Java lead

Job Title : Senior Java Developer (Telecom Domain)

Experience : 6 to 10 Years

Location : Nagpur, Maharashtra

Job Summary :

We are looking for a Senior Java Developer with strong experience in the Telecom domain to design and develop enterprise messaging applications.

The ideal candidate should have hands-on expertise in Java, Kannel SMS Gateway, SMPP protocol, and telecom messaging platforms, along with experience building scalable REST APIs and microservices.

Mandatory Skills :

Java 8/11/17, Spring Boot, Spring Framework, Hibernate/JPA, REST APIs, Microservices, Kannel SMS Gateway, SMPP Protocol, Telecom Messaging Platforms, SMSC Integration, SQL, Linux, Git, CI/CD, Telecom Domain Experience.

Key Responsibilities :

• Design, develop, and maintain Java-based enterprise applications.
• Develop and integrate SMS solutions using Kannel SMS Gateway and SMPP.
• Build REST APIs and Microservices using Spring Boot.
• Integrate with SMSCs and telecom messaging platforms.
• Optimize application performance, reliability, and scalability.
• Troubleshoot production issues and collaborate with cross-functional teams.
• Perform code reviews and mentor junior developers.

Required Skills :

• 6 to 10 years of Java development experience.
• Strong expertise in Java 8/11/17, Spring Boot, Spring MVC, Hibernate/JPA.
• Hands-on experience with Kannel SMS Gateway and SMPP protocol.
• Experience with Telecom SMSCs and messaging platforms.
• REST APIs, Microservices, SQL (MySQL/PostgreSQL/Oracle).
• Linux/Unix, Git, CI/CD pipelines.
• Strong debugging and problem-solving skills.

Preferred Skills :

• Kafka, RabbitMQ, or ActiveMQ.
• Docker & Kubernetes.
• AWS, Azure, or GCP.
• Redis and monitoring tools (Grafana, Prometheus, ELK).
• Experience with Agile/Scrum.

Mandatory Requirement :

Candidates must have prior Telecom industry experience with hands-on working knowledge of SMPP, SMSC, and Kannel SMS Gateway. Profiles without Telecom messaging experience will not be considered.

Are you looking for a super-challenging role designing backend systems that scale to 1000+ TPSs in one of India's fastest growing, profitable near-Unicorns with businesses spanning Lending, E-comm and UPI? Then this is the role for you.

Client Company is a profitable, rapidly scaling unicorn which is extremely well capitalized. Client has a very strong moat in the consumer lending space on the back of which it is entering into additional large markets such as E-comm and UPI.

Client company is now entering its next phase of growth from a fast-scaling startup to a robust, high-scale financial platform serving millions of users daily.

You'll design systems built for 10x100x growth, make the key technical trade-off calls, and stay deeply hands-on. Beyond building, you'll mentor engineers and work directly with founders and product teams to translate business goals into scalable, reliable systems.

This role is an opportunity to:

• Shape the next-generation architecture for a high-throughput fintech system
• Build systems designed to scale 10x100x from current volumes
• Solve real-world problems across performance, reliability, and financial-grade security

Responsibilities

• Design and evolve the platform architecture to support 10x100x growth
• Own systems end-to-end from the first design decision to production impact
• Lead system design discussions and set the long-term technical direction for the platform
• Identify scale bottlenecks early and drive solutions
• Mentor and elevate engineers through design reviews, code quality, and architectural thinking
• Partner directly with founders and product teams to turn business priorities into scalable systems
• Operate with high ownership in a fast-paced environment where priorities evolve quickly
• Drive projects independently own timelines, coordinate with teams, and see delivery
• Conduct rigorous code reviews and champion engineering best practices across the team
• Proactively identify gaps in the system and come up with concrete approaches to address them
• Solve technical problems across the company not just confined to a single pod
• Challenge existing architecture with data and reasoning push back when its the right call, and drive adoption of better approaches.

Requirements

• 7-12 years of experience in backend or platform engineering
• Strong computer science fundamentals (preferably from IIT, BITS, NITs)
• Strong proficiency in backend development (Node.js, Java, Go, or equivalent)
• Proven experience scaling systems through high-growth startup phases (1→10 or beyond)
• Track record of building and owning critical platforms or systems from scratch
• Exposure to high-volume transactional systems; fintech or lending is a strong plus
• Bias for action - moves fast, makes sound decisions, owns outcomes end-to-end
• Comfortable navigating ambiguity and evolving priorities in a startup environment
• Strong problem-solving skills ability to break down complex technical challenges and arrive at pragmatic, well-reasoned solutions
• Hands-on experience with platform engineering developer tooling, shared services, infrastructure abstractions, or internal platforms

Wissen Technology is hiring for Java Tech lead

Required:

• 8-10 years of industrial experience
• Java and related frameworks.
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
• Exposure on Fintech domain is mandatory
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high volume server side development
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.

Company Profile:

Company Name : Wissen Technology

Group of companies in India : Wissen Technology & Wissen Infotech

Work Location - Bangalore

Website : www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: https://www.linkedin.com/company/wissen-technology

Java/J2EE Developer:

SquareShift is a young and fast-growing cloud consulting company, solving cloud challenges through excellence in technology, thought leadership, and quality in execution. We are based in Singapore, with a world-class engineering team in India. 

Founded by serial entrepreneurs, we are a team of tech-enthusiasts who have strong expertise in enterprise product development and cloud technologies. As an early and core member of the team, you will work with founders and will own the organization's business development efforts.

• 5+ years of experience in Java and J2EE
• Expertise in Object Oriented Programming and Design Patterns
• Experience with Web Services (SOAP/REST), JMS, XML
• Experience working with relational databases like Oracle, MSSQL
• Proficient in writing SQL Queries and knowledge on PL/SQL
• Experience with multi-tiered application architecture
• Knowledge of writing secure and optimized code
• Experience with Version Control Systems preferably GIT
• Working experience of build and continuous integration tools – MAVEN and JENKINS
• Strong knowledge of unit testing technologies – JUNIT
• Exceptional defect analysis, triaging and fixing skills
• Experience in Agile Software Development (Scrum or Kanban)

Job Description

As part of our role at a leading global insurance company, we are responsible for developing and managing an application to onboard and oversee the company's sales partners, including agents and brokers. This application provides users with a tailored, independent solution, including a required multi-dimensional validity date concept for administering all organizational and contractual sales force data to deliver structured information to many data consumers.

To reinforce our dynamic development team, we are seeking a skilled Backend or Full-stack Developer. In this role, you will collaborate with international cross-functional teams to design, develop, and deploy high-quality software solutions.

Responsibilities

Design, develop, and maintain the application, ensuring high performance and responsiveness.

Write clean, efficient, and reusable code.

Implement new features and functionality based on business requirements.

Participate in system and application architecture discussions.

Create technical designs and specifications for new features or enhancements.

Write and execute unit tests to ensure code quality.

Debug and resolve technical issues and software defects.

Conduct code reviews to ensure adherence to best practices.

Identify and fix vulnerabilities to ensure application integrity.

Work with frontend developers to ensure seamless integration of user-facing elements.

Collaborate with DevOps teams for deployment and scaling.

Design and implement workflow automation using Camunda BPM, integrating it with backend services and ensuring efficient process execution.

Optimize and maintain business process models and workflow orchestration using Camunda.

Troubleshoot and enhance Camunda BPMN workflows, DMN decision tables, and process automation configurations.

Requirements

 Bachelor's degree in computer science, Information Technology, or a related field.

Proven experience as a skilled Backend or Full-stack Developer. Experience in the insurance domain is appreciated.

Strong experience with Spring Boot 3, Java 17 or newer, and Maven.

Experience with PostgreSQL, Jenkins, Sonar, Dynatrace, Kubernetes, Mockito, IntelliJ IDEA, and GitHub repository.

Hands-on experience with Camunda BPM (v7 or v8), including BPMN workflows, DMN decision tables, and REST API integration.

Experience with Angular TS and/or AWS, Kafka is a plus.

Excellent problem-solving and debugging skills.

Strong communication and collaboration abilities to work effectively in a team environment.

• Build large scale enterprise applications.
• Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
• He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams