Backend Developer

Job Details

- Job Title: Lead Software Engineer - Java, Python, API Development

- Industry: Global digital transformation solutions provider

- Domain - Information technology (IT)

- Experience Required: 8-10 years

- Employment Type: Full Time

- Job Location: Pune & Trivandrum/ Thiruvananthapuram

- CTC Range: Best in Industry

Job Description

Job Summary

We are seeking a Lead Software Engineer with strong hands-on expertise in Java and Python to design, build, and optimize scalable backend applications and APIs. The ideal candidate will bring deep experience in cloud technologies, large-scale data processing, and leading the design of high-performance, reliable backend systems.

Key Responsibilities

• Design, develop, and maintain backend services and APIs using Java and Python
• Build and optimize Java-based APIs for large-scale data processing
• Ensure high performance, scalability, and reliability of backend systems
• Architect and manage backend services on cloud platforms (AWS, GCP, or Azure)
• Collaborate with cross-functional teams to deliver production-ready solutions
• Lead technical design discussions and guide best practices

Requirements

• 8+ years of experience in backend software development
• Strong proficiency in Java and Python
• Proven experience building scalable APIs and data-driven applications
• Hands-on experience with cloud services and distributed systems
• Solid understanding of databases, microservices, and API performance optimization

Nice to Have

• Experience with Spring Boot, Flask, or FastAPI
• Familiarity with Docker, Kubernetes, and CI/CD pipelines
• Exposure to Kafka, Spark, or other big data tools

Skills

Java, Python, API Development, Data Processing, AWS Backend

Skills: Java, API development, Data Processing, AWS backend, Python,

Must-Haves

Java (8+ years), Python (8+ years), API Development (8+ years), Cloud Services (AWS/GCP/Azure), Database & Microservices

8+ years of experience in backend software development

Strong proficiency in Java and Python

Proven experience building scalable APIs and data-driven applications

Hands-on experience with cloud services and distributed systems

Solid understanding of databases, microservices, and API performance optimization

Mandatory Skills: Java API AND AWS

******

Notice period - 0 to 15 days only

Job stability is mandatory

Location: Pune, Trivandrum

JOB DETAILS:

* Job Title: Engineering Manager (Client facing)

* Industry: Technology

* Salary: Best in Industry

* Experience: 8-12 years

* Location: Bengaluru

Role & Responsibilities

We are seeking a visionary and decisive Engineering Manager to join our dynamic team. In this role, you will lead and inspire a talented team of software engineers, driving innovation and excellence in product development efforts. This is an exciting opportunity to influence and shape the future of our engineering organization.

Key Responsibilities:

• Provide technical leadership and mentorship to a high-performing team of software engineers.
• Develop and implement engineering strategies that align with organizational goals.
• Manage multiple concurrent projects, ensuring timely delivery and high-quality outcomes.
• Collaborate closely with cross-functional teams to define and prioritize product features.
• Implement and uphold Agile methodologies to optimize team performance and efficiency.
• Conduct regular performance evaluations, fostering continuous professional growth within the team.
• Oversee the entire software development lifecycle, from initial conception through to deployment.
• Manage budgets, resources, and capacity planning for engineering projects.
• Stay up-to-date with emerging technologies, ensuring the team is equipped with the latest industry trends.
• Ensure adherence to best engineering practices, maintaining high coding standards.
• Hands-on coding experience required – actively contribute to coding and technical design decisions.
• Tech stack: Java, Spring, microservices, cloud technologies, and building large-scale systems.
• Experience in collaborating directly with clients – ensuring client requirements are met and managing relationships effectively.

Ideal Candidate

• Strong Client-Facing Engineering Manager Profile
• Must have 8+ years of engineering experience, with substantial exposure to back-end development, scalable distributed systems, and modern web services
• Must have 2+ years of experience in people and delivery leadership, owning engineering execution and leading teams to deliver complex products
• Must have proven experience working directly with external stakeholders / clients, translating client requirements into engineering plans and delivering solutions with high customer impact
• Strong technical foundation with experience in backend engineering, REST APIs, databases (SQL/NoSQL), and building reliable, high-performance systems
• Strong problem-solving and design capabilities; experience with system design, architecture reviews, and engineering best practices
• Must have expertise in agile methodologies and project management tools
• Excellent written and verbal communication skills, with a track record of presenting technical solutions to both technical and non-technical stakeholders
• (Cross-Functional Collaboration): Must be skilled in working with product, design, sales, and client teams to drive requirements, delivery, and client success
• (Execution & Delivery): Demonstrated ability to manage end-to-end delivery, coordinate releases, prioritise effectively, and deliver results in time
• (Company): Product companies
• (Stability): Must have stayed for at least 2 years with each of the previous companies
• (Education): B.Tech in computer science, engineering or a related field from Tier 1, Tier 2 colleges (Master's preferred)

Responsible for developing, enhancing, modifying, and maintaining chatbot applications in the Global Markets environment. The role involves designing, coding, testing, debugging, and documenting conversational AI solutions, along with supporting activities aligned to the corporate systems architecture.

You will work closely with business partners to understand requirements, analyze data, and deliver optimal, market-ready conversational AI and automation solutions.

Key Responsibilities

• Design, develop, test, debug, and maintain chatbot and virtual agent applications
• Collaborate with business stakeholders to define and translate requirements into technical solutions
• Analyze large volumes of conversational data to improve chatbot accuracy and performance
• Develop automation workflows for data handling and refinement
• Train and optimize chatbots using historical chat logs and user-generated content
• Ensure solutions align with enterprise architecture and best practices
• Document solutions, workflows, and technical designs clearly

Required Skills

• Hands-on experience in developing virtual agents (chatbots/voicebots) and Natural Language Processing (NLP)
• Experience with one or more AI/NLP platforms such as:
• Dialogflow, Amazon Lex, Alexa, Rasa, LUIS, Kore.AI
• Microsoft Bot Framework, IBM Watson, Wit.ai, Salesforce Einstein, Converse.ai
• Strong programming knowledge in Python, JavaScript, or Node.js
• Experience training chatbots using historical conversations or large-scale text datasets
• Practical knowledge of:
• Formal syntax and semantics
• Corpus analysis
• Dialogue management
• Strong written communication skills
• Strong problem-solving ability and willingness to learn emerging technologies

Nice-to-Have Skills

• Understanding of conversational UI and voice-based processing (Text-to-Speech, Speech-to-Text)
• Experience building voice apps for Amazon Alexa or Google Home
• Experience with Test-Driven Development (TDD) and Agile methodologies
• Ability to design and implement end-to-end pipelines for AI-based conversational applications
• Experience in text mining, hypothesis generation, and historical data analysis
• Strong knowledge of regular expressions for data cleaning and preprocessing
• Understanding of API integrations, SSO, and token-based authentication
• Experience writing unit test cases as per project standards
• Knowledge of HTTP, REST APIs, sockets, and web services
• Ability to perform keyword and topic extraction from chat logs
• Experience training and tuning topic modeling algorithms such as LDA and NMF
• Understanding of classical Machine Learning algorithms and appropriate evaluation metrics
• Experience with NLP frameworks such as NLTK and spaCy

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.

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 hassuccessfully 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.

• Develop and maintain server-side logic using Node.js, JavaScript, and Python.
• Collaborate with front-end developers, designers, and product managers to create scalable and responsive web applications.
• Design and implement APIs and web services to facilitate seamless integration with other systems.
• Optimize applications for maximum speed, scalability, and reliability.
• Identify and troubleshoot performance bottlenecks and implement effective solutions.
• Ensure the security and data protection of the backend systems.
• Write efficient and reusable code, following industry best practices and coding standards.
• Conduct code reviews and provide constructive feedback to improve code quality.
• Stay up-to-date with the latest industry trends and technologies to drive continuous improvement.
• Participate in the entire software development lifecycle, from requirements gathering to deployment and maintenance.

PHP Developer Requirements:

1. Candidate should have experience on Core PHP, Web services,Yii Framework, Web servers, Linux working environment & MVC.

2. Excellent skills in MySQL, Optimization techniques, schema design, Stored procedures, Triggers

3. Good command over design patterns.

4. Good command over OOPS

5. Strong debugging & troubleshooting skills

6. Writing algorithms on application security.

7. Writing shell scripts & integration of third party web services

8. Knowledge on any one of server monitoring tools much appreciated.

9. Should have any one version control (git is more advantage)

10. Should be proactive.

Responsibilities:

1. Writing PHP & shell script code.

2. Analyzing requirements, maintain design patterns & making deployments on time. 3. Understanding the client requirements and implement the tasks in time.

4. Writing Stored procedures, functions and Views in Sqlserver.

Must Have:

1. Solid programming & logical skills.

2. Candidate must have experience on MySQL, Yii framework, MySQL database.

3. Hard working, positive attitude and ability to deliver under time and resource constraints.

• Design, develop and manage data on various open-source SQL databases
• End-to-end performance tuning of Oracle, MariaDB, MySQL, PostgreSQL, and Aurora against very large data sets
• Database cluster connectivity and security
• Conduct database training
• Software installation and configuration
• Database patching and upgrading
• Using monitoring and management tools
• Troubleshoot various issues with other dba’s/developers
• Point of Contact for Vendor escalation
• Point of Contact for professional service to Customers
• Cross-platform migration from Oracle to MySQL/MariaDB/PostgreSQL/Aurora
• Support the creation, maintenance, and implementation of procedures regarding how problems are identified, received, documented, distributed, and corrected
• Ensures project documentation is complete, current, and stored appropriately
• Manages day-to-day project and scope changes
• Communicate and coordinate database changes, backups, and downtime to users
• Identifies potential security issues and recommend strategies to ensure database security
• Research and evaluate new technologies
• Proactively monitor systems for optimum performance and capacity constraints
• Establish standards and best practices for SQL
• Interact with and coach developers in SQL scripting
• Perform database backup and recovery
• Provides 24x7 support for enterprise database systems

• Must provide mentoring and training to other staff members
• Write procedural documentation including requirements for databases
• Develop and coordinate knowledge transfer
• Establishes enterprise-wide uniform infrastructure, including supporting defined departmental content processes and creating guidelines for content deployment
• Interacts with business units to gather, define, and organize the delivery of business solutions Data
• Modeling, design & implementation based on established standards
• Automate manual tasks

• Candidate with a college degree and relevant work experience
• 7+ years of hands-on DBA experience with Oracle, MySQL, MariaDB, and PostgreSQL and supporting tools
• Strong experience with Linux is required, including command-line editors, scripting (shell, Python, Perl, etc.)
• Experience in database performance tuning and strong SQL tuning skills
• Experience in database and cross-platform upgrades required Experience in all aspects of the software development lifecycle including requirements gathering, design, coding, testing and production support
• Must be familiar with RDBMS concepts, practices, and procedures
• Must have knowledge of network connectivity
• Extensive experience with Export/Import, Backup and Recovery
• Extensive experience with Database Replication Master/Slave, Master/Master (BDR)
• Extensive experience with MySQL (MariaDB, Percona) Galera cluster
• Experience with MaxScale
• Proficient in SQL Language
• Knowledge of ServiceNow, or similar Ticket Management Software
• Knowledge of SAN infrastructure including HP and NetApp
• Ability to work on projects at a time
• Knowledge of middle-tier application servers
• Strong troubleshooting and problem resolution skills
• Good knowledge of Data Modeling
• Knowledge of XML and JDBC

• Experience of NoSQL databases (Cassandra, Oracle NoSQL, MongoDB) is a plus
• Certifications on MySQL, PostgreSQL, and Aurora

Role & Responsibilities -:

1. Strong knowledge of PHP web frameworks such as Laravel
2. Knowledge of object oriented PHP programming & Restful API
3. Strong knowledge of Akamai CDN, Redis, AWS services
4. Understanding of LAMP and MVC design patterns
5. Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3, JS

framework

1. Knowledge of Payment Gateway
2. Familiarity with MySQL/ PgSQL/ Mongo databases
3. Proficient understanding of code versioning tools, such as Git
4. Understanding accessibility and security compliance
5. Understanding fundamental design principles behind a scalable application.
6. User authentication and authorization between multiple systems, servers, and

environments

Skills:

1. Building and maintenance of applications.
2. Extensive understanding of project management processes, principles and

methodologies.

1. Writing maintainable and high performance code.
2. Keeping up with the trends in technology and being up for challenges.

Qualification:

1. B. Tech in Computer Science or Bachelor’s degree in Engineering
2. Master’s degree in Computer Applications /M Tec. would be preferred.

Build reusable APIs for our client-facing apps in Node.js

Create and maintain scalable infrastructure leveraging modern cloud platforms Write tests and documentation as you implement features with your team Maintain expertise in current and emerging technologies and tools

4+ years’ Experience with NodeJS

BS degree or higher in Computer Science or Engineering Experience documenting and testing RESTful APIs

Experience working with databases in PostgreSQL, MongoDB or Redis

Experience and enthusiasm for working collaboratively with others in an Agile environment