Backend Developer - Freelancer

JOB DESCRIPTION

Experience: 3-8 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. - 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.

Java Developer – Job Description

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. - 5 to 12 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 Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. 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’. Our team consists of 1200+ 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 offers 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® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

🚀 Hiring: Python Developer

⭐ Experience: 2+ Years

📍 Location: Mumbai

⭐ Work Mode:- 5 Days Work From Office

⏱️ Notice Period: Immediate Joiners

(Only immediate joiners & candidates serving notice period)

Looking for a skilled Python Developer with experience in Django / FastAPI and MongoDB / PostgreSQL.

⭐ Must-Have Skills:-

✅ 2+ years of professional experience as a Python Developer

✅Proficient in Django or FastAPI

✅Hands-on with MongoDB & PostgreSQL

✅Strong understanding of REST APIs & Git

⚠️ Important Note (Please Read Before Applying):

• Only candidates with 5–8 years of relevant experience should apply.
• Freshers or candidates with less than 5 years of experience – please do not apply.
• Only immediate joiners or candidates currently serving notice will be considered.

Job Title: Java Developer (5–8 Years)

Location: Bangalore (Hybrid Mode)

Experience: 5 to 8 years

Joining: Immediate / Notice Serving Only

About the Role:

We are looking for passionate and highly skilled Java Developers to join our dynamic team in Bangalore. The ideal candidate will have strong expertise in Java, Spring Boot, Collections, Multithreading, and Data Structures & Algorithms (DSA), with proven problem-solving abilities.

Key Responsibilities:

• Design, develop, and maintain high-performance, scalable, and secure applications.
• Work with Spring Boot and related frameworks to build microservices-based solutions.
• Optimize code using Collections & Multithreading concepts for performance and reliability.
• Apply strong DSA and problem-solving skills to deliver efficient solutions.
• Collaborate with cross-functional teams to ensure timely delivery of high-quality software.
• Troubleshoot, debug, and resolve production issues efficiently.

Required Skills & Experience:

• 5–8 years of hands-on experience in Core Java and Spring Boot.
• Strong expertise in Collections, Multithreading, and Concurrency.
• Solid understanding of DSA, Algorithms, and System Design fundamentals.
• Experience in developing REST APIs and Microservices.
• Proficiency in writing clean, maintainable, and efficient code
• .Strong analytical and problem-solving skills.

Why Join Us?

• Opportunity to work on cutting-edge projects with modern architectures.
• Hybrid work setup in Bangalore.
• Fast-paced and growth-driven environment.

We are looking for Backend Developer to join our team. Fieldproxy is the first of its kind product in the space - and we are looking for out of the box thinkers with original thought process and lateral thinking. The code you ship will be used by thousands of users every day helping them get their work done. You will join a young, dynamic and fast-paced environment, work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.

Responsibilities :

- Backend development with Node.js, MongoDb and Typescript.

- Developing and testing flexible, scalable applications.

- Collaborate with Front end developers to produce optimum output.

- Think out of the box, discuss and implement your own ideas over the phase.

Required skills :

- Strong knowledge in creating RESTFUL APIs(web service)

- Proficient understanding of code versioning tools: Git.

- Good knowledge of Docker & Shell scripting

- Basic knowledge in web fundamentals: HTML, CSS

- Experience in DevOps is an added advantage.

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

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