Java Technical Lead

3Pillar; India; On-site; INR 1,500,000 - 2,000,000; Full time

Job summary

3Pillar is seeking a Senior Java Developer with over 8 years of experience in the telecommunications domain. You will facilitate communication with project stakeholders, craft performant code, and participate in planning and estimation efforts, ensuring project delivery from conceptualization to deployment.

The ideal candidate will possess in-depth knowledge of Java 21, Spring Boot, and NoSQL databases, and is expected to engage in agile practices while mentoring others in the engineering community.

Qualifications

• A minimum of 8+ years of experience in telecommunications and Java development.
• Strong Core Java and micro-services knowledge with expertise in multi-threaded applications.
• Excellent exposure to Unit Testing and technical responsibility over delivered solutions.

Responsibilities

• Facilitate effective communication with client stakeholders regarding project status.
• Craft efficient and scalable client code, ensuring high quality.
• Actively participate in project planning and estimation efforts.

Skills

Deep understanding of telecommunications domain

Java 21

Spring Boot

Oracle

PostgreSQL

NoSQL

C++

Docker

Kubernetes

Kafka

Unit Testing

Job description

Key Responsibilities

• Facilitate effective communication with client project stakeholders regarding project status and recommendations.
• Craft client code that is not just efficient, but also performant, testable, scalable, secure, and of the highest quality.
• Actively participate in accurate planning and estimation efforts, utilizing project methods and tools.
• Proficiently gather requirements and organize/present developed features for clients.
• Execute complex activities within the current methodology and quality standards, showcasing success across diverse engagements.
• Promote client success across the team by collaborating with engineers, designers, and managers to understand user pain points, anticipate potential problems, and iterate on solutions that drive client success.
• Engage in agile software development, including daily stand‑ups, sprint planning, team retrospectives, and other governance activities.
• Actively participate in the Engineering Practice community, mentoring others through Communities of Practice (CoPs) or on project teams, and supporting the growth of technical capabilities.
• Independently drive project delivery within defined architecture, demonstrating autonomy and accountability in all stages from conceptualization to deployment.

Must have skills

• A minimum of 8+ years of experience/expertise in the following areas specified below:
  • Deep understanding of telecommunications domain.
  • Java 21, Spring Boot, Redis/Redisson, Oracle, PostgreSQL, NoSQL, Characterization Testing, Telecom Protocols.
  • Knowledge of C++, Docker, Kubernative, Kafka.
  • Proven track record of design, development and implementation of Java‑based large volume, high availability enterprise applications.
  • Strong Core Java, micro‑services knowledge including multi‑threaded application development.
  • Experience on exception handling, correct use of data structures, multi‑threaded programming, memory management and application tuning.
  • Experience with Spring and ORM technologies.
  • Must have knowledge of C++ to understand legacy systems.
  • Good hands‑on experience with Oracle, PostgreSQL, NoSQL and ability to write data structures, basic SQL queries and knowledge of joins, views, group‑by, having clause, etc.
  • Able to understand telecom protocols (SS7, Diameter, etc.).
• Must have excellent exposure in Unit Testing.
• Technical responsibility over the solutions delivered.
• Cross‑team involvement.
• Involvement in the architectural activities at account level.
• Helps team remove roadblocks to successful delivery.
• Involved/driver of initiatives that provide value to client outside of day‑to‑day activities.
• Partners up with PDM to improve processes, ensure delivery success, raise project risks.
• Requirement analysis, coding, design, implementation, testing, problem analysis and resolution, and technical documentation.

Additional Experience Desired

• Object‑Relational Mappers (ORMs).
• Architectural (Microservices, Serverless, etc.) and Design (Factory, Singleton, Observer, etc.) Patterns.
• Unit Testing.
• Working in the Cloud.
• Containers using Docker/Kubernetes.
• Specific client‑engagement specified technologies, which will be determined and vetted at the time of the interview.