Senior Backend Engineer

JOB DESCRIPTION

Experience: 3-8 years

Location- Mumbai

Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 3-8 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.

Roles & Responsibilities :

• 1-2 years of hands-on experience in backend development with Java & Spring Boot.
• Build scalable and modular microservices for business-critical applications.
• Implement RESTful APIs and ensure high performance and responsiveness.
• Proficient with SQL databases (MySQL etc) Troubleshoot production issues and improve system reliability and scalability.

Description 

Our Software Architects are the strategic thinkers and technical leaders. They design, validate, and guide the delivery of enterprise-grade systems that balance innovation, performance, scalability, and cost efficiency. 

 Software Architects work at the intersection of business strategy and technical execution. They collaborate across engineering, product, and design teams to define architecture blueprints, select technologies, and ensure systems evolve in alignment with customer goals. Architects are hands-on, often prototyping solutions and coaching teams, while also trusted to influence executives on technical direction. Here’s what you should know if you want to be a Software Architect at 

Requirements 

The ideal person 

● Proven track record in architecting and delivering large-scale, distributed software systems. 

● Expertise in modern architectural patterns: microservices, event-driven systems, composable commerce, headless architectures. 

● Ability to translate business strategy into actionable technical roadmaps and system designs. 

● Strong leadership skills: guiding engineering teams, mentoring individuals, and setting technical standards. 

● Excellent stakeholder management and communication skills, from engineers to C level. 

● Commitment to designing systems that are secure, performant, and cost-efficient.

Desirable Skills 

● Deep experience with multiple programming languages and frameworks (e.g., ● JavaScript/TypeScript, Node.js, React, Java, .NET, Python). 

● Strong knowledge of cloud-native architectures (AWS, GCP, Azure) and containerisation (Docker, Kubernetes). 

● Experience with data platforms, integration patterns, and API-first design (REST, GraphQL, gRPC). 

● Familiarity with CI/CD, DevOps, and Infrastructure-as-Code practices. ● Understanding of security standards, compliance (GDPR, SOC2), and enterprise IT constraints. 

● Ability to design for scalability across global markets and multi-tenant environments. ● Strong knowledge of design systems and front-end frameworks, ensuring alignment between presentation and infrastructure. 

● Experience leading architectural reviews, trade-off analysis, and decision records. ● Ability to mentor teams and establish communities of practice around architecture. ● Awareness of emerging technologies (AI, serverless, edge computing) and their practical application. 

On any given day you might 

● Define architecture blueprints and technical roadmaps for enterprise projects. ● Partner with product owners and business stakeholders to align architecture with strategic goals. 

● Make key technology selection decisions, balancing innovation with long-term maintainability. 

● Review system designs, ensuring alignment with principles of security, scalability, and performance. 

● Support engineering teams with hands-on prototyping and technical problem solving. ● Facilitate architectural reviews and communicate trade-offs to both technical and non-technical audiences. 

● Collaborate with designers to ensure UI/UX and architecture integrate seamlessly. ● Influence enterprise customers, helping them modernise platforms and adopt composable, headless, or cloud-native approaches. 

● Establish coding standards, architectural patterns, and governance processes. ● Share thought leadership internally and externally, positioning Co. as a trusted Advisor.

You bring 

● 7+ years of software development and architecture experience. 

● Expertise in designing cloud-native, distributed systems. 

● Proven success in leading technical decisions across multi-team programmes. ● Strong cross-functional collaboration and customer-facing skills. 

● Advanced understanding of system integration, security, and performance optimisation. 

● Familiarity with enterprise-scale delivery: migration projects, composable commerce, API ecosystems. 

● Advanced English, able to communicate at both executive and engineering levels. ● (Bonus) Experience contributing to open-source, publishing architectural thought pieces, or speaking at conferences.

A backend developer is an engineer who can handle all the work of databases, servers,

systems engineering, and clients. Depending on the project, what customers need may

be a mobile stack, a Web stack, or a native application stack.

You will be responsible for:

 Build reusable code and libraries for future use.

 Own & build new modules/features end-to-end independently.

 Collaborate with other team members and stakeholders.

Required Skills :

 Thorough understanding of Node.js and Typescript.

 Excellence in at least one framework like strongloop loopback, express.js, sail.js, etc.

 Basic architectural understanding of modern day web applications

 Diligence for coding standards

 Must be good with git and git workflow

 Experience of external integrations is a plus

 Working knowledge of AWS or GCP or Azure - Expertise with linux based systems

 Experience with CI/CD tools like jenkins is a plus.

 Experience with testing and automation frameworks.

 Extensive understanding of RDBMS systems

Overview of the role

As a Node Developer you will be collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high-quality web applications and services by writing clean and modular code.

Must have skills

• Overall 3-5 Years of experience in writing unit and integration tests to ensure the robustness and reliability of web applications and services.
• Measure and improve the performance of microservices. Catalyse growth within the team through code reviews and pair programming to maintain high development standards
• Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
• Expert level of experience in the design and development of Web Applications, and highly scalable distributed systems.
• Should have experience in development skills using the latest technologies including NodeJS(fastify framework), Microservices, PostgreSQL, Redis, etc. Should have exposure to NoSQL and SQL development.
• Comprehensive knowledge of physical and logical data modeling, and performance tuning.
• Should possess excellent communication, presentation, and interpersonal skills.
• Ability to work collaboratively and productively with globally dispersed teams.
• Build high-performance teams and Coach teams for successful career growth.
• Experience working with relational and non-relational databases, query optimization, and designing schema

Desired Background

Bachelors/Masters Degree in Computer Science, Information Technology

Requirements:

 Strong development skills in Core / Advanced Java, and J2EE.

 Knowledge of Bamboo, Jira, Spring AOP, Junit, SQL query optimization and fine tuning, is a

plus.

 Strong analytical skills.

 Good in Design Patterns.

 Should have experience on JMS/Messaging and middleware like IBM MQ/Apache Kafka.

 Strong in design and technical documentation.

 Strong in Java SDK 1.8, Java SDK 11, Spring Boot (Embedded Tomcat), REST & SOAP API skills.

 Strong in Spring frameworks (MVC, IOC, Boot, Batch) and ORM framework like Hibernate.

 Hands-on experience in SQL.

 Core Java, J2EE, SOA based Web Services, RESTful Web Services, Hibernate, Spring MVC,

XSD, XML and WSDL, DB, Microservices.

 Understanding of Kafka and Netflix conductor.

 Should have worked with Maven/Gradle, JIRA/Rally, Bamboo/Jenkins/Hudson.

 Extensive development experience with Web Services (SOAP and REST).

• 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