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junior software engineer

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.net full stack developer

back end developer

K2K Software Development

<div>
 <p>
  Company Overview:
 </p>
 <p>
  Join our innovative team at K2K Development, where we develop cutting-edge web applications that are featured in the Forbes Top 50 with our Partners. We are dedicated to transforming the digital landscape and are looking for a talented Backend Web Developer to help lead our data integrations and contribute to our success.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Responsibilities:
 </p>
 <ul>
  <li>
   Develop High-Quality Applications: Craft sophisticated web applications that meet comprehensive business requirements from concept to deployment.
  </li>
  <li>
   Full-Spectrum Web Development: Engage in all stages of web development, from UI/UX design to developing high-performance API endpoints.
  </li>
  <li>
   Project Leadership: Take full ownership of backend development projects, ensuring efficient and timely execution.
  </li>
  <li>
   Collaborative Teamwork: Work closely with Product Managers and Senior Developers to align development with company vision and customer needs.
  </li>
  <li>
   Innovative Problem-Solving: Utilize analytical and innovative thinking to overcome challenges and deliver solutions.
  </li>
  <li>
   Continuous Improvement: Actively participate in code reviews, optimize backend processes, and maintain high coding standards.
  </li>
  <li>
   Data/API Integration Leadership: Lead the integration of complex data sources into a Forbes Top 50 featured product, enhancing functionality and user experience.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  Basic Qualifications:
 </p>
 <ul>
  <li>
   Bachelor&rsquo;s degree in Computer Science, Engineering, or related field, or equivalent practical experience.
  </li>
  <li>
   Minimum 1 year of professional experience in backend development using Node.js and TypeScript.
  </li>
  <li>
   Demonstrated ability to write clean, well-structured, and efficient code.
  </li>
  <li>
   Proficiency with tools such as, GitHub, Trello and Linear for version control and project management.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  Preferred Qualifications:
 </p>
 <ul>
  <li>
   2+ years of experience in backend development, particularly with Node.js and TypeScript.
  </li>
  <li>
   Experience with Docker, Docker Compose, and API integration in a plugin-structured system.
  </li>
  <li>
   Familiarity with RESTful and SOAP APIs, Webhooks, and modern authentication mechanisms.
  </li>
  <li>
   Practical knowledge of CI/CD pipelines, containerization, and server maintenance.
  </li>
  <li>
   Strong command of English, capable of high-level technical research and documentation.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  What We Offer:
 </p>
 <ul>
  <li>
   A dynamic, fast-paced work environment with a diverse and passionate team.
  </li>
  <li>
   Opportunities for professional growth and development.
  </li>
  <li>
   Competitive salary and benefits package.
  </li>
  <li>
   Flexible working hours and hybrid work options.
  </li>
 </ul>
 <p>
  <br/>
 </p>
</div>


Back End Developer

oBilet

<div><p>Founded in 2012, Obilet.com is a leading travel and tourism platform offering comprehensive services, including bus, flight, and ferry ticketing, along with hotel bookings and car rentals.</p><p></p><p>
As the undisputed market leader in Turkey across both B2B and B2C segments, the platform supports bus carriers with its best-in-class SaaS Inventory Management System (IMS), attracts 25 million monthly visitors, and boasts 15 million app downloads.</p><p></p><p>
Projected to mediate over 50 million transactions in 2025, Obilet is expanding internationally to become one of the largest global players in the travel tech industry.</p><p></p><p><b>
Main responsibilities will include:</b></p><ul><li><p>
As a backend developer, you will take end-to-end responsibility for developing and delivering new features of obilet.com's B2B applications and business API along with the current system's maintenance</p></li><li><p>
Contributing to design and development phases for obilet application's B2B backend and SOAP and Restful business API</p></li><li><p>
Identifying, investigating, and implementing applicable solutions to business requirements</p></li><li><p>
Ensure obilet B2B application and business API meet current standards &amp; accessibility requirements</p></li><li><p>
Following industry best practices in design and product development, also taking initiative in recommending possible enhancements</p></li></ul><p><b><br>
To be successful in this role, you need to have:</b></p><ul><li><p>
BS degree in Computer, Electronics Engineering or equivalent departments</p></li><li><p>
2+ years of experience in developing and maintaining products with real-world usage in .Net Framework and .Net Core</p></li><li><p>
Experience in web services - RESTful services with .NET Core API and Soap Xml web services with .Net Framework</p></li><li><p>
Experience in developing web applications with critical mobile compatibility and cross-browser compatibility requirements</p></li><li><p>
Experience in web services - RESTful services with ASP NetWeb API and Soap Xml web services with .Net Framework</p></li><li><p>
Good knowledge of MSSQL Server</p></li><li><p>
Experience with Docker, AWS Services, Elastic Cache, Open Search, SQS, RDL Reporting Tool is a plus</p></li><li><p>
Devops, CI-CD experience, Version Control Tool (Git/Github)</p></li><li><p>
Strong English skills to follow the technical literature is a plus</p></li></ul><p></p><p><b>
What we offer:</b></p><p>
 <b>Remote Working: </b>We work remotely, but our offices are always open for us</p><p>
 <b>Birthday Leave:</b> In the month of our birthday, we can take a day off on any day we choose</p><p>
 <b>Flexible Working Hours: </b>On the days we come to the office, we set our own start time with our flexible working model</p><p>
 <b>Happy Hours &amp; Company Events:</b> With our New Year&rsquo;s Event, #obiletfest and Happy Hours, we not only strive for success but also have a lot of fun along the way</p><p>
 <b>Self-Development: </b>Your growth is our focus, with access to online learning platforms like Udemy and various training programs designed to support your professional development</p><p>
<b> Best-in-class Teammates: </b>We are all the best in our fields and we are confident about it</p><p>
<b> No Dress Code:</b> We have no dress code. We can set the trend in our office with our style</p><ul><li><b>Free Snacks &amp; Drinks:</b> Surprise breakfasts, desserts and fruits might be waiting for us in our office</li></ul></div>

Backend Developer

Lokalde

<div>
 <p>
  <strong>
   Backend Developer (Python Django)
  </strong>
  &ndash; Join Our AI Startup
 </p>
 <p>
  Location: Zeytinburnu / On-site | Full time
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are a fast moving AI startup building products and services for global clients. We are looking for a backend developer who writes clean scalable and reliable code and knows how to keep production calm on a Friday
 </p>
 <p>
  ⸻
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Tech Stack
  </strong>
 </p>
 <p>
  Python
 </p>
 <p>
  Django Framework
 </p>
 <p>
  PostgreSQL
 </p>
 <p>
  Celery
 </p>
 <p>
  Redis
 </p>
 <p>
  Elasticsearch
 </p>
 <p>
  AWS EC2
 </p>
 <p>
  AWS S3
 </p>
 <p>
  <br/>
 </p>
 <p>
  ⸻
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Bonus Points
  </strong>
 </p>
 <p>
  API design and optimization (REST)
 </p>
 <p>
  Docker and containerized deployments
 </p>
 <p>
  CI CD pipelines (GitHub Actions GitLab CI etc)
 </p>
 <p>
  Unit and integration testing culture
 </p>
 <p>
  <br/>
 </p>
 <p>
  ⸻
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Who You Are
  </strong>
 </p>
 <p>
  You believe a well structured database schema is an art form
 </p>
 <p>
  You can debug a race condition without losing your sanity
 </p>
 <p>
  You sleep better knowing every query is optimized
 </p>
 <p>
  You treat logging and monitoring as part of the build not an afterthought
 </p>
 <p>
  <br/>
 </p>
 <p>
  ⸻
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What We Offer
  </strong>
 </p>
 <p>
  Global scale projects with real impact
 </p>
 <p>
  Flexible working hours
 </p>
 <p>
  Competitive salary
 </p>
 <p>
  Small team big impact culture
 </p>
</div>


Backend Developer (Python Django)

Fairmoney

<div><p>FairMoney is a credit-led mobile banking platform for emerging markets. The company was launched in 2017, operates in Nigeria and raised close to &euro;50m from global investors like Tiger Global, DST &amp; Flourish Ventures. You will be working as an Engineering Manager as a part of our Technology &amp; Engineering division, which is now composed of 75+ people in Nigeria, France, Germany, Poland, Turkey and remotely across the globe.</p><p>
This is a unique opportunity to be part of the core engineering team of a fast-growing fintech poised for more rapid growth in the coming years.</p><p>
We are looking forward you to working on:</p><ul>
<li>Developing high-quality features by working with our Product team to better serve customers.</li>
<li>Building a platform on which each market can plug its specific features while maintaining a solid common core product.</li>
<li>Tackling complex financial processes with the right patterns and appropriate solutions.</li>
<li>Helping drive the architecture and technology choices that enable a world-class experience for our customers.</li>
<li>Being responsible for designing, developing, and deploying medium to large-sized projects.</li>
<li>Helping define engineering best practices and providing technical mentorship to other members of the engineering team.</li>
<li>Contributing to continuous improvements to an infrastructure that can handle millions of clients.</li>
<li>Analyzing and improving efficiency, scalability, and stability of monitoring, continuous integration, and platform integration.</li>
</ul><p><b>Technical Stack</b></p><br>
<ul>
<li>Our customer-facing product is an Android application.</li>
<li>It communicates with a Ruby on Rails or Go-lang backend (sidekiq, rspec).</li>
<li>Our ML pipeline is an API-flask (Python).</li>
<li>We are hosted on AWS: we use Elastic Beanstalk, an RDS Aurora Mysql database, S3, Kinesis (data-stream, firehose).</li>
<li>Prototype of a data warehouse on GCP (GCS, BigQuery, Cloud Composer).</li>
<li>We have automated tests that run on Travis.</li>
</ul><p></p><p><b>Requirements</b></p><ul>
<li>6+ years of experience in backend software development mostly with Go-lang (and/or Java/C++).</li>
<li>2+ years of experience contributing to the architecture and design (architecture, design patterns, reliability, and scaling) of new and current systems.</li>
<li>You have an Engineering or University Diploma in computer science (we are also open to self-taught with 5 years of experience in computer engineering).</li>
<li>You are able to code in a backend languages (Python, Java, Javascript, Golang, C#).</li>
<li>Understanding of AWS or GCP cloud providers.</li>
<li>Understanding the architecture and function of multiple technology teams working together to build systems.</li>
</ul><p><b>Benefits</b></p><ul>
<li>20 days paid vacation, Sick &amp; Public Holidays to B2B contractors</li>
<li>Family Leave (Maternity, Paternity)</li>
<li>Training &amp; Development budget</li>
<li>Paid company business trips (not mandatory)</li>
<li>Fully Remote, Work from Anywhere (timezone must have partial overlap with CET)</li>
</ul><p><b>Recruitment Process</b></p><ul>
<li>HR call 15-30 minutes.</li>
<li>Technical interview with back-end focused.</li>
<li>Stakeholder interview with our tech leaders.</li></ul></div>

Software Engineer - Backend (Go-lang)

Qlub

<div><p><b>Who are we?</b><br>
Qlub is revolutionizing the dining experience with ultra-fast, seamless payment solutions. Our technology enables customers to pay in seconds by scanning a QR code &ndash; no app download required. From Pay-at-Table QR payments and Digital Menus to Order-and-Pay tech, Payment Links, and SoftPOS terminals, Qlub streamlines the entire payment process, making it faster and more convenient for both diners and restaurants. Plus, splitting the bill with friends has never been easier!</p><p>
We help restaurants focus on what they do best: providing exceptional dining experiences. By removing payment hassles, we increase table turnover and improve operational efficiency, boosting profits. Features like analytics, instant tipping and reviews, and automated accounting empower restaurants to thrive in today&rsquo;s digital-first world.</p><p></p><p><b><br>
The Role</b><br>
We're looking for a <b>Backend Developer </b>to support the development of panel platforms.</p><p>
You'll work on payment integrations, dashboards, order flows, table management, review systems, and more. Your work will directly impact the experience of both diners and restaurant staff.</p><p><b>
You&rsquo;ll be responsible for:</b></p><ul>
<li>Developing backend services and APIs</li>
<li>Collaborating with frontend, design, and product teams</li>
<li>Writing clean, efficient, well-documented code</li>
<li>Participating in code reviews</li>
<li>Troubleshooting, debugging, and improving system performance</li>
<li>Managing notification and email systems</li><br>
</ul><p></p><br>
<p><b>We're looking for someone with:</b></p><ul>
<li>3&ndash;5 years of backend development experience</li>
<li>Solid TypeScript and Node.js knowledge</li>
<li>Experience with NestJS or similar frameworks (Express, Fastify)</li>
<li>Experience working with PostgreSQL</li>
<li>Working knowledge of Redis</li>
<li>Understanding of RESTful API best practices</li>
<li>Exposure to CI/CD workflows</li>
<li>Awareness of security, rate-limiting, and performance optimization</li>
Basic understanding of job/message queues (e.g., BullMQ)<br>
<li>
</li></ul><p><b>Why join qlub?</b></p><ul>
<li>Be part of an exciting, fast-paced environment, where you can grow the business from an early-stage start-up into a global organization;</li>
<li>Drive growth and tailoring of fast-evolving new products and features;</li>
<li>Work with highly motivated people, enthusiastic about improving the customer experience at table-service restaurants.</li><br>
</ul><p></p><br>
<p>Sounds like you? Are you excited by this opportunity? If so, <b>&ldquo;Apply now&rdquo;</b>.</p></div>

Turkish Technology

<div>
 <p>
  <strong>
   Who We Are?
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are the technology leader of the aviation and air cargo industry in Turkey! We are an innovative and successful team that does not fit into the mold, constantly enlarges its target and pushes the standards in global competition...
 </p>
 <p>
  <br/>
 </p>
 <p>
  We design and develop technology with the spirit of R&amp;D, where human, engineering and software are the most perfect components. We use trend technologies such as big data, cloud computing, artificial intelligence, fintech, cybersecurity and blockchain which we can compete in the sky. We move forward confidently and successfully with the power of our knowledge and experience into the future.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Obviously, We don't dream too much as &ldquo;what will happen in the future?&rdquo;, because we are designing the future from today...
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are a strong team of more than 1600 valuable talents that shed their minds in offices equipped with modern technology in Istanbul, Ankara and Izmir. Team play is our favorite system! We focus on the same goal &ndash; winning &ndash; and continue to work together with the motivation to achieve this.
 </p>
 <p>
  <br/>
 </p>
 <p>
  If you want to have your name in the success story of a globalizing company, we look forward to your application to the winners team!
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   About the team:
  </strong>
 </p>
 <p>
  You will be joining a newly formed and fast-growing team that is dedicated to innovation and excellence. This team leverages the latest technologies and adheres to modern development standards to create state-of-the-art logistics solutions. Designed for global use, our products aim to set new standards in the industry, solving complex challenges with precision and scalability. By joining this forward-thinking team, you will have the opportunity to contribute to a project with a global vision and a strong focus on quality and impact.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   About the Job
  </strong>
 </p>
 <p>
  The person who will take part in development team by reporting to the manager in the relevant solution department of our company, to carry out backend development activities and to work in coordination with other departments. Also will take responsibility of front end development in case of need.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Position located at:
  </strong>
  Libadiye Office
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   As a Backend Developer, you will
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Work in the design, application development and integration area in software projects
  </li>
  <li>
   Contribute to all aspects of development from technology stack and workflow to coding standards and best practices.
  </li>
  <li>
   Determine non-functional requirements for new software or applications
  </li>
  <li>
   Revise and maintain the applications in compliance with the new needs arising within the software life cycle
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   How do we describe the perfect match?
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Strong coding skills with at least 10 years of experience of building large scale enterprise level software systems using Java technology
  </li>
  <li>
   A strong foundation of computer science fundamentals in object-oriented design, data structures, algorithms and design patterns
  </li>
  <li>
   Hands-on experience in Spring Framework and Spring Boot
  </li>
  <li>
   Experience in web service development &amp; integration.
  </li>
  <li>
   Experience of multithreading, concurrency &amp; parallel programming , designing scalable systems or complex distributed systems is a huge plus
  </li>
  <li>
   Experience in databases RDMS (Oracle, MSSQL, etc.), No SQL (Couchbase, MongoDB, etc.)
  </li>
  <li>
   Preferred knowledge of microservice architecture
  </li>
  <li>
   Knowledge of the JavaScript libraries like React, Angular, and Vue; experience in at least one of them preferred
  </li>
  <li>
   Good command of web application development tools
  </li>
  <li>
   Preferred knowledge in cloud technologies
  </li>
  <li>
   Familiarity with Kafka, ActiveMQ
  </li>
  <li>
   Proven analytical aptitude, critical thinking and strong perceptive skills
  </li>
  <li>
   Strong in problem solving and relationship management competencies
  </li>
  <li>
   Able to work in a complex and fast-paced environment and to manage multiple projects at one time
  </li>
  <li>
   Having regular reporting habits and attaching importance to documentation
  </li>
  <li>
   Good understanding UX/UI principles
  </li>
  <li>
   Good problem-solving skills
  </li>
  <li>
   Excellent verbal communication skills
  </li>
  <li>
   Good interpersonal skills
  </li>
  <li>
   Graduated at related fields
  </li>
  <li>
   Good command of the English language
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Benefits Of Working With Us
  </strong>
 </p>
 <p>
  <em>
   In addition to having the opportunity to grow and be challenged, and to be part of a life, our people enjoy a range of rewarding benefits:
  </em>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Flexible working arrangements, generous personal, parental and cultural leave
  </li>
  <li>
   Competitive remuneration
  </li>
  <li>
   Free and subsidized health and wellbeing services
  </li>
  <li>
   Discounts on a wide range of products and services
  </li>
  <li>
   Career development opportunities
  </li>
  <li>
   A buddy who will guide and accompany you during your onboarding process
  </li>
  <li>
   A great number of online courses and technical trainings that will support your development
  </li>
  <li>
   Personalized development plan for you
  </li>
  <li>
   Using CED &amp; Pass Flight for travelling experience with your family
  </li>
  <li>
   Support payment for childcare
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Be Yourself
  </strong>
 </p>
 <p>
  We value the unique backgrounds, experiences and contributions that each person brings to our team and encourage and celebrate diversity.
 </p>
 <p>
  <br/>
 </p>
 <p>
  If you would like to get to know more about Turkish Airlines Technology, please follow us on Instagram and LinkedIn;
 </p>
 <p>
  https://www.instagram.com/turkishairlinstechnology/
 </p>
 <p>
  https://www.linkedin.com/company/thyteknoloji/
 </p>
</div>


Logistics Software Backend Developer (Libadiye Office)

Fusion Growth Partners

<div><div><div><p><b>Senior Full Stack Developer</b></p></div><div><p><b><br>
Location:</b> Remote<br>
<b>Employment Type:</b> Full-Time</p></div><div><p><b><i>
To Apply &ndash; YOU MUST FOLLOW PROCESS AT BOTTOW OF AD</i></b></p></div><div><p><b><br>
About Fusion Growth Partners</b></p></div><div><p><br>
Fusion Growth Partners is a growth accelerator for real estate professionals. We provide high-performing agents with a full backend operational systems, including traditional marketing, digital marketing, coaching, and structured business planning to help them grow and scale their business.</p></div><div><p><b><br>
Position Overview</b></p></div><div><p><br>
We are seeking a <b>Senior Full Stack Developer</b> to lead the design, development, and optimization of internal and external software solutions that power Fusion&rsquo;s operations and marketing automation systems. This individual will manage and collaborate with a team of both internal and contract developers, and report directly to the COO.</p></div><div><p><b><br>
Key Responsibilities</b></p></div><div><ul><li><div><br>
Lead the architecture, development, and deployment of full-stack applications used by internal teams and clients.</div></li></ul></div><div><ul><li><div><br>
Oversee development across platforms including Zoho Creator, Zoho CRM, Vibe Coding tools (Cursor, Replit etc), and agentic automation frameworks (N8N, LangChain, AutoGen, CrewAI).</div></li></ul></div><div><ul><li><div><br>
Translate business needs from leadership into technical specifications and efficient product builds.</div></li></ul></div><div><ul><li><div><br>
Maintain clean, scalable, well-documented code across front-end and back-end systems.</div></li></ul></div><div><ul><li><div><br>
Establish best practices and development standards for a small, cross-functional team.</div></li></ul></div><div><ul><li><div><br>
Collaborate closely with the COO to align development priorities with company strategy.</div></li></ul></div><div><ul><li><div><br>
Integrate third-party APIs and tools where necessary and ensure data consistency and security.</div></li></ul></div><div><p><b><br>
Qualifications</b></p></div><div><ul><li><div><br>
8+ years of professional software development experience, with strong full-stack capabilities.</div></li></ul></div><div><ul><li><div><br>
Deep proficiency in both front-end (e.g., React, Vue, HTML/CSS/JS) and back-end technologies (e.g., Node.js, Python, or equivalent).</div></li></ul></div><div><ul><li><div><br>
Proven leadership experience, including management of developers or engineering teams.</div></li></ul></div><div><ul><li><div><br>
Experience building or integrating with marketing automation systems or CRMs (Zoho strongly preferred).</div></li></ul></div></div><div><div><ul><li><div><br>
Strong understanding of data flow, permissions, and user experience in SaaS environments.</div></li></ul></div><div><ul><li><div><br>
Experience working with low-code/no-code platforms (e.g., Zoho Creator, N8N)</div></li></ul></div><div><ul><li><div><br>
Familiarity with real estate technology or marketing platforms is a plus.</div></li></ul></div><div><ul><li><div><br>
Excellent organizational and communication skills; detail-oriented and highly accountable.</div></li></ul></div><div><ul><li><div><br>
Comfortable in a full-time remote environment with direct alignment to executive leadership.</div></li></ul></div><div><p><b><br>
Note:</b> This is a full-time role. Applicants must be fully dedicated to Fusion Growth Partners and not concurrently engaged in other freelance, part-time, or consulting work. Core working hours are based on <b>Pacific Time (PT)</b>, and candidates must be consistently available and online during these hours. <b>We are open to offshore candidates.</b></p></div><div><p><b><br>
What We Offer:</b></p></div><div><ul><li><div><br>
Competitive Salary</div></li></ul></div><div><ul><li><div><br>
Opportunities for Growth</div></li></ul></div><div><ul><li><div><br>
Bonus and Profit Share possibilities</div></li></ul></div><div><p><b><br>
Next Steps:</b> To be considered you must fill out our pre-interview from. If you do not fill out the form, we will not contact you. Everyone who does take the time to completer the form will be contacted.</p></div><div><p><b><br>
Please fill out the attached form in as much detail as possible</b>. We would like to find out more about you in detail with specific information related to job requirements so that we efficient in our process for all concerned. https://zfrmz.com/gItmvMxsOUJf8bp3Euq7</p></div><div><p><br>
For more information about Fusion Growth Partners, visit us at www.growwithfusion.com.</p></div></div></div><div></div>

Full Stack Developer

Explore 312+ Back end developer in Istanbul this September. Find roles across top companies and apply now to boost your career.

312 back end developer jobs IN Istanbul

Back End Developer

Backend Developer

Backend Developer (Python Django)

Software Engineer - Backend (Go-lang)

Backend Developer

Logistics Software Backend Developer (Libadiye Office)

Full Stack Developer