
- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- 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.

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 Senior Backend Engineers who thrive in agile, fast-moving teams and can turn bold ideas into impactful products. You will play a critical role in developing high-quality backend systems, solving complex problems independently, and shaping next-gen solutions that drive our company’s mission forward. You should excel in building scalable, performant systems and have a deep understanding of design and architecture patterns.
What You’ll Do
- The development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.
- Writing clean, high-quality, high-performance and maintainable code.
- The entire lifecycle of stories: development, test, production, and subsequent fixes and improvements.
- Solving complex technical problems.
- Develop a highly scalable and performant backend based on event-driven architecture.
- Building robust, secure and scalable microservices.
- Splitting features into tasks and for the backend architecture and its evolution.
- Performing an objective analysis of the problem statement and coming up with an unbiased technical solution before writing a single line of code.
- Coordinating cross-functionally to ensure the project meets business objectives and compliance standards. This includes collaborating with QAs, PMs to ensure timely delivery of high-quality apps.
- Participating in, designing and driving the code review process.
- Implementing RESTful services with a metric-driven API Gateway.
- Ensuring sub-second server response and implementing relational, document, key, object or graph data-stores, index stores and messaging stores as needed.
- Tracking defects and working with business owners and users to triage bugs and manage backlog.
- Taking ownership to run and maintain Cloud infrastructure.
- Evaluating relevant technologies, influencing and driving architecture and design discussions.
- Owning and delivering end-to-end backend features, ensuring high performance, reliability, and scalability.
- Collaborating with product stakeholders to deliver impactful solutions aligned with business objectives.
- Writing clean, efficient, maintainable code using best practices and participating in code reviews.
- Building reusable services and contributing to core engineering libraries.
- Documenting and demonstrating solutions through documentation, DFDs, and code comments.
- Solving complex technical problems with objectivity before writing code.
- Taking ownership of backend systems, including APIs, data pipelines, and infrastructure.
- Working closely with Product to help drive KPIs and align engineering goals with business outcomes.
- Staying agile and adapting quickly to evolving requirements, scope, and priorities.
What You Bring
- 3+ years of experience in software development with strong expertise in Golang.
- Overall 6+ years of experience in software development with a strong base and framework expertise in Java/Go/Python.
- Basic working knowledge of frontend technologies.
- Experience with frameworks – like Springboot, Quarkus, Gin/Mux.
- Experience in working with microservice architectures, transactional systems, and distributed environments.
- Exposure in building RESTful APIs with monitoring, fault tolerance and metrics (with something like Newrelic).
- Experience with MySQL, PostgreSQL, NoSQL (Cassandra, Redis, DynamoDB).
- Proficient in OOP, SQL, Design Patterns with Data modeling experience in Relational databases.
- Proficient in building GraphQL APIs.
- Proficient with Continuous Integration (CI), Continuous Deployment (CD) and version control (Git).
- Well-versed with TDD and Test Engineering and Automation.
- Excellent attention to detail.
- Outstanding written and verbal communication skills.
- Experience mentoring a team of 2–3 engineers.
- A self-starter who can work well with minimal-to-no guidance in a fluid environment.
- Excited by challenges surrounding the development of highly scalable & distributed systems.
- Agile and able to adapt quickly to changing requirements, scope, and priorities.
- Experienced in working on massively large-scale data systems in production environments.
Bonus Points For
- Open-source contributions, side-projects, blog posts and YT tech videos.
- Experience deploying serverless applications to GCP.
- Experience in Cloud Run, Cloud Pub/Sub, Cloud Tasks, Kubernetes, Cloud Vision.
- Experience with AWS stack.
- Machine learning experience.
What You Get
- Best in class salary: We hire only the best, and we pay accordingly.
- Proximity Talks: Meet other designers, engineers, and product geeks — and learn from experts in the field.
- Keep on learning with a world-class team: Work with the best in the field, challenge yourself constantly, and learn something new every day.
About Us
Proximity is the trusted technology, design, and consulting partner for some of the biggest Sports, Media and Entertainment companies in the world! We’re headquartered in San Francisco and have offices in Palo Alto, Dubai, Mumbai, and Bangalore. Since 2019, Proximity has created and grown high-impact, scalable products used by 370 million daily users, with a total net worth of $45.7 billion among our client companies.
We are Proximity - a global team of coders, designers, product managers, geeks, and experts. We solve complex problems and build cutting edge tech, at scale. Our team of Proxonauts is growing quickly, which means your impact on the company’s success will be huge. You’ll have the chance to work with experienced leaders who have built and led multiple tech, product and design teams.
Job Description:
- Experience in Core Java, Spring Boot.
- Experience in microservices.
- Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
- Good knowledge of multi-threading
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should be able 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.
Roles:
- Developing core infrastructure in Python, Django.
- Developing models and business logic (e. g. transactions, payments, diet plan, search, etc).
- Architecting servers and services that enable new product features.
- Building out newly enabled product features
- Minimum 4 years of industry or open-source experience.
- Proficient in at least one OO language: Python(preferred)/Golang/Java.
- Writing high-performance, reliable and maintainable code.
- Good knowledge of database structures, theories, principles, and practices.
- Experience working with AWS components [EC2, S3, RDS, SQS, ECS, Lambda].
Qualifications:
- A Bachelor’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
Job Role:
- 4+ years of object-oriented Java / J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc)…
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
Skills:
- Expertise in Python 3 on AWS serverless
- Experience in AWS serverless stack Appsync, Lambda, Cognito, API Gateway, DynamoDB, Elasticsearch, SQS, S3, Code commit & Code Deploy.
- Proficient in modern microservice-based architectures and methodologies.
- Experience in a database technology, preferably No-SQL such as AWS DynamoDB.
- Build human-centric UX with us using technologies like React, TypeScript, GraphQL, and CSS-in-JS.
- Experience building data processing pipelines (SQS, Kinesis, DynamoDB, AWS Lambda, or similar)
- Deep technical hands-on experience developing in REST/JSON or SOAP/XML, combined with strong knowledge of concepts such as CORs (Cross Origins Resources), headers, security, JSON and http concept.
- Experience with Github and advanced Github features (good to have).
- Must have worked as a part of Agile Teams and DevOps practices such as continuous Integration tools (e.g. Jenkins), code repository, creating CI/CD pipelines is required.
Our client is a call management solutions company, which helps small to mid-sized businesses use its virtual call center to manage customer calls and queries. It is an AI and cloud-based call operating facility that is affordable as well as feature-optimized. The advanced features offered like call recording, IVR, toll-free numbers, call tracking, etc are based on automation and enhances the call handling quality and process, for each client as per their requirements. They service over 6,000 business clients including large accounts like Flipkart and Uber.
- Selecting appropriate Cloud services to design and deploy an application based on given requirements
- Migrating complex, multi-tier applications on Cloud Platforms
- Designing and deploying enterprise-wide scalable operations on Cloud Platforms
- Implementing cost-control strategies
- Developing and maintain the CI/ CD pipeline for the assigned projects
- Conducting code reviews, and make technical contributions to product architecture
- Getting involved in solving bugs and delivering small features
- Fostering technical decision making on the team, but taking final decisions when necessary
- Understanding engineering metrics and seeking to improve them
- Understanding the requirements from the Product team, plan and execute.
What you need to have:
- Expert in designing Software and System architecture.
- Must have knowledge of Python (PHP knowledge is a plus) and related tools.
- Must understand MySQL queries and optimization.
- Must be able to build high performance teams.
- Must have worked with similar technologies: redis, docker, AWS, elasticsearch.
- Must know about microservice architectures and CI/ CD pipelines.
- Must be great at planning, researching and communicating.
- Must have a good understanding of application metrics.
- 0 to 2 years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, SQL, PL/SQL, XML, XSLT, JSON,
- Good to have strong experience in Core Java SpringBoot, Spring framework
- knowledge of Spring MVC, Spring REST, JDBC Templates
- Knowledge of Java/J2EE Design patterns
- knowledge of implementation of WebServices like REST will be added advantage
- Good knowledge of Relational Databases like MySQL, PostgreSQL, MS SQL Server with complex SQL Queries, Stored Procedure, Triggers
- Knowledge of Unit Test Cases is added advantage
- Knowledge of build tools like Maven, Gradle, Ant
- Knowledge of any one or more of MongoDB, Cassandra, Neo4J, Redis, Kafka, ActiveMQ, Caches, Microservices will be a major plus
- Good to have knowledge of ORM like Hibernate
- Knowledge and experience in nodejs backend will be added advantage
Requirements :
- Must be a good team player and self-motivated Individual
- Very Strong analytical abilities and interpersonal skills
- Strong verbal and written communication skills with other developers and business clients
- High commitment levels











