Backend Developer

Experience: 6-8 years

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. - 6-10 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.

Key Responsibilities:

●    Design, develop, and maintain high-performance, scalable, and secure backend systems using Java.

●    Build and maintain RESTful APIs and microservices to support application functionality.

●    Collaborate closely with frontend developers to ensure smooth integration with React/Angular-based frontend systems.

●    Work with both relational databases (SQL) and NoSQL databases to design data schemas, optimize queries, and maintain data integrity.

●    Leverage cloud platforms (AWS, Azure, Google Cloud) to deploy, monitor, and scale applications.

●    Implement and maintain containerization using Docker and Kubernetes (K8S).

●    Write unit tests for both backend and frontend code to ensure code quality and reliability.

●    Participate in code reviews to maintain code quality standards and mentor junior developers.

●    Contribute to a culture of continuous improvement, proposing and driving best practices in backend development, testing, and deployment.

Required Skills And Experience

●    Bachelors or Masters in computer science or related fields.

●    5+ years of experience in backend development, with strong expertise in Java (must-have).

●    Solid experience with frontend frameworks such as React or Angular.

●    Hands-on experience with RESTful APIs, Docker, and NoSQL databases (such as MongoDB, Cassandra, etc.).

●    Strong experience with SQL databases (such as MySQL, PostgreSQL, etc.), including database design, optimization, and query writing.

●    Familiarity with cloud platforms (AWS, Azure, Google Cloud) and Kubernetes (K8S).

●    Experience in writing unit tests and understanding of test-driven development (TDD) principles.

●    Strong understanding of Agile/Scrum methodologies.

Nice to Have:

●    Exposure to Automation Testing Frameworks (e.g., Selenium, Cypress).

●    Experience working in a SaaS (Software as a Service) environment.

●    Knowledge of Agile/Scrum methodologies.

Job description

🔧 Key Responsibilities:

• Design and implement robust backend services using Node.js.
• Develop and maintain RESTful APIs to support front-end applications and third-party integrations
• Manage and optimize SQL/NoSQL databases (e.g., PostgreSQL, MongoDB, Snowflake)
• Collaborate with front-end developers to ensure seamless integration and data flow
• Implement caching, logging, and monitoring strategies for performance and reliability
• Ensure application security, scalability, and maintainability
• Participate in code reviews, architecture discussions, and agile ceremonies

✅ Required Skills:

• Proficiency in backend programming languages (Node.js, Java, .NET Core)
• Experience with API development and tools like Postman, Swagger
• Strong understanding of database design and query optimization
• Familiarity with microservices architecture and containerization (Docker, Kubernetes)
• Knowledge of cloud platforms (Azure, AWS) and CI/CD pipelines.

Required Skills and Experience:

Proficient in Java (Java 8 and above), with a strong understanding of object-oriented programming.

Knowledge in the trading domain, including familiarity with trading systems and protocols.

Strong skills in SQL and PL/SQL for database management and query optimization.

Hands-on experience with Linux and Windows operating systems for application deployment and maintenance.

Proficiency in scripting languages (e.g., Bash, PowerShell, or similar).

Knowledge of Python programming for auxiliary development and analytics tasks.

Familiarity with multithreading, concurrency, and low-latency application development.

Experience with CI/CD pipelines, version control systems (e.g., Git), and deployment workflows.

Requirement:

• Min 2-3 Year Experience. Preferably in the E-commerce domain. 
• Proficient with both MySQL and NoSql Databases (Elastic, Mongo)
• Strong hold on PHP and preferably good knowledge of Python
• Experience with JavaScript/JQuery
• Ability to do software design for a enterprise web application
• Working knowledge of a MVC front-end framework
• Proficient in HTTP protocol, REST APIs, JSON
• Ability to do database design and modeling
• Proficient in OOPS concepts and writing code using classes
• Ability to write modular and clean code

Role:

• Software Development of various product line 
• Creation web-services and optimization for existing and new feature rollouts
• Collaborate with Product Managers and design solutions 
• Develop very high sense of ownership, the zeal to build scalable applications
• Build customer facing technology product 
• Individual Contributor

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.