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senior backend python aws developer

Luxoft

<div><div><h5 class="jobSectionHeader">Project description
</h5>Luxoft is one of the major software services companies world-wide. In particular, we develop high quality software in automotive industry for most famous car makers.
 
 
The software inside a vehicle was traditionally expected to be a very controlled and self-contained environment. Equipping cars with perception and machine intelligence changes a lot in the overall picture of the vehicle manufacturer. Luxoft's goal is to empower our customers, with deep domain knowledge and smart solutions, to develop cars of the future.
 
 
The project is dedicated to the development of the tools for virtual testing of ADAS systems using data-driven development approach. Tools will allow testing and validation of higher automation level cars. The target SAE automation level is 3, which means that the car will be fully responsible for driving under specific conditions (highways, specific areas, traffic jams, etc). To bring fully autonomous car to the roads and to bring the future to reality, their safety has to be proven, for this purpose the testing on private grounds or on public roads is not enough as it requires hundreds of millions of kilometers to ride, so the alternative way of testing - virtual testing and data based testing - is becoming more and more actual.
 
 
For the development of the next generation tooling for ADAS (Advanced Driver Assistance Systems) and HAD (Highly Automated Driving) functions for a major German car maker, we are looking for a talented software engineer.
 
 
Join our enthusiastic and experienced team and develop software for the vehicles of future that will be used on a daily basis by millions of drivers once the next generation of cars hits the roads starting from 2025.
</div><div><h5 class="jobSectionHeader">Responsibilities</h5>
<div><div>Collaborate with our customer to develop and maintain the web based tool to access and manipulate data collected from testing and customer fleet.
</div><div>Manage and implement various aspects of the data lifecycle, including data feed, data quality checks, data preparation, data enrichment framework, and data storage.
</div><div>Stay abreast of industry trends and technologies, ensuring that our solutions remain innovative and aligned with best practices.
</div><div>Collaborate with cross-functional teams and stakeholders to ensure the successful integration of cloud services, with a current focus on AWS.
</div></div></div><div><h5 class="jobSectionHeader">Skills</h5>
Must have
<div><div>Languages:
</div><div>Python: strong knowledge of the language and both functional and OOP patterns
</div><div>Bash: for provisioning AWS resources, subnet groups etc..
</div><div>Solid skillset when developing with AWS, especially serverless
</div><div>AWS Boto3: good knowledge of the AWS SDK is required
</div><div>AWS Lambda: essential for creating new functions and updating existing ones
</div><div>API Gateway: proficient in designing and managing RESTful and HTTP
</div><div>APIs, including configuring routes, stages, throttling, and authorization mechanisms
</div><div>IAM Roles: add and edit existing IAM roles following best practices
</div><div>Databases:
</div><div>PostgreSQL: good knowledge of relational databases in the context of AWS Aurora
</div><div>Flyaway: manage and automate database versioning and schema changes and migration scripts
</div><div>Caching:
</div><div>Redis: experience using Redis for caching, session management, and pub/sub patterns to improve backend performance and scalability
</div><div>CI/CD:
</div><div>Seedfarmer: Orchestrate and manage infrastructure and application deployments
</div><div>Github actions: Run tests, Build, Package and deploy in combination with Seedfarmer
</div><div>Experience in leading technical discussion, presentation and propose solutions.
</div></div>Nice to have
<div><div>Nice to have:
</div><div>AWS CDK
</div><div>AWS SAM
</div></div></div><div><h5 class="jobSectionHeader">Other</h5>
<div><div><div>Languages
English: C1 Advanced
</div></div><div><div>Seniority
Senior</div></div></div></div></div>
 <div><div><div>Istanbul, Turkiye
</div>Req. VR-118542
</div><div></div><div><div>Python
</div><div>Automotive Industry
</div><div>17/11/2025
</div><div>Req. VR-118542</div></div></div>

Senior Backend Python+AWS Developer

Ahtapot Yazılım

&#304;&#351; Tan&#305;m&#305;: Octopus Software olarak, yaz&#305;l&#305;m projelerimizi geli&#351;tirmek i&ccedil;in ekibimize Python Django Developer Stajyeri ar&#305;yoruz. Ekibimizde yer alacak ki&#351;i, &ccedil;e&#351;itli projelerde aktif rol alacak, Django ile web uygulamalar&#305; geli&#351;tirecek ve mevcut sistemlerin optimizasyonu ve bak&#305;m&#305;yla ilgilenecektir.Sorumluluklar:<ul><li>Django ile web uygulamalar&#305; geli&#351;tirmek</li><li>Mevcut projelerde bak&#305;m ve optimizasyon &ccedil;al&#305;&#351;malar&#305; yapmak</li><li>Backend geli&#351;tirme s&uuml;re&ccedil;lerinde yer almak</li><li>REST API'ler olu&#351;turmak ve entegre etmek</li><li>&Ccedil;e&#351;itli veri tabanlar&#305;yla &ccedil;al&#305;&#351;mak (Firebase)</li><li>&#304;lgili teknolojilerle s&uuml;rekli olarak g&uuml;ncel kalmak ve yeniliklere adapte olmak</li></ul>Aranan Nitelikler:<ul><li>Python ve Django konular&#305;nda deneyim</li><li>REST API'lerle &ccedil;al&#305;&#351;ma tecr&uuml;besi</li><li>Google Firebase veri taban&#305; ile &ccedil;al&#305;&#351;ma deneyimi</li><li>Tak&#305;m &ccedil;al&#305;&#351;mas&#305;na yatk&#305;nl&#305;k ve ileti&#351;im becerisi y&uuml;ksek</li><li>Problem &ccedil;&ouml;zme ve analitik d&uuml;&#351;&uuml;nme yetene&#287;i</li><li>Uzaktan &ccedil;al&#305;&#351;ma disiplinine sahip olmak</li></ul>Tercih Edilen Nitelikler:<ul><li>Frontend teknolojileri (HTML, CSS, JavaScript) hakk&#305;nda bilgi</li><li>Bulut servisleri (AWS, Google Cloud) hakk&#305;nda bilgi</li><li>Django k&uuml;t&uuml;phanesine hakim</li><li>&#304;stanbul'da ikamet eden</li></ul>Sunduklar&#305;m&#305;z:<ul><li>Esnek &ccedil;al&#305;&#351;ma saatleri (Haftada 21 saat)</li><li>Hibrit &ccedil;al&#305;&#351;ma imkan&#305;</li><li>Dinamik ve yenilik&ccedil;i bir &ccedil;al&#305;&#351;ma ortam&#305;</li><li>Kendi projelerinizi geli&#351;tirip katk&#305; sa&#287;layabilece&#287;iniz bir alan</li><li>Ki&#351;isel geli&#351;iminizi destekleyecek kaynaklar ve e&#287;itimler</li></ul>&#304;&#351; T&uuml;r&uuml;: Tam zamanl&#305;, Yar&#305; zamanl&#305;, Ge&ccedil;ici, Kontratl&#305;, Yeni mezun S&ouml;zle&#351;me s&uuml;resi: 4 ayMaa&#351;: ayl&#305;k 8.500,00TRY veya &uuml;zeri

Python Django Developer Stajyeri

Chefsdeal

Chef's Deal Restaurant Equipment Company in Downtown Nashville is seeking a Senior Backend PHP Developer for E&#8209;Commerce. If you're hard-working and dedicated, Chef's Deal is an excellent company for you. Apply today!You do not need to live in US for this job. We are seeking a specialist that lives in Turkey and can work at US Central time; Monday to Friday 8am. to 5pm.Interviews will be available immediately for qualified candidates.About the Role:We&rsquo;re building and scaling the backend of the Chef&rsquo;s Deal e&#8209;commerce platform, a high&#8209;traffic online store that combines Magento with a custom PHP framework. Our backend powers product catalogs, APIs, search, and integrations with payment providers and external services. We&rsquo;re looking for a Senior/Mid-Level Backend PHP Developer who can take ownership of complex features, improve performance, and help us evolve the platform for the future.Job Duties / Responsibilities:<ul><li>Maintain and extend backend features that power storefront APIs, product data, categories, and search.</li><li>Work with Magento data structures and synchronization flows (no deep Magento customization required).</li><li>Design and tune Elasticsearch indices and queries for fast, relevant product search and listings.</li><li>Integrate and maintain payment gateways (Stripe, PayPal).</li><li>Work with AWS services (S3, SDK integrations) for media and asset storage.</li><li>Improve performance and reliability of background jobs and indexing pipelines.</li><li>Troubleshoot production issues using logs and monitoring tools (Sentry) and propose resilience improvements.</li><li>Performs other duties as assigned</li></ul>Qualifications:<ul><li>Strong PHP 8.x experience with Composer&#8209;based dependency management.</li><li>Familiarity with mainstream frameworks (Laravel, Symfony) and ability to work with custom frameworks.</li><li>Deep SQL/MySQL knowledge (schema design, queries, migrations, performance tuning).</li><li>Experience with Elasticsearch (indexing, analyzers, queries, tuning).</li><li>Experience with Redis for caching and sessions.</li><li>Familiarity with AWS SDK/S3 and file storage integrations.</li><li>Experience with payment gateway integrations.</li><li>Comfortable with Docker for local development.</li><li>Solid understanding of testing (PHPUnit), Git workflows, and CI/CD pipelines</li></ul>Additional Skills (Good to have):<ul><li>Exposure to Magento product/catalog schemas.</li><li>Experience with Kubernetes deployments.</li><li>Background in large&#8209;scale data processing or long&#8209;running console tasks.</li><li>Prior experience with e&#8209;commerce platforms and checkout/payment flows.</li></ul>Soft Skills :<ul><li>Clear communicator who can explain technical trade&#8209;offs.</li><li>Strong problem&#8209;solver with debugging and production triage skills.</li><li>Team player who shares knowledge and supports others.</li><li>Self&#8209;driven, organized, and able to own features end&#8209;to&#8209;end.</li><li>Pragmatic and outcomes&#8209;oriented, balancing delivery with technical quality</li><li>Fluent in English</li></ul>Why Join Us :<ul><li>Work on a high&#8209;impact e&#8209;commerce platform with real&#8209;world scale.</li><li>Collaborate with a skilled, supportive engineering team.</li><li>Competitive salary and benefits.</li><li>Flexible working arrangements.</li><li>Opportunities for growth in modern backend, cloud, and search technologies.</li></ul>Position: Full time, RemoteExperience Level: Senior / Mid-LevelSalary: Between 1500 and 2000 USD (depending on the experience)Job Types: Full-time, Contract, PermanentPay: 63,500.00TRY - 85,000.00TRY per month

Senior/Mid-level Backend PHP Developer E‑Commerce

Pubinno

<div>
 
 
 We are seeking a highly skilled
 
 
 Senior Full Stack Engineer
 
 
 to join our engineering team at Pubinno. The ideal candidate is an experienced developer who thrives in a fast-paced, innovative environment and is passionate about building scalable, data-driven systems. You will play a key role in maintaining, optimizing, and evolving our cloud-native architecture that powers intelligent IoT systems used across global markets.
 
 
 
 
 
 
 
 What You&rsquo;ll Be Doing:
 
 
 <ul>
 <li>
 
 Design, build, and maintain robust backend and frontend services across multiple projects.
 
 </li>
 <li>
 
 Develop, release, and sustain high-quality, clean, and maintainable code that meets modern engineering standards.
 
 </li>
 <li>
 
 Translate technical requirements, storyboards, and use cases into functional, scalable applications.
 
 </li>
 <li>
 
 Ensure optimal performance, reliability, and responsiveness of all systems under your ownership.
 
 </li>
 <li>
 
 Identify and resolve performance bottlenecks, bugs, and architectural issues proactively.
 
 </li>
 <li>
 
 Keep all systems and dependencies secure, up to date, and production-ready.
 
 </li>
 <li>
 
 Foster strong cross-functional collaboration, knowledge sharing, and teamwork across engineering disciplines.
 
 </li>
 </ul>
 
 
 
 
 
 Our Tech Stack:
 
 
 <ul>
 <li>
 
 Frontend (web):
 
 
 React + Typescript
 
 </li>
 <li>
 
 Backend:
 
 
 .NET Core, Python
 
 </li>
 <li>
 
 Databases:
 
 
 SQL, NoSQL (Cosmos DB), OLAP (Clickhouse)
 
 </li>
 <li>
 
 Cloud Infrastructure:
 
 
 MS Azure
 
 </li>
 </ul>
 
 
 
 
 
 Desired Skills and Experiences:&nbsp;
 
 
 <ul>
 <li>
 
 7+ years of professional software engineering experience,
 
 
 including full-stack development.
 
 </li>
 <li>
 
 Advanced proficiency in
 
 
 .NET Core (C#)
 
 
 for backend services, with strong knowledge of modern API design and performance optimization.
 
 </li>
 <li>
 
 Deep expertise in
 
 
 Azure Functions
 
 
 and
 
 
 serverless architectures
 
 
 , including monitoring, scaling, and troubleshooting distributed systems.
 
 </li>
 <li>
 
 Solid experience with
 
 
 React
 
 
 and
 
 
 TypeScript
 
 
 , delivering performant, maintainable, and responsive front-end applications.
 
 </li>
 <li>
 
 Proven ability to manage and deploy systems within the
 
 
 Azure Cloud
 
 
 ecosystem, leveraging services such as App Services, Storage, and Application Insights.
 
 </li>
 <li>
 
 Strong understanding of
 
 
 CI/CD pipelines, automated testing,
 
 
 and
 
 
 GitHub
 
 
 -based workflows for continuous integration and deployment.
 
 </li>
 <li>
 
 Working knowledge of
 
 
 Python
 
 
 for microservices, utilities, or cloud functions.
 
 </li>
 <li>
 
 Hands-on experience with
 
 
 Cosmos DB
 
 
 and
 
 
 ClickHouse
 
 
 , including data modeling and analytical query optimization.
 
 </li>
 <li>
 
 Familiarity with
 
 
 Firebase
 
 
 and
 
 
 Cloudflare
 
 
 .
 
 </li>
 <li>
 
 Competence in
 
 
 networking fundamentals
 
 
 , including DNS, load balancing, and edge security.
 
 </li>
 <li>
 
 Prior experience in the
 
 
 IoT industry
 
 
 or connected device ecosystems is highly preferred.
 
 </li>
 <li>
 
 Demonstrated ability to maintain and enhance complex existing systems while ensuring long-term reliability and scalability.
 
 </li>
 <li>
 
 Active use of AI-powered development tools
 
 
 (e.g., Cursor, ChatGPT) for productivity, code quality, and innovation. This is a strict requirement.
 
 </li>
 </ul>
 
 
 
</div>

Full Stack Engineer

Property Turkey

<div>
 
 Full-Stack Developer
 
 
 
 Location: &Scedil;i&scedil;li,
 
 
 Istanbul &mdash; On-site
 
 
 
 
 Team:
 
 
 Product Development
 
 
 
 
 Type:
 
 
 Full-time
 
 
 
 About Property Turkey
 
 
 
 Property Turkey connects international buyers with the best homes, investments, and lifestyle properties across T&uuml;rkiye. We&rsquo;re modernising how real estate is searched, evaluated, and purchased&mdash;end-to-end, from discovery to post-sale support.
 
 
 
 The role
 
 
 
 We&rsquo;re hiring a Full-Stack Developer who&rsquo;s comfortable owning features across backend and frontend. You&rsquo;ll improve the property search experience and build tools that power our sales, content, and ops teams.
 
 
 
 You&rsquo;ll work on things like:
 
 <ul>
 <li>
 
 High-performance property search &amp; discovery (map/search filters, saved searches, alerts)
 
 </li>
 <li>
 
 Lead capture &amp; routing flows, CRM integrations, marketing automation
 
 </li>
 <li>
 
 Multilingual content, SEO &amp; Core Web Vitals improvements
 
 </li>
 <li>
 
 Internal tools (inventory/pipeline dashboards, contract/workflow helpers)
 
 </li>
 <li>
 
 Data and content integrations with third-party listing/analytics services
 
 </li>
 <li>
 
 Gradual modularisation of our CakePHP codebase and better CI/CD
 
 </li>
 </ul>
 
 What you&rsquo;ll do
 
 <ul>
 <li>
 
 Design and ship features end-to-end (DB &rarr; API &rarr; UI) with clear, maintainable code
 
 </li>
 <li>
 
 Build and maintain CakePHP controllers, services, jobs, and APIs (REST/JSON)
 
 </li>
 <li>
 
 Implement responsive, accessible UIs with modern JS (React or Vue preferred)
 
 </li>
 <li>
 
 Optimise MySQL queries, add indexes, profile bottlenecks, and tune caching (Redis)
 
 </li>
 <li>
 
 Raise reliability with tests (PHPUnit/Pest) and pragmatic instrumentation (Sentry, logs)
 
 </li>
 <li>
 
 Collaborate with Product/Design/SEO to deliver measurable outcomes
 
 </li>
 <li>
 
 Review PRs, improve standards, and contribute to our engineering playbook
 
 </li>
 </ul>
 
 What you&rsquo;ll bring
 
 <ul>
 <li>
 
 7+ years of professional software development experience
 
 </li>
 <li>
 
 4+ years working with CakePHP (v3/4+) and PHP 8+
 
 </li>
 <li>
 
 Hands-on experience with AWS (EC2, RDS, S3, CloudFront, IAM; VPC basics)
 
 </li>
 <li>
 
 Solid SQL/MySQL schema design and query optimisation
 
 </li>
 <li>
 
 Strong frontend skills: modern JS/TS, component architecture, state mgmt, REST usage
 
 </li>
 <li>
 
 Excellent grasp of HTTP, security basics (OWASP), and API design
 
 </li>
 <li>
 
 Git workflows and CI/CD comfort (GitHub/GitLab, code review, pipelines)
 
 </li>
 <li>
 
 Clear communication in English (Turkish a plus)
 
 </li>
 </ul>
 
 Nice to have
 
 <ul>
 <li>
 
 React or Vue in production (Next/Nuxt is a bonus)
 
 </li>
 <li>
 
 Search tech (Elasticsearch/OpenSearch/Meilisearch)
 
 </li>
 <li>
 
 Map/geo experiences (Leaflet/Mapbox/Google Maps)
 
 </li>
 <li>
 
 Caching &amp; queues (Redis), background jobs, cron workers
 
 </li>
 <li>
 
 Containerisation &amp; IaC (Docker; Terraform or CDK); advanced AWS (ECS/EKS) or DigitalOcean
 
 </li>
 <li>
 
 SEO for large sites (structured data/JSON-LD, sitemaps, CWV, SSR/SSG)
 
 </li>
 <li>
 
 Real-estate or marketplace experience, or CRM integrations
 
 </li>
 <li>
 
 Understanding of data privacy/GDPR/KVKK and consent flows
 
 </li>
 </ul>
 
 Our stack
 
 
 
 Backend: CakePHP 4, PHP 8.x, MySQL 8, Redis, REST
 
 
 
 
 Frontend: React or Vue (TypeScript), Tailwind/Bootstrap
 
 
 
 
 Ops: Docker, Nginx, GitHub Actions/GitLab CI, Sentry, AWS
 
 
 
 Why join us
 
 <ul>
 <li>
 
 Ownership: ship meaningful features used by thousands of property seekers
 
 </li>
 <li>
 
 Impact: move key funnels (traffic &rarr; leads &rarr; sales) with real metrics
 
 </li>
 <li>
 
 Growth: modernise a mature product while shaping engineering standards
 
 </li>
 <li>
 
 Practical culture: we value clear specs, fast feedback, and sensible testing
 
 </li>
 </ul>
 
 
 
</div>

Full-Stack Developer

Sezzle

<div>About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We're not just transforming payments; we're redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we're building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you're excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this principal development role, with 12+ years of experience, the compensation range is $6000 - $12500 per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

About the Role:

We are seeking a talented and motivated best-in-class Principal Software Engineer. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. 
 
As a Principal Software Engineer with Sezzle, you will work with highly-motivated teams to tackle interesting and challenging problems across multiple areas of the organization. Your experience and guidance will help other members of the team level-up their own skills as well. You will spend your time working with AI/ML tooling to identify creative uses to fill existing and emerging gaps in the applications.

In this backend focused role, you will work closely with stakeholders from Product, Support and the business. You'll also partner with other engineering teams to provide high-quality, scalable, and innovative solutions to internal and customer problems. Your day-to-day responsibilities will include designing, developing, and delivering new features, as well as unblocking and mentoring your teammates. Your work will generally focus on the lower level features and optimizations.

This role has both an internal and external focus, your contributions will make a meaningful difference in the day-to-day lives of your peers at Sezzle, enhancing their ability to support our business and customers, and you will have opportunities to take any feedback and iterate.

What You'll Do:
<ul>
<li>Architect, design, and build scalable backend services and APIs primarily in Golang, leveraging AWS, RDS (MySQL/Postgres), and modern distributed patterns.</li>
<li>Lead Sezzle's AI enablement efforts, identifying opportunities to apply AI and automation to enhance developer productivity, internal tooling, and customer experiences.</li>
<li>Partner with teams across the organization to integrate modern AI capabilities - Primarily around tools like Claude Code, Codex, Cursor and enhancing team productivity.</li>
<li>Drive consistency and scalability across a distributed microservices architecture while maintaining performance and reliability.</li>
<li>Establish and evolve engineering best practices for observability, security, and CI/CD across teams.</li>
<li>Mentor engineers and champion a culture of learning, innovation, and operational excellence.</li>
<li>Collaborate cross-functionally to translate business goals into technical roadmaps and deliver results that matter.</li>
</ul>
What We Look For:
<ul>
<li>12+ years of professional software engineering experience, including significant backend experience.</li>
<li>Deployed significant changes to a production application in the past 30 days.</li>
<li>Strong proficiency in Golang, with experience building and maintaining RESTful APIs.</li>
<li>Expertise with SQL-based RDBMS (MySQL, PostgreSQL) and experience optimizing schema and queries for performance at scale.</li>
<li>Solid understanding of distributed systems design patterns (e.g., transactional outbox, event-driven architecture, queues).</li>
<li>Demonstrated ability to bring new ideas forward, influence decisions, and lead complex technical initiatives.</li>
<li>Bachelor's degree in Computer Science or equivalent practical experience.</li>
</ul>
Preferred Knowledge and Skills:
<ul>
<li>Proficiency in observability tools (Prometheus, Grafana, Datadog, New Relic).</li>
<li>Experience with AWS cloud infrastructure, mainly AWS Aurora RDS, both MySQL and Postgres.</li>
<li>Experience in fintech, payments, BNPL, or consumer lending - familiarity with financial compliance, credit decisioning, or transaction processing systems.</li>
<li>Experience with CI/CD pipelines and containerized microservices (Docker, Kubernetes).</li>
<li>Working knowledge of TypeScript, React, or React Native.</li>
<li>Familiarity with AI/ML tooling (e.g., OpenAI API, LangChain, Hugging Face, or custom LLM integrations).</li>
<li>Track record of shipping commercial APIs and data-driven applications in high-growth environments.</li>
<li>Proven leadership in guiding technical direction, improving system reliability, and scaling engineering organizations.</li>
</ul>
About You:
<ul>
<li>You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.</li>
<li>You're not bound by convention - your success&mdash;and much of the fun&mdash;lies in developing new ways to do things</li>
<li>You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.</li>
<li>You earn trust - you listen attentively, speak candidly, and treat others respectfully.</li>
<li>You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.</li>
<li>You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.</li>
</ul>
Sezzle's Technology Stack:
<ul>
<li>Languages: Golang, Typescript, Python</li>
<li>Frontend: Typescript - React and React Native</li>
<li>Backend: Golang</li>
<li>Database: MySQL, Postgres, Elasticsearch</li>
<li>DevOps &amp; Cloud: AWS, Kubernetes</li>
<li>Version Control: Git</li>
<li>CI/CD: Gitlab</li>
<li>Testing: Developer and AI-driven, focus on automated end-to-end, integration, and unit tests</li>
<li>Open Source: Sezzle is focused on using open source, and we build what we can before buying!</li>
</ul>
What Makes Working at Sezzle Awesome?

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire.</div>

Principal Software Engineer

Sampa Automotive

<div>
 
 SAMPA Automotive, a leading global manufacturer of commercial vehicle aftermarkets, was established in 1994. Developing and testing 150,000 advanced quality parts for OEM and independent aftermarket, SAMPA exports to 160+ countries.
 
 
 
 
 
 SAMPA focuses on prioritizing quality, enhancing customer satisfaction, and applying technical innovations by working with the brightest experts in their respective fields.
 
 
 
 
 
 
 Who We&rsquo;re Looking For
 
 
 
 
 
 
 We are seeking an experienced
 
 Senior Backend Developer
 
 who can take ownership of complex backend and microservice architectures, contribute to system design decisions, and deliver high-performance, scalable solutions within a modern distributed environment. You should be able to join our team and immediately start contributing to ongoing projects with minimal onboarding.
 
 
 
 
 
 
 What You&rsquo;ll Do
 
 
 
 
 
 <ul>
 <li>
 Design, develop, and maintain scalable microservice-based applications using .NET technologies.
 </li>
 <li>
 Work with multiple databases &mdash; primarily PostgreSQL, MongoDB, and MSSQL &mdash; ensuring performance, consistency, and data integrity.
 </li>
 <li>
 Develop and maintain high-performance RESTful APIs and background services.
 </li>
 <li>
 Contribute to system architecture and design decisions, ensuring reliability, maintainability, and scalability.
 </li>
 <li>
 Participate in code reviews, promote clean code practices, and enforce test automation and CI/CD quality gates.
 </li>
 <li>
 Collaborate closely with frontend, DevOps, and product teams to deliver seamless end-to-end features.
 </li>
 <li>
 Mentor mid-level developers and contribute to continuous improvement across the team.
 </li>
 </ul>
 
 
 
 
 
 What We Expect From You
 
 
 
 
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in Computer Engineering, Computer Science, Electrical &amp; Electronics Engineering, or equivalent experience.
 </li>
 <li>
 6+ years of professional software development experience, with a strong focus on backend systems.
 </li>
 <li>
 Deep expertise in C#, .NET 6+ / .NET 9, and ASP.NET Core.
 </li>
 <li>
 Proven experience in microservice architectures, distributed systems, and event-driven communication (RabbitMQ, Kafka, or similar).
 </li>
 <li>
 Strong understanding of RESTful API design, DDD, and clean architecture principles.
 </li>
 <li>
 Proficiency in SQL and NoSQL databases (PostgreSQL, MSSQL, MongoDB).
 </li>
 <li>
 Hands-on experience with caching mechanisms (Redis, MemoryCache).
 </li>
 <li>
 Solid grasp of asynchronous programming, dependency injection, and performance optimization.
 </li>
 <li>
 Commitment to code quality, including unit testing, integration testing, and static code analysis.
 </li>
 <li>
 Experience with containerized environments (Docker, Kubernetes).
 </li>
 <li>
 Familiarity with CI/CD pipelines and source control systems (Git).
 </li>
 <li>
 Knowledge of Saga, Orchestration, and Choreography (Chor) patterns in distributed transactions.
 </li>
 <li>
 Understanding of 2PC (Two-Phase Commit) mechanisms and their use in ensuring consistency across distributed systems.
 </li>
 <li>
 Deep knowledge of Redis replication and master-slave (primary-replica) architectures, including high availability setups (Sentinel, Cluster).
 </li>
 <li>
 Experience working with MongoDB sharding and partitioning strategies for large-scale distributed data.
 </li>
 </ul>
 
 
 
 
 
 Nice to Have
 
 
 
 
 
 <ul>
 <li>
 Experience in message-driven and event sourcing systems (Outbox, Debezium, etc.).
 </li>
 <li>
 Exposure to cloud platforms (Azure, AWS, or GCP).
 </li>
 <li>
 Knowledge of Agile methodologies (Scrum/Kanban).
 </li>
 <li>
 Background in ERP, B2B, or CRM systems.
 </li>
 <li>
 Strong communication skills and ability to collaborate in large, multi-team environments.
 </li>
 </ul>
 
 
 
 
 
 Why You&rsquo;ll Love Working With Us
 
 
 
 
 
 <ul>
 <li>
 Enterprise-grade projects built entirely on microservice and distributed architecture.
 </li>
 <li>
 A collaborative environment where technical excellence and autonomy are valued.
 </li>
 <li>
 Continuous learning, code ownership, and the chance to shape the core backend architecture of major products.
 </li>
 </ul>
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Back End Developer

Explore 349+ Senior backend python aws developer in Istanbul Turkey this November. Find roles across top companies and apply now to boost your career.