Backend Developer

Java Developer – Job Description 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. - 4 to 7 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. 

Strong Full stack/Backend engineer profile

Mandatory (Experience): Must have 2+ years of hands-on experience as a full stack developer (backend-heavy)

Mandatory (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures

Mandatory (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS

Mandatory (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis

Mandatory (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS

Mandatory (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring

Mandatory (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design

Mandatory (Company) : Product companies (B2B SaaS preferred)

• New features developed independently with the ability to document the design after understanding and evaluating the requirements with necessary groundwork on required application components
• Hands-on coding to implement the design for feature completion
• Able to write unit tests that ensures bug free code
• Able to handle the multi-tenant and performance requirements of the new features and applications.
• Integrate the new features with existing modules, deliver ready to use code meeting necessary build requirements and CI/CD requirements.
• Work with other functional groups for product, technology, QA, tech support and deployment team.

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The ideal candidate must have the following qualifications.

• BE/B.Tech Degree from a reputed institution with at least 7 years of relevant experience
• Hands-on experience with Core Java, J2EE with a good knowledge of its ecosystem
• Experience with JUnit, JMH like performance tuning test tools preferred
• REST API design and development experience. Usage of Swagger or other API spec tools would be preferred. Working knowledge on Spring Boot is a plus
• Hands-on experience with some of the following application components is a plus: Solr, Kafka, OpenTSDB, Elasticsearch, Janus graph or any graph DB.
• Experience with databases such as MongoDB, MySQL or PostgreSQL required.
• Familiarity with continuous integration and build tools such as Jenkins or CircleCI, Maven, Ant required
• Experience building applications using microservices architecture is highly preferred. Knowledge of Kubernetes, Docker would be ideal
• Working knowledge on public clouds like AWS or Google cloud or Azure is a plus
• Experience building scalable systems
• Strong problem solving skills and ability and interest to solve complex problems
• Interest in machine learning (ML) data science is a plus

Job Description

Paytm is looking for hands-on technologists, who will be responsible for architecting & designing new age mobile & web 3.0 products at Paytm.

Key Responsibilities

 Incumbent will be architecting our futuristic mobile & web 3.0 products and choose the best

technologies, components and subsystems on different server side tech.

 Driving innovations in the product constantly to remain ahead of the curve.

 Serve as a thought leader and mentor on technical, architectural, design and related issues.

 Proactively identify architectural weaknesses and recommend appropriate solutions.

 Balance short-term versus long-term actions, strategic versus tactical requirements, while

continuing to move forward towards the strategic vision.

 Collaborate with cross functional teams to solve complex problems and building products

spanning across multiple teams to deliver end-to-end products & features.

 Estimates efforts, identify risks, devises and meets project schedules.

 Provide functional, design, and code reviews in related areas of expertise with-in team and

cross-team.

 Mentor / coach engineers to facilitate their development and provide technical leadership to

them. 

Skills required

 MS or BS/B.Tech in computer science or equivalent experience from top college.

 3+ years of strong software design/development experience in building massively large scale

distributed internet systems and products.

 Hands-on experience in Advanced Java/ Node.JS/other backend JavaScript

frameworks, MySQL/NoSQL, golang, etc.

 Excellent data structure & algorithm and problem solving skills.

 Experience and knowledge of open source tools & frameworks, broader cutting edge

technologies around server side development.

 Should be an active contributor to developer communities like Stackoverflow, Topcoder, Github,

Google Developer Groups (GDGs).

 Superior organization, communication, interpersonal and leadership skills.

 Must be a proven performer and team player that enjoy challenging assignments in a high-

energy, fast growing and start-up workplace.

 Must be a self-starter who can work well with minimal guidance and in fluid environment.

Technologies

Must have                         Core JAVA, J2EE, Multithreading, OOPS, and Multiprocessing

Great to have                   RabbitMQ, Netty, XML, JSON, Messagepack

Huge Advantage:             Good at mathematics, statistics, complex data structures, algorithms, and design patterns

Other skills

• Ability to understand most complex and challenging problems and solve them from users’ view point
• Ability to create and present software designs (as per the aligned solution) to the product owner
• Ability to build and create modules from scratch.
• Ability to write, understand and deal with large code base
• Experience in understanding and implementing design patterns
• Ability to provide technical leadership to a team of equally talented, efficient and motivated engineers

Roles and responsibilities

• Responsible for solving the most complex and seemingly impossible problems related to variety of dimensions of software engineering. Dealing with Big Data to Complex Data Structures, From Inter Process Communication to sub 100 MilliSec server responses, From Distributed Systems to 99.999 Availability.
• Responsible for providing technical leadership to a team of 3-4 Engineers
• Responsible to drive delivery of a project/module and report to Product Owner
• Responsible for functional/technical tracking of a project/module

Responsibility Split

• 80% Technology, 20% Team management
• With 80:20 split this is definitely a technology oriented role suitable for geeks.