations.
- Excellent communication and collaboration skills.
- Leadership experience with a demonstrated ability to mentor and guide development teams.
- Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent work experience).
Bonus points:
- Familiarity with front-end technologies and frameworks(ReactJs).
- Experience with other programming languages.(Kotlin/Python)
- Experience with cloud platforms and microservices architecture.
- Knowledge of DevOps practices and tools.(AWS, Kubernetes, )
Join us in revolutionizing the way software solutions are developed, and contribute to building cutting-edge applications that make a positive impact on our users and the industry.

Skills required are Java, microservice,Spring boot, and knowledge of AWS.
Location; Pune.











