Senior Java Developer

Location: Bangalore (Hybrid)

Experience: 4–8 Years

About the Role

At Twenty20 Systems, we are looking for a Senior Software Engineer (Integration) who can build and support scalable integrations across enterprise applications, APIs, and data systems.

This role is ideal for someone who is hands-on, technically strong, and excited to solve real integration challenges in a fast-paced environment. You will work closely with engineering, product, and delivery teams to build reliable integration solutions while contributing to architecture and engineering best practices.

What You’ll Do

• Design, develop, and maintain enterprise integrations, APIs, and automation workflows across internal and third-party systems.
• Build and manage integrations using Workato and other iPaaS/middleware platforms.
• Develop and optimize API-based services, data pipelines, and workflow automations for business-critical use cases.
• Work with product, engineering, and business teams to understand requirements and build scalable solutions.
• Troubleshoot, monitor, and improve integration performance in production environments.
• Build reusable components, connectors, and automation logic to improve delivery efficiency.
• Ensure integrations follow security, reliability, performance, and governance standards.
• Support delivery teams in resolving integration issues and improving system performance.

Requirements

• 4–6 years of experience in software engineering, middleware, or enterprise integrations.
• Strong hands-on experience in Workato (Boomi, MuleSoft, WSO2, TIBCO experience is a plus).
• Good understanding of REST/SOAP APIs, webhooks, OAuth, and connector-based integrations.
• Strong skills in JSON, XML, SQL, JavaScript/Python, and data transformation logic.
• Experience working with enterprise applications like Salesforce, NetSuite, Workday, Snowflake, Shopify, etc.
• Exposure to cloud platforms (AWS/Azure/GCP) and automation architectures is a plus.
• Good debugging, troubleshooting, and problem-solving skills.
• Ability to work in a fast-paced delivery-oriented environment with strong ownership.

What Your First 3 Months Will Look Like

• Take ownership of assigned integration projects and support ongoing delivery pipelines.
• Work on API integrations, automations, and troubleshooting real-time production scenarios.
• Collaborate with senior engineers and product teams to improve integration quality and performance.

Where You’ll Be in 6 Months

• Independently handling multiple integration workflows and delivery requirements.
• Contributing to reusable frameworks and engineering best practices.
• Becoming a key technical contributor for integration design and production support.
• Driving faster delivery through automation and optimized integration patterns.

We are looking for an experienced .NET Integration Developer with strong expertise in C#, ASP.NET Core, APIs, microservices, and enterprise system integration. The ideal candidate will have hands-on experience building production-grade integration solutions, event-driven architectures, and secure, scalable services using modern .NET technologies.

Key Responsibilities

• Build & Own APIs: Design, develop, and maintain production-grade RESTful APIs and gRPC services using ASP.NET Core, taking ownership from technical specification through deployment and production support.
• Enterprise System Integration: Integrate ERP, CRM, legacy, and third-party platforms using modern middleware and integration patterns, ensuring reliable and low-latency data exchange.
• Event-Driven Architecture: Design and implement asynchronous, loosely coupled integrations using message brokers such as Azure Service Bus, RabbitMQ, and Kafka.
• Data Transformation: Develop high-performance transformation and mapping logic using C# and LINQ, handling JSON, XML, CSV/flat files, and Protocol Buffers (Protobuf) across integration and ETL workflows.
• Data Access: Design clean and scalable data-access layers using Entity Framework Core, working with databases such as SQL Server and PostgreSQL.
• API & Integration Security: Implement OAuth 2.0, OpenID Connect (OIDC), API Gateway policies, authentication/authorization, and end-to-end encryption across integration services.
• CI/CD & Deployment: Build and maintain automated CI/CD pipelines using Azure DevOps or GitHub Actions to enable reliable and repeatable deployments.
• Architecture & Engineering: Apply Microservices, SOA, and Event-Driven Architecture principles to build scalable, maintainable, and resilient integration solutions.
• Quality & Performance: Troubleshoot integration issues, optimize API and service performance, and ensure solutions meet production standards for reliability, security, and scalability.

Must-Have Skills

• Expert-level programming skills in C#
• Strong hands-on production experience with .NET 6 / .NET 8+ and ASP.NET Core
• Strong understanding of Microservices, SOA, and Event-Driven Architecture
• Proven experience in building and consuming REST APIs, SOAP services, Webhooks, and gRPC services
• Hands-on experience with messaging technologies such as Azure Service Bus, RabbitMQ, or Kafka
• Strong knowledge of Entity Framework Core
• Experience working with SQL Server and/or PostgreSQL
• Strong understanding of JSON, XML, CSV/flat files, Protocol Buffers (Protobuf), and data transformation
• Experience implementing OAuth 2.0, OpenID Connect, API security, and API Gateway policies
• Hands-on experience with Azure DevOps and/or GitHub Actions for CI/CD
• Strong understanding of enterprise integration patterns, asynchronous processing, error handling, logging, and monitoring

looking for chennai and pune candidates, no relocation and all

Chennai & pune

java8 + springboot + microservice + Kakfa + AWS +Unit testing

Immediate to 15days

Senior Backend Developer – Java

Location: Mohali

Experience: 5+ Years

Looking for an experienced Senior Backend Developer with strong expertise in Java, Spring Boot, and microservices development.

Key Skills Required:

• Strong proficiency in Java, Spring Boot & Microservices
• Hands-on experience with Apache Kafka and MySQL
• Expertise in REST APIs, Docker, Kubernetes & Helm
• Knowledge of JWT, OAuth2, Firebase/FCM and CI/CD pipelines
• Experience with Agile/Scrum, code reviews, and production support
• Excellent communication, problem-solving, and ownership skills

Java backend (Java + Kafka)

Bangalore

5+yrs

immediate to 15days

Java, Spring Boot, Kafka, microservice

Call or WhatsApp: 6 3 8 5 0 7 6 1 4 2

• Deployment and Integration: Develop and launch production-ready integrations, microservices, ETL pipelines, and API adapters that seamlessly embed our platform into client ecosystems, encompassing ERPs, CRMs, legacy databases, and message brokers.

About the Role

We are looking for a highly skilled Senior Java Developer with 8+ years of experience in designing, developing, and implementing enterprise-grade applications. The ideal candidate should have strong expertise in Java-based technologies along with practical experience in AI-powered applications, Generative AI, Machine Learning integrations, or AI frameworks. This role will involve working closely with cross-functional teams to build scalable, high-performance solutions leveraging modern AI technologies.

Technical Skills

• 8+ years of hands-on experience in Java development.
• Strong expertise in:
• Java 8/11/17
• Spring Boot
• Microservices Architecture
• RESTful APIs
• Hibernate/JPA
• Multithreading & Concurrency
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Solid understanding of containerization technologies such as Docker and Kubernetes.
• Experience with CI/CD pipelines and DevOps practices.

Job Description:

We are looking for experienced Java professionals with strong backend development experience to join our technology team. The ideal candidate should have hands-on experience in Java, Spring Boot, Microservices, and related backend technologies.

Key Responsibilities:

• Design, develop, and maintain scalable backend applications using Java and Spring Boot.
• Develop and integrate RESTful APIs and Microservices.
• Work with Kafka for event-driven architecture and messaging.
• Write clean, efficient, and maintainable code.
• Troubleshoot and resolve application issues.
• Collaborate with frontend, QA, DevOps, and other technical teams.
• Participate in code reviews, design discussions, and technical solutioning.
• Ensure application performance, scalability, and reliability.

Primary Skills:

• Core Java
• Spring Boot
• Microservices
• REST API
• Kafka
• SQL / Database

Good to Have:

• React.js
• Cloud technologies
• Docker / Kubernetes
• CI/CD
• Agile/Scrum experience

Location: Bangalore (Hybrid)

Experience: 10–15 Years

About the Role

At Twenty20 Systems, we are looking for a Solution Architect – Integration (Pre-Sales & Delivery) who can bridge the gap between business, technology, and client success.

This role is ideal for someone who combines strong integration architecture expertise with client-facing consulting, solutioning, and delivery leadership. You will play a key role in shaping client solutions, driving technical discussions, building scalable architectures, and ensuring successful delivery of enterprise integration programs.

This is a role for someone who enjoys owning the solution end-to-end — from pre-sales conversations to delivery execution.

What You’ll Do

• Lead solution architecture and technical consulting for enterprise integration opportunities.
• Work closely with sales, customers, and internal teams to understand requirements and design scalable integration solutions.
• Drive pre-sales activities including solutioning, technical proposals, architecture diagrams, effort estimation, and client presentations.
• Design and review API-led, event-driven, and iPaaS-based integration architectures across enterprise applications.
• Support delivery teams in ensuring architecture alignment, best practices, and successful implementation.
• Provide technical leadership across integration design, troubleshooting, governance, and production support.
• Partner with clients and internal stakeholders to solve business challenges through integration-led digital transformation.
• ​Mentor engineering teams and contribute to reusable frameworks, accelerators, and delivery playbooks.

What Your First 3 Months Will Look Like

• Understand our product, integration ecosystem, and customer requirements.
• Start leading client solution discussions and pre-sales technical conversations.
• Support ongoing delivery programs with architecture guidance and solution oversight.
• Build strong alignment across sales, product, engineering, and customer teams.

Where You’ll Be in 6 Months

• Leading end-to-end integration solutioning for key customer opportunities.
• Acting as a trusted technical advisor during both pre-sales and delivery stages.
• Driving architecture best practices and reusable integration frameworks.
• Contributing to business growth by enabling stronger technical solutioning and client confidence.

Must Have:

 Strong expertise in AEM (Adobe Experience Manager) 6.x or AEM as a Cloud Service

 Hands-on experience with AEM Sites, Assets, Templates, Components, Workflows

 Proficiency in Java, Sling, OSGi, JCR, Apache Felix

 Experience with AEM Dispatcher setup and caching strategies

 Design and implementation of scalable, secure AEM architectures

 Integration with third-party systems (e.g., REST/SOAP APIs, CRM, DAM, Analytics)

 Experience in designing and building custom AEM components and services

 Understanding of CI/CD processes and tools (e.g., Jenkins, Git, Adobe Cloud Manager)

Good to have:

 Familiarity with Adobe Experience Platform (AEP), Adobe Target, Adobe Analytics

 Knowledge of Personalization, SEO best practices, and Web Accessibility (WCAG)

 Experience with Single Sign-On (SSO), SAML, OAuth, Adobe IMS

 Knowledge of cloud platforms (e.g., Azure, AWS, GCP) and containerization

(Docker/Kubernetes)

 Exposure to front-end frameworks (React, Angular, Vue)

Roles & Responsibilities:

 Design scalable, secure, and high-performance AEM architectures (Sites, Assets, Forms, etc.)

 Define content modeling, component architecture, workflows, templates, and metadata

structures.

 Provide guidance on AEM as a Cloud Service, on-premises, or hybrid models.

 Lead architectural decisions, including dispatcher configurations, CDN integration, and

caching strategies.

 Architect integrations with third-party services (CRMs, eCommerce platforms, analytics tools,

etc.)

 Design and oversee development of custom components, servlets, OSGi services, workflows,

and Sling models.

 Work on headless CMS architecture using AEM's GraphQL and Content Fragments.

 Lead a team of developers and QA

 Provide code reviews, mentor junior team members, and conduct technical training sessions.

 Resolve technical blockers and make architectural trade-offs.

 Present architectural decisions and conduct technical workshops or demos.

 Define and manage AEM DevOps pipelines using tools like Jenkins, Git, Adobe Cloud

Manager, etc.

 Enforce code quality, performance testing, and deployment standards.

Eligibility:

 Exp – 12+ Years

 Prior experience of working and collaborating with international clients will be preferred.

 Bachelor’s degree in computer science, Engineering, or related field.