Job Title: Senior Software EngineerLocationExperienceJob DescriptionWe are seeking a Senior Software Engineer to join our dynamic engineering team, focusing on designing, developing, and optimizing large-scale ad technology systems. This role requires expertise in building high-performance, distributed systems capable of handling millions of transactions per minute. You will work closely with cross-functional teams to enhance the scalability, robustness, and performance of our real-time bidding systems.
- ResponsibilitiesDesign and implement high-performance microservices to handle large volumes of real-time data requests.
- Collaborate with the AdExchange team to optimize real-time ad buying, selling, and auctioning processes.
- Lead the development and enhancement of key features such as loss notifications and bidder engagement strategies.
- Build A/B testing mechanisms to optimize bidder responses and URL accuracy.
- Improve the scalability and reliability of critical services, utilizing advanced monitoring tools like Prometheus and Kafka.
- Conduct code reviews, create design documents, and mentor junior engineers.
- Manage end-to-end project lifecycles, from architecture design to deployment in production environments.
- Required SkillsProficiency in Java, Docker, Aerospike, Kafka, and MySQL.
- Strong understanding of distributed systems, microservices, and real-time bidding technologies.
- Experience in optimizing system performance to handle high-throughput, low-latency requirements (600,000+ requests/min).
- Expertise in monitoring and logging tools such as Prometheus, Grafana, and log management systems.
- Knowledge of cloud technologies (AWS or similar).
- Strong problem-solving skills and experience in A/B testing for optimizing system components.
- Preferred SkillsExperience in ad technology or large-scale data processing systems.
- Familiarity with JavaScript, REST APIs, and integration workflows.
- Hands-on experience with Kubernetes and event-driven architectures.

About AdElement
About
AdElement is an online advertising startup based in Pune. We do AI driven ad personalization for video and display ads. Audiences are targeted algorithmically across biddable sources of ad inventory through real time bidding. We are looking to grow our teams to meet the rapidly expanding market opportunity.
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Job Title : Backend Engineer (AI-First | FinTech/Crypto)
Experience : 3 to 6 Years
Location : Gurugram (Sector 49)
Working Hours : 10:00 AM – 6:00 PM
Work Mode : On-site | 6 Days Working
Employment Type : Full-time
Role Overview :
This is not a typical ticket-based engineering role. You will take end-to-end ownership of systems—designing architecture, building scalable solutions, and solving real-world performance challenges.
We operate in an AI-first engineering environment, leveraging advanced tools and automation workflows to build high-performance distributed systems.
Mandatory Skills :
Java/Spring Boot or Node.js, System Design (HLD/LLD), Distributed Systems, Event-Driven Architecture (Kafka/RabbitMQ), Low-Latency APIs, PostgreSQL/MongoDB, CI/CD, Docker/Kubernetes, AI-assisted development (Copilot/Cursor/Claude)
Key Responsibilities :
- Design and build scalable backend systems (Java/Spring Boot, Node.js, or similar).
- Architect and implement event-driven systems (Kafka, RabbitMQ, pub/sub).
- Develop secure and reliable financial systems with strong data integrity.
- Solve scalability and performance challenges in fintech/crypto environments.
- Own features end-to-end: design → development → deployment → monitoring.
- Work with real-time data pipelines (WebSockets, streaming, event sourcing).
- Define service contracts and optimize system architecture.
AI-First Engineering (Must-Have Mindset) :
You will :
- Use tools like GitHub Copilot, Cursor, and Claude in daily development
- Follow spec-driven development using structured instructions
- Review, validate, and ship AI-generated code with strong engineering judgment
Core Requirements :
- 3+ years of backend development experience.
- Strong expertise in Java (Spring Boot) or Node.js.
- Solid understanding of System Design (HLD/LLD, Distributed Systems).
- Experience with event-driven architectures (Kafka, RabbitMQ, async pipelines).
- Hands-on experience building low-latency, high-throughput systems.
- Strong database knowledge (PostgreSQL, MongoDB, etc.).
- Understanding of security, performance optimization, and reliability.
- Experience with CI/CD, Git, Docker, Kubernetes.
- Exposure to React / React Native is a plus.
Good to Have (Differentiators) :
- Experience in FinTech / Crypto / Web3 / Blockchain.
- Built systems for trading, payments, or real-time financial data.
- Experience with AI agents, automation pipelines, or agent-based systems.
- Exposure to parallel AI workflows (coding / testing / refactoring).
- Contributions to open source or technical blogs.
- Experience handling production-scale systems.
BlackLight Games
About Us:
We are BlackLight Games; we bring culturally relevant synchronous multiplayer games experience to mobile. Our games have been rocking the Play Stores since launch. We have built cutting-edge back-end technology; we take pride that our games are played by more than 1 million players daily. Our flagship game, Ludo SuperStar has been downloaded more than 100 million times. Other titles include – CallBreak, Carrom, Solitaire, Spider Solitaire and Word games.
Website link- https://blacklightsw.com/
Position: Backend Developer( Java/SpringBoot/MySQL)
Location: Noida
Educational Qualification: B.Tech/ MCA / M.Tech / M.Sc or relevant professional experience; preferably in Computer Science.
Skills :
- Backend: Java/SpringBoot
- Databases: MySQL
Job Summary:
We are looking for a skilled Backend Developer to join our growing team and help build scalable systems that power products used by millions every month. You will work on Java, Spring Boot, and MySQL, with exposure to Node.js, crafting APIs and backend services that are reliable and production-grade.
What You Bring To The Team
- 3-4 years of backend development experience with Java and Spring Boot as primary focus.
- Strong working knowledge of MySQL (schema design, query optimization, migrations).
- Understanding of REST APIs and system design.
- Comfort with live system debugging, monitoring, and performance tuning.
- A mindset of ownership and building with quality.
- Design and develop scalable, reliable backend services and APIs using Java, Spring Boot, and MySQL.
- Participate in code reviews, architecture discussions, and best practices.
- Collaborate with the frontend and game backend teams for seamless feature delivery.
- Write clean, maintainable code with proper testing and documentation.
- Monitor, debug, and improve live systems, ensuring high availability.
Extra Gems For
- Basic familiarity with Node.js and its ecosystem would be good to have.
- Experience working on a product that has launched and scaled to a solid user base would be good to have.
- Understanding of microservices architecture
- Exposure to AWS or GCP for deployments and scaling.
- Understanding of caching, queues, and real-time data pipelines.
- Prior experience in product-focused startups.
Why Us?
- High Growth Startup environment.
- Fast-paced, ownership-driven environment.
- You’ll build products millions play every month.
- Friendly, collaborative team with high standards.
- Culture that values learning, quality, and growth.
- Company sponsored courses and education material.
- Lots of learning opportunities.
- Work with a super-talented team of professionals.
- Informal work-culture, Casual Dress Code, multiple outings and trips.
- Medical Insurance for you and your family.
- Subsidies Lunch and Unlimited Snacks, Tea & Coffee in the house at all times.
We are seeking extremely smart programmers who are gung ho about building large scale systems that are going to have a big impact on millions of customers.
Responsibilities:
- Design and develop products by working closely with business team.
- Gain experience with hands on coding and independent ownership of software components.
- Build performant, scalable, enterprise ready back end architectures that can support millions of users in parallel.
- Follow strong engineering best practices and champion their adoption.
Requirements:
- 2+ years’ experience in software product development and delivery.
- Bachelors or Masters degree in engineering from a reputed institute(preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem solving abilities.
- All experience should be from good product development or e-commerce background.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Expert at Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred). NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.
Technical Skills Desired:
- Must have experience in either of JavaScript frameworks: Angular
- Must have experience in either of backend software development [J2EE, Spring Boot, Spring core, JPA]
- Must have experience in designing/implementing Hibernate/ORM, Restful web services, Micro Services using Java
- Knowledge with relational/ NoSQL databases (e.g., Oracle, MySQL, MongoDB)
- Knowledge with versioning (Git or SVN) /build tools (Maven/Ant/Gradle/Junit), Unit testing & code coverage tools is desired
- Knowledge of App / Web servers (NGINX / Tomcat / Jboss Wildfly)
- Understands the process of new application development and has the ability to apply these concepts with minimal mentoring and supervision.
- Advanced knowledge experience using any of IDE (e.g., Eclipse, SonarQube, STS, VS Code)
- Knowledge on Cloud platform, technologies & deployments is an added advantage
- Resolves technical issues through debugging, research, and
- Must have experience with Agile tools
Functional Skills Desired:
- Good knowledge in product development domains
- Knowledge in Finance and Insurance domain preferred
- Maintain quality and ensure responsiveness of
- Complete application development by coordinating requirements, schedules, and activities contributing to team meetings;
- Troubleshooting development and production problems across multiple environments and operating platforms.
- Collaborate with the rest of the engineering team to design and launch new features
- Understanding and implementation of security and data
- Ensure designs are in compliance with specifications and standards and best industry
- Usage of Process tools – JIRA, TFS, HP QC or any other agile tools, also knowledge of CMM Level 3 development process.
- Self-motivated & working independently with minimal
- Maintain code integrity and
- Experience working with graphic designers and converting designs to visual
- Follow the coding standards for java and angular
Technical Skills Good to Have:
- Usage of troubleshooting tools like J Profiler, J Meter or application performance tuning
- Exposure to Non-web-based developments, for both mobile and
- Development experience using Docker, Kubernetes, Containerization etc in AWS or other cloud platforms
- Willing to take up proof of concepts and showcase the technical capability
- Usage of design tools Visio or draw io
- Usage of CI/CD pipeline
Work closely with Product Manager to derive capability view from features/solutions, Lead execution of medium-sized projects Work with broader stakeholders to track the impact of projects/features and proactively iterate to improve them As a senior software engineer you must have Extensive and expert programming experience in at least one general programming language (e.g. Java, C, C++) & tech stack to write maintainable, scalable, unit-tested code. Experience with multi-threading and concurrency programming Extensive experience in object-oriented design skills, knowledge of design patterns, and huge passion and ability to design intuitive module and class-level interfaces Excellent coding skills – should be able to convert the design into code fluently Knowledge of Test Driven Development Good understanding of databases (e.g. MySQL) and NoSQL (e.g. HBase, Elasticsearch, Aerospike, etc) Strong desire to solving complex and interesting real-world problems Experience with full life cycle development in any programming language on a Linux platform Go-getter attitude that reflects in energy and intent behind assigned tasks Worked in a startups environment with high levels of ownership and commitment BTech, MTech, or Ph.D. in Computer Science or related technical discipline (or equivalent). Experience in building highly scalable business applications, which involve implementing large complex business flows and dealing with a huge amount of data. An open communicator who shares thoughts and opinions frequently listens intently and takes constructive feedback. As a Software Engineer, good to have The ability to drive the design and architecture of multiple subsystems Ability to break-down larger/fuzzier problems into smaller ones in the scope of the product Understanding of the industry’s coding standards and an ability to create appropriate technical documentation. PhonePe Full Time Employee Benefits Insurance Benefits - Medical Insurance, Critical Illness Insurance, Accidental Insurance, Life Insurance Wellness Program - Employee Assistance Program, Onsite Medical Center, Emergency Support System Parental Support - Maternity Benefit, Paternity Benefit Program, Adoption Assistance Program, Day-care Support Program Mobility Benefits - Relocation benefits, Transfer Support Policy, Travel Policy Retirement Benefits - Employee PF Contribution, Flexible PF Contribution, Gratuity, NPS, Leave Encashment Other Benefits - Higher Education Assistance, Car Lease, Mobile & Broadband Reimbursements, Salary Advance Policy
We are scaling rapidly in user engagement (reached 150K+ daily transactions within 3 months of beta launch), and if you're looking to deal with scale, this is for you.
About Trago.in: We are a neo-trading platform where one can trade their opinions on real-time events across politics, Sports. We are building in a super-interesting category with a focus on things happening around you and giving the audience a platform to earn from opinions and knowledge.
We are a seed-funded company with marquee investors from across the globe and an amazing set of co-founders from the premier institutes of India.
To know more about us, please visit: www.trago.in
Responsibilities:
* Build the APIs and internal mechanisms of the Trago backend across all our services.
* Architect and guide building end-to-end systems optimized for speed and scale.
* Build and lead engineering teams to achieve product roadmap milestones.
* Oversee the research and development of new products and technologies.
* Be available for troubleshooting in case of backend emergencies.
Requirements:
* Bachelors in Computer Science or any Engineering domain with experience in Software Programming.
* 2-5 years of experience building large-scale software applications.
* Highly proficient with Java and knowledge of the many intricacies of Spring Boot.
* Proficient with MongoDB and Redis.
* Knowledge of Aerospike, and other databases would be a bonus. Good understanding of distributed systems (servers, databases, etc.).
* Positive and solution-oriented mindset and comfort working in a highly agile, intensely iterative software development environment.
What's in for you?
* Work directly with founders
* Freedom to experiment and get creative.
* Be Yourself, every day.
* Build for scale - We are building Trago with a mindset to scale to 100 mn+ customers in 3 years. We are presently doing 150K transactions a day, which we will scale by 100x in one year.
Job Description:
Excellent Java development skills using J2EE, J2SE, Servlets, JSP, JDBC, Java, Spring, Springboot, Hibernate, Microservices, Webservices, Extensive experience designing, developing RESTful APIs, coding experience with either Java/J2EE/Spring, Good SQL knowledge
Required experience in Core Java, Spring, Springboot, Hibernate, Microservices, rest services
Able to understand SDLC process, Extensive experience designing and, developing RESTful APIs, Extensive coding experience with either Java/J2EE/Spring
Qualification Any Graduate
Jamun Informatics Private Limited (Jamun) is a Delhi-based startup Backed by Splendor Group, a pedigreed Indian business house. Jamun is focused on creating niche software solutions to solve B2C and B2B problems in the ecosystem of Consumer Durables and Electronics (CDEs). Jamun is creating India’s first Super App for Personal and Home Electronics and Appliances or CDEs – PingKaro. Jamun is partnering with various Brands and integrating with their CRM systems to create a new ecosystem for customers across the country.
POSITION: Fullstack Java Developer / Senior Software Developer
LOCATION: New Delhi
PRIMARY SKILLS: Java, AWS, Spring, Spring, multithreading, mySql, mongoDB.
EDUCATION: B.Tech/B.E. in Any Specialization, MCA
ROLES AND RESPONSIBILITIES
•Someone strong/experienced in Java development along with AWS.
•Hands-on experience with Frameworks like SpringBoot, Spring MVC, hibernate is must
•Good experience with Multithreading & Collections.
•Knowledge of lambda, S3, containers, ElastiCache, Aurora/RDS, noSql(MongoDB),
•Knowledge or experience with AngularJS or ReactJS will be an added one.
•Java 11 is a must.
TECHNICAL REQUIREMENTS:
•Hands-On experience on Springboot, Spring MVC, Web services (RESTful/Web Client API), JPA, Microservices.
•In depth understanding of Databases (mySQL/NoSQL).
•Proficient in Java Collection, Multithreading, Version control tools: GIT/BigBucket, Caching Strategies, JUnit & Mockito Testing, Server side validation, Transaction Management.
•Profound in Memory Management, Performance Tuning, Spring Profiles, Knowledge about Postman, Jira tools, Versioning tools (GIT/Bitbucket), to commit code.
•Good in problem solving and delivering high quality code.
•For API testing understanding of POSTMAN/SOAPUI, Jenkins for CI/CD pipelines and Kibana is a must.
•Hands-on experience on Java11, Spring boot, Web service (Restful/Web Client API), JPA, Microservices, DB working knowledge (SQL/No SQL).
ADDITIONAL SKILLS (SECONDARY SKILLS):
Understanding of AWS, Docker, Swagger, Dev Ops, Scrum/Agile, UI will be a plus.
• Prior Startup Experience would be preferred.
• Immediate Joiners Preferred
Position: Senior Java Developer / Tech Lead
Work Location: Bangalore; India
Type of Employment: Full-time, Permanent
Experience: 6 to 10 years of Experience
- Proficient in Java/J2EE , core java, full stack development experience ( Database to UX)
- Must be proficient with integration with third-party applications within the enterprise and outside the organizations (API)
- Must be good in writing highly optimized code.
- Must be good at abstracting solutions - reduce time and cost to build
- Experience with Workflow Engines like Activiti will be an advantage
- Good understanding of native Android code/interface with Android apps, if preferable
- Must be an expert in managing data at the application database level - Transaction and Reporting database design
- Must be good in coding & product development
- Experienced with monitoring and observability
- Experienced with production support and debugging (heap dumps, thread dumps etc)
- Experience in Logistics domain is desirable
- Prior startup experience is preferred
Requirements:
- Bachelor’s or equivalent degree in Computer Science / BE
- Ability to handle the team of 7 to 8 members and giving guidance to the team
- Strong problem-solving skills
- Ability to respect deadlines and will to perform in an accelerated learning environment.
Key Skills: Java, J2EE, JSP, Spring, Angular, Apache, MySQL, SQL Queries,LinuxEnviroment, HTML, JQuery, Java Script, Version Control, .Net, Activiti, IBatis, Maven – Build, Git Hub, J Bos, CSS, HTML 5, JIRA, Selenium,AWS – Server Handling, Android, React JS
Note: Hiring from logistics and Ecommerce company only and 30-45 days’ notice is ok and can also buy back notice if required.











