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Ingrainhub is a tech consulting company by Ex Flipkart Engineers working with Tier 1 companies building the best Product Suites
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Job Title: Senior Java Developer – Multi-SaaS / Microservices / Pub-Sub
About the Role
We are seeking a highly skilled Senior Java Developer with strong leadership abilities to join our team. The ideal candidate will have deep expertise in Java, micro services architecture, multi-tenant SaaS systems, pub/sub messaging, and cloud-based deployments on AWS EKS. This role requires not only technical mastery but also the ability to mentor teams, influence architecture decisions, and ensure best practices through Test-Driven Development (TDD).
Key Responsibilities
- Lead design and development of Java-based multi-tenant SaaS applications using microservices architecture.
- Implement pub/sub messaging systems for event-driven communication.
- Deploy, monitor, and optimize services on AWS EKS.
- Ensure system reliability, scalability, and security using AWS CloudWatch and other observability tools.
- Apply TDD principles to drive high-quality, maintainable code.
- Collaborate with product managers, architects, and other developers to translate requirements into technical solutions.
- Lead code reviews, mentor junior engineers, and promote engineering best practices.
- Take ownership of end-to-end delivery, from architecture design to production rollout.
Required Skills & Qualifications
- Proficiency in Java with 6+ years of professional development experience.
- Strong background in microservices architecture and multi-tenant SaaS systems.
- Expertise in pub/sub messaging patterns (e.g., Kafka, RabbitMQ, or AWS SNS/SQS).
- Hands-on experience with AWS EKS and container orchestration (Kubernetes).
- Strong understanding of monitoring and logging using AWS CloudWatch or similar tools.
- Proven experience applying Test-Driven Development (TDD) in real-world projects.
- Demonstrated leadership skills – mentoring, decision-making, and driving engineering excellence.
- Solid understanding of software engineering best practices, CI/CD, and version control (Git).
Responsibilities:
- Good understanding of programming language
- Concepts of Java, Maven
- Source Control
- Logically Strong in coding practices
- Data structure Understanding.
- Security encryption and decryption
- Data encoding decoding
Requirements:
- Strong core Java development skills.
- Exposure to security tools.
- Experience in working with customers, understanding business requirements
- Good analytical and troubleshooting skills.
- Working knowledge of Jenkins/Maven
- Key requirements: Core Java, CI/CD, Docker, Maven, Jenkins, REST API, Kafka, Redis, cache, elastic cache
Zumen is a Cloud-based Source-to-Pay software for product manufacturing companies.Zumen enables product manufacturing companies to digitize their direct sourcing and procurement, and manage every detail of the process in a transparent, collaborative platform. With Zumen’s part life cycle management, BOM interface, supplier base visibility and product cost management, companies can build an agile, resilient supply chain and get their products to market faster. Zumen is headquartered in Delaware, USA
Responsibilities:
- Develop features and modules independently based on the overall product architecture provided.
- Research and find solutions to challenging new problems; align with technology needs of the future.
- Fully grasp the product concept and think through challenging customer variations and use cases.
- Proactively seek to identify issues and resolve them at the stages of design, deployment and QA.
- Maintain quality and ensure responsiveness of applications.
- Demonstrate a strong sense of milestone-based performance and adherence to overall development timelines.
Requirements:
Experience - 2 to 5 years experience in Java Tech stack
- Strong hands-on experience in Java, Spring Boot, microservices and Rest API.
- Good understanding of general data privacy and information security.
- Exposure to cloud securities for SAAS application development would be an added advantage.
- A good understanding of all facets of building and delivering data-centric products is desirable.
- Knowledge of code versioning tools.
- HTML/CSS/ES6 Javascript, Java 8 and any Java based web framework
- Adobe experience Manager (AEM) Apache Sling, JCR, OSGI
- Good knowledge in Apache Sling framework
- Good knowledge in Java content repository API
- Good knowledge in Apache Jack rabbbit framework
- Knowledge of OSGI and Declarative Services
- Strong understanding of REST Principles and Hands on experience REST based API development
- Knowledge of Patterns and good practices to design and develop quality and clean code
- Experience in Pair programming and code reviews
- Experience with testing at all levels unit, integration, functional and performance
- Experience in Agile Project (Scrum or SAFe) execution is a must
- Familiarity with git, basic git branching strategies, working in a peer-reviewed environment,able to code to existing patterns/styles
- Familiarity with task management, bug tracking and wiki-based documentation tools like Jiraand confluence
- AEM BE developers must have modern ES6 javascript experience as well as java developer experience
- Must be comfortable working with AEM workflows, scheduled jobs, creating/modifying jcr
- nodes via java code, and accessing REST endpoints via java code
- Ability to create custom AEM CQ components and a good exposure to both core and
- foundation components that can be inherited in AEM
- Good understanding of AEM web development framework using Apache Sling
- Create multiple OSGI Bundles in the AEM stack based on the requirements of the Project
You, as a Java Engineer and member of this team, would be working on our new and existing projects for our credit, payments, business services, member engagement or financial crime areas. We have a five years roadmap ahead of us with exciting new features and we’ll need you to solve interesting problems. Your fellow team members will get you up to speed in your business area and will help you develop the skills so that eventually you are the one coaching other new joiners. Joining one of our expanding agile teams, you will be required to work closely with product owners, mobile engineers, and other business members to translate requirements into well-engineered solutions.
You will ideally join our backend Community of Practices, learn from them and eventually propose your own to maintain a high quality across the backend. Career progression is as important to you as it is for us. With our expanding teams and business we will encourage you to outgrow your initial responsibilities. This role offers an exceptional opportunity to make a real difference with responsibilities across engineering practices in a rapidly expanding company!
About the Tech
Technology and our people is what makes Tide possible. We work in autonomous teams where backend, iOS, Android, web, QA, DevOps, agile coaches, data experts and product owners solve difficult problems together to get the job done. We self-organise and discuss technical challenges and set our own guidelines in the different Community of Practices.
On the backend we see Java 8 as legacy and use Java 11+ for our micro-services. We provide RESTful APIs to our colleagues in the frontend, but also use gRPC for internal service-to-service communications. Spring Boot is our work horse, but we are open to new experiments. We are cloud-native and run everything on AWS. You’ll see containers (Docker), queues (SNS+SQS) and events everywhere. The nature of our business naturally fits with relational databases, but we have also found some use cases for NoSQL.
Our frontends have done an incredible job at consuming our APIs and providing the best UX to our members. They are fully native Android and iOS apps or Angular 2+ web apps. DevOps provides vital infrastructure and operations support.
About You
We’re an international scale up, we’re busy! If fast paced environments, cross team exposure, inquisitive freedom and the ability to have a real impact on a rapidly growing scale up appeals to you, then you already have the mind of a Tidean. If you have that along with the following experience, we’d love to hear from you.
The non-negotiables:
- Good commercial experience building server-side applications and detailed knowledge of the relevant programming languages for your stack (i.e Java 8 or newer).
- Sound knowledge of a Java backend framework (e.g. Spring/Spring Boot).
- Exposure to microservices and implementing and consuming RESTful APIs.
- A mindset of delivering secure, well-tested and well-documented software.
- Experience with relational databases.
The highly desirables:
- Exposure to continuous integration, delivery and deployment.
- Some experience integrating to third parties.
- Comfortable working in agile methodologies, ideally Scrum.
- Exposure to common development tools such as IntelliJ, Git, Jira, etc.
Why Tide?
Tide is the leading provider of UK SME business accounts and one of the fastest growing FinTechs in the UK. That’s not an unfounded boast - we have over 200,000 members (what we like to call our customers, over two percent market share, and have raised over £120m in funding.
SMEs have been underserved and overlooked by traditional banks for years. In an entrepreneurial age where everyone is expected to take a shot, traditional banks have not evolved with the needs of the market. That’s where Tide comes in. With quick on-boarding, low fees and innovative features, we thrive on making data driven decisions to help SMEs save both time and money.
We’re also one of LinkedIn’s top 10 hottest UK companies to work for, winner of Best Use of Technology (Growth Finance Awards); Best Banking Provider (Contracting Awards); Innovative Product of the Year (Growth Finance Awards) and we’re listed in the Top 100 FinTech Disruptors and The Startups 100. And that’s just for 2019.
- Java / J2ee Development environments
- Eclipse or similar tooling
- Very Strong Web front end development including JavaScript, Angular, React, etc.
- Develop REST based microservices using Spring, SpringBoot, SpringCloud, SpringListener, SpringMVC, JavaScript, HTML, XML, JUNITS Cloud, container image development and container orchestration
Skills Required:
- Angular, Spring Springboot, SQL Server
Experience Preferred:
- Looking for a full stack developer with Strong Front end experience, Spring Springboot, SQL Server, GCP
About the job
We focus on client adoption of disruptive technologies, technology architecture and providing specialized skills related to integration, custom software engineering, testing, application modernization, agile and more. We help our clients with the most complex projects including working in open web platforms, DevOps platforms as well as intelligent Computing and Architecture enhancement.
We are looking for hands on, smart thinking Applications developer to join our fast-growing team of talented professionals. You will have the opportunity to work on large enterprise solutions and deliver solutions that deliver business performance for our customers.
WORK YOU’LL DO
- Design and develop microservices/APIs using either Java/Spring boot, ISTIO, Kubernetes, Docker, CI / CD Pipelines
- You would scale micro services using Kafka or similar messaging systems.
- Collaborate with clients, architects, and application architectures to understand the operational objectives and purpose of the future system integration.
- Understand the points of integration between the different systems and highlight the potential risks associated with the delivery of solutions
- Collaborate with Functional Designers and Developers in order to find best solutions
- Produce detailed functional and technical specifications.
- Assist in producing solutions with threat assessments and associated security awareness.
WHAT WE ARE LOOKING FOR
- 5- 8 years of hands-on experience designing and developing microservices using either Java/Spring Boot
- 3-5 years of experience with system integration
- Minimum of 3 years of relevant experience with API concepts and technologies such as REST, JSON, XML, SOAP, YAML, GraphQL, and Swagger
- Experience developing within agile methodology using CI/CD pipeline
- Experienced in 3-tier, n-tier, cloud computing, microservices architectures and SOA.
- Good knowledge of integration architectures
- Experience supporting and/or implementing complex integration projects
- Excellent client management skills
- Experience with Data modelling would be an asset
QUALIFICATIONS
- Experience of working in an Agile Environment
- Ability to drive design from Stories and Requirements
- Adept at UML, Design Patterns, Reusable Services Development,
- Knowledge on Scaling Microservices
• Opportunity to develop game-changing, globally distributed, internet advertising products used by millions worldwide.
• Contribute hands-on, own, collaborate, and deliver new features and services at a fast pace.
• Build platforms, frameworks, APIs, libraries & automated tools to facilitate rapid issue
resolution and development & deployment of new features and changes.
• Own the prioritization, scoping and scheduling processes for new products and features.
• Work with and advise management on technical aspects, make well-informed decisions.
• Improve processes, technology & the applications you own continuously by showing the team better ways of doing things and help improve skills in the team.
• Prioritize tech-debt and ensure the platforms and applications meet the latest industry
standards.
• Learn new technology & practices, coach the team and conduct training sessions – devote time for learning and continuous improvement of self and team.
• Imbibe and maintain a strong customer service-oriented attitude while designing and building products.
Who should apply for this role ?
• 5 - 9 years of experience in building or managing large scale distributed systems
• BS/MS degree in Computer Science or other relevant majors
• A track record of working on scalable applications, preferably at a major internet property or well-known startup
• Good grasp on programming fundamentals including OOP, Design Principles and Data Structures
• Excellent analytical, logical, and problem-solving skills
• Solid knowledge of Java/Python/Golang, web services (REST/JSON), NoSql Databases,
Kafka/Kinesis/Spark, Elasticsearch/Solr/Kibana
• Can exhibit passion and enthusiasm for remarkable technology (Knowledge and contribution to open source projects, Active Blog, etc. is a plus)
• Ability to learn emerging technical/business standards and apply/coach development team in proper adoption
• Deep understanding of development processes and has personally contributed to critical
product cycles
• Communicate effectively & cross-functionally with other teams








