Jobs at Djinni

💻 We’re hiring: Senior PHP Developer (Payments)

We’re building next-gen payment infrastructure for high-volume, high-risk merchants.

Looking for a Senior PHP Developer to build and scale core payment systems — integrations, APIs, and backend architecture.

⚙️ What you’ll do:

• Build and scale payment processing systems & APIs
• Integrate acquirers, processors (RocketGate focus), and payment methods
• Develop merchant dashboards & monitoring tools
• Implement fraud, disputes, and chargeback flows
• Design high-load, high-availability backend systems

🎯 You should have:

• Strong experience in payments (CNP / high-risk)
• Solid PHP / Laravel background
• Experience with processor integrations & payment flows
• Understanding of PCI DSS & secure systems
• Experience building scalable, high-throughput systems

✨ What you get:

• Fully remote & flexible
• High ownership, no micromanagement
• Direct impact on core product

If you’ve built real payment systems at scale — let’s talk 🚀

What this is about
 

We are a fast-growing software house looking for a mid-level GoLang Software Engineer to join a fully remote team.

Your main focus will be the backend: designing and building reliable services, APIs, and data flows, improving the architecture and performance of our platform, and turning product requirements into robust systems that users rely on every day.

At the same time, you will not work in isolation from the rest of the stack. You will collaborate closely with the frontend and infrastructure side, and when needed you may also touch deployment, databases, and other parts of the platform. We value engineers who understand how the product works end to end, even if their strongest area is backend.

If you enjoy building clean, maintainable systems, solving complex technical problems, and care about reliability, performance, and good software architecture, this position is for you.
 

How we think about AI
 

AI coding tools are part of our daily work, and we want them to be part of yours too. For us, they are a great way to:

• write faster the parts you already understand, while always reviewing, validating, and correcting what they produce
• reason through problems and test new solutions
• learn something new along the way

What we are not looking for is someone who pastes output they would not be able to understand or explain.

The tool speeds up the work, but your brain must remain the one making the decisions.
 

What you will do
 

• Develop and release new backend features from start to finish
• Design, build, and maintain reliable services and APIs in Go
• Work with databases, queues, caches, and other backend infrastructure
• Improve the performance, scalability, and reliability of existing services
• Collaborate closely with frontend and infrastructure engineers
• Write clean, well-tested, maintainable, and production-ready code
• Debug and troubleshoot issues across distributed systems
• Work with different stakeholders in an async-first environment
   

Who we are looking for

• At least 2 years of experience as a software engineer, preferably with a strong backend focus
• Experience with Go (Golang) is required
• Good understanding of backend development, REST APIs, databases, concurrency, distributed systems, and service-oriented architecture
• Familiarity with SQL and working with relational databases
• Ability to write clean, maintainable, and well-tested production code
• Comfortable debugging issues and reasoning about performance and reliability
• Independent thinking: AI is a tool, not a shortcut to avoid thinking
   

What we offer

• Fully remote work from anywhere in the European time zone
• Flexible hours, async-first culture, zero micromanagement
• Location-based benefits, where applicable

What this is about
 

We are a fast-growing software house looking for a mid-level Frontend Software Engineer to join a fully remote team.

Your main focus will be the frontend: building modern, polished, and user-friendly interfaces, improving the product experience, and turning ideas into features that users interact with every day.

At the same time, you will not work in isolation from the rest of the stack. You will collaborate closely with the backend and infrastructure side, and when needed you may also touch the services behind the scenes. We value engineers who understand how the product works end to end, even if their strongest area is frontend.

If you enjoy building clean, modern interfaces and care about how a product feels to use, this position is for you.
 

How we think about AI
 

AI coding tools are part of our daily work, and we want them to be part of yours too. For us, they are a great way to:

• write faster the parts you already understand, while always reviewing, validating, and correcting what they produce
• reason through problems and test new solutions
• learn something new along the way

What we are not looking for is someone who pastes output they would not be able to understand or explain.

The tool speeds up the work, but your brain must remain the one making the decisions.
 

What you will do
 

• Develop and release new frontend features from start to finish
• Build modern, responsive, and maintainable user interfaces
• Work mainly with JavaScript / TypeScript on the frontend
• Improve the usability, performance, and quality of existing interfaces
• Collaborate with backend engineers
• Write clean, well-tested, and maintainable code
• Work with different stakeholders in an async-first environment
   

Who we are looking for

• At least 2 years of experience as a software engineer, preferably with a strong frontend focus
• Good command of JavaScript / TypeScript
• Experience with Vue.js or React is required
• Good understanding of modern frontend development, component-based architecture, APIs, state management, and UI quality
• Independent thinking: AI is a tool, not a shortcut to avoid thinking
   

What we offer

• Fully remote work from anywhere in the European time zone
• Flexible hours, async-first culture, zero micromanagement
• Location-based benefits, where applicable

We are looking for UAV Pilot & Technician for Defense Tech company.

This role combines drone piloting with hands-on technical work - preparing UAVs for flights, supporting testing activities, and maintaining systems in both lab and field environments.

You will work closely with engineers, participate in test flights and demonstrations, and help ensure systems are reliable and ready for real-world use.

Responsibilities:

• Operate UAVs (fixed-wing or multirotor) during test flights and demonstrations.
• Prepare UAVs for flight: basic setup, configuration checks, and pre-flight inspections.
• Assist in assembling, configuring, and calibrating UAV systems.
• Support ground and flight testing to verify system performance.
• Work with flight controllers (ArduPilot, iNav, Betaflight) for basic setup and tuning.
• Install and configure onboard components such as cameras, antennas, telemetry modules, and payloads.
• Work with communication protocols such as CRSF, MAVLink, SBUS, CAN, and UART (at a practical level).
• Understand basic radio communication principles (signal, interference, antennas).
• Identify and resolve technical issues in the field or during testing.

• Requirements:
  Experience operating UAVs (fixed-wing or multirotor).
• Basic technical understanding of UAV systems, electronics, and components.
• Experience with at least one UAV platform (ArduPilot, iNav, or Betaflight).
• Ability to perform basic troubleshooting and repairs.
• Comfortable working in field conditions.
• Attention to detail and responsible attitude toward safety.
• English level B2 or higher - ability to communicate with international teams.
• Willingness to travel for testing and operational activities.

We Offer:

• Official employment in accordance with Ukrainian labor law.
• Military service deferment.
• Modern working equipment (MacBook or other preferred hardware).
• Regular performance reviews to support your professional growth.
• 24 working days of paid vacation annually.
• Paid sick leaves.
• English language classes.
• Compensation for educational and training programs.
• Team buildings and corporate events in a friendly and collaborative environment.

Our client, a high-tech defense company at the forefront of innovation, is looking for a Sales Engineer.

This role is for for a proactive and technically skilled Sales Engineer for a key role in connecting innovative technology with customer needs. As a Sales Engineer you will work closely with clients to understand their needs, provide technical solutions, and support the sales process with deep product knowledge and expertise.

Responsibilities:

• Participate in customer meetings together with Account Executives and Account Managers.
• Conduct technical discovery to understand the customer’s platform, architecture, operating environment, performance requirements, and constraints.
• Recommend suitable products, configurations, interfaces, and integration approaches.
• Identify where standard products meet the customer’s needs and where custom development or engineering assessment may be required.
• Recognise technical risks, dependencies, and product-fit limitations early in the sales process.
• Support customers during initial configuration, bench testing, integration, and field testing.
• Act as the main technical interface between Sales and Engineering for active commercial opportunities.
• Provide Engineering with sufficient context, including the customer’s use case, expected volumes, project stage, urgency, and commercial importance.
• Contribute to improving the company’s technical discovery, evaluation, and handover processes.

Skills Requirements:

• Good technical understanding of electronic, radio communication, telecommunications, embedded, robotics, or unmanned-system products.
• Experience in sales engineering, pre-sales engineering, technical account management or a similar customer-facing technical role.
• Ability to understand a customer’s system architecture and convert operational needs into technical requirements.
• Ability to explain complex technical concepts clearly to both technical and non-technical stakeholders.
• Strong analytical and troubleshooting skills.
• Ability to organise technical information and produce clear documentation.
• Ability to work across Sales, Engineering, and Integration teams.
• English at B2 level or higher.

Nice to have:

• Experience with UAVs, UGVs, USVs, robotics, defence technology, or other unmanned systems.
• Understanding of radio communication fundamentals, including frequency bands, link budgets, antennas, modulation, interference, and data rates.
• Experience supporting hardware integration, field testing, or proof-of-concept projects.

The Company Offers:

• Official employment with a competitive salary and clear, transparent cooperation terms.
• Paid vacation (24 calendar days per year) and paid sick leave.
• Support for your professional development — the company is actively growing, and you will have the opportunity to grow with it.
• Military reservation.
• A team of like-minded professionals working toward a common goal.

Requirements:

• Work experience: 2+ years of proven experience in affiliate marketing / the iGaming industry.
• Analytical background: A clear understanding of basic metrics in traffic analysis and the ability to make data-driven decisions.
• Tools: Proficiency and confidence in working with tracking tools.
• English: B2 (Upper-Intermediate) level or higher - for fluent communication with international partners both at conferences and in written chats.

Will be a plus:

• Proven experience working with Tier-1/2/3.

What we offer:

• Exclusive product: We only have private offers that aren't available in other networks.
• Global travel: We regularly attend top international conferences and meetups across Europe (and beyond), fully covered by the company.
• Strong team: Our team already consists of 13 awesome specialists and 2 Team Leads ready to support you and share their expertise.

Format: Fully remote, but if you are in Warsaw, we’ll be glad to welcome you to our office.

Benefits

• An exciting and challenging job in a fast-growing business groups, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
• Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
• Beautiful offices in Warsaw, Limassol, Kyiv, Almaty, Yerevan — work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day
• Modern corporate equipment based on macOS or Windows and additional equipment are provided
• Paid vacations, sick leave, personal events days, days off
• Corporate health insurance program for your well-being
• Referral program — enjoy cooperation with your colleagues and get the bonus
• Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
• Rewards program for mentoring and coaching colleagues
• Yoga classes to help you stay active and energized
• In-house Travel Service
• Multiple internal activities: online platform for employees with quests, gamification, presents and news, RedCore clubs for movie / book / pets lovers, special office days dedicated to holidays
• Corporate events, team buildings

About Globy

Globy is a B2B marketplace for wholesale and international trade. More than 100,000 businesses use it to source products and connect directly with verified suppliers, manufacturers and wholesalers across every country and industry. Alongside the marketplace, Globy runs a set of logistics tools, freight rate and load calculators and an unclaimed cargo directory, that help traders move goods.

The marketplace is free to join with no commissions, and we are now building the paid side of the business. Organic search is one of our biggest growth channels, and we are hiring the person who will own it and take it to the next level.
 

What You'll Do

This is a lead role. You own SEO end to end, set the strategy, and are accountable for the growth number. You will not be handed a playbook. You build it.
 

Your mission: scale Globy's organic traffic from 10-30k to 100,000+ monthly visits, and build and run the team that gets us there.

You will:

• Set the SEO strategy and roadmap, and bring new growth ideas, not just execute a list
• Own technical SEO across a marketplace with thousands of pages, working hand in hand with our developers
• Build and manage a team of copywriters and link builders
• Own content and topical authority, off-page and digital PR, and AEO and GEO
• Tie organic to signups and paying customers, and report the number every week
   

What success looks like:

• Organic from 10-30k to 100,000+ monthly visits
• A content and link team you built, producing quality work that ranks and converts
• Organic driving real signups and paying customers, not just sessions
   

Compensation: base and bonuses by KPI (10-20% from yearly salary)
 

Time commitment: full-time, Remote
 

This Will Be For You If…

• You have 3-5+ years of SEO for e-commerce, marketplace, or classifieds sites
• You have run a site at 100,000+ monthly organic visits
• Will be a plus: You have personally scaled a site from roughly 20-30k to 100,000+ organic visits, and can show the numbers
• You are used to working with and influencing development teams
• You have built and managed a team of copywriters, link builders and similar (incl freelancers and contractors)
• You have experience with AEO
• You lead, originate ideas, and are driven by growth and clear targets
• You are fluent in English and work within European timezone overlap
   

Why Join Us

• A true lead role: you own the channel, the strategy, and the 100k target
• A real traffic base and a large marketplace to grow, not a cold start
• A direct line to the Founder, C-management and real influence over how we grow
• KPI bonuses tied to results you control
• Build and run your own team
• Fully remote, European timezone
   

Do Not Apply If…

• You need a brief handed to you and do not set your own direction
• Your background is only blog, local, or lead-gen SEO
• You cannot show a real scaling story with numbers

Interested? Apply now!

This isn't a redesign job. We're not looking for someone to rebuild the store or reinvent the brand.

We're looking for a designer who can take an existing page and design the specific change we want to test - a new PDP layout, a reworked add-to-cart section, a different way of showing shade options. Small, sharp, focused work. Lots of it.

What you'll actually be doing

• Designing test variants: focused changes to pages we already have, not full page builds from scratch
• Working across PDPs, collection pages, cart, homepage sections and the modules in between - sticky ATC, badges, upsell blocks, pop-ups, navigation
• Designing landers for paid funnels - advertorials, listicles, pre-sell and quiz pages that carry the ad's message through to the buy
• Producing multiple takes on the same idea so we can find out which one works
• Working inside the existing brand and design system, not around it
• Designing mobile first - that's where most of the traffic and most of the problems are

What you need to bring

• 3+ years designing for e-commerce, ideally DTC
• A portfolio that shows conversion work, not just pretty pages - we want to see the before, the after, and what changed
• A real understanding of DTC CRO: what makes people buy, where they drop off, and why a page fails
• Experience designing landers for paid traffic
• Fluent in Figma - clean components, proper auto-layout, files someone else can pick up
• Able to design inside someone else's brand guidelines without fighting them
• Designing tests for split-tests in multiple variations

• Comfortable being told your design lost. Opinions are fine, data settles it.

   

Nice to have

• Beauty, cosmetics or personal care background
• Experience designing emails for Klaviyo flows

• Experience designing for Shopify stores specifically

   

Why this role

• You'll see the impact of your work in revenue, not in likes
• Real traffic - your work goes live and gets measured
• Direct line to decision-makers. No six-step approval chain to change a button.
• Competitive Salary

• Work at one of the fastest growing direct to consumer brands in Europe

   

If you are still reading this and this sounds exciting respond to this post with your best work and we will get in touch!

Promin Apps is a product-first company on a mission to help people feel better, move more, and live healthier lives — physically and emotionally.

At the intersection of AI, data, behavioral science, and personalization, we build thoughtful digital products that support fundamental lifestyle changes — from yoga and fitness to better habits and mental well-being.
Now, we’re looking for a user-centric Product Marketing Manager — someone who will drive real growth by deeply understanding the audience, crafting compelling product narratives, and bridging the gap between user needs and business goals.

What to expect:
— Focus on Tier-1 markets (US and others) with strong early traction and growth potential;
— Startup spirit: flat structure, transparency, and true ownership;
— Supportive leadership that values creativity, speed, and initiative;
— Robust infrastructure for rapid experimentation — funnel builder, analytics, and an expanding A/B testing base;
— Collaborate with an experienced UA, Creative Production and PPC team — no need to handle traffic directly;
— Clear career path into Lead, Head of Product, Head of Product Marketing, or General Manager roles as the company scales.

What you will do:
— Own and optimize the full conversion funnel — from onboarding to purchase — with a strong focus on web flows, monetization models, and pricing;
— Design, test, and scale new monetization strategies to outperform market benchmarks and increase ARPU, Conversion, LTV;
— Run A/B tests end-to-end, analyze results, and quickly implement data-driven improvements;
— Research markets, competitors, and user behavior (via interviews, heatmaps, and analytics) to uncover growth opportunities and user pain points;
— Formulate and validate hypotheses across different funnel stages using both quantitative and qualitative data;
— Collaborate cross-functionally with UA, Creative Production, Design, and Analytics to ensure alignment, fast execution, and measurable impact.

What we’re looking for:
— 3+ years of experience in Growth, Product Marketing, or Product roles, including B2C subscription-based products;
— Proven track record in conversion optimization, monetization, and pricing strategy (web experience highly preferred);
— Strong hands-on experience in A/B testing, data analysis, and data-driven decision-making;
— Solid understanding of unit economics, key product and marketing metrics;
— Ability to conduct market and competitor research and analyze user behavior to identify growth opportunities;
— Expertise in launching and scaling products from scratch, owning key growth and marketing processes end-to-end.
— Analytical yet user-centric mindset, with the ability to balance monetization goals and customer value;
— Confident English (B2+)​.

What we offer:
— Work from anywhere with a fully remote setup that adapts to your lifestyle;
— Flexible working hours that align with your most productive rhythm;
— Basic benefits package, including paid vacation, sick leave, and more;
— Personal and professional support, with advocacy available when you need a hand;
— Access to a curated corporate library filled with resources to fuel your continuous learning and development.

We’re not looking for someone to just “join the team” — we’re looking for someone ready to shape the product, lead meaningful growth, and make an impact from day one.
If that sounds like you — send over your CV, and let’s talk!

Description

    We are looking for a proactive and detail-oriented Business Analyst to bridge the gap between business vision and technical execution. In this role, you will act as a key liaison between business stakeholders, UI/UX designers, and engineering teams. You will be responsible for eliciting, analyzing, and translating complex business needs into clear, actionable requirements, ensuring seamless delivery and alignment across all project streams.

    Our client is innovative manufacturer of medical devices in the United States which produces devices and software applications.
At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Be the one who writes the next page in Healthcare!

Requirements

1. Experience: 5+ years in Business Analysis or Product Management on complex software projects.
2. PO Mindset: Demonstrable experience acting as a proxy-Product Owner. Experience with roadmapping, backlog grooming, and strategic planning in an Agile/Scrum environment is essential.
3. Proactivity & Leadership: Strong history of “owning” the solution. You must be a self-starter who identifies process bottlenecks and fixes them without waiting for permission.
4. Communication Skills: Exceptional ability to communicate complex technical and clinical information to diverse audiences. 
5. Tooling: Proficiency in Jira and Confluence, specifically for managing traceability and documentation.

6. English: Upper-Intermediate+

    

Job responsibilities

• Responsible for developing and owning all documentation capturing business and functional requirements
• Collaborate with cross-functional teams to design and propose business solutions
• Engage with the client to understand/develop/articulate business requirements
• Develop business and functional product knowledge and expertise for engaged clients to complement product engineering and design
• Engage with the client to influence and steer decision-related to Product Strategy/Design based on market and customer requirements
• Collaborate with internal teams to develop product based on industry trends and customer needs

Location: Remote / Europe

Employment: Full-time

Reports to: Board / Founders

Who We Are 

We are an international holding company developing innovative businesses across the financial services and technology sectors.

Our portfolio includes projects in payments, digital financial solutions, asset management, and fintech infrastructure. We work with experienced partners, technology providers, and financial institutions to build scalable products for global markets.

As part of our strategic expansion, we are launching a new card business direction - combining digital banking solutions, payment cards, and innovative financial services. Together with an experienced industry partner holding the necessary technology and regulatory infrastructure, we are building a modern card product under our own brand.

We are now looking for a Product Manager who will take full ownership of this new direction - from business strategy and product development to commercial performance and market growth.

This is a unique opportunity to become the key person responsible for building a new fintech product from the early stage and shaping its future development.

What You Will Do

Product Strategy & Ownership

• Take full ownership of the card business direction and lead product development from concept to launch.
• Define product strategy, roadmap, positioning, and growth opportunities.
• Work closely with technology partners, payment providers, and internal teams to deliver the product.
• Develop strategies for both digital and physical card products.

Commercial Model & Analytics

• Build and optimize the card business model, including revenue streams, pricing, interchange economics, and profitability.
• Develop financial models, calculate unit economics, margins, and growth scenarios.
• Define and monitor key product metrics: acquisition, activation, retention, transaction volumes, and customer satisfaction.

Product Launch & Operations

• Lead the end-to-end launch of digital and physical card products.
• Coordinate collaboration with technology, legal, compliance, operations, and external partners.
• Manage processes related to card issuance, delivery, and customer experience.

Partnerships & Growth

• Manage relationships with payment partners, processors, technology providers, and other stakeholders.
• Support expansion of the product ecosystem and identify new growth opportunities.
• Develop go-to-market strategies and drive product scaling.

Ideal Candidate Profile

Experience

• 5+ years of experience in fintech, digital banking, payments, or card products.
• Proven experience launching or managing payment products, digital banking solutions, or card programs.
• Strong understanding of card business models, payment processing, interchange economics, and product monetization.
• Experience working with Visa / Mastercard ecosystems is highly preferred.
• Background in fintech startups, neobanks, payment companies, or financial platforms is a strong advantage.

Skills

• Strong product ownership mindset with the ability to lead a new business direction independently.
• Excellent commercial, analytical, and financial modeling skills.
• Ability to build business cases, evaluate unit economics, and make data-driven decisions.
• Strong stakeholder management skills and experience working with external partners.
• Entrepreneurial mindset and hands-on execution approach.

Languages

• English - required.

Why This Role

• Opportunity to build a new fintech product from the ground up.
• Full ownership of a strategic business direction within an international holding company.
• Direct collaboration with founders, investors, and key industry partners.
• Ability to influence product strategy, commercial model, and market positioning.
• International exposure across fintech and financial services markets.
• High level of autonomy and impact.
• Fully remote full-time position.
• Competitive compensation package.
• Paid vacation and sick leave.

Skylum empowers millions of photographers to create incredible images. Our award-winning photo editing software combines AI-powered automation with full creative control. We make editing enjoyable, easy, and accessible for everyone.

 

You’ll join an environment where growth, learning, and creativity are encouraged. Flexible schedules, trust-based workflows, and a supportive team give you everything you need to focus on your best work.

 

🇺🇦 Proudly Ukrainian, Skylum stands with Ukraine through action, regularly supporting organizations that help accelerate our victory.


 

Required experience: 
 

• 3+ years of professional C++ development experience
• Good knowledge of modern C++ (C++17/C++20)
• Understanding of RAII, move semantics, STL, and basic template programming
• Experience with multithreading and performance optimization
• Strong analytical and problem-solving skills
• Ability to decompose technical tasks and estimate implementation effort
• Experience working in a collaborative team environment
• Understanding of scalable and maintainable software design principles
• Responsible approach to product and code quality
• CPU optimization skills
• English at B2 level (C1 is preferred)
   

Nice to have:

• Experience with graphics APIs (Vulkan, Metal)
• Basic understanding of GPU acceleration / compute shaders
• Familiarity with ML inference frameworks (ONNX Runtime, OpenVINO, CoreML, DirectML)
• Experience of low-level CPU optimization techniques - SSE/AVX/NEON intrinsics or Assembly language
• Background in computer vision, image, or video processing
• Experience with CMake
• Experience developing cross-platform solutions
• Experience optimizing applications for resource-constrained environments
• Experience taking part in technical sales and commercial exploration of new projects or products or experience working in early-stage startups

What we offer

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;
• An educational allowance to ensure that your skills stay sharp;
• English, German and Polish classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll call friends quickly;
• The choice of working remotely or in our office space located on Podil, equipped with everything you might need for productive and comfortable work.

For health:

• Medical insurance;
• Twenty-one days of paid sick leave per year;

For leisure:

• Twenty-one days of paid vacation per year;
• Fun times at our frequent team-building activities.

What to expect when you apply

• An interview with our Talent Acquisition Manager
• Professional interview
• Management interview
• And finally, your job offer!

Level: Senior E

ngagement: Long-term contract 

Location: Europe (EU / EEA / UK), remote 

Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior SDET to lead the design of automated test frameworks and testing strategy for a large-scale distributed data platform. You will own the quality of the query engine, connectivity layer, and backend services end-to-end — from framework architecture through CI/CD infrastructure across all major clouds — and mentor middle engineers on the team.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Architect, design, and evolve automated test frameworks in Python / pytest for backend services, REST APIs, and distributed data components.
• Define testing strategy for new features and platform components — coverage, risk assessment, and quality gates.
• Own end-to-end, integration, performance, and regression testing covering SQL query execution, data correctness at scale, and platform APIs.
• Lead performance and load testing efforts with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Design and validate large-scale data testing scenarios — query plans, result correctness across heterogeneous data sources, metadata consistency, and behavior under high concurrency.
• Own CI/CD test pipelines in Jenkins — architect, maintain, and continuously improve.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker; drive automation and reproducibility.
• Investigate complex, cross-layer failures and drive root-cause analysis with engineering.
• Mentor middle SDETs, review test designs, and set quality standards across the team.
• Partner with US-based development leads on shift-left practices, testability, and release readiness.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with deep understanding of OOP, software design principles, and test framework architecture.
• SQL & Data: Advanced SQL skills and strong understanding of relational and analytical data systems, including query execution internals.
• Data-intensive testing experience: Demonstrated experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 5+ years in backend/system test automation, with demonstrated ownership of test strategy and infrastructure.
• CI/CD & DevOps: Solid experience architecting and maintaining Jenkins pipelines and test environments.
• Containers & Orchestration: Strong working knowledge of Docker and Kubernetes (running workloads, debugging pods, deploying complex environments).
• Cloud: Hands-on experience with at least one major cloud (GCP, AWS, or Azure); exposure to more than one is a strong plus.
• Version Control: Confident with Git / GitHub workflows and code review practices.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.
• Leadership: Prior experience mentoring engineers, defining test strategy, or leading a QA/SDET function.

Desired Skills

• Deep experience testing REST APIs and backend microservices at scale.
• Hands-on with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Strong understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools at production scale.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Deep understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
• Prior experience leading a QA/SDET function in a data-platform or database engineering environment.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is looking for an AI Builder / Full-Stack Engineer to join an early-stage startup with a very small team and a high level of ownership.

The company is building an AI-native product for the janitorial industry that automates the processing of large volumes of complex documentation, including contracts and RFPs. The product analyzes this information and generates accurate, detailed bids, including pricing, equipment selection, and task breakdowns down to the room and space level.

This role is ideal for an engineer who can take an AI capability end-to-end — from designing agents and backend systems to building the product experiences through which users interact with them. You’ll work across AI/LLM engineering, backend systems, data pipelines, and full-stack product development.

Key Requirements:
🔹 Strong commercial experience with AI/LLM engineering and backend development;
🔹 Strong Python engineering skills;
🔹 Hands-on experience building AI agents, LLM workflows, or AI-native systems;
🔹 Experience designing backend services, APIs, data pipelines, and working with databases;
🔹 Ability to work with unstructured data and build systems for processing and analyzing complex information;
🔹 Experience integrating and working with LLM APIs and AI models;
🔹 Comfortable building full-stack product features and modern web UIs;
🔹 Experience with React, Next.js, and/or Node.js;
🔹 Strong understanding of system design, data modeling, debugging, and infrastructure;
🔹 Experience testing AI systems and evaluating the quality of model outputs;
🔹 Ability to take an AI capability from agent/backend logic through to a usable customer experience;
🔹 High level of ownership and ability to independently drive technical work from architecture to production;
🔹 Comfortable working through ambiguous product and technical requirements in a fast-paced startup environment;
🔹 Pragmatic approach to engineering — knowing when to build deeply and when to ship quickly;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Experience working specifically with contracts, RFPs, or other complex business documentation;
🔹 Experience building UIs for managing or interacting with AI agents;
🔹 Experience with both commercial and open-source AI models;
🔹 Previous experience in the janitorial / cleaning services industry or similar domain;

What you will do:
🔹 Design and deploy agentic AI workflows, agent harnesses, and orchestration systems;
🔹 Develop and maintain the backend for AI agents that process and analyze contracts, RFPs, and other complex documents;
🔹 Build pipelines for large volumes of unstructured data, including OCR and vision-based document and image analysis;
🔹 Integrate AI tools and models, including OpenAI, Google, and open-source models, using Python;
🔹 Build AI agent orchestration using LangChain, Deep Agents, and similar frameworks;
🔹 Build backend services, APIs, data pipelines, and core infrastructure;
🔹 Own data flows across ingestion, transformation, storage, retrieval, evaluation, and application usage;
🔹 Design and maintain databases, including Postgres and MongoDB;
🔹 Build full-stack product experiences around AI capabilities, including agent interfaces, review/approval flows, and AI-assisted workflows;
🔹 Collaborate with frontend development using React, Next.js, and Node.js to integrate AI agents into the product;
🔹 Turn structured and unstructured AI outputs into polished user-facing experiences, documents, and product workflows;
🔹 Build datasets and testing approaches for AI systems and implement evaluation metrics, including LLM-as-a-judge and statistical evaluation;
🔹 Debug model behavior, pipeline failures, data quality issues, frontend/backend integration, and system performance;
🔹 Own complex technical problems end-to-end, from architecture and implementation through production;
🔹 Build reliable, scalable, and secure systems for an AI-native product;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview — 30 min;
🔹 Non-technical / Culture Fit Interview — 60 min;
🔹 Deep Technical Interview — 1 hour;
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Project description

Our client is a global provider of financial market data, managing multiple change programs to deliver high-quality software that connects financial markets worldwide through real-time, high-frequency, low-latency data management systems. These projects are technically demanding and operate in a dynamic environment.

The Real-Time division has initiated a Cyber Security Issues Remediation program to address critical security vulnerabilities across its cloud infrastructure and deployment pipelines. The objective is to remediate identified security issues, harden CI/CD pipelines, implement security best practices, and strengthen the overall security posture of the Real-Time platform on AWS.

Responsibilities

Identify and resolve security vulnerabilities in AWS infrastructure, applications, and CI/CD pipelines.

Build and optimize CI/CD pipelines to support automated and secure software delivery.

Deploy and manage applications using Docker and Kubernetes.

Manage secrets, privileged access, and artifact repositories.

Implement security, monitoring, logging, and disaster recovery best practices.

Collaborate with engineering and security teams to improve platform reliability and security.

Support cloud migrations and infrastructure hardening initiatives.

Skills

Must have

Strong experience in DevOps engineering (10+ years)

Experience with AWS security services and compliance frameworks

Strong experience containerizing applications using Docker

Hands-on experience deploying and managing Kubernetes clusters (preferably Amazon EKS)

Hands-on experience with HashiCorp Vault and PAM (Privileged Access Management)

Strong experience designing and implementing CI/CD pipelines using GitLab CI/CD, Jenkins, Azure DevOps, or GitHub Actions

Experience implementing automated build, test, deployment, and release pipelines

Nice to have

Hands-on experience in using AI tools (e.g., GitHub Copilot)

Familiarity with financial services / clearing / trading platforms

Other

Languages

English: C1 Advanced