SQL Database

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

• Experience: 4 to 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.

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.

JOB DESCRIPTION:

Location: Pune, Mumbai, Bangalore

Mode of Work : 3 days from Office

* Python : Strong expertise in data workflows and automation

* Pandas: For detailed data analysis and validation

* SQL: Querying and performing operations on Delta tables

* AWS Cloud: Compute and storage services

* OOPS concepts

Position: Lead Backend Engineer

Location: Remote

Experience: 10+ Years

Budget: 1.7 LPM

Employment Type: [Contract]

Required Skills & Qualifications:

• 10+ years of proven backend engineering experience.
• Strong proficiency in Python.
• Expertise in SQL (Postgres) and database optimization.
• Hands-on experience with OpenAI APIs.
• Strong command of FastAPI and microservices architecture.
• Solid knowledge of debugging, troubleshooting, and performance tuning.

Nice to Have:

• Experience with Agentic Systems or ability to quickly adopt them.
• Exposure to modern CI/CD pipelines, containerization (Docker/Kubernetes), and cloud platforms (AWS, Azure, or GCP).

Required Skills: 

• 4+ years of experience designing, developing, and implementing enterprise-level, n-tier, software solutions.  
• Proficiency with Microsoft C# is a must.  
• In-depth experience with .NET framework and .NET Core.  
• Knowledge of OOP, server technologies, and SOA is a must. 3+ Years Micro-service experience .  
• Relevant experience with database design and SQL (Postgres is preferred).  
• Experience with ORM tooling.  
• Experience delivering software that is correct, stable, and security compliant.  
• Basic understanding of common cloud platform. (Good to have)
• Financial services experience is strongly preferred.  
• Thorough understanding of XML/JSON and related technologies.  
• Thorough understanding of unit, integration, and performance testing for APIs.   
• Entrepreneurial spirit. You are self-directed, innovative, and biased towards action. You love to build new things and thrive in fast-paced environments.  
• Excellent communication and interpersonal skills, with an emphasis on strong writing and analytical problem-solving. 

At Upswing, we are a passionate and self-driven team of thinkers who aspire to build the rails to connect the legacy financial sector with financial innovators through a simple and powerful banking-as-a-service (BaaS) platform. We’re building our platform putting the focus on pragmatism, reliability, and maintainability. We believe that keeping the engineering complexity under control is key to preserving the development productivity and long-term evolution of a platform.

To bring this vision to life, we are building the infrastructure using Microservices architecture using the latest set of technologies that are also fun to work with such as Java, Scala, Postgres, Akka, Kafka with a completely automated DevOps pipeline from the get-go using tools like Chef, Jenkins, Grafana, Graylog.

We are looking for motivated engineers who will be working in a highly creative and cutting-edge technology environment to build a world-class financial services suite.

Why you should join us:

• You will redefine the financial services landscape for India in the coming years.
• Be part of a core Engineering team that will create innovative and scalable Fintech solutions.
• Work with passionate and experienced engineering, product & business workforce that believes in teamwork, and that helps fast-track learning on solving complex technical challenges.
• We are funded by the leading fintech VC `QED Investors` and other established Founders and Executives of awesome Indian companies.

What you will do if you join us:

• Propose solutions to solve complex system architecture challenges and actively lead the end-to-end development of the system.
• Create robust, flexible, consistent, and easy-to-use APIs
• Continuously strive for performance improvements, code reusability, and readability
• Understand the product in detail and predict potential issues in feature development.
• Mentor and lead junior members of the team

You should have:

• Ability to think of out of the box
• Tech or a higher degree in computer science or a related field.
• 3+ years of experience working on the back-end development for complex distributed systems who are willing to adopt any Programming language as per the requirement.
• Familiarity with any of the following – Java, C++, Scala, Kotlin, and frameworks like Spring, Play, Hibernate, Django, etc.
• Good understanding of Algorithms, Data Structure, OOP, Design patterns, Parallel programming, Multithreading concepts & Event-Driven Systems.
• Understanding of micro-services architecture and best practices.
• Experience with Relational databases such as MySQL, PostgreSQL, Oracle, or any NoSQL database.

It is a plus if you have:

• Familiarity with cloud platforms like AWS (Amazon Web Services), Azure or Google Cloud

Project Overview: We are looking for expert level Postgres database developer to work on a software application development project for a fortune 500 US based telecom client. The application is web based and used across multiple teams to support their business processes. The developer will be responsible for developing various components of the Postgres database and for light administration of the database.

Key Responsibilities: Collaborate with onshore, offshore and other team members to understand the user stories and develop code. Develop and execute scripts to unit test. Collaborate with onshore developers, product owner and the client team to perform work in an integrated manner.

Professional Attributes: Should have the ability to work independently and seek guidance as and when necessary - Should have good communication skills - Flexible working in different time zones if necessary - Good team player - Mentoring juniors

Experience preferred:

• Extensive experience in Postgres database development (expert level)
• Experience in Postgres administration.
• Must have working experience with GIS data functionality
• Experience handling large datasets (50-100M tables)
• Preferred – exposure to Azure or AWS
• Must have skillsets for database performance tuning
• Familiarity with web applications
• Ability to work independently with minimal oversight
• Experience working cohesively in integrated teams
• Good interpersonal, communication, documentation and presentation skills.
• Prior experience working in agile environments
• Ability to communicate effectively both orally and in writing with clients, Business Analysts and Developers
• Strong analytical, problem-solving and conceptual skills
• Excellent organizational skills; attention to detail
• Ability to resolve project issues effectively and efficiently
• Ability to prioritize workload and consistently meet deadlines
• Experience working with onshore-offshore model

Few words about Unify Technologies: Unify a Digital Engineering company. We help our clients by providing Digital Engineering Services to develop high-quality products. We have extensive experience in software product engineering and a successful track record of delivering on aggressive delivery plans without compromising on the quality in Cloud, Mobile, and Data practices.

If you are looking for a solid opportunity to put your Computer Science skills to test you are in the right place. We need some hard-core programming help to help enhance our Data management frameworks used to move data between platforms and systems seamlessly.

Employment Type: Full-Time

Position: Sr SDE - Senior Software Development Engineer (Java Back-End Development)

Project: Product-Apple’s Maps and Advertising Platforms

Experience: 4-8 Years

Key Skills: Java Programming + Spring Boot + REST / Java + SQL

Joining time: Immediate to 30 days

Work Location: Hyderabad - India

Education: Master’s/Bachelor’s degree in Computer Science, Statistics, Engineering or a related technical discipline will be preferred

Detailed Job Description: At UNIFY, great ideas have a way of becoming great products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish. 

We are looking to hire extraordinary individuals with strong communication and interpersonal skills and ability to work effectively across multiple business and technical teams. As a part of this team, you will build cutting edge software service, one that is continually innovating and is proud of making a difference. 

You should be a self-starter, motivated, with exceptional interpersonal skills as well as a positive and flexible approach to problems. The applicant should have the ability to thrive in a fast-paced, tight deadline delivery timeline. As a part of this dynamic team, the applicant will help us build the product experience on a global scale. 

If you’ve responded positively to the above questions and want to work in a great, international team, that is passionate, creative, ambitious, open to knowledge-sharing, and loves to cooperate with each other - join us!

Key Qualifications:

• Minimum of 4 years experience implementing large-scale production systems

• Hands-on experience with design, development and productizing highly available, distributed and scalable transactional enterprise systems.

• Strong hands-on programming experience in Java/J2EE building middleware or backend applications.

• Strong development experience of microservices architecture in a highly distributed environment with web services, Spring, Spring Boot, Hibernate and SOA

• Experience with RDBMS like Oracle and NoSQL databases such as MongoDB, Couchbase, Elasticsearch

• Sharp troubleshooting skills and real-world systems deployment experience.

• Proven track record with rapid development cycles and demanding schedules

• Experience doing Software Development using Agile methodologies

• Understanding or experience working on Cloud technologies is a plus

Roles & Responsibilities:

• Design and implement web APIs.

• In this role, you will be involved in the end to end cycle of design, development and deployment of core services for mission-critical customer-facing applications. 

• Results-oriented and demonstrate a high degree of ownership and accountability.

• Experience handling distributed vendor resources

• Creative problem solver and excellent collaborator, who thrives in a fast-paced, innovative environment.

• Communicate quickly and effectively; vertically and horizontally through the organization.

• Influence others to get things done.

• Must possess excellent problem-solving & analytical skills.

• Handle ambiguity and solve problems despite uncertainties.

• Ability to lead large projects focusing on innovation, teamwork and results.

• Proven track record of achieving outstanding results in a professional career