Senior Software Engineer (AI Infrastructure)

Highlights:

Location: Turkey, remote

Engagement type: Part-time, 10–20 hrs/week — flexible schedule, but high responsiveness required 12:00–18:00 CET

Language: Russian-speaking team

About Fundraise Up
We’re Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design.

Our platform is trusted by many of the world’s leading nonprofits, including UNICEF, the Alzheimer’s Association, and a wide range of global NGOs. With a 4.9/5 rating across top software review platforms, we’re recognized not just for our impact - but for the quality of the product we deliver.

A Truly Global Product

We operate in the enterprise segment, serving nonprofit organizations across North America, the United Kingdom, Australia, and Europe.

We’re building a
large and complex product ecosystem
that serves nonprofits, donors, and partners around the world. The platform includes a modern
checkout experience and customizable widgets
(each a standalone SPA),
donor, organization, and partner portals
,
admin tools
, and several internal apps.

Our backend is powered by
Node.js
(Koa, NestJS) and
MongoDB
. The frontend stack includes
Webpack, Vue.js, and React
, with nearly all code written in
TypeScript
. For high-throughput messaging and background processing, we use
Kafka
(for millions of events) and
Bull (Redis)
. Analytics data is stored in
ClickHouse
, and we use
Elasticsearch
for search.

The Team

We are a distributed team of 160+ product professionals, including 80+ engineers. Our team members are mainly based across Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Many of our developers bring 5 - 10+ years of experience, and we foster a culture of deep technical curiosity and knowledge sharing.

Despite our scale, we operate like a focused team - where every task matters and every voice is heard. We value thoughtful collaboration, strong engineering practices, and a product mindset. You’ll be joining a team where quality, mentorship, and mutual respect come first.

About The Role
The best internal tools disappear — they just make everyone else faster. As our Tools Engineer, you'll build and maintain the automations, bots, and AI assistants that quietly remove routine work across the company. This is a generalist, fullstack-with-backend-bias role: you'll touch our project-management system, Slack and Telegram, and a growing set of AI-powered assistants, and you'll be trusted to decide how each problem should be solved. It's distinct from QA automation — your mandate is internal productivity, not test infrastructure.

Key Responsibilities

• Own internal automation for our project-management system (TargetProcess) — building custom rules, workflow logic, and integrations with other internal systems.
• Design and ship bots for Slack and Telegram that carry out real work — creating tasks, delivering notifications, and answering routine requests.
• Automate recurring operational processes — on-call/duty announcements, absence notices, reminders, and similar workflows that would otherwise need manual attention.
• Build AI-powered assistants and agents that help employees get fast, accurate answers and complete routine tasks.
• Build lightweight internal mini-projects that support company events and culture (for example, a prediction/betting site for New Year).
• Document every solution you ship — what it does, how it works, and how to operate or extend it — so tools stay maintainable and don't depend on any one person.
• At Fundraise Up, AI is a default tool, not an experimental one. We expect every team member to actively use AI in their day-to-day work, identify where AI can change the shape of problems in their function, and grow their fluency as the tools evolve.

Skills And Qualifications

• 5+ years of professional software development experience, including automation, bot development, and process automation
• Fullstack capability with a clear backend bias
• Strong knowledge of JavaScript/TypeScript and Node.js
• Experience with at least one modern frontend framework (React, Vue, Angular, Svelte, or similar)
• Experience with serverless platforms (Cloudflare Workers, Vercel, or equivalent)
• Experience with MongoDB, ClickHouse, and/or PostgreSQL — comfortable working across both relational and non-relational databases
• Practical experience building bots for Slack and/or Telegram
• Hands-on experience automating processes and integrating third-party APIs
• Working knowledge of OpenAI/LLM APIs
• Able to work autonomously, make decisions, and own outcomes without close supervision
• Reliable in honouring commitments and agreements
• English proficiency sufficient for daily written and verbal communication
• Able to maintain strong availability/responsiveness during 12:00–18:00 CET, even on a flexible part-time schedule

Nice to Have

• Experience building RAG pipelines or agent-based systems

You'll Thrive Here If You…

• You'd rather build the tool that removes the work than do the work by hand
• You're comfortable owning a wide, shifting surface of systems with no single "home stack"
• You take documentation seriously — you write it so someone else could pick up your work tomorrow
• You can be handed an ambiguous "this is annoying, fix it" problem and turn it into a shipped automation
• You're reliable by default — if you commit to something, it happens
• You like the flexibility of part-time contract work but don't use it as an excuse to be hard to reach
• You're curious about AI tooling and treat it as a working part of your toolkit, not a side experiment

Compensation

• $28 – $32 per hour, based on 10–20 hrs/week.
• Please note: All official correspondence from Fundraise Up will exclusively originate from the @fundraiseup.com domain. Exercise caution and ensure the authenticity of emails claiming to be from our company.

We are an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, gender, sexual orientation, gender identity or expression, age, national origin, disability, or any other characteristic protected by applicable law in the countries where we operate.

About the job

About the Team

At Trendyol Tech, our mission is to create a positive impact in our ecosystem by enabling commerce through technology.

We solve complex problems with data, creativity, and agility — always driven by real outcomes. With a culture built on learning, collaboration, and ownership, we grow together while building what’s next.

About the Role

As an Application Security Engineer, you’ll work closely with Trendyol’s engineering teams to enhance application security across our platforms. You’ll perform web and mobile security testing, validate fixes through code reviews, and provide expert guidance on secure coding practices. In this role, you’ll support our bug bounty program, develop custom security tools, and help drive root-cause analysis and remediation. We’re looking for a collaborative, open-minded teammate who is eager to improve, communicate clearly, and promote security best practices throughout the organization.

Your Main Responsibilities:

• Ability to work collaboratively in a team environment and is a friendly, humble, responsible teammate.
• Be a subject matter expert and guidance to Trendyol Engineering for secure coding practices, application security.
• Experience in performing web security testing on web applications and mobile applications.
• Ensuring to confirm of the fix of the vulnerability by making manual code review on the relevant commit.
• Experience identifying and protecting against web application and web-service security vulnerabilities including those found in the OWASP Top 10.
• Experience in fixing vulnerabilities, documenting and remediation guidance for discovered vulnerabilities.
• Developing custom security tools and security rules(e.g. Semgrep / Nuclei)
• Promoting security best practices among developers.
• Ability to conduct root cause analysis against vulnerabilities and determine feasible technical solutions.
• Managing Bug Bounty Platform.

Qualities We Are Looking For:

• Experience with multiple programming/scripting languages (such as, Java, Golang, Python etc.)
• Having excellent communication skills.
• Experience with vulnerability management and enterprise remediation efforts.
• Being an Agile minded team player.
• Eagerness on self-improvement, open-minded, future-oriented.
• English language skills for reading technical documentation and to fix the vulnerabilities with international developers.
• Professional certification (e.g.
  eWPT
  ,
  eWPTXv2
  ,
  OSWE
  ,
  eMAPT
  ,
  GWAPT
  ) preferred.
• Familiarity with front-end and back-end web application frameworks (i.e. Spring, Gin, React, etc).
• Bonus points for community contributions like public CVEs, bug bounty recognition, blogs, etc.

About the team

We’re shaping the future of financial technology at Trendyol.

As Trendyol’s technology teams, we’re not only building for today we’re designing the financial experiences of tomorrow. From payment infrastructure and digital wallets to smart credit systems and personalized financial services, we create solutions that empower millions of users across our ecosystem.

With Trendyol Pay, we enable fast, secure, and seamless payment journeys. Through Trendyol Finance, we develop inclusive and accessible products that simplify financial decisions.

We are united by a shared purpose:To create a positive impact in our ecosystem by enabling commerce through technology

About the Role

As a Network Engineer at Trendyol, you will be responsible for strengthening our dynamic fintech infrastructure and ensuring our network and security architecture operates with maximum uptime, robust security, and high performance.

Your Main Responsibilities:

• Responsible for the deployment, configuration, and end-to-end management of the company's network, firewall, and load balancer infrastructure.
• Maintain a 7/24 high-availability, low-latency, and highly secure environment (PCI-DSS compliant) capable of handling high-volume financial transactions.
• Optimize application traffic using load balancing configurations and design redundant, high-availability (HA) architectures.
• Rapidly respond to network issues and security incidents, perform root cause analyses (RCA), and proactively harden the infrastructure against emerging threats.

Qualities We Are Looking For:

• Deep theoretical and practical foundation in switching, routing, TCP/IP protocols, VPNs, VLANs, and dynamic routing protocols (BGP, OSPF, etc.)
• Hands-on experience with enterprise-grade firewalls, rule management, NAT, IPS/IDS, and security policy design.
• Experience in L4/L7 load balancing
• Prior experience in fintech, banking, or managing high-traffic, mission-critical environments is a plus.
• Proven ability to diagnose and resolve complex network and security issues efficiently.

What We Offer

A hybrid working model with flexibility —
a schedule that helps you find the right balance between flexibility and team bonding, including work-from-abroad opportunities and a summer working model.

A customizable FlexBenefits budget —
Adjust your daily meal allowance, choose your health insurance package (and extend it to your spouse or children), and pick from additional benefits like fuel support or Trendyol shopping credits.

Comprehensive wellbeing support —
Take advantage of our extended health package, which includes annual mini health screenings, access to location-based in-house doctors, psychologist and dietitian support, and HPV vaccination coverage.

Personalized training allowance and learning opportunities —
Use your annual budget for any training or conference of your choice, explore our Learning Management System (LMS) anytime, and join in-person learning sessions offered throughout the year.

Responsibility from day one —
Take full ownership from the start in a culture where every voice is heard and valued.

A diverse, international team —
Collaborate with global peers across our offices in Berlin, Amsterdam, Dubai, and beyond, in a startup-spirited and collaborative environment.

Opportunities to grow with the best —
Tackle meaningful challenges, develop through hands-on experience, and grow with the support of expert guidance and global mentoring.

Meaningful connections beyond tasks —
Be part of team rituals, events, and social activities that help us stay connected and inspired.

Take the Next Step

If this role excites you, apply now and let’s take the next step together.

Want to get to know the team better first? Explore our

Career Website

,

LinkedIn

, or

YouTube

to learn more about #LifeatTrendyol and how we work.

Shape Your Future at Ticimax!
🚀

Position:
IT Manager (System Administration and Infrastructure)

Location:
Kozyatağı Allianz Tower (Hybrid)

Take a Step Closer to Your Dream Career!
Ticimax, the center of e-commerce, is looking for frontier IT Manager (System Administration and Infrastructure) to join its dynamic team! If technology is your strength and you are a fast learner, you are the person we are looking for!

What We Offer You:

• Express Your Creativity: A space where you can freely share your ideas.
• Continuous Development: Opportunities for training and career growth to advance every day.
• Energetic Team: A supportive and fun working atmosphere.
• Innovation Hub: The chance to work with new technologies and trends to make a difference in the industry.
• Feedback Culture: An environment where you can receive continuous feedback to enhance your performance.
• Celebrating Success: Regular events to celebrate team achievements and boost motivation.

Who We Are Looking For:

• Bachelor's or higher degree in Computer Engineering, Information Technology, or a related field.
• At least 10 years of experience in IT management and system infrastructure management, with 3+ years in leadership roles.
• Advanced knowledge in vSphere/ESXi, Windows Server (2022), Linux (Debian/Ubuntu), and Kubernetes management.
• Experience in DevOps processes (CI/CD), container technologies, and network security.
• Comprehensive knowledge of backup and disaster recovery plans (e.g., Veeam, Zabbix).
• Experience with PCI DSS and ISO 27001 compliance processes.
• Strong communication skills and team management capabilities.
• Strategic thinking ability to optimize technical and business processes.

Preferred Qualifications:

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Participation in large-scale infrastructure projects.
• Holding cybersecurity certifications (e.g., CISSP, CISM).

Responsibilities:
Team Management:

• Lead the IT team (system administrators, network administrators, DevOps engineers, security specialists, etc.).
• Provide training and mentorship to evaluate and improve the performance of the current team.
• Identify team needs and manage recruitment processes.

Strategic Planning:

• Develop short and long-term strategic plans for IT infrastructure growth needs.
• Research new technologies and tools and integrate them into existing systems.

System Management:

• Ensure the seamless operation of all systems (physical, virtual, and Kubernetes-based).
• Monitor system performance and lead improvement processes.
• Oversee the implementation of backup, disaster recovery, and business continuity plans.

Compliance and Security:

• Ensure and audit compliance with PCI DSS Service Provider Level 1 and ISO 27001 requirements.
• Develop and implement policies to reduce cybersecurity risks.

Operational Management:

• Optimize processes to provide uninterrupted service in accordance with SLAs.
• Plan the IT budget and manage costs effectively.
• Prepare regular reports on all systems and present them to senior management.

Does This Interest You?
If you’re ready to make an impact in the e-commerce landscape, we want to hear from you!🌟