Senior Software Engineer Backend

JOB DESCRIPTION-

Exp - 5 to 8yrs 

Job Summary

We are looking for a highly skilled and motivated Senior Software Engineer with strong expertise in Java (primary) and working knowledge of Python. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend systems, while contributing to high-quality software delivery across the full development lifecycle.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and high-performance applications using Java (Spring Boot / Microservices architecture)
• Develop reusable components and APIs with a focus on performance, security, and scalability
• Leverage Python for automation, scripting, data processing, or ML-related use cases (as applicable)
• Collaborate with cross-functional teams including Product, QA, DevOps, and Architecture
• Participate in system design discussions and contribute to technical decision-making
• Write clean, efficient, and well-documented code following coding standards and best practices
• Optimize applications for maximum speed and scalability
• Troubleshoot and debug complex production issues
• Contribute to CI/CD pipelines and DevOps practices
• Mentor junior engineers and perform code reviews

Required Skills & Qualifications

Technical Skills

• Strong hands-on experience in Core Java, Spring Boot, and Microservices architecture
• Solid understanding of RESTful APIs, multithreading, concurrency, and JVM performance tuning
• Practical experience with Python (automation, scripting, or backend development)
• Experience with databases: SQL (MySQL, PostgreSQL) and/or NoSQL (MongoDB, Cassandra)
• Familiarity with cloud platforms (AWS, Azure, or GCP)
• Strong knowledge of data structures, algorithms, and system design
• Experience with message brokers (Kafka, RabbitMQ)
• Exposure to containerization & orchestration (Docker, Kubernetes)
• Experience with version control systems (Git)

Preferred Skills

• Experience in distributed systems and event-driven architectures
• Knowledge of Python frameworks (Flask, FastAPI, Django)
• Exposure to big data technologies (Spark, Hadoop) or ML workflows
• Experience with CI/CD tools (Jenkins, GitHub Actions, etc.)
• Familiarity with observability tools (Prometheus, Grafana, ELK stack)

Soft Skills

• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Ability to work in a fast-paced agile environment
• Proactive ownership and accountability

Experience: 3 to 5

Location: Bangalore

Wissen Technology is now hiring for a Senior 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. - 3 to 5 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 Us:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.

Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. 

We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. 

Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Website : www.wissen.com 

Job Title: Java Developer 

Experience: 4 –10 Years 

Location: Mumbai / Bangalore 

Employment Type: Full-time 

We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.

 • 3–10 years of hands-on experience in Java (8 or above) development. 

 • Strong foundation in OOPs, data structures, algorithms, and design patterns.

 • Deep understanding of multithreading, concurrency, and synchronization techniques.

 • Experience with Spring Boot, Spring MVC, JPA/Hibernate. 

 • Good working knowledge of RESTful API development. 

 • Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.

 • Familiarity with Git, Maven/Gradle, and CI/CD pipelines. 

 • Exposure to Agile/Scrum methodology

Job Summary:

As a Shopify App Developer at [Your Company Name], you will be responsible for designing, developing, and maintaining custom applications for the Shopify platform. You will collaborate with cross-functional teams to create solutions that meet our clients' needs and improve their eCommerce operations. The ideal candidate will have a strong background in Shopify app development, excellent problem-solving skills, and a passion for delivering exceptional user experiences.

Key Responsibilities:

• App Development: Design, develop, and deploy custom Shopify apps using Shopify’s API, Polaris, and other relevant technologies.
• Customization: Customize and extend Shopify’s existing functionalities to meet specific client requirements.
• Integration: Integrate Shopify apps with third-party services, APIs, and data sources as needed.
• Maintenance & Support: Troubleshoot and resolve issues related to Shopify apps and provide ongoing support and maintenance.
• Collaboration: Work closely with project managers, designers, and other developers to ensure that app solutions align with project goals and client expectations.
• Testing & Quality Assurance: Conduct thorough testing of applications to ensure reliability, performance, and adherence to Shopify’s standards.
• Documentation: Create and maintain clear documentation for code, processes, and app functionality.
• Innovation: Stay updated with the latest Shopify developments, industry trends, and best practices to continuously improve app functionality and user experience.

Qualifications:

• Experience: Proven experience in developing Shopify apps, including a portfolio of past projects or apps.
• Technical Skills: Proficiency in Shopify’s APIs, Liquid templating language, JavaScript, HTML, CSS, and familiarity with Shopify Polaris design system.
• Programming Languages: Strong knowledge of backend programming languages such as Ruby, PHP, or Node.js.
• Database Management: Experience with database technologies such as MySQL, MongoDB, or PostgreSQL.
• Problem-Solving: Excellent problem-solving skills with the ability to troubleshoot and resolve complex technical issues.
• Communication: Strong verbal and written communication skills, with the ability to explain technical concepts to non-technical stakeholders.
• Team Player: Ability to work effectively both independently and as part of a team in a fast-paced environment.

Job Role:

As a senior R&D Java Engineer, you will work in a highly collaborative, dynamic environment. Your work will impact a lot to make world bit safer place. You’ll design creative solutions to problems faced by companies due to cyber attacks. You will work closely with other partners such as product and pre-sales managers, UI developers, and other software engineers to develop new product offerings and improve the efficiency of the solution.

Responsibilities:

• Develop, modify, and implement, the software components of Nimesa Product.
• Assist QA Engineers with the creation and review of the test cases
• Write junits and test automation if anything required to have the coverage
• Assist other Engineers with the creation of detailed software design specifications.
• Keep an eye out for technology trends, and open-source projects that can be used.

Requirements:

• Bachelor's or Master's degree in computer science or relevant fields.
• At least 3+ years experience in end-end software development for large design and coordinating project teams in the SaaS industry.
• Software development experience with Java and Spring / Springboot, RabbitMQ, MYSQL etc
• Must have worked on fairly complex products from scratch
• Strong knowledge of data structure, multithreading and other comp science concepts (SQL or NoSQL)
• Excellent social and communication skills
• Demonstrated expertise in building Web Applications, Enterprise Applications, Web Services, and Management at scale is a requirement.
• Experience with Design patterns
• Knowledge of cloud-based architectures, deployment and operational aspects of Amazon Web Services cloud

• Experience 4 – 5 years
• Good in Backend Springboot
• write Rest API (Should be strong in this area)
• Good Analytical ability, Good coding practice, Knowledge of Spring Security (Desirable),
• UI Knowledge of Angular (Average knowledge should be enough)

• Developing front-end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

• Degree in computer science.
• Strong organizational and project management skills.
• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks React.js.
• Proficiency with Ruby on Rails
• Familiarity with database technology such as MySQL or Oracle or PostgreSQL.
• Excellent verbal communication skills.
• Good problem-solving skills.
• Attention to detail.

• 5 working days
• Flexible timings
• Work from home granted

• Bachelor’s or master’s degree in Computer Engineering, Computer Science, Computer Applications, Mathematics, Statistics, or related technical field. Relevant experience of at least 3 years in lieu of above if from a different stream of education.

• Well-versed in and 3+ hands-on demonstrable experience with: ▪ Stream & Batch Big Data Pipeline Processing using Apache Spark and/or Apache Flink.
  ▪ Distributed Cloud Native Computing including Server less Functions
  ▪ Relational, Object Store, Document, Graph, etc. Database Design & Implementation
  ▪ Micro services Architecture, API Modeling, Design, & Programming

• 3+ years of hands-on development experience in Apache Spark using Scala and/or Java.

• Ability to write executable code for Services using Spark RDD, Spark SQL, Structured Streaming, Spark MLLib, etc. with deep technical understanding of Spark Processing Framework.

• In-depth knowledge of standard programming languages such as Scala and/or Java.

• 3+ years of hands-on development experience in one or more libraries & frameworks such as Apache Kafka, Akka, Apache Storm, Apache Nifi, Zookeeper, Hadoop ecosystem (i.e., HDFS, YARN, MapReduce, Oozie & Hive), etc.; extra points if you can demonstrate your knowledge with working examples.

• 3+ years of hands-on development experience in one or more Relational and NoSQL datastores such as PostgreSQL, Cassandra, HBase, MongoDB, DynamoDB, Elastic Search, Neo4J, etc.

• Practical knowledge of distributed systems involving partitioning, bucketing, CAP theorem, replication, horizontal scaling, etc.

• Passion for distilling large volumes of data, analyze performance, scalability, and capacity performance issues in Big Data Platforms.

• Ability to clearly distinguish system and Spark Job performances and perform spark performance tuning and resource optimization.

• Perform benchmarking/stress tests and document the best practices for different applications.

• Proactively work with tenants on improving the overall performance and ensure the system is resilient, and scalable.

• Good understanding of Virtualization & Containerization; must demonstrate experience in technologies such as Kubernetes, Istio, Docker, OpenShift, Anthos, Oracle VirtualBox, Vagrant, etc.

• Well-versed with demonstrable working experience with API Management, API Gateway, Service Mesh, Identity & Access Management, Data Protection & Encryption.

  Hands-on experience with demonstrable working experience with DevOps tools and platforms viz., Jira, GIT, Jenkins, Code Quality & Security Plugins, Maven, Artifactory, Terraform, Ansible/Chef/Puppet, Spinnaker, etc.

• Well-versed in AWS and/or Azure or and/or Google Cloud; must demonstrate experience in at least FIVE (5) services offered under AWS and/or Azure or and/or Google Cloud in any categories: Compute or Storage, Database, Networking & Content Delivery, Management & Governance, Analytics, Security, Identity, & Compliance (or) equivalent demonstrable Cloud Platform experience.

• Good understanding of Storage, Networks and Storage Networking basics which will enable you to work in a Cloud environment.

• Good understanding of Network, Data, and Application Security basics which will enable you to work in a Cloud as well as Business Applications / API services environment.