Backend Developer - Freelancer

We are a dynamic and innovative technology company dedicated to delivering cutting-edge solutions that empower businesses and individuals. As we continue to grow and expand our offerings, we are seeking a coding fanatic, who is interested in working on and learning new technologies. 

Position - Backend developer 

Job type - Freelance or on contract 

Location - Remote 

Roles and Responsibilities:

• Plan,create and test REST APIs for back-end services such as authentication and authorization.
• Deploy and maintain backend systems on the cloud.
• Research and develop solutions for real life business problems.
• Creating and maintaining our apps' essential business logic, providing correct data processing and flawless user experiences.
• Database design, implementation, and management, including schema design, query optimisation and data integrity.
• Participating in code reviews, providing constructive input, and ensuring that code quality standards are met.
• Keep abreast of industry developments and best practices to bring new solutions to our initiatives.

Required skills and experience - 

Must have skills : -

• Bachelor’s degree in computer programming, computer science, or a related field.
• 3 + years of experience in backend development.
• Proficient in Python,Mongodb,postgres/sql,Django and Flask
• Knowledge on nginx.
• C++/C +Cython for creating python modules
• Knowledge on Redis
• Familiarity with using AI provider apis and prompt engineering
• Experience in working with linux based instances on the cloud.
• Strong problem solving and verbal and written communication skills.
• Ability to work independently or with a group.

Good to have skills :- 

• Experience in node.js and Java 
• AWS and Google cloud knowledge.

Role : Java Developer

Location : Bangalore

Key responsibilities

• Experience – 3 to 8 years of experience.
• 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 Wissen Technology:

The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.

Our workforce consists of highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments. Globally present with offices US, India, UK, Australia, Mexico, and Canada.

We offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a Great Place to Work® company for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.

The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients. We have served clients across sectors like Banking, Ecommerce, Telecom, Healthcare, Manufacturing, and Energy.

Career Progression:

At Wissen Technology, your career growth is important for us. Therefore, we put in several efforts towards each employee’s career progression – to enable and empower them to grow within the company as well as to instill a sense of responsibility, loyalty, and trust.

There have been instances where a software engineer has grown from being an individual contributor to technical lead and now on the path to becoming a director responsible for growing revenues and profitability. We deeply value Ownership: taking responsibility, making it happen, not letting the ball drop, and being accountable.

Responsibilities:

● Design and build scalable APIs and microservices in Node.js (or equivalent backend frameworks).

● Develop and optimize high-performance systems handling large-scale data and concurrent users.

● Ensure system security, reliability, and fault tolerance.

● Collaborate closely with product managers, designers, and frontend engineers for seamless delivery.

● Write clean, maintainable, and well-documented code with a focus on best practices.

● Contribute to architectural decisions, technology choices, and overall system design.

● Monitor, debug, and continuously improve backend performance.

● Stay updated with modern backend technologies and bring innovation into the product.

Desired Qualifications & Skillset:

● 2+ years of professional backend development experience.

● Proficiency with Node.js, Express.js, or similar frameworks.

● Strong knowledge of web application architecture, databases (SQL/NoSQL), and caching strategies.

● Experience with cloud platforms (AWS/GCP/Azure), CI/CD pipelines, and containerization (Docker/Kubernetes) is a plus.

● Ability to break down complex problems into scalable solutions.

● Strong logical aptitude, quick learning ability, and a proactive mindset

Responsibilities :

• Lead the development of the backend systems for our client's first product.
• Build reliable, secure, and performant backend systems.
• Drive test coverage and continuous delivery automation within the team.
• Mentor and provide feedback to teammates.
• You should have a min of 8 years of software development experience and management.
• Can write code that is readable, maintainable, secure, and performant.
• Know the importance of tests and how to approach writing different types of tests, good intuition for REST API design
• Deep understanding of relational databases, transactions, entity-relationship modeling.
• Comfortable writing highly concurrent systems.
• Experienced in using profilers, tuning garbage collection, optimizing SQL queries.

• Golang, Java, Python, Ruby, Node.

Looking candidated from service base or service division of any company.
Minimum Qualification​:

• Hands-on working on Java ( {Language understanding - Java 8, Lambdas, Collections, popular frameworks & libraries}, JVM, GC tuning, performance tuning)
• Worked on REST frameworks/libraries like Spring MVC, Spring Boot, Dropwizard, REST Express etc
• Worked on Relational data stores viz. MySQL, Oracle or Postgres
• Worked on Non-relational data stores viz. Cassandra, HBase, Couchbase, MongoDB etc
• Worked on caching infra viz. Redis, Memcached, Aerospike, Riak etc
• Worked on Queueing infra viz. Kafka, RabbitMQ, ActiveMQ etc