The type of contract is a full-time legal agreement in Bulgaria, Serbia, and Turkey, not a B2B contract.

Duties and Responsibilities:

• Design and implement backend services in Rust within a microservices architecture.
• Maintain and evolve existing Python services (FastAPI) where it's the right tool for the job.
• Write maintainable, testable, and performant code; participate in code reviews and raise the engineering bar across the team.
• Work with QA and DevOps to improve reliability, observability, and performance of our services.
• Contribute to architectural decisions: choosing the right language for each problem, inter-service communication patterns, and data modeling.

Qualifications and Experience:

• 5+ years of professional backend development experience.
• Solid production experience with Rust (minimum of 3 years).
• Strong Python: FastAPI or similar modern frameworks, asynchronous programming (asyncio), and type-driven development (mypy, pydantic).
• Deep understanding of microservices and communication patterns: sync/async, event-driven, message brokers (Kafka / RabbitMQ / NATS), gRPC/REST.
• Working-level PostgreSQL: indexes, transactions, isolation levels, locking, query plans.
• SOLID, dependency injection, and clean architecture — applied in practice, not just in theory.
• Working knowledge of k8s, containers, networking, and CI/CD.
• English B2 or higher.

Nice to Have but not Obligatory: 

• Experience migrating Python services to Rust under real load (with measurements and clear motivation).
• Exposure to vector databases (e.g., Qdrant).
• Experience integrating with LLM APIs (OpenAI, Anthropic).
• Familiarity with LangChain / LangGraph and RAG

Medsien is the leading provider of scalable remote care management for a quality patient experience. Hundreds of organizations trust Medsien’s unparalleled technology solutions to implement exceptional remote care management programs, personalize every interaction, and improve the lives of the people who need it most. Based in San Francisco and venture-backed by top-tier investors, Medsien was founded to reimagine remote care management. 

More than 60% of all U.S. adults—over 150 million people—live with at least one chronic condition, which requires dedicated, ongoing medical support outside the four walls of their doctor’s office. And yet, only 20% of these patients have access to remote care from the comfort of their homes, putting their health at significant risk. Together, we can save lives and create a real impact. 

Medsien is a venture-backed healthcare SaaS company experiencing rapid growth and looking to expand our team. We’re looking for a passionate Mobile QA Engineer / Software Test Engineer to join our team and play a key role in delivering a high-quality mobile application. You’ll own the testing efforts for our new mobile product while occasionally supporting our web application initiatives.

As a Mobile QA Engineer / Software Test Engineer, you will:

• Design, develop, and execute comprehensive test plans and test cases for iOS and Android applications.
• Build and maintain automated test suites using Appium.
• Collaborate closely with developers, product managers, and designers to ensure quality throughout the development lifecycle.
• Identify, document, and track defects to resolution.
• Perform functional, regression, performance, and usability testing.
• Contribute to web application testing efforts when needed.
• Continuously improve testing processes and advocate for quality best practices.

Please apply if you have:

• 2+ years of experience in mobile application testing (iOS and Android). We are looking for a junior-mid level Mobile QA Engineer.
• Having worked in a dynamic, agile environment with minimal supervision,
• Experience with mobile test automation frameworks (Appium or similar).
• Solid understanding of mobile testing frameworks, tools, and methodologies.
• Experience with bug tracking and test management tools (Jira).
• Familiarity with CI/CD pipelines and integrating automated tests.
• Familiarity with Gen-AI and AI-assisted testing tools.
• A creative and driven mindset with experience navigating through ambiguity and a desire to work in a fast-paced, results-driven environment,
• Perfect English skills; both written and oral,
• Excellent communication and collaboration abilities.
• Bachelor's Degree or higher in Computer Science, or a related field of study,
• Proven experience in Agile/Scrum methodologies.
• ISTQB or similar certification.
• Due to in-person collaborations, residency in Istanbul city center.

For this position, we offer:

• competitive USD salary and stock options,
• Flexible vacation and PTO policies,
• Fully remote work opportunities, 
• Training, mentorship, and coaching from leadership. 

Please bear in mind that:

• This is a permanent-term contractor job opportunity with Medsien Inc.
• Due to in-person collaboration requirements, candidates based in Istanbul are preferred.
• All interviews will be conducted in English and the candidates having less than advanced level of English will be directly eliminated from the process regardless of their technical skills and expertise.

Our Process 

We will review your application along with all the others we receive and pick the top profiles for a screening call. In many cases due to time constraints and our candidate volume, only the short-listed candidates are contacted but we do consider each application carefully. If you have been selected as a short-listed candidate, we will contact you for a short screening call to get to know you better. If you don’t get a call, please don’t be disappointed! We receive many applications for each role and must prioritize who we speak to. 

Employment at Medsien is based solely on a person’s merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national or ethnic origin, religion, marital status, pregnancy, sexual orientation, gender identity or expression, disability, age, citizenship, veteran or military status, and other legally protected characteristics. 

Thank you for taking the time to apply for a position at Medsien! 

Please visit the below links for GDPR details: 

https://www.medsien.com/legal/employee-candidate-information-notice

https://www.medsien.com/legal/employee-candidate-explicit-consent-statement

Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.                  

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 
Refer them! 

Speechify is committed to a diverse and inclusive workplace. 
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

About Appier

Appier is a software-as-a-service (SaaS) company that uses artificial intelligence (AI) to power business decision-making. Founded in 2012 with a vision of democratizing AI, Appier’s mission is turning AI into ROI by making software intelligent. Appier now has 17 offices across APAC, Europe and U.S., and is listed on the Tokyo Stock Exchange (Ticker number: 4180). Visit www.appier.com for more information.

About the role

Appier is seeking Software Engineers, QA Automation to ensure continuous delivery of high-quality system. You will work with engineers to design testing plans for various types of systems - large traffic distributed system, machine learning algorithm, big data platform, frontend system, etc. He/ She will master the skills in defining suitable test strategies and test automation for different types of systems.

[The seniority/title is determined by job-related skills, experience, and evaluation after the interview.] 

About you

- 3+ years of experience in QA Engineering with a focus on automation and test strategy.
- Proficiency in scripting languages (e.g., JavaScript, Java, or similar) for writing automated tests.
- Hands-on experience with test automation frameworks (Playwright is a strong plus).
- Strong experience with API testing tools (Postman, RestAssured, or equivalents).
- Exposure to backend service testing (a plus).
- Experience in cross-browser and cross-platform compatibility testing.
- Mobile testing experience on both iOS and Android.
- Familiarity with performance testing concepts and tools (nice to have).
- Deep understanding of SDLC, Agile methodologies, and QA’s role in shaping product quality early in the cycle.
- Strong knowledge of test pyramid principles and best practices for balancing manual vs automated test coverage.
- Practical experience with Jira and TestRail (or similar test management tools).
- Excellent communication and collaboration skills, with the confidence to question and propose improvements.
- Analytical mindset with strong problem-solving abilities.
- Self-discipline and adaptability to succeed in a remote-first environment.
- Ability to decide regression test coverage independently.
- Strong ownership of manual test efforts, complemented with automation where it adds most value.
- A questioning mindset that ensures no assumption goes untested.
- Availability in a timezone similar to European time.


#LI-Fully Remote

We are seeking a dedicated and experienced Senior Executive, Programmatic Buying to join our team.

• Oversight of the implementation, management, and daily optimization of campaign activity. To ensure that you excel in reaching your client objectives and KPIs
• Competently create media plans designed to achieve specified KPIs
• Support on the day-to-day QA process, minimizing errors and ensuring consistent and correct adherence to process
• Take ownership of some elements of the testing plans of your clients and suggest innovative ideas for testing, including planning, executing & evaluating tests with methodical accuracy

• Create/design programmatic strategy for client portfolio, ensuring strategy is clear and most appropriate to the client's objectives and KPIs
• Complete client reporting and analyze campaign results extracting insight to supply recommendations for future activity
• Drive revenue growth through spotting new optimization opportunities, services or products and delivering excellent results
• Working with partners and attending regular platform training to further develop programmatic skillset

• The right use of tools to drive accountability in programmatic buying, operational efficiencies, and actionable business insights, with the scoping of agreed client outputs
• Ensure financial accuracy, integrating the planning and buying process, and reconciliation of spends, including client terms and programmatic fees, via buying templates and processes
• Maintain standards and process throughout the end-to-end campaign lifecycle

• Passionate about programmatic activation and driving continued excellence
• Proactive approach to expanding knowledge and capabilities
• Confidence in core trading platforms, DV360, Adform and Amazon
• Analytically minded with an aptitude for handling large data sets to identify trends and actionable insights
• Excellent communication skills, both verbal and written, will be particularly important in building & developing client and supplier relationships

• Assisting on the development of detailed paid social media plans that align with client’s objectives and KPIs.
• End-to-end set up of paid social campaigns across relevant social platforms. The ideal candidate should be able to display a good base understanding of Paid Social strategy & best practices across a variety of channels, objectives, formats, audience types etc.
• Undertaking regular quality assurance (QA) checks to ensure campaigns are set up to defined best practice standards. Working with the local team and Global Hub team as necessary to ensure standards remain high.
• Monitoring campaign performance and pacing to ensure activity delivers as expected. Troubleshooting and optimising campaigns in order to improve performance as necessary.
• Working to produce detailed & accurate weekly/monthly campaign performance reports, often in Microsoft Excel.
• Writing performance commentary that delivers valuable insight and recommendations to clients. Able to identify trends and recommend actions on-platform to capitalise/mitigate these trends as necessary.
• Assisting with more detailed analysis including end-of-campaign reporting, quarterly/annual reviews, and on standalone projects.

• Able to effectively manage your time whilst working on multiple projects simultaneously. Able to communicate clearly and in a timely manner with internal and external stakeholders as required across email, chat, video and in-person.
• Attend regular internal meetings and training sessions in order to actively contribute to a collaborative and friendly paid social community.
• Help those more junior in the team with their tasks, providing guidance where needed.
• Responsible for accurate and timely fulfilment of mandatory agency finance processes. Working with line-manager and more junior team members to ensure processes are followed, allowing for prompt payment/invoicing and to minimise finance queries.

• 2-4 years of experience in Digital/Social Marketing or related industry
• Able to display a good foundation in setting up and optimising paid social campaigns across one of more of the key social platforms (Meta, Instagram, X, TikTok etc).
• To have certificates from these platforms, especially Meta Blueprint Planner and Buyer certifications, TikTok Media Buying, X Flight School Badges
• Any working experience in Digital Marketing or relevant internship programs
• Proficient with Microsoft Excel and PowerPoint
• Strong desire to learn and grow
• Effective communication skills and ability to adjust to a fast-changing environment
• Team player - able to receive and provide feedback professionally, thrive in a team environment and able to work collaboratively
• Passionate about digital media and technology and eager to keep learning 

• Strong analytical, creative thinking, problem solving and time management skills 
• Strive for excellence demonstrated by a commitment to continuous improvement, taking initiative and delivering results despite constraints Knowledge of digital marketing or hands-on execution experience across any Social platforms preferred 
• Proactively seek feedback on your work to take it to the next level 
• Detail oriented, meticulous, responsive to deadlines and able to multitask 
• Ongoing interest in digital marketing, industry trends, best practices and emerging technologies 

• Effectively run best practice compliant paid search campaigns; ensuring ongoing and timely optimisation is delivered and constantly looking for opportunities to improve performance.
• Take ownership of some of the elements of the testing plan, suggesting new ideas, planning, executing & evaluating tests with methodical accuracy.
• Ensure that wider client or team deliverables (such as performance commentary and weekly reporting) are prepared, working with other team members on delivery of this information, and ensuring quality of output is maintained.

• Conduct performance analysis, internal data maintenance, issue identification and solution development.
• Support on the day to day QA process across activation, minimizing error and risk, and ensuring consistent and accurate adherence to process.
• Identify gaps in achievement of goals, objectives and/or processes, and work with the line manager to improve performance and drive efficiencies.

• 2-4 years of experience in digital marketing and deep Paid Search knowledge and experience, with current dated certifications (Google Ads Apps Certification, AI Powered Shopping Ads Certification, Google Ads Creative Certification, AI Powered Performance Ads Certification, Google Ads Measurement Certification). 
• Understanding of bid management and core PPC technology platforms (Google Analytics, SA360 for example).
• Self-motivated and able to manage your and your direct report’s time effectively.
• Operationally proficient, with an affinity for numbers, an analytical thought process and keen to drive continued excellence.

Biz kimiz?

2017 yılında, dünya çapında milyonlarca insana benzersiz ve unutulmaz deneyimler sunma hedefiyle yola çıktık. Bugün oyunlarımız 3.5 milyardan fazla kişiye ulaştı. Bu başarı, yetenekli takımımız ve ekip ruhu ile yaratıcılığı besleyen güçlü bir kültürümüz sayesinde mümkün oldu. Bu heyecan verici yolculukta bize eşlik edecek, tutkulu takım arkadaşları arıyoruz!

Rol Tanımı

• Muhasebe kayıtlarını doğru ve güncel tutmak
• Faturaları yönetmek, ödemeleri gerçekleştirmek ve giderleri takip etmek
• Bağımsız denetim ve vergi denetimleri süreçlerine destek olmak
• Vergi beyannamelerinin hazırlanmasına destek vermek
• Ödeme ve tahsilat işlemlerini takip etmek
• Oracle NetSuite programında deneyimli olmak ve aktif şekilde kullanabilmek

Kimi arıyoruz?

• Lisans mezunu
• Uluslararası faturalandırma ve muhasebe işlemlerine hakimiyet
• Muhasebe ilkeleri ve finansal mevzuat hakkında güçlü bilgi sahibi
• Güçlü analitik, problem çözme ve iletişim becerileri 

Neden Good Job Games?

• Geri bildirim ve şeffaflığın merkezde olduğu bir çalışma ortamı
• Tutkulu ve yetenekli ekip arkadaşlarıyla birlikte çalışma fırsatı
• Her fikrin değer gördüğü bir kültür
• Sürekli gelişimi teşvik eden öğrenme anlayışı
• “Neden?” ve “Nasıl?” sorularını sormaktan asla vazgeçmeyen bir bakış açısı

Senin için neler var?

• Takım etkinlikleri
• Birbirinden lezzetli yemekler
• Ofiste spor salonu
• Bedelli askerlik ücreti desteği
• Özel sağlık sigortası - tam kapsamlı
• Taşınma Desteği
• Good Job Games Coin Programıyla unutulmaz deneyimler (Norveç Cruise gezisi veya Kuzey Işıkları izleme turu gibi seyahat programları)

Bu rol, İstanbul Sarıyer lokasyonunda ofisten çalışmayı gerektirmektedir. Uzaktan çalışma seçeneği sunmuyoruz.

Who are we? 

Logiwa is a premier provider of warehouse management and fulfillment software, offering cloud-based solutions designed for modern business needs. Our Logiwa IO Fulfillment Management System is crafted to support businesses in various sectors, including B2C, DTC, and third-party logistics (3PL). Unlike legacy WMS solutions, we deliver an agile, scalable, and innovative approach tailored to meet the demands of high-volume fulfillment.

With headquarters in Chicago and Istanbul, we operate internationally, assisting companies across North America, Europe, and Asia with cutting-edge warehouse management technologies.

Why work at Logiwa?

At Logiwa, our mission is to fulfill brilliantly. We aim to revolutionize fulfillment by combining innovative technology with human expertise, enabling businesses to operate smarter, faster, and more sustainably.  We envision a future where companies of all sizes can easily navigate the complexities of modern supply chains, optimize workflows, reduce costs, and enhance customer satisfaction. By combining cutting-edge technology with real-time insights, we strive to make supply chains smarter, more agile, and better connected.

We fulfill brilliantly for our people as well. 

At Logiwa, we prioritize accountability, responsiveness, and togetherness. We stand by our work with reliability and trust, ensuring everyone can count on us. Staying connected is key. We listen, respond, and value every conversation to build meaningful relationships with our customers and our coworkers, locally and across the globe.  Our collaborative spirit drives us to grow, learn, and innovate as a team, celebrating each other's successes and achieving more together.

Logiwans are creative innovators, analytical thinkers, supply chain specialists, relationship builders, and more. If you’re looking for a small but mighty team where your ideas have impact, and your career can take off, then Logiwa is a great place for you! 

The Job Details

We are seeking a highly skilled and experienced Team Lead to provide technical leadership for complex, high-impact, cross-functional projects. This role will lead a team of engineers while ensuring alignment with business objectives, maintaining technical excellence, and fostering a culture of collaboration and continuous improvement.

Key Responsibilities:

• Technical Leadership: Plan, organize, and oversee engineering projects that require expert application of advanced knowledge, cutting-edge technology, and system integration.Provide strategic technical leadership ensuring alignment with business goals and guiding the team to meet deadlines and deliverables.
• System Development & Maintenance: Design, develop, deploy, and maintain large-scale, complex software systems with a focus on scalability, availability, performance, and maintainability.
• Software Development Lifecycle(SDLC) Oversight: Implement best practices in agile methodologies to ensure quality code, continuous improvement, and efficient software architecture and design.
• Risk Management: Identify project risks early and develop mitigation strategies, ensuring timely project delivery with minimal disruptions.
• Code & Design Reviews: Conduct rigorous reviews of system architecture, code, and design documents to ensure adherence to best practices, patterns, and objectives.
• Cross-Functional Collaboration: Work closely with product management and other stakeholders to define product vision, roadmap, and growth opportunities while ensuring technical feasibility.
• Continuous Improvement: Champion initiatives to improve software performance, developer productivity, and delivery speed through the adoption of innovative tools and technologies.
• Mentorship & Team Development: Foster a culture of knowledge sharing, mentoring, and proactive problem-solving within your team, promoting continuous learning and professional growth.

Key Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field; Master’s degree preferred.
• 8+ years of experience in backend development, with proven experience in building and scaling large-scale distributed systems.
• Strong architectural expertise in microservices, event-driven architecture, and design patterns 
• Expertise in object-oriented design, SOLID principles, and modern software development practices.
• Expertise in .NET technologies (ASP.NET, .NET Core, etc.) with a deep understanding of the .NET ecosystem.
• Proven experience in API design, REST principles, and message queuing systems like RabbitMQ.
• Experience with RDBMS and NoSQL databases, including designing and optimizing data storage strategies.
• Hands-on experience with cloud platforms (Azure, AWS, GCP), and deploying cloud-native solutions.
• Strong knowledge of Git/GitLab, CI/CD pipelines, and version control best practices.
• Experience with containerization technologies such as Docker and Kubernetes (AKS preferred).
• Experience with monitoring and troubleshooting tools (e.g., Prometheus, Grafana, ELK).
• Experience in mission-critical, 24x7 environments with an emphasis on system uptime, redundancy, and incident response.
• Agile development experience, including Scrum or Kanban methodologies.
• Proven ability to lead,mentor, and develop engineering talent, fostering a culture of learning and innovation.
• Excellent communication skills in English (verbal and written) with the ability to explain complex technical concepts to non-technical stakeholders.
• Familiarity with WMS (Warehouse Management Systems) or similar domains is a plus.

Benefits:

At Logiwa we offer:

• 100% remote work
• Monthly home office allowance
• Competitive bonus structure
• Meal vouchers
• Private health insurance
• English language training
• Educational discount for master's degree from reputable private universities in Turkey
• Employee Assistance Program - confidential counseling and advice available by phone, web, or text
• An international team environment
• Regular team bonding events
• Community engagement opportunities like quarterly volunteer days

Location & Working Model

We are working on a full remote model. We have physical offices in İstanbul(Ataşehir Nidakule Kolektif House) where team members can get together and work collaboratively on a volunteer basis.

Company Culture

In Logiwa we give importance to creating a flexible and trusting workplace where everyone can work in harmony and be their best working self. We embrace teamwork and collaboration. We work hard but also play hard in monthly happy hours and team gatherings.

Note on safety: We’ll only contact you from @logiwa.com. We never request sensitive details (like bank information) during hiring.

Equal Employment Opportunity

In Logiwa we believe in the power of diversity. We hire without prejudice and discrimination against language, religion, ethnicity, race, gender, sexual orientation, age or disability status. We think that our diverse cultures, backgrounds, beliefs, values, abilities, and lifestyles help us learn from each other and create a stronger company culture. We’re proud to have a genuinely diverse and inclusive workplace. We hire solely on the basis of the measurable technical examinations and competency-based interviews with equity and equality in mind.

Find More About us🔎 :

• Our Company: https://www.logiwa.com/company
• Our Career Page: https://www.logiwa.com/careers
• Logiwa in the Press: https://www.logiwa.com/company/press-news
• Our tech stack : https://stackshare.io/logiwa/logiwa

Please follow Logiwa on LinkedIn and Youtube!