Backend Developer

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 4 to 7 years. • 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 client facing applications. • Good development experience with RDBMS. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

About the company:

Aptroid Consulting (India) Pvt Ltd is a Web Development company focused on helping marketers transforms the customer experience increasing engagement and driving revenue, customer data to inform and drive it in every interaction in real time and with each individual behavior possibly.

About the Role:

We’re looking for a Senior Java & PHP Developer to join our backend engineering team that powers high-throughput, large-scale SaaS platforms — delivering billions of personalized communications and marketing events every month. You’ll work on mission-critical services that drive automation, data intelligence, and real-time campaign delivery across global clients. You’ll play a key role in designing scalable APIs, improving platform performance, and mentoring developers — while working closely with distributed teams aligned to US (EST) time zones. 

Key Responsibilities:

• Architect, design, and develop scalable backend services using Java (Spring Boot, Microservices) and PHP (Laravel/Symfony/custom frameworks).
• Lead system design and architecture reviews, ensuring clean code, maintainability, and adherence to best practices.
• Drive API integrations, microservices deployment, and modernization of legacy components.
• Collaborate with product managers, DevOps, and data engineering teams to deliver high impact features and performance improvements.
• Build, maintain, and monitor data-intensive systems that handle large message/event volumes with high reliability.
• Implement strong observability practices (metrics, tracing, alerting) and contribute to production incident reviews.
• Perform code reviews, mentor junior engineers, and advocate engineering excellence.
• Work collaboratively across global teams during EST business hours for sprint planning, releases, and incident response.

Required Qualifications:

• 6–9 years of professional backend development experience.
• Expert in Java (Spring Boot, REST APIs, concurrency, JVM tuning) and PHP (Laravel/Symfony, Composer, PSR standards)
• Strong experience with MySQL / PostgreSQL, Redis, and NoSQL systems. • Familiarity with AWS services (S3, Lambda, ECS/EKS, CloudWatch) and CI/CD pipelines (Jenkins, GitLab, GitHub Actions).
• Hands-on experience in scalable, distributed architectures and performance optimization.
• Strong debugging, profiling, and system performance tuning capabilities.
• Proven ability to deliver reliable, secure, and production-ready code in fast-paced agile environments.
• Excellent communication skills; able to coordinate with global teams across time zones.

Preferred Skills:

• Exposure to Kafka, RabbitMQ, or other event-driven systems.
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Experience integrating with third-party APIs and external SDKs.
• Prior experience in AdTech, Martech, or high-volume SaaS platforms (similar to Sailthru/Zeta Global ecosystem).
• Knowledge of Python/Go for cross-service utilities or internal tooling is a plus.

What We Offer:

• Opportunity to work on high-scale enterprise systems with real-world impact.
• Exposure to global engineering practices and advanced cloud architectures.
• Collaborative culture with technical ownership and innovation freedom.
• Competitive compensation aligned with experience and global standards.

• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE platforms
• Object Oriented analysis and design using common design patterns.
• Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in the Spring Framework
• Experience as a Sun Certified Java Developer
• Experience in developing web applications using at least one popular web

We are looking for experienced Odoo Developers with good development skills in Python. Candidates should have hands-on experience in end to end implementation of the custom modules in Odoo.

RESPONSIBILITIES:

• Develop and deploy ERP/ web applications using OpenERP/ Odoo.

• Customize/ develop various modules such as Accounting, POS Sales & CRM, inventory, Purchasing, , Invoice, Website, Google map, Warehouse, MRP, HR, etc.

• Customize various modules and integrate services/ products ranging from payment gateways to hardware devices with Odoo.

• Understand Functional requirements from clients. Provide GAP analysis and transform them into technical requirements.

• Functional knowledge of ERP modules like Accounting, Stock, CRM, Inventory, HR, Sales, Purchasing, Manufacturing, E- Commerce, and Payment gateway.

• Experience in Migrations, Odoo end user training.

• Knowledge of OOP concepts, SQL, HTML and JavaScript.

• Experience in hosting on AWS or other cloud service providers

• Ability to understand client requirements and translate them into business solutions.

• Develop and deploy ERP modules from scratch

• Adopt new and emerging technologies to provide solutions to client needs. Cater to time difference need

• Identify technical issues and provide solutions

• Testing support.

• Develop and customize reports based on client s specifications in the modules like Accounting, Inventory, Manufacturing and HR. Work on Odoo's internal BI reporting tool for live reports

• Skills

• Strong familiarity with the Odoo framework is mandatory.

• Should have a solid knowledge of Python and programming concepts. Contribution for Open Source Projects will be advantageous.

• Good problem solving and analytical skills

Education:

• Bachelor's (Preferred)