
Job Description below:
Required Skill Set
Senior Software Engineer- Java
- Experience in Core Java 5.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
- 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-volume server-side development
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Job Brief-
· Understand product requirements and come up with solution approaches
· Build and enhance large scale domain centric applications
· Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

About Wissen Technology
About
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.
With offices in 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. 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.
Connect with the team
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We are seeking a highly skilled and motivated Python Developer with hands-on experience in AWS cloud services (Lambda, API Gateway, EC2), microservices architecture, PostgreSQL, and Docker. The ideal candidate will be responsible for designing, developing, deploying, and maintaining scalable backend services and APIs, with a strong emphasis on cloud-native solutions and containerized environments.
Key Responsibilities:
- Develop and maintain scalable backend services using Python (Flask, FastAPI, or Django).
- Design and deploy serverless applications using AWS Lambda and API Gateway.
- Build and manage RESTful APIs and microservices.
- Implement CI/CD pipelines for efficient and secure deployments.
- Work with Docker to containerize applications and manage container lifecycles.
- Develop and manage infrastructure on AWS (including EC2, IAM, S3, and other related services).
- Design efficient database schemas and write optimized SQL queries for PostgreSQL.
- Collaborate with DevOps, front-end developers, and product managers for end-to-end delivery.
- Write unit, integration, and performance tests to ensure code reliability and robustness.
- Monitor, troubleshoot, and optimize application performance in production environments.
Required Skills:
- Strong proficiency in Python and Python-based web frameworks.
- Experience with AWS services: Lambda, API Gateway, EC2, S3, CloudWatch.
- Sound knowledge of microservices architecture and asynchronous programming.
- Proficiency with PostgreSQL, including schema design and query optimization.
- Hands-on experience with Docker and containerized deployments.
- Understanding of CI/CD practices and tools like GitHub Actions, Jenkins, or CodePipeline.
- Familiarity with API documentation tools (Swagger/OpenAPI).
- Version control with Git.
We are looking for a highly skilled Backend Developer with expertise in Core Java, Java 8, and Data Structures. The ideal candidate should have experience in Spring Boot, JPA/Hibernate, and Microservices architecture. If you are passionate about backend development and want to work in a dynamic environment, we’d love to hear from you!
Key Responsibilities:
- Develop and maintain backend applications using Core Java and Java 8.
- Design and implement RESTful and SOAP web services.
- Work with Spring Framework, Spring Boot, and JPA/Hibernate for backend development.
- Build and optimize microservices-based architectures.
- Manage databases such as PostgreSQL, MySQL, or Oracle.
- Collaborate with cross-functional teams to deliver high-quality software solutions.
- Write clean, efficient, and scalable code while following best practices.
Requirements:
✅ Strong hands-on experience in Java (Core Java, Java 8) and Data Structures.
✅ Proficiency in Spring, Spring Boot, JPA/Hibernate.
✅ Experience in developing and consuming RESTful & SOAP APIs.
✅ Knowledge of Microservices architecture and best practices.
✅ Database expertise in PostgreSQL, MySQL, or Oracle.
✅ Excellent verbal and written communication skills.
Nice to Have:
- Experience with Docker/Kubernetes.
- Knowledge of CI/CD pipelines and DevOps practices.
- Exposure to cloud platforms (AWS, GCP, or Azure).
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 10 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.
Software Engineer
Opportunity in this role / Why should you join us?
- You are your own master. We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt
- Work with one of India's leading fintech unicorn company
- ESOPs in the company
Requirements
- 3+ years and above exposure in the art of writing codes and solving problems for large scale
- Extensive and expert programming experience in any one programming language (strong OOPS skills preferred). Deep experience in a java programming language
- A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
- Have a penchant for solving complex and interesting problems.
- BE/BTech, MTech in Computer Science or related technical discipline (or equivalent).
- Excellent coding skills – should be able to convert the design into code fluently Good skills to write unit & integration tests with reasonable coverage of code & interfaces - TDD is a plus
- Experience in building highly scalable business applications, which involve implementing large complex business flows and dealing with the huge amount of data. Experience with
multi-threading and concurrency programming
- Ability to switch between the technologies and learn new skills on the go.
Roles and Responsibilities
- Drive discussions to create/improve the product, process and technology
- Build abstractions and contracts with separation of concerns for a larger scope
- Rapid prototyping
- Robust and scalable web-based applications
- Do high-level design with guidance; Functional modelling, break-down of a module
- Thinking platforms & reuse, the open-source contribution will be a plus
- Do incremental changes to architecture: impact analysis of the same
- Do performance tuning and improvements in large scale distributed systems
- Mentor young minds and foster team spirit.
We are looking for Middle and Senior level Female Java technologists at Bangalore.
These openings are with a Leading US MNC's Bangalore IDC.
This is an IC role. Need handson candidates only.
- Strong work experience in CORE JAVA
- Proficiency with Algorithms, Data Structures, Multi-threading, OOPS,
- Strong knowledge in areas like Data structures, Algorithms, Core Java & Java Fundamentals, Multithreading, IPC
- Strong knowledge of any OO language (Java, Core Java)
- Experience in database programming, mySQL experience is a plus .
SKILLS/EXPERIENCE :
Job : Senior Developers / Lead Engineer / Architect : 3.5 - 12 Yrs
Location: Bangalore
Technology skill set :
- Required Skills: Core Java, Practical implementation of Object oriented constructs & paradigms, Datastructures, Algorithms, Multi-threading, Collections, Design
Expertise :
- Required: Java Specialists with expertise in implementing object oriented constructs & paradigms in a multi-threaded environment using Core Java .
Responsibilities :
- Responsible for designing complex systems
- Independently act as a technical expert
- Handle multiple tasks at one time
Eligibility Criteria :
- Strong background in Java / Core Java. Hands on in coding.
- Bachelor's degree in computer science or a related field
- Proficient in OOPS, OOAD, Data Structures, Algorithms, Multithreading
- Database programming skill in SQL/Sybase/Oracle is a plus
- Analyze highly complex business requirements;
- generate technical specifications to design or redesign complex software components and applications;
- Acts as an expert technical resource for modeling, simulation and analysis efforts;
- Adapt to change quickly and adjust work accordingly in a positive manner;
- Be flexible and thrive in an evolving environment;
- Individual contributor to build the application for e-commerce platform;
- Assures quality, security and compliance requirements are met for supported areas;
- Working in cloud data stores to include S3, DynamoDB and/or Amazon RDS;
- Perform test automation in a test-driven development environment;
- Implement DevOps concepts, tools and continuous delivery pipelines - Bamboo, Jenkins, Maven, Bitbucket, Jira, etc;
- Implement instrumentation to gather business-specific metrics around consumer usage patterns;
- Working on test-driven development.
- Working on continuous integration and continuous development pipeline.
Company Description
BlueOptima’s vision is to become the global reference for the optimisation of the performance of Software Engineers across all industries. We provide industry-leading objective metrics in software development. We enable large organisations to deliver better software, faster and at lower cost, with technology that pushes the limits of what has been done before.
We are a global company which has consistently doubled in headcount and revenue YoY, with no external investment. We currently are located in 4 countries: London (our HQ), Mexico, India and the US. A total number of 180+ employees (and increasing every day) from 22 different nationalities and with over 25 languages spoken.
We promote an open minded environment and encourage our employees to create their own success story in this high performance environment.
Job Description
Location: Bangalore/Gurgoan, India
Department: Engineering
Job summary:
We are seeking a Senior Software Engineer, with experience in developing scalable application components, which are remotely deployed and are used to extract and push large volumes of data in a data warehouse solution, to join our growing company and be a part of our success story.
We are looking for an individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but is keen to own the solution end to end, and most importantly excited to work in a fun and friendly start-up environment.
The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.
Your team: You will be working with a diverse team with members located around our different offices, with whom you will be working hand-to-hand. This team is currently based in Gurgaon and we are now looking forward to growing it in Bangalore and mid next year to Mexico with the plan of building two teams in India (Gurgaon and Bangalore) and one in Mexico (Guadalajara).
We are looking for skilled and talented engineers to join our Data Analysis and Processing (DAP) team and directly contribute to development of application components built by the team.
The DAP team works on a business critical component which is responsible for collecting required source code interaction and static metrics data from client location, and processing the large volumes of data end to end. Remote deployment and the uptime requirements only makes this component one of the most complex standalone java applications.
As a Senior Software Engineer in the DAP team, you will be directly contributing to development of the Integrator and Central Server components using Spring Boot, Hibernate and Core Java. And while contributing directly to the development of the software components, you are also expected to lead and mentor a team of next generation platform engineers.
Responsibilities and tasks:
- Analyse, Design, Develop, implement, test and maintain application software components
- Analyse client requirements and convert them into technical specs.
- Own development of features and improvement
- Identify and resolve performance bottlenecks
- Identity and resolve architectural inefficiencies in design, and create a roadmap to resolving them
- Lead and mentor a team of junior developers
- Interact with internal client facing team and provide technical support to them
- Engage with clients to provide support on your component as and when required
Qualifications
What You Need to Succeed at BlueOptima:
- Minimum Bachelor's degree in Computer Science or equivalent
- Minimum 5+ years experience with Java and J2EE/Java EE
- Minimum 2+ years experience with developing standalone Java applications
- Strong understanding of relational database, partitioning and indexing techniques, SQL
- Demonstrable experience in optimising application performance at database or any other layer
- Experience in creating high and low level design based on existing application architecture and documenting such design
- Strong understanding of Java concurrency, concurrency patterns, experience building thread-safe code
- Ability to work autonomously with minimum supervision
- Strong problem solving and analytical skills, and having a can-do attitude
- Familiarity with Agile methodologies like SCRUM, Sprints, etc and leading a Scrum a small Scrum team
- Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
- Familiarity with Linux shell and related command line tools
- Strong grasp of Unit & Integration testing
Good to have:
- A team manager, in terms of handling people and delivery which is not a must in case of technical geeks
- Making sure that the sprints and tasks are completed on time with no spill-overs and sticking to the deadline
- Preferred experience on Spring boot,, Docker, Kubernetes
- Some exposure in Linux
Additional Information
Why join our team?
Culture and Growth:
- Global team with a creative, innovative and welcoming mindset.
- Rapid career growth and opportunity to be an outstanding and visible contributor to the company's success
- Freedom to create your own success story in a high performance environment
- Training programs and Personal Development Plans for each employee
Benefits:
- Competitive Salary
- Flexible Work from Home policy - 2 days home p/w
- Free drinks and snacks in the office
- International travel opportunities
- Global annual meet up (most recent meetups have been held in Cancun and India)
- High quality equipment (Ergonomic chairs and 32’ screens)











