
● Proficiency in RESTful API, microservices architecture and containerization technologies
(Docker)
● Strong programming, problem solving skills, data structures and algorithms.
● Solid foundation in Computer Science, distributed systems and web technologies.
● Proficient in one or more Java based backend programming frameworks - Ex - Java spring,
Java spring boot, Java vert.x
● Knowledge of one or more SQL (mySQL, postgres) and noSQL data stores (mongDB or
Cassandra)
● Knowledge of observability systems
● Knowledge of managed cloud services like AWS / Azure / GCP
● Experience with distributed messaging technologies like RabbitMQ, Google PubSub etc.

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JOB DESCRIPTION:
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Required Skills & Experience:
- 4– 12 years of strong hands-on experience in Core Java.
- Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
- Proven experience with Spring, CXF, and REST/SOAP web services.
- Solid understanding of microservices architecture and distributed systems.
- Experience working with Sybase or other relational databases.
- Expertise in multithreading, concurrency, and high-throughput server-side development.
- Exposure to capital markets, sales & trading platforms, or similar financial services applications.
- Good working knowledge of Unix/Linux environments.
- Experience in solution architecture and design documentation is a strong plus.
- Strong problem-solving skills, analytical thinking, and a proactive attitude.
- Excellent communication and interpersonal skills to work effectively with global teams.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- Previous experience in investment banking, capital markets, or financial technology domains.
Why Join Wissen Technology?
- Be a part of a high-growth organization that has expanded 400% in the last five years.
- Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
- Engage with Fortune 500 clients and deliver high-impact projects.
- Certified as a Great Place to Work®.
- Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
- Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
- Global presence across US, India, UK, Australia, Mexico, and Canada.
Website : www.wissen.com
Required Skills for the Java role :
- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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 client-facing applications.
- Good development experience with RDBMS, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
- Bachelor's/Master’s degree in Computer Science or related field from a top-tier institute (IIT, NIT, BITS, etc.).
Job Description:
Proven experience as a Java Developer with a strong understanding of Java and its ecosystems.
Proficient in Spring Framework (Spring Boot, Spring MVC, Spring Data).
Experience with web application development using technologies such as HTML, CSS, and JavaScript.
Knowledge of relational databases (e.g., MySQL, PostgreSQL) and ORM frameworks (e.g., Hibernate).
Familiarity with build tools such as Maven or Gradle.
Understanding of software development life cycle (SDLC) and agile methodologies.
Excellent problem-solving and debugging skills.
Experience with microservices architecture.
Familiarity with containerization and orchestration tools (e.g., Docker, Kubernetes).
Candidate should also have some App development experience in cloud infra. Like familiarity with Docker, Helm Charts, Kubernetes or AWS/Azure k8s infra.
Candidate should have some App development experience in at least one No-SQL Database also (like MongoDB or Cassandra or Redis) apart from RDBMS.
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Roles & Responsibilities JOB TITLE: AEM Developer - Senior
RESPONSIBILITIES:
1. Participation in software development and maintenance
processes as per quality requirements, procedures and best
practices applicable.
2. Implementing, optimizing and supervising efficiency of IT
systems in accordance with specific standards, resolution or
escalation of problems, as appropriate.
3. Drawing up technical documentation.
4. Developing knowledge in scope of information technology used.
5. Developing knowledge in scope of best practices and standards
of creating software.
6. Developing soft skills in scope of effective communication and
efficient teamwork, solution presentation and knowledge sharing.
7. Interpreting business cases, preparing specifications and
analyzing functional and technical requirements.
8. Designing solutions and creating documentation, estimating
individual scope of works and time consumption of works.
9. Within the team and project/services, proactively identifying
problems and proposing measures to increase the level of services.
10. Developing knowledge in scope of information technology
used.
11. Developing knowledge in scope of best practices and standards
of creating software.
12. Spreading the knowledge throughout the organization by
educating and supporting less experienced Specialists.
13. Maintaining industry standards and practices in projects.
14. Performing tasks assigned by the superior.
PROFESSIONAL EXPERIENCE& TECHNICAL SKILLS
1. Minimum 3 years of experience in work related to CQ/AEM
development.
2. Minimum 5 years of experience in work related to Java
development in IT sector.
SOFT SKILLS:
1. Independence in performance of tasks assigned.
2. Team and end user communications skills.
3. Skills to acquire knowledge and put it in practice.
4. Work time estimation based on functional or technical
requirements.
5. Recommending employment in the case of reviewing technical
knowledge of candidates in recruitment process.
6. Work time estimation.
7. Designing and supervising implementation of solutions.
SPECIAL QUALIFICATIONS: Nice to have: AEM 6 Developer
certification
Skills Primary Skills –
1. AEM including Sling Models
2. Apache Sling
3. JCR
4. Sightly (must)
Secondary Skills –
1. OSGi (Apache Felix),
2. Java, JavaEE (Servlet, Filter, JSP)
3. Git
4. Junit
5. Maven
6. REST
7. Object Oriented Design Patterns, Basic HTML + JavaScript
Experience Total Experience – 4-6 years
Relevant Experience – 4-6 years
Qualification Required to perform the
Job (Any Certifications if Needed)
Bachelor’s in information technology or equivalent qualifications.
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.
Required Skills:
- 2+ year of experience in Development in JAVA technology.
- Strong Java Basics
- Spring Boot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) or MongoDB (JSON parsing)
- Proficient in REST API development
- Good at problem solving
Good to Have Skills:
- 2+ years of experience in using Java
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentor ship/coaching is highly desirable.
Are you passionate about using technology to make people's lives better? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.
Role and Responsibilities
- Helping lead the software development lifecycle: technical design, implementation, testing, deployment, and support.
- Working with cross-functional teams effectively to enable business growth.
- Proactively identifying engineering bottlenecks and initiating proposals to improve them.
- Writing high-quality, well-tested code in alignment with industry-wide best practices.
- Applying a product mindset to back-end systems.
-
- About five years of experience delivering product-quality code in an agile set-up
- Experience with Node.js (Hapi, Restify, Express, Mongoose, Socket.IO, Mocha)
- Experience with Elasticsearch
- Experience building and deploying Docker containers
- Strong general Linux experience
- Extensive experience with REST APIs
- Experience with microservice architecture
- Experience with MongoDB
- Expert knowledge of Redis and caching strategies
- Strong knowledge of unit/integration testing, including the art of mocking and writing testable code
- Passionate about technology and making an impact.
- A perpetual learner, who stretches their boundaries and enjoys new ideas.
- A doer who takes initiative and works well in a team.
Blok is a technology-first online ultra-fast grocery delivery service business, and we are on our way to revolutionize how millions of people across countries consume groceries. We believe in a world where getting everything you need, when you need it, sustainably, is the new normal. And it takes less than 10 minutes.
We believe we are positioned to lead this revolution. Why? Our founding and early team have held senior positions at Deliveroo, Uber, Glovo, Mercadona, or Unilever. We have done this before, and we believe we can do it again. But this time, even better.
Embark on the journey and help us launch the revolution in one of the highest growth industries of the year. Help us shape the new normal.
- Well versed in Core Java, OOPs concepts, collections, multi-threading, concurrency, lambdas, and streams.
- Hands-on knowledge of Spring Core, MVC, JPA, Security, transaction
- Working knowledge of REST API designing as well as development, using Spring.
- Exposure to Spring Boot, Docker, Kubernetes, OpenShift for the microservices environment.
- Savvy with SQL and database concepts.
- Ability to use frameworks like JUnit, Mockito, etc., for implementing unit testing.
- Sound understanding of code versioning tools, such as Git/bit bucket with Maven.
- Should have worked in a CI/CD environment with TeamCity/Jenkins.










