
JOB DESCRIPTION:
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Required Skills & Experience:
- 4– 12 years of strong hands-on experience in Core Java.
- Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
- Proven experience with Spring, CXF, and REST/SOAP web services.
- Solid understanding of microservices architecture and distributed systems.
- Experience working with Sybase or other relational databases.
- Expertise in multithreading, concurrency, and high-throughput server-side development.
- Exposure to capital markets, sales & trading platforms, or similar financial services applications.
- Good working knowledge of Unix/Linux environments.
- Experience in solution architecture and design documentation is a strong plus.
- Strong problem-solving skills, analytical thinking, and a proactive attitude.
- Excellent communication and interpersonal skills to work effectively with global teams.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- Previous experience in investment banking, capital markets, or financial technology domains.
Why Join Wissen Technology?
- Be a part of a high-growth organization that has expanded 400% in the last five years.
- Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
- Engage with Fortune 500 clients and deliver high-impact projects.
- Certified as a Great Place to Work®.
- Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
- Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
- Global presence across US, India, UK, Australia, Mexico, and Canada.
Website : www.wissen.com

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
Similar jobs
Role: Sr. Java Developer
Experience: 6+ Years
Location: Bangalore (Whitefield)
Work Mode: Hybrid (2-3 days WFO)
Shift Timing: Regular Morning Shift
About the Role:
We are looking for a seasoned Java Developer with 6+ years of experience to join our growing engineering team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and cloud-based deployment using AWS or DevOps tools. This is a hybrid role based out of our Whitefield, Bangalore location.
Key Responsibilities:
- Participate in agile development processes and scrum ceremonies.
- Translate business requirements into scalable and maintainable technical solutions.
- Design and develop applications using Java, Spring Boot, and Microservices architecture.
- Ensure robust and reliable code through full-scale unit testing and TDD/BDD practices.
- Contribute to CI/CD pipeline setup and cloud deployments.
- Work independently and as an individual contributor on complex features.
- Troubleshoot production issues and optimize application performance.
Mandatory Skills:
- Strong Core Java and Spring Boot expertise.
- Proficiency in AWS or DevOps (Docker & Kubernetes).
- Experience with relational and/or non-relational databases (SQL, NoSQL).
- Sound understanding of Microservices architecture and RESTful APIs.
- Containerization experience using Docker and orchestration via Kubernetes.
- Familiarity with Linux-based development environments.
- Exposure to modern SDLC tools – Maven, Git, Jenkins, etc.
- Good understanding of CI/CD pipelines and cloud-based deployment.
Soft Skills:
- Self-driven, proactive, and an individual contributor.
- Strong problem-solving and analytical skills.
- Excellent communication and interpersonal abilities.
- Able to plan, prioritize, and manage tasks independently.
Nice-to-Have Skills:
- Exposure to frontend technologies like Angular, JavaScript, HTML5, and CSS.
Exp - 2 to 4 Yrs
Location - Viman Nagar, Pune, (WFO)
Skills - Java+Spring Boot
Budget - 50 to 70K PM



- Bachelor's or Master’s degree in Computer Science or equivalent area
- 10 to 20 years of experience in software development
- Hands-on experience designing and building B2B or B2C products
- 3+ years architecting SaaS/Web based customer facing products, leading engineering teams as software/technical architect
- Experiences of engineering practices such as code refactoring, microservices, design and enterprise integration patterns, test and design-driven development, continuous integration, building highly scalable applications, application and infrastructure security
- Strong cloud infrastructure experience with AWS and/or Azure
- Experience building event driven systems and working with message queues/topics
- Broad working experience across multiple programming languages and frameworks with in-depth experience in one or more of the following: .Net, Java, Scala or Go-lang
- Hands-on experience with relational databases like SQL Server, PostgreSQL and document stores like Elasticsearch or MongoDB
- Hands-on experience with Big Data processing technologies like Hadoop/Spark is a plus
- Hands-on experience with container technologies like Docker, Kubernetes
- Knowledge of Agile software development process
- 4+ years distributed service engineering experience in a software development environment
- Experience driving feature design reviews, documentation, UX reviews, and working with Product Managers through the entire launch process
- Strong development experience in Java, C++, C#, or similar OO languages
- Strong knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals
- Working familiarity with networking protocols (TCP/IP, HTTP) and standard network architectures
- Good understanding of databases, NoSQL systems, storage and distributed persistence technologies
- Experience building multi-tenant, virtualized infrastructure a strong plus
- 5+ years of software development experience in Java 8+ and Microservices.
- Experience in developing micro services. Experience in developing High Cohesion & Loosely Coupled Micro Services.
- Experienced in skills of requirement, analysis, design, develop, Java, springboot, microservices, rest api, AWS, lambda, EC2, Jenkins, design pattern, spring security, splunk, auth, docker, SOLID
- Hands on experience on Microservices Architecture.
- Should have excellent acumen in Data Structures, algorithms, problem-solving and Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
- Experience with Multithreading, Concurrent Package and Concurrent APIs
- Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
- Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
- Hands-on experience with Message Broker like Kafka/Rabbitmq or other. Hands-on experience in creating RESTful webservices and consuming web services. Hands-on experience with spring Cloud/Spring Boot.
- Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
- Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
- Hands on experience on Cloud deployment/development like AWS/Azure/GCP.
- Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
Benefits of Working Here:
- Gender Neutral /Diversified Culture
- 51 Leaves annually
- Insurance covered for family
- Incentives, Bonus
- Permanent WFH Option
- Generous parental leave and new parent transition program
- Flexible work arrangements
- Expertise in software design and development.
- Proficiency with at least one Object Oriented language(e. g. Java)
- Experience with building high-performance, highly available and scalable distributed systems
- Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story.

ThoughtWorks is a global software consultancy with an aim to create a positive impact on the world through technology. Our community of technologists thinks disruptively to deliver pragmatic solutions for our clients' most complex challenges. We are curious minds who come together as collaborative and inclusive teams to push boundaries, free to be ourselves and make our mark in tech.
Our developers have been contributing code to major organizations and open source projects for over 25 years. They’ve also been writing books, speaking at conferences and helping push software development forward, changing companies and even industries along the way. We passionately believe that software quality is driven by open communication, review and collaboration. That’s why we’re such vehement supporters of open source and have made significant contributions to open source tools for testing, continuous delivery (GoCD), continuous integration (CruiseControl), machine learning and healthcare.
As consultants, we https://www.thoughtworks.com/careers/hub/consultant-life">work with our clients to ensure we’re evolving their technology and empowering adaptive mindsets to meet their business goals. You could influence the digital strategy of a retail giant, build a bold new mobile application for a bank or redesign platforms using event sourcing and intelligent data pipelines. You will use the latest Lean and Agile thinking, create pragmatic solutions to solve mission-critical problems and challenge yourself every day.
You’ll spend time on the following:
- You will champion best practices like writing clean and reusable code using practices like TDD, SOLID principles, OO design, and pair programming
- You will partner with other technologists from cross-functional teams advocating devops culture
- You will work in collaborative, product-focused teams to build innovative customer experiences
- Take ownership and accountability beyond individual deliverables, always pushing the envelope in order to deliver awesome results for our clients
- Learn, digest and subsequently apply the latest technology thinking from ourhttps://www.thoughtworks.com/radar"> tech radar to solve client problems
Here’s what we’re looking for:
- You have 2+ years* of experience using two or more development languages (Java, JavaScript, Ruby, C#, etc.) with experience in Object-Oriented programming
- You’re willing and able to commit to traveling up to 100% (back home on the weekends) across the US and Canada to help our clients solve their business problems
- You can write clean, high-quality code in a variety of languages and are also able to spot (and improve) bad code
- You’re resilient in ambiguous situations and can approach challenges from multiple perspectives
- You have experience with Agile, Lean and/or Continuous Delivery approaches such as Continuous Integration, TDD, Infrastructure as Code, etc.
- Bonus points if you have knowledge of cloud technology such as AWS, Docker or Kubernetes
- You’re willing and able to commit to travel to client sites in order to solve their business problems
Tatsam is a stealth mode, venture-backed mental healthcare company based in India. We're redesigning mental health and wellness experiences for the modern day working professional, have raised angel round from top-tier investors, and signed some of the largest Indian enterprises and startups for the upcoming private beta launch… and we’re just getting started.
The startup is led by a team of CXOs who are serial entrepreneurs (YC alumni, IIT alumni, CXO in large enterprises). They are supported by a team of behavioral design experts, clinicians and counsellors with vast experience, and technologists on a mission to improve mental health and wellbeing for the modern day working professional.
Responsibilities:
- Your primary responsibility as a senior backend engineer will be to architect and develop a scalable and robust micro-services backend with strong Java, Spring(Boot), MySQL, AWS/GCP.
- Experience being part of a software development team in an Agile/Lean/Continuous Delivery environment
- Be a key performer in a high-performance product engineering team
Qualifications:
- 1 to 4 years of overall IT experience. Most of this experience in Java (Core Java, J2EE, Springboot, Java collections, Java Multithreading)
- Should have experience designing database schemas - SQL and NoSQL.
- Exposure to frameworks like Spring, Hibernate, Play would be a plus
- Experience with microservices architecture would be beneficial.
- Working knowledge of any public cloud (AWS, GCP or Azure)
- Broad understanding and experience of real-time analytics, NoSQL data stores, data modeling and data management, analytical tools, languages, or libraries
- Bachelor's Degree in Computer Science or Engineering.
The Opportunity
You will enter a close group of exceptionally talented people who in the last 2-months have secured incredible investors, partners, clients and advocates. We will continue this momentum till our vision of being able to provide good mental health and wellbeing avenues for the modern day professionals is achieved. If we like each other and agree to partner in this journey, this has the potential of resulting in a compounded career and mental growth for you.

Be Part Of Building The Future
Dremio is the Data Lake Engine company. Our mission is to reshape the world of analytics to deliver on the promise of data with a fundamentally new architecture, purpose-built for the exploding trend towards cloud data lake storage such as AWS S3 and Microsoft ADLS. We dramatically reduce and even eliminate the need for the complex and expensive workarounds that have been in use for decades, such as data warehouses (whether on-premise or cloud-native), structural data prep, ETL, cubes, and extracts. We do this by enabling lightning-fast queries directly against data lake storage, combined with full self-service for data users and full governance and control for IT. The results for enterprises are extremely compelling: 100X faster time to insight; 10X greater efficiency; zero data copies; and game-changing simplicity. And equally compelling is the market opportunity for Dremio, as we are well on our way to disrupting a $25BN+ market.
About the Role
The Dremio India team owns the DataLake Engine along with Cloud Infrastructure and services that power it. With focus on next generation data analytics supporting modern table formats like Iceberg, Deltalake, and open source initiatives such as Apache Arrow, Project Nessie and hybrid-cloud infrastructure, this team provides various opportunities to learn, deliver, and grow in career. We are looking for innovative minds with experience in leading and building high quality distributed systems at massive scale and solving complex problems.
Responsibilities & ownership
- Lead, build, deliver and ensure customer success of next-generation features related to scalability, reliability, robustness, usability, security, and performance of the product.
- Work on distributed systems for data processing with efficient protocols and communication, locking and consensus, schedulers, resource management, low latency access to distributed storage, auto scaling, and self healing.
- Understand and reason about concurrency and parallelization to deliver scalability and performance in a multithreaded and distributed environment.
- Lead the team to solve complex and unknown problems
- Solve technical problems and customer issues with technical expertise
- Design and deliver architectures that run optimally on public clouds like GCP, AWS, and Azure
- Mentor other team members for high quality and design
- Collaborate with Product Management to deliver on customer requirements and innovation
- Collaborate with Support and field teams to ensure that customers are successful with Dremio
Requirements
- B.S./M.S/Equivalent in Computer Science or a related technical field or equivalent experience
- Fluency in Java/C++ with 8+ years of experience developing production-level software
- Strong foundation in data structures, algorithms, multi-threaded and asynchronous programming models, and their use in developing distributed and scalable systems
- 5+ years experience in developing complex and scalable distributed systems and delivering, deploying, and managing microservices successfully
- Hands-on experience in query processing or optimization, distributed systems, concurrency control, data replication, code generation, networking, and storage systems
- Passion for quality, zero downtime upgrades, availability, resiliency, and uptime of the platform
- Passion for learning and delivering using latest technologies
- Ability to solve ambiguous, unexplored, and cross-team problems effectively
- Hands on experience of working projects on AWS, Azure, and Google Cloud Platform
- Experience with containers and Kubernetes for orchestration and container management in private and public clouds (AWS, Azure, and Google Cloud)
- Understanding of distributed file systems such as S3, ADLS, or HDFS
- Excellent communication skills and affinity for collaboration and teamwork
- Ability to work individually and collaboratively with other team members
- Ability to scope and plan solution for big problems and mentors others on the same
- Interested and motivated to be part of a fast-moving startup with a fun and accomplished team

