Software Developer (Python tier 1 college only

JOB DESCRIPTION

Experience: 4-7 years

Location: Bangalore

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. - 4-7 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.

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

Role: Core infrastructure for two global applications.

Key responsibilities:

Heavy Data Lifting: Designing and maintaining complex MongoDB aggregation pipelines and executing high-volume bulk updates.

Systems Connectivity: Managing the lifecycle of Bridges, WebSockets, and REST APIs for global traffic.

Global Reliability: Troubleshooting performance regressions, managing SSL/TLS certificates, and optimizing AWS S3/EC2 resources.

Core Logic: Implementing server-side push notifications, custom payment flows, and background Cron orchestration.

Requirements (Must Have)

Production Experience: Proven experience managing backend services for live, high-traffic applications. (Must have)

Note: Learning projects, bootcamps, and online courses will not be considered.

Python Mastery: Expert-level proficiency in backend Python development. (Must have)

MongoDB Expertise: Deep knowledge of Aggregations and Bulk operations. (Must have)

AWS Proficiency: Direct experience with S3 and EC2 in a production setting. (Must have)

Infrastructure Logic: Ability to manage SSL/Encryption and optimize resource allocation (Cron vs. API). (Must have)

• 2+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Backend/Fullstack Developer

About the Company:

Company is India’s largest and best-established digital wealth management service that helps its customers create wealth for their long-and-short-term goals. Founded in 2012, Company is a pioneer in the digital financial services category and is recognised for creating simple and elegant user experiences in a complex domain. We do this by simplifying complex investing concepts and automating best practices, so our customers can grow their wealth without worry. We achieve this by combining cutting-edge technology, data-driven algorithms, awesome UX and friendly customer support. Our task is ambitious and we like to work hard as well as smart. We want to build a team that relishes challenges and contributes to a new way of thinking and investing in India. We are also invested in the growth of our colleagues and providing a supportive and thriving working environment for everyone. We have been recognised by Great Place To Work® as one of India’s best companies to work for.

Role specific info:

• 4-12 years of experience building good quality production software
• Excellent knowledge of at least one ecosystem based on Elixir/Phoenix, Ruby/Rails, Python/Django, Go/Scala/Clojure
• Good OO skills, including strong design patterns knowledge
• Familiar with datastores like MySQL, PostgreSQL, Redis, Redshift etc.
• Familiarity with react.js/react-native, vue.js etc. • Knowledge of deploying software to AWS, GCP, Azure
• Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)

What would you do here:

• Writing quality code using language best practices.
• Working in a highly collaborative team.
• Building good software using the latest tools and techniques.
• Participating in design reviews, coding modules, code reviews and unit testing.
• Taking ownership of quality and usability of your code.
• Mentoring co-workers.
• Leading efforts in improving technology architecture.

At JFrog, we’re reinventing DevOps to help the world’s greatest companies innovate -- and we want you along for the ride. This is a special place with a unique combination of brilliance, spirit and just all-around great people. Here, if you’re willing to do more, your career can take off. And since software plays a central role in everyone’s lives, you’ll be part of an important mission. Thousands of customers, including the majority of the Fortune 100, trust JFrog to manage, accelerate, and secure their software delivery from code to production -- a concept we call “liquid software.” Wouldn't it be amazing if you could join us in our journey?

We are looking for an experienced, hands-on developer to join an innovative and talented R&D team, responsible for delivering fast and high quality code, using the latest frameworks and technologies.

• Be responsible for all development aspects form design to production of a wide hybrid/ cloud naitive product 
• Write high quality, testable and efficient code in Java and Go
• Initiate and promote new ideas for continuous improvement of the product functionality
• Work closely with other team members as well as mentoring new team members

• 5+ years of software development experience
• Proven deep knowledge of Java or Go
• Deep understanding of relational databases, concurrent programming and performance tuning
• Vast experience with large scale production environments 
• Experience with micro services architecture, multithreading
• Familiarity with Cloud infrastructure, Docker, Kubernetes & CI/CD
• Disciplined approach to testing and quality assurance