
Wissen Technology is hiring for Java Tech lead
Required:
- 8-10 years of industrial experience
- Java and related frameworks.
- Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
- Exposure on Fintech domain is mandatory
- Should have the ability to analyse, 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
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
Company Profile:
Company Name : Wissen Technology
Group of companies in India : Wissen Technology & Wissen Infotech
Work Location - Bangalore
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology

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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Job Title: Lead Java Developer
Location: Bangalore
Experience: 8-12 years (only)
Job Overview:
We are looking for a highly experienced Java / Backend Developer with a strong background in investment banking/trading/brokerages to join our team. The ideal candidate will have extensive experience in developing front office and middle office systems which require high availability, high reliability and low latency/high throughput performance profiles.
Skills & Qualifications:
- 8 to 12 years of experience in Java development, with at least 4 years in the investment banking/financial services domain.
- Strong knowledge of Java, Spring Framework, RESTful web services.
- Hands-on experience with AWS Cloud and related services. Knowledge of Kubernetes is a plus.
- Solid experience with Kafka and/or messaging protocols.
- Familiarity with SQL databases (e.g., Postgres/Oracle).
- Strong problem-solving skills and ability to work in a team.
- Ability to understand and work with distributed systems / microservices architecture.
- Solid written and verbal communication skills to interface with other technology and business stakeholders.


Why this role exists:
You’ll own our data pipelines—ingesting, cleaning, and serving fashion/e-commerce data at scale—so the team (and founder) can focus on building new capabilities. If you love end-to-end ownership and turning messy web data into reliable, queryable systems, this role is your playground.
What you’ll do:
- Ingestion at scale: Design, build, and operate resilient crawlers/scrapers with rotation, rate-limits, backoff, and change-tolerance.
- Robust pipelines: Normalization, deduping, schema evolution, enrichment, and SLAs for freshness & completeness.
- Data stores & caching: Model products/variants/attributes in PostgreSQL, manage Redis for caching/queues, and keep costs predictable.
- Observability & quality: Instrument with metrics/tracing, add data QA checks, alerts, and auto-healing where sensible.
- Performance & reliability: Optimize throughput, memory, I/O, and infra spend; design for retries, idempotency, and correct delivery semantics.
- Collaboration: Partner with search/ML/product teams; write crisp docs; raise the bar in reviews; mentor where helpful.
Must-haves:
- Super high ownership: End-to-end closure on tasks you lead.
- 3.5+ years building backend systems, preferably in Python with production ownership.
- Strong data pipeline experience (batch/stream): schema design, deduplication, and backfills.
- Hands-on with PostgreSQL/MySQL and Redis (caching, rate-limits, queues).
- Real-world web scraping: requests/httpx/aiohttp, BeautifulSoup/lxml/Scrapy/Playwright, anti-bot tactics, respectful crawling.
- Concurrency & async (asyncio, multiprocessing), robust error handling, idempotent jobs.
- Solid testing habits and bias for simple, maintainable code.
Nice-to-haves:
- Message queues/streams: Kafka, RabbitMQ, SQS.
- Workflow schedulers: Airflow, Prefect.
- GraphQL; search tech (Elasticsearch/OpenSearch).
- Cost/perf tuning, on-call pragmatism, or prior startup/founding team experience.
How we work:
- High ownership, fast shipping, clear interfaces, strong documentation.
- We optimize for time to go live—startups that succeed outpace those that don’t.
- Competitive salary + meaningful ESOPs.
- (Optional) Work from our hacker-house on MG Road, Gurgaon.
Hiring process (fast closures)
- 30-min technical deep-dive
- Take-home (optional)
- Founder conversation & references
Job Summary:
We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.
Responsibilities:
- Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
- Contribute to the architectural decisions and system design discussions.
- Write clean, efficient, and testable code following best practices.
- Optimize application performance, scalability, and reliability.
- Integrate third-party APIs and work with external systems.
- Participate in code reviews, mentor junior developers, and support the team’s technical growth.
- Work closely with DevOps to support CI/CD pipelines and deployments.
- Troubleshoot and resolve complex issues in production and non-production environments.
- Keep up with industry trends and advocate for best practices in backend development.
Required Skills:
- 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
- Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
- Experience designing and consuming RESTful APIs and working with microservices architecture.
- Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
- Proficient with version control systems like Git and tools like Maven or Gradle.
- Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
- Experience with unit testing and integration testing (JUnit, Mockito, etc.).
- Good knowledge of software design principles, data structures, and algorithms.
- Excellent problem-solving skills and attention to detail.
Job Description
As part of our role at a leading global insurance company, we are responsible for developing and managing an application to onboard and oversee the company's sales partners, including agents and brokers. This application provides users with a tailored, independent solution, including a required multi-dimensional validity date concept for administering all organizational and contractual sales force data to deliver structured information to many data consumers.
To reinforce our dynamic development team, we are seeking a skilled Backend or Full-stack Developer. In this role, you will collaborate with international cross-functional teams to design, develop, and deploy high-quality software solutions.
Responsibilities
Design, develop, and maintain the application, ensuring high performance and responsiveness.
Write clean, efficient, and reusable code.
Implement new features and functionality based on business requirements.
Participate in system and application architecture discussions.
Create technical designs and specifications for new features or enhancements.
Write and execute unit tests to ensure code quality.
Debug and resolve technical issues and software defects.
Conduct code reviews to ensure adherence to best practices.
Identify and fix vulnerabilities to ensure application integrity.
Work with frontend developers to ensure seamless integration of user-facing elements.
Collaborate with DevOps teams for deployment and scaling.
Design and implement workflow automation using Camunda BPM, integrating it with backend services and ensuring efficient process execution.
Optimize and maintain business process models and workflow orchestration using Camunda.
Troubleshoot and enhance Camunda BPMN workflows, DMN decision tables, and process automation configurations.
Requirements
Bachelor's degree in computer science, Information Technology, or a related field.
Proven experience as a skilled Backend or Full-stack Developer. Experience in the insurance domain is appreciated.
Strong experience with Spring Boot 3, Java 17 or newer, and Maven.
Experience with PostgreSQL, Jenkins, Sonar, Dynatrace, Kubernetes, Mockito, IntelliJ IDEA, and GitHub repository.
Hands-on experience with Camunda BPM (v7 or v8), including BPMN workflows, DMN decision tables, and REST API integration.
Experience with Angular TS and/or AWS, Kafka is a plus.
Excellent problem-solving and debugging skills.
Strong communication and collaboration abilities to work effectively in a team environment.
• Expertise in OOPS and coding practices and exposure to TDD
• Should be able to define deployment roadmap and requirements for DevOps implementation.
• Versatile in choosing appropriate tools and frameworks for the Core and advance java development procedures.
• Good in Spring Boot and latest java methodologies to suggest best practices and proven solutions to the business.
• Expert in service oriented solutions and micro services architecture (REST). Should have been a part of monolithic to micro services rearchitecture.
• Exposure towards No-Sql databases such as Cassandra or Mongo DB.
● J2EE with a good understanding of Servlets and JSP
● Experience in Spring Modules – Spring IOC and AOP, Spring Boot (version 2 plus), JDBC
● Expertise in design and development of various web and enterprise – level applications using Java/J2EE
technologies such as Spring, Hibernate, Rest services.
● Web Services (including SOAP, XML, XML Schema, JSON, and REST)
● Tools required: Maven,Eclipse, Github, and Swagger
● Good knowledge of SQL and Redis (NOSql)
● Ability to document requirements and specifications
● Proven work experience as a Software Engineer or Software Developer
● Ability to develop software in Java or any other OOPS languages
● Excellent knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate)
● Experience in developing Web Applications using at least one popular Web Framework (Spring)
● Experience with test-driven development
● Proficiency in software engineering tools
Java / J2EE, Spring, PostGreSQL
Nginx, Tomcat
Developing REST webservice
Technologies – Solr, Redis, Kafka
Exposure to building & managing applications in Amazon Webservices (AWS)
Experience in security, scalability & performance aspects of solution
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Job Description:
- Must have experience of 1 – 6 years.
- Experience in Java/J2EE platform.
- Experience in web application development with JSP, Servlet, Spring Boot, Hibernate
- Knowledge of MySQL database.
- Developed REST and SOAP web services..
- Experience in version control system and build tool
- Must have completed BE/MCA/M.Sc/MTech.


How would you leverage your technical expertise to create extraordinary impact for our clients?
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.
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.
For a team to thrive, it needs active collaboration and room for healthy, respectful debate. Senior Developers are the technologists who cultivate this environment while driving teams toward delivering on an ambitious tech vision and acting as mentors for more junior-level consultants. They leverage their deep technical knowledge to solve more complex business problems and actively assess their team’s health, code quality and nonfunctional pipelines.
You’ll spend time on the following:
- You will use continuous delivery practices to deliver high-quality software as well as value to end customers as early as possible.
- You will work in collaborative, value-driven teams to build innovative customer experiences for our clients
- Create large-scale distributed systems out of microservices
- You will apply the latest technology thinking from our tech radar to solve client problems
- Efficiently utilize DevOps tools and practices to build and deploy software
- You will lead or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between
- You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills
Here’s what we’re looking for:
- You have at least 5 years of experience with two or more development languages such as Java, C#, or Ruby
- You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
- Presence in the external tech community: you proactively share your expertise with others via speaking engagements, contributions to open source, blogs and more
- Comfortability with Agile methods, such as Extreme Programming (XP), Scrum and/or Kanban
- You enjoy influencing others and always advocate for technical excellence while being open to change when needed
- You’re willing and able to commit to travel to client sites in order to solve their business problems
- You’re resilient in ambiguous situations and can approach challenges from multiple perspectives
- Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker

Responsibilities Include
You will break down business opportunities and problems into software solutions. You will work closely with the CTO to help product and marketing stakeholders distill the product vision and roadmap, into a technology vision. You will be responsible for the evolution of an already bleeding-edge highly distributed systems at the back-end, and would need to work with front-end architects to come up with the best user experience for the gaming platform. You will be required to make decisions quickly, and work under strict timelines. You would lead technology strategy through analysis of market trends and product requirements. You would help set coding guidelines and help bring the most modern tools to keep engineering processes most efficient.
Requirements
- B.E/MS in Computer Science or equivalent.
- 10+ years or more of progressive software technology experience with at least 3 years in an architectural role.
- Completely hands on with technology and architecture. Start-up experience is a huge plus.
- Ability to quickly prototype and demonstrate technology value adds and educate + drive adoption within the extended technology team
- Excellent and robust understanding of scalable product system architecture(s), platforms and core technologies
- Demonstrated problem-solving and leadership skills to pursue correct engineering process in adverse conditions. Ability to embrace and demonstrate leadership beyond ownership
- Work with engineering leadership to setup and manage processes.
- Track record of thought leadership and out of the box thinking in the technology arena.
- Ability to work efficiently in an entrepreneurial and in a start-up environment
- A Java/Spring/Akka, Javascript or Golang rockstar.
- Deep and hands on knowledge of some of these technologies - MySQL, NodeJS, message brokers such as Kafka/RabbitMQ, NoSQL datastore such as Mongo, Cassandra, Arango, distributed caches such as Redis/memcached, container technology such as Docker and Kubernetes etc.
- Great proficiency in distributed systems design, with an ability to make the right trade-offs for creating future-proof solutions.
- Building quick PoCs and full-fledged solutions with various AWS managed services would be a big plus.

