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Senior Django Backend Engineer – API Realignment & Production Stabilization (April 2026 Release) We are finalizing the backend stabilization and API realignment of a large community platform (messaging, events, payments, communities). The refactor is already deployed on test infrastructure (Dockerized environment with load balancer, application server, and database server). Production release is scheduled for April 2026. This is not a rewrite. This is a controlled backend realignment and production hardening mission. Mission Scope 1. API Alignment and Contract Stabilization * 53 endpoints currently consumed by the frontend * 37 identified serializer / _id mismatches * 9 critical missing endpoints (P0 scope) * Extended backlog (up to approximately 49 items including endpoints, triggers, and admin features) * Strict backward compatibility required * Swagger/OpenAPI must become the single source of truth 2. Database and Migration Safety * PostgreSQL schema alignment * Migration validation (no data loss) * Foreign key and constraint normalization * No breaking database changes without mitigation strategy 3. Notifications and Signals * Review and stabilize existing triggers * Prevent duplicate or recursive signals * Ensure atomic transactions 4. Admin Console (MVP) * RBAC review * Moderation endpoints * Structured logging * Minimal supervision dashboard * Cleanup of existing admin endpoints 5. Performance and Query Hygiene * Identification of N+1 queries * Stabilization of critical endpoints * Safe optimization without architectural rewrite * Redis and Celery validation where applicable 6. Documentation and CI/CD * Complete Swagger coverage * Basic regression safety strategy * Docker production hardening * Health checks and validation * Deployment validation Constraints * No architectural revolution * No full rewrite * Backward compatibility is mandatory * Stability takes priority over feature expansion * Target production readiness: April 2026 Required Profile * 5+ years of Django experience * Strong Django REST Framework expertise * Experience stabilizing legacy backends * PostgreSQL migration expertise * Docker production experience * Swagger/OpenAPI experience * Familiarity with Celery and Redis Bonus * Experience with real-time systems (Channels) * CI/CD experience * Experience working with an existing production infrastructure Technical discussion required before selection.
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156 freelancere byder i gennemsnit $1.148 USD på dette job

Hi there, I’ll help stabilize and realign your Django backend without a rewrite, focusing on backward compatibility and production safety for the April 2026 release. My approach starts with locking the API contracts to the Swagger/OpenAPI spec as the single truth, aligning 53 endpoints and fixing 37 serializer/id mismatches while addressing the 9 P0 gaps. I’ll validate PostgreSQL migrations to prevent data loss, normalize constraints, and ensure safe, non-breaking changes. I’ll review triggers, prevent duplicates, and enforce atomic transactions for notifications. I’ll harden the Admin Console with RBAC, structured logging, and a minimal supervision dashboard. Performance work will target N+1 reductions and safe endpoint stabilization, with Redis and Celery sanity checks. Documentation and CI/CD will emphasize full Swagger coverage, health checks, and deployment validations, plus Docker production hardening. The result is a stable, maintainable platform ready for a controlled production rollout, not a rewrite. What is your preferred plan for maintaining backward compatibility if a critical API contract must evolve during the stabilization window? Best regards, Muhammad Awais
$1.500 USD på 12 dage
8,4
8,4

I am a seasoned Django Backend Engineer with over 5 years of experience, specializing in API stabilization and legacy backend improvements. My expertise aligns well with your project, including a strong command of the Django REST Framework, PostgreSQL migration, and Docker production environments. I have a track record of ensuring backward compatibility and stability, which is critical for your scheduled April 2026 release. In my previous work, I have addressed API contract stabilization challenges and ensured strict adherence to Swagger/OpenAPI standards. My approach includes identifying and remediating mismatched serializers and preventing database issues via foreign key and constraint normalization. I am skilled in optimizing performance, particularly by identifying N+1 query patterns and leveraging tools like Redis and Celery for efficient task management. I also have proficiency in CI/CD processes to secure deployment validation while maintaining system integrity. I am interested in discussing how my expertise can best serve your goals. Could you share more about your current CI/CD pipeline setup? Looking forward to a potential collaboration.
$1.500 USD på 15 dage
8,4
8,4

⭐⭐⭐⭐⭐ Senior Django Backend Engineer for API Realignment & Stabilization ❇️ Hi My Friend, Hope you are doing well. I've reviewed your project details and I see you're looking for a Senior Django Backend Engineer to stabilize your backend and realign APIs. You don't need to look any further; Zohaib is here to help you! My team has successfully handled 50+ similar projects focused on backend engineering. I will ensure a smooth realignment and stabilization process while maintaining backward compatibility and high performance. ➡️ Why Me? I have over 5 years of experience in Django development, with a strong focus on backend stabilization and API management. My skills include working with Django REST Framework, PostgreSQL migrations, and Docker environments. I also have a solid understanding of Swagger/OpenAPI documentation, ensuring that your project remains clear and organized. ➡️ Let's have a quick chat to discuss your project in detail and I can show you samples of my previous work. I'm excited to work together! ➡️ Skills & Experience: ✅ Django Development ✅ Django REST Framework ✅ API Alignment ✅ PostgreSQL Migration ✅ Docker Deployment ✅ Swagger/OpenAPI ✅ Celery Integration ✅ Redis Management ✅ Performance Optimization ✅ Backend Stabilization ✅ Legacy System Management ✅ Documentation Waiting for your response! Best Regards, Zohaib
$900 USD på 2 dage
7,8
7,8

Hello, With over 5+ years of specialized experience in Django, specifically Django REST Framework, and PostgreSQL, I believe I can provide the exact expertise you need for this project. My profile at Live Experts LLC stands as a testament to our ability to deliver and perform exceptionally well even on high-stakes projects like yours. The meticulous nature of a controlled backend realignment poses no challenge for me; instead, it inspires me to ensure that no detail is overlooked. In addition to leaving no stone unturned in providing forward compatibility akin to P0 criticality, my skill set also includes knowledge of Docker production, working with Swagger, Celery, Redis, Channels (for real-time systems), CI/CD and prior experience with existing production infrastructure. Even more so, I am confident my mastery in performance optimization will drive efficiency in your platform without demanding architectural redesign. Towards your goal of an April 2026 release, my team at Live Experts will prioritize stability over feature expansions whilst integrating them seamlessly. Moreover, our proficiency in software development, big data analysis and various engineering tools will prove invaluable while ensuring the PostgreSQL schema alignment, RPGSQL migration validation or implementing structural logging et al. In conclusion, Mirza Muhammad of Live Experts stands able and ready to face the challenges your project offers with the level-h Thanks!
$1.500 USD på 5 dage
7,3
7,3

Greetings, Before we proceed, are the 9 P0 endpoints already specified with expected request and response contracts? Also, is Swagger partially implemented or does it need full reconstruction as the source of truth? I understand this is a backend realignment and stabilization mission, not a rewrite. The focus is API contract alignment, serializer mismatches, safe PostgreSQL migrations, signal stability, admin MVP cleanup, query optimization, and production hardening ahead of April 2026. Backward compatibility and stability are mandatory. Our team includes senior Django and DRF engineers with deep experience stabilizing legacy systems, normalizing schemas, resolving N+1 issues, securing atomic transactions, and hardening Docker based deployments with Redis and Celery. We work carefully with staged migrations, regression safety checks, and documented OpenAPI contracts. We propose starting with an API audit and schema validation phase, then addressing P0 endpoints and serializer conflicts before performance tuning and deployment validation. Let us connect for a technical discussion. Current bid is a placeholder. Regards Yasir LEADconcept PS: Let me know, if you want to see our team past work to determine our skills/expertise or past customer's references.
$1.125 USD på 7 dage
7,2
7,2

With over 10 years of web and mobile development experience, specifically in Django, I understand the importance of API realignment and production stabilization for your community platform. Your mission scope aligns perfectly with my expertise, as I have successfully stabilized and aligned APIs on numerous projects, ensuring strict backward compatibility and adherence to Swagger/OpenAPI standards. I have a proven track record in database schema alignment, migration safety, and performance optimization, all crucial aspects of your project requirements. My experience with PostgreSQL, Docker, and Redis/Celery allows me to confidently address the technical challenges you are facing. Having worked on similar projects in the past, including legacy backend stabilization and documentation/CICD implementation, I am well-equipped to deliver the results you are looking for. Let's discuss how we can work together to ensure your production readiness by April 2026. I am eager to dive into the technical details of your project and provide a tailored solution that meets your specific needs. Contact me to start our collaboration and bring your vision to life.
$1.200 USD på 20 dage
6,9
6,9

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat so I can share relevant examples of my past work. I look forward to hearing from you. Best Regards, Divu.
$1.125 USD på 7 dage
6,8
6,8

Hi I can support your backend realignment by stabilizing Django REST API contracts, resolving serializer and ID mismatches, and enforcing Swagger as the single source of truth. The key technical challenge is achieving backward-compatible fixes across 53 endpoints while preventing schema or migration regressions, which I address through controlled serializer restructuring, migration dry-runs, and strict contract validation. I’ll normalize PostgreSQL constraints, validate migrations, and ensure no data loss while cleaning up N+1 queries and optimizing critical endpoints safely. Signals, notifications, and Celery/Redis workflows will be audited to prevent recursion, duplicates, and non-atomic behavior. I’ll also refine RBAC, moderation endpoints, structured logging, and admin features without altering your core architecture. Docker hardening, health checks, and CI/CD-ready documentation will make the April 2026 release stable and predictable. My experience in legacy stabilization ensures the platform becomes production-safe without disruptive rewrites. Thanks, Hercules
$1.500 USD på 7 dage
6,8
6,8

Hello, {{{ I HAVE CREATED SIMILAR APPS BEFORE AND I CAN SHOW YOU }}} I am a senior developer with 10+ years of experience in the required technologies and in delivering scalable, production-ready applications aligned with complex business concepts like the one you described. I clearly understand your project scope and will focus on clean architecture, stable APIs, performance, and long-term maintainability. I will provide complete source code ownership, follow an Agile development methodology, and ensure transparent progress at every stage. I will also provide 2 years of free ongoing post-launch support and full assistance from initial planning to deployment and publishing on app stores. My approach emphasizes reliability, backward compatibility, and clear documentation to ensure smooth future scaling and maintenance. I eagerly await your positive response. Thanks
$1.125 USD på 7 dage
6,6
6,6

Hello, I am excited about the opportunity to contribute to your API stabilization and backend realignment project for your community platform. With over five years of solid experience in Django and a proven track record of successfully stabilizing complex backends, I am confident in my ability to meet your April 2026 release timeline while ensuring strict backward compatibility. My depth in Django REST Framework and PostgreSQL allows me to tackle the current mismatches and missing endpoints efficiently. I have previously managed similar migrations and ensured no data loss, while following best practices for API documentation using Swagger/OpenAPI. Furthermore, I have extensive experience with Docker for production environments, ensuring smooth deployments. I believe a technical discussion would clarify the specifics of your needs and how I can best align with your team. Please reach out to me to discuss this further. What specific challenges have you encountered during the existing testing phase that you would like to address immediately? Best regards,
$1.375 USD på 2 dage
6,3
6,3

As the founder and CEO of Web Crest, I bring over a decade of in-depth experience as a backend engineer, including more than 5 years with Django. My team of dedicated professionals is skilled in Django REST Framework, PostgreSQL migration, and Docker production - all vital aspects for the stabilization and hardening project you are looking to complete. In fact, we’ve become quite comfortable working with complex APIs that require strict backward compatibility, making your project an ideal fit for our expertise. One of the hallmarks of our service at Web Crest is our ability to align technical solutions with business objectives, which aligns well with your project’s requirement for stability over feature expansion. We understand that this is not a full rewrite and no architectural revolution is desired - and we respect the existing production infrastructure. We know how to get things done within these constraints while still delivering exceptional results, which has been attested by the positive completion rate of 98% we maintain.
$1.000 USD på 7 dage
6,5
6,5

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!
$1.200 USD på 7 dage
6,2
6,2

As a seasoned Django Backend Engineer, I've not only built complex APIs from scratch but also have had the opportunity to stabilize and improve existing systems. My deep understanding of the Django framework, coupled with a comprehensive experience in Docker production, PostgreSQL migration, Swagger/OpenAPI usage, and Redis/Celery, positions me ideally to tackle the exact pain points your project is facing. Moreover, having worked extensively with production systems in real-time situations gives me an edge in anticipating and addressing potential bottlenecks early on in the process. I'm well-versed with the need for stability above all else in an ongoing project and consider adherence to P0 scopes no less than essential for robustness. To reiterate, apart from simply having "skin in the game," my rich experiences encompassing all key areas along with a personified commitment toward holistic solutioning make me the best candidate for this project. Let's discuss further how I can turn this controlled backend realignment into a success story. Impressed by what you need, I look forward to assisting you reach new heights!
$1.125 USD på 7 dage
6,3
6,3

Interesting project, I will work through your 53 endpoints, fix the 37 serializer and _id mismatches, build the 9 critical missing endpoints, stabilize the notification signals to prevent duplicates, harden the Docker deployment, and bring Swagger/OpenAPI coverage to 100% as the single source of truth. For the migration safety, I will run each PostgreSQL schema change through a dry-run validation step on a cloned database first, verifying zero data loss and no foreign key constraint breaks before applying to staging. Questions: 1) Is the test infrastructure accessible now, and do you have a staging environment that mirrors production data? 2) Are the 37 serializer mismatches documented, or should I audit and catalog them myself? 3) What is the current Celery task queue situation - are there known failing or stuck tasks? Ready to start whenever you are. Kamran
$770 USD på 14 dage
6,3
6,3

⭐⭐⭐⭐⭐ We at CnELIndia, led by Raman Ladhani, are well-positioned to ensure the successful April 2026 production release. Leveraging our extensive Django REST Framework expertise and PostgreSQL migration experience, we will methodically align and stabilize all 53 APIs, resolve the 37 serializer mismatches, and implement the 9 critical P0 endpoints while strictly maintaining backward compatibility. Our team will validate database migrations, enforce constraint normalization, and safeguard against data loss. Existing notifications, triggers, and Celery/Redis workflows will be reviewed and stabilized to prevent duplication or recursion. We will enhance admin console RBAC, logging, and moderation features and optimize critical queries without architectural rewrites. Complete Swagger documentation, Docker production hardening, health checks, and CI/CD validation will ensure regression safety and operational readiness, guaranteeing a controlled, stable, and fully production-ready backend by April 2026.
$1.125 USD på 7 dage
6,1
6,1

Hello, I’m excited about the opportunity to contribute to your backend realignment and production stabilization mission. With over five years of Django and Django REST Framework experience, including legacy API stabilization, PostgreSQL migration safety, Dockerized deployments, and Swagger/OpenAPI contract enforcement, I can ensure strict backward compatibility while hardening your system for the April 2026 release. I will focus on precise API alignment, serializer and schema normalization, signal safety, performance hygiene, and production-grade validation without introducing architectural disruption, keeping stability as the top priority. You can expect structured communication, disciplined execution, and a clean, controlled stabilization process aligned with your infrastructure and CI/CD flow. Best regards, Juan
$750 USD på 4 dage
5,6
5,6

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since I have over 5 years of extensive experience in Django and Django REST Framework, specializing in stabilizing legacy backends like yours. My expertise includes PostgreSQL migration, Docker production deployment, and Swagger/OpenAPI implementation. I am confident in addressing API realignment, database safety, notifications optimization, admin console development, performance enhancements, and documentation. By ensuring backward compatibility and stability, I aim to meet your production deadlines efficiently. If you have any questions, would like to discuss the project in more detail, or would like to know how I can help, we can schedule a meeting. Thank you. Maxim
$750 USD på 3 dage
5,4
5,4

I have led backend stabilization efforts for large Django platforms with messaging, payments, and community features where backward compatibility and production safety were critical. This mission aligns closely with work I have done on legacy DRF systems requiring API contract realignment without architectural rewrites. For API alignment, I would first freeze the current contract, audit all 53 endpoints against frontend usage, and resolve serializer and id mismatches while making Swagger the authoritative source. Missing P0 endpoints would be implemented behind compatibility layers. I would introduce regression checks to prevent future drift. On the database side, I would validate PostgreSQL schema alignment, normalize foreign keys, and test migrations against production snapshots to guarantee zero data loss. Signals and notifications would be refactored for atomicity, eliminating recursion and duplicate triggers. Performance work would focus on N plus one detection, queryset optimization, Redis and Celery validation, and safe indexing without structural disruption. I am fully committed to delivering a stable April 2026 release through disciplined, production focused collaboration. Best Alex
$2.000 USD på 30 dage
5,4
5,4

Hi There, I am ready to join and enable the CI/CD tools for developers. Please let us have a meeting to discuss the details. Regards, Mohammad Alaa
$1.125 USD på 7 dage
5,4
5,4

Greetings, I see that you're looking for a Django expert to help stabilize and realign your API for a large community platform, with a focus on maintaining backward compatibility and ensuring production readiness by April 2026. My approach would involve a thorough review of the existing API endpoints, addressing the identified mismatches and missing endpoints to ensure everything aligns smoothly. I have over 5 years of experience with Django and the Django REST Framework, which has equipped me to handle legacy systems and work on stabilizing backend infrastructures effectively. Additionally, my experience with PostgreSQL and Docker makes me comfortable with database migrations and production hardening. I understand the importance of maintaining performance while ensuring that the existing architecture remains intact, so I would prioritize stabilization over new features. Best regards, Saba Ehsan
$850 USD på 5 dage
5,0
5,0

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