SQL Developer

We are a dynamic and innovative technology company dedicated to delivering cutting-edge solutions that empower businesses and individuals. As we continue to grow and expand our offerings, we are seeking a coding fanatic, who is interested in working on and learning new technologies. 

Position - Backend developer 

Job type - Freelance or on contract 

Location - Remote 

Roles and Responsibilities:

• Plan,create and test REST APIs for back-end services such as authentication and authorization.
• Deploy and maintain backend systems on the cloud.
• Research and develop solutions for real life business problems.
• Creating and maintaining our apps' essential business logic, providing correct data processing and flawless user experiences.
• Database design, implementation, and management, including schema design, query optimisation and data integrity.
• Participating in code reviews, providing constructive input, and ensuring that code quality standards are met.
• Keep abreast of industry developments and best practices to bring new solutions to our initiatives.

Required skills and experience - 

Must have skills : -

• Bachelor’s degree in computer programming, computer science, or a related field.
• 3 + years of experience in backend development.
• Proficient in Python,Mongodb,postgres/sql,Django and Flask
• Knowledge on nginx.
• C++/C +Cython for creating python modules
• Knowledge on Redis
• Familiarity with using AI provider apis and prompt engineering
• Experience in working with linux based instances on the cloud.
• Strong problem solving and verbal and written communication skills.
• Ability to work independently or with a group.

Good to have skills :- 

• Experience in node.js and Java 
• AWS and Google cloud knowledge.

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

Required technical skills

• 3+ years of experience as a software developer using GoLang with > 3 years prior experience in an Object Orientated language
•  At least 1 year working experience on Linux operating system

Nice to have:

• Experience in the finance industry or knowledge of financial products/markets
• BA/BS in Computer Science or equivalent practical experience
• Java experience
• Experience with multi-tier application architecture and streaming systems
• Message streaming using Kafka
• Knowledge and experience adhering to software development life cycle best practices including test-driven development, unit testing discipline, agile development, and CI/CD strategies
• Working knowledge of building and deploying distributed systems      
• Experience with cloud technologies like Kubernetes, Docker, AKS

Job Description:

• To resolve the tickets raised as per the defined standards of time, cost, and quality for increased customer satisfaction.

Skills and Experience

• Good SQL & PLSQL knowledge.
• Good Unix basic commands knowledge.
• Good Unix scripting knowledge will be an advantage.
• ANSI SQL
• Unix - Others/
• Experience - Fresher

What we look for:

• Strong analytical and problem-solving skills
• Hands on programming work in Advance Java, Springs, Spring Boot framework,
• Ability to independently work on complex business requirements 
• Ability to communicate clearly and concisely 

What will you do:

You will independently work on designing and developing solutions that solve customer’s business problems. You will own the assigned problem statements, evaluate multiple technical approaches and use design-thinking to take independent decisions while implementing the solution. You will also guide junior members of the team and participate in code and design review process.

Who should apply:

You have -

• a graduate degree in BE, BTech, MTech, MCA from a reputed institute
• 5 to 7 years of hands-on experience in programming Core Java 8, Spring Boot, Spring Rest Template, Spring Security, Spring Data, Spring JDBC Template
• Good to Have experience/knowledge on Docker, Oracle, MongoDB, Quartz Scheduler, Shell scripting
• Working experience with Windows, Linux environments

The candidate will need to demonstrate previous experience of taking a client's requirements and translating them into technical specifications. The candidate will have to have previous examples of how he/she has worked with internal customers and technical peers.

The ideal candidate should have 3 to 5 years’ experience within a web application development environment.

Experience with PHP, HTML, CSS, MySQL, SOAP/REST, JavaScript, AJAX, etc. is a must. Following are the key area we are expecting you to have strong command on:

• Analytical Skills
• Algorithms

Responsibilities and Duties

• Development of software extensions to vTiger CRM/Drupal/WordPress and any other PHP based application
• Development of integration between CRM and ERP systems provided by Target Integration and any other system using their APIs
• Development and maintenance of code in Gitlab (In-house git server)
• Managing tickets and updating them regularly in Redmine (Project and Ticket Management Platform)
• Providing solutions to the pre-sales team on new projects
• Supporting the existing development team

Qualifications and Skills

• Coming up with ideas to help grow the team
• Data Structure
• Data Modelling Concepts
• Object-Oriented Design Principles and Concepts
• MVC – Pattern in Depth.
• Aware of Various other commonly used design patterns like Factory, Abstract Factory, etc.
• PHP, MYSQL, HTML, CSS, JS, JSON, Webservices
• Object-Oriented PHP
• SQL In general, Procedure, triggers, functions, etc.
• Query Designing.
• Thorough understanding of HTTP.
• Version Control (specifical git) and bug tracking software knowledge are important.

Benefits

• Linux system administration experience will be useful
• Experience of working on at least two of Joomla/Drupal/vTiger CRM or Sugar CRM is a must
• Strong understanding of relational database design
• Experience in creating professional-looking web interfaces using CSS and HTML
• Understanding of business processes
• Ideally, they should have worked on CRM/ERP/Accounting applications
• Excellent written and spoken communication skills

Job Type: Full-time