Backend Developer

Java Lead We are solving complex technical problems in the financial 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. 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. Experience: 8–13 years in Java development. Domain Expertise: Background in product-based companies, investment banking experience preferred. Leadership: Proven ability to lead teams of 3–4 members. Technical Depth: Hands-on with complex systems and distributed architectures. Soft Skills: Strong analytical thinking, problem-solving, and excellent communication. Process Knowledge: Expertise in end-to-end SDLC and Agile methodologies. Tech Stack ● Languages & Frameworks: Core Java, J2EE, Spring Boot, Spring Framework. ● Architecture: RESTful APIs, Microservices. ● Persistence: Hibernate/JPA. ● Databases: Postgres, MySQL (or similar). ● Tools: Maven/Gradle, CI/CD pipelines. ● Cloud: AWS/Azure (nice to have). 

What You’ll Do:

● Lead and mentor a team of backend engineers, providing technical direction, guidance, and

performance feedback

● Architect, design, and develop scalable backend services and APIs using Golang

● Own SQL database design, optimization, indexing, and performance tuning to ensure data integrity

and efficiency

● Work closely with Product, QA, DevOps, and Analytics teams to translate business requirements

into robust technical solutions

● Drive best practices in system design, code quality, security, and reliability

● Troubleshoot and resolve complex issues across development, staging, and production

environments

● Oversee CI/CD pipelines and ensure smooth, reliable deployments

● Conduct and participate in code reviews to maintain high engineering standards

● Collaborate with QA teams to ensure thorough testing and high-quality releases

● Stay updated with emerging technologies and industry trends, recommending and implementing

improvements where applicable

● Foster a collaborative, innovative, and growth-oriented engineering culture

What You’ll Need

● 6+ years of professional software engineering experience, including 3+ years of hands-on Golang

development

● Proven experience leading or managing engineering teams

● Strong expertise in SQL databases (schema design, query optimization, indexing, performance

tuning)

● Hands-on experience with Columnar OLAP databases (Druid, ClickHouse, or similar)

● Hands-on experience with OLTP databases (ScyllaDB, Redis, or similar)

● Solid understanding of microservices architecture, RESTful APIs, and distributed systems

● Experience with Docker, Kubernetes, and cloud platforms (AWS / GCP / Azure)

● Strong proficiency with Git and collaborative development workflows

● Deep understanding of concurrency, performance optimization, and memory management in

Golang

Nice to Have:

● Experience with NoSQL databases and data modeling

● Exposure to messaging systems such as Kafka, RabbitMQ, or similar

● Familiarity with monitoring and observability tools (Prometheus, Grafana, ELK stack)

● Experience working in Agile / Scrum environments

Integration Developer

Job Description

Roles and Responsibilities

• Design, Code, test, debug, implement and document complex WSO2 sequences.
• Monitoring and logging tool stacks - Splunk/ELK/Prometheus, Grafana 4 Design, Code, test, debug, implement and document complex WSO2 sequences.
• Perform Build activities for WSO2 ESB Middleware integration, involves writing XSLT, ESB coding, configuration, and Analysis activities.
• Trouble shooting various problems in different stages of development using logs files, Traces and Log Analyzer.
• Responsible for understanding the requirement, solution design, coordinate the development and testing activities (end to end)
• Guide the team regarding WSO2 platform best practices, framework, reusable artefacts and ensure code quality and timely deliverables.
• Work with functional and technical customers to determine solutions that drive additional business value.
• Work with Github, Azure Devops and CI tools to automate dev, build, deployment and testing.
• Good knowledge in messaging brokers: WSO2 Message Broker, Apache Kafka.
• Monitoring the server (Monitoring logs and WSO2 metrics).
• Desired Candidate Profile

Desired Candidate Profile

• Candidate must have minimum 2+ years of hands-on experience in WSO2, preferably with WSO2 certification.
• Extensive experience in Integration by using WSO2 Product Stack (API Manager 2.6/3.x, Enterprise Integrator 6.5 and Identity Server 5.7.0)
• Experience in Implementing APIs in WSO2 EI and On-boarding APIs into WSO2 API Manager
• Experience in WSO2 API Manager for designing API facades and designing and implementing API Proxies.
• Hands-on experience in designing and developing high volume web services using API Protocols and Data Formats (REST, JSON, SOAP & XML).
• Must have hands on experience / knowledge with CI tools to automate dev, build, deploy.
• Experience in programming languages: Java, JavaScript, Python
• Experience in on boarding web applications into WSO2 Identity Server for authentication and authorizatio

Qualifications

• Minimum of a Bachelor's or Master’s degree in Computer Science, or a related four-year degree.
•        4 years of hands on experience in Integration

Your Impact:

•                 Implements Digital Consumer experiences based on a foundation of SFCC (Salesforce commerce cloud) to meet expected quality standards

•                 Ensures functional requirements and high-level solution designs are understood and are translated into detailed technical design

•                 Implement proofs of concept to prove any new technologies, application flows or integration scenarios and identify customizations needed to SFCC platform for meeting client requirements

•                 Guides the performance tuning and scalability of the ecommerce solution

•                 Diagnose and solve technical problems during implementation and support phases

Your Skills & Experience:

•                 1-3 Years with 2+ years of implementing commerce application on any eCommerce platform in last 3 years

•                 If you have not worked in eCommerce platform, we can still discuss with you if you are expert in Java/.Net and understand REST/SOAP webservices.

•                 Demonstrate proficiency in build and release management using CI/CD strategies (leveraging tools like Jenkins and DevOps practices), implement Mocha/Chai unit and functional test cases in order to reduce costs while ensuring quality

•                 Contributes to designing, implementing and documenting the build release process as well as system configuration and deployment characteristics of the applications

•                 Participates in technical walkthroughs/ code reviews of other team members’ components, test plans and results and help them with gaps

•                 Collaborate with architect to define implementation processes and quality gates and standards

•                 Identifies risks and issues, and help monitor them

•                 Guides the development of reference and resource materials

•                 Mentors developers in improving their platform knowledge and development skills

•                 Communicate technical design to the developers and help/guide them in the implementation

•                 Participates in Agile sprints

Set Yourself Apart With:

•                 eCommerce platform certification

Backend/Fullstack Developer

About the Company:

Company is India’s largest and best-established digital wealth management service that helps its customers create wealth for their long-and-short-term goals. Founded in 2012, Company is a pioneer in the digital financial services category and is recognised for creating simple and elegant user experiences in a complex domain. We do this by simplifying complex investing concepts and automating best practices, so our customers can grow their wealth without worry. We achieve this by combining cutting-edge technology, data-driven algorithms, awesome UX and friendly customer support. Our task is ambitious and we like to work hard as well as smart. We want to build a team that relishes challenges and contributes to a new way of thinking and investing in India. We are also invested in the growth of our colleagues and providing a supportive and thriving working environment for everyone. We have been recognised by Great Place To Work® as one of India’s best companies to work for.

Role specific info:

• 4-12 years of experience building good quality production software
• Excellent knowledge of at least one ecosystem based on Elixir/Phoenix, Ruby/Rails, Python/Django, Go/Scala/Clojure
• Good OO skills, including strong design patterns knowledge
• Familiar with datastores like MySQL, PostgreSQL, Redis, Redshift etc.
• Familiarity with react.js/react-native, vue.js etc. • Knowledge of deploying software to AWS, GCP, Azure
• Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)

What would you do here:

• Writing quality code using language best practices.
• Working in a highly collaborative team.
• Building good software using the latest tools and techniques.
• Participating in design reviews, coding modules, code reviews and unit testing.
• Taking ownership of quality and usability of your code.
• Mentoring co-workers.
• Leading efforts in improving technology architecture.

• Java, J2EE
• Microservices
• Spring Boot
• JPA, REST API, JSON, JWT, OAuth, Spring Security, Swagger
• Oracle / MySQL / Postgres DB
• Angular / React / React Native
• JIRA, Bitbucket

Must-Have -

• Excellent knowledge of Core Java and Spring
• Strong experience in REST API and web services
• Experience in Oracle / Mysql / Postgres DB
• Should be efficient with Java J2EE and related technologies
• Should have very good communication skills and analytical skills.
• Should have good knowledge in Software Development Life Cycle and Agile methodologies.
• Good knowledge of current / emerging technologies and trends
• Good analytical and problem-solving skills
• Excellent written and verbal communication skills. High levels of initiative and creativity
• Good communication skills with all stakeholders, good team player with ability to mentor juniors

Good to Have:

• Knowledge in Banking Domain
• Full-stack developers with knowledge and understanding of Javascript and associated technologies like React, Angular, HTML5, CSS will have an advantage.