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About ZYSYGY
ZYSYGY is building Germany's zero-fee payment network. Merchants pay zero transaction fees. We route payments directly over SEPA Instant, bypassing Visa, Mastercard, and the entire card network chain. No hardware. No card reader. Just a phone.
We are building the first company to combine a fully software-based merchant POS with a consumer super-app for everyday financial life: payments, transport, utilities, government services, all in one place. Think what UPI did for India. We are doing it for Germany, from the ground up, on banking rails.
Role Overview
You will join the core engineering team as a founding engineer. You will own the backend payment engine end to end: transaction flows, wallet management, SEPA Instant settlement, KYB/KYC integration, recurring mandates, refund logic, and the compliance export layer (DATEV, Kassenbuch, GoBD, fiskaltrust). On mobile, you will contribute to the React Native consumer and merchant apps alongside our mobile engineer.
You will own what you build from development through deployment, monitoring, and production reliability. The architecture decisions you make in the first six months will run in production for years.
What you will do
Design and build the backend payment engine: transaction flows, wallet management, SEPA Instant settlement, offline payment authorization, and recurring mandate billing.
Own KYB/KYC integration and the compliance export layer: DATEV, Kassenbuch, GoBD, and fiskaltrust for KassenSichV.
Build REST APIs for financial-grade reliability and high-throughput transaction processing, including full R-transaction handling and reconciliation pipelines.
Contribute to the React Native consumer and merchant mobile apps alongside our mobile engineer.
Own the full lifecycle of what you build, from development through deployment, monitoring, and continuous improvement.
Integrate AI tooling into your development workflow as a matter of course: code generation, automated testing, and intelligent review.
Who you are
Meaningful hands-on experience building payment systems, fintech infrastructure, or financial APIs.
You have designed a ledger. You understand double-entry bookkeeping, immutable transaction records, and why you never update a financial row.
You have solved the partial failure. Money left one wallet and did not arrive in the other. You know how to detect it, resolve it, and make sure it does not happen again.
You understand idempotency at a design level. You have built systems that survive client retries, duplicate webhooks, and network drops without double-charging anyone.
You have built or reasoned about reconciliation: detecting discrepancies between your internal ledger and an external settlement file, and resolving them reliably at scale.
You understand KYC and KYB state machines, what happens when verification status changes mid-transaction, and what a regulator expects from your audit trail.
You are comfortable with SQL databases and own the full lifecycle of your code from development through deployment.
You can communicate technical decisions clearly to non-technical stakeholders. At this stage of the company, that matters.
You are a continuous learner. Payments infrastructure is a deep domain and you treat it that way.
You are comfortable with ambiguity and early-stage risk. There is no playbook yet. You will help write it.
Strong academic background preferred. Demonstrated engineering ability matters more than institution.
Relocation
Relocation to Munich, Germany, is on the table for the right candidate, including visa support.
Connect with the Founder
You can also connect with me on LinkedIn at www.linkedin.com/in/shabbir-maimoon
Strong Backend Engineer Profiles
Mandatory (Experience 1) – Must have 2+ years of hands-on Backend Engineering experience building production-grade systems in a B2B SaaS or product environment
Mandatory (Experience 2) – Must have strong backend development experience using at least one backend framework such as FastAPI / Django (Python), Spring (Java), or Express (Node.js)
Mandatory (Experience 3) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices
Mandatory (Experience 4) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling and query optimization
Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems (CRMs, payment gateways, ERPs, data platforms, etc.)
Mandatory (Experience 6) – Must have experience working in cloud-based environments (AWS / GCP / Azure) and be familiar with Git-based collaborative development workflows
Mandatory (Domain) – Experience with financial systems, billing platforms, fintech applications, or SaaS revenue-related workflows is highly preferred
Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D
Python. Django Rest Framework experience would be great, but not essential! We prioritise
quality over quantity.
Postgres with InfluxDB, Oracle, MySQL and Redis experience a plus.
Docker, Kubernetes, Helm, OpenShift and associated tooling.
AWS, especially ECS, Lambda, RDS and DynamoDB. Performance and uptime are super
important to us.
The challenge of scaling a global, distributed API to 10,000+ requests per second.
We have SDKs in a bunch of languages, so the more polyglot you are the better.
If you like writing JS and React that would be awesome too.
• Conducting analysis of website and application requirements.
• Writing back-end code and building efficient PHP modules using laravel.
• Developing back-end portals with an optimized database.
• Troubleshooting application and code issues.
• Integrating data storage solutions.
• Responding to integration requests from front-end developers.
• Finalizing back-end features and testing web applications.
• Updating and altering application features to enhance performance.
PHP Developer Requirements:
• Bachelor’s degree in computer science or a similar field.
• Knowledge of PHP web frameworks including Laravel, MySQL, API Development, OAuth, JWT, Git.
• Understanding of object-oriented PHP programming.
• Previous experience creating scalable applications.
• Proficient with code versioning tools including Git.
• Familiarity with MySQL databases.
• Ability to project manage.
• Good problem-solving skills.
- Mandatory skills -PHP Experience.
- Experience in web application development and web developer.
- Good Knowledge of PHP, MySQL, jQuery, Javascript, HTML5, CSS3, XML
- Good debugging skills .
- Expertise in MVC Frameworks and good technology exposure of CI/Larvel frameworks added advantage.
Collabsports Technologies Pvt Ltd is a sports-tech startup based in Pune, India. We are a small team, passionate about Sports & Technology. Our product, Scorpad is a mobile app with a mission “Sporting Made Smarter”, helps athletes in recording, analysing & improving their game while collaborating with their friends and other like-minded athletes. For more information, visit https://scorpad.com">https://scorpad.com
You need to be passionate about technology with strong OOPS background.
Must have strong PHP skills with PGSQL/ MYSQL
Good understanding of MVC & API Development
Experience in Bootstrap, Symphony/ CodeIgnitor
Willingness to learn new technologies
You should have a desire to work in startup fast-paced environment, able to self-manage and work remotely, when required.
Full Stack Magento Developer
Exp- 5-8 Years
Location-Jaipur
Job Description :
- We are looking to hire a skilled Magento Developer to build and maintain our eCommerce websites.
- As a Magento Developer, you will be responsible for liaising with the design team, setting up Magento 1x and 2x sites, building modules and customizing extensions, testing the performance of each site, and maintaining security and feature updates after the installation is complete.
Responsibilities
- Building and configuring Magento 1x and 2x eCommerce websites.
- Coding of the Magento templates.
- Developing Magento modules in PHP using best practices.
- Designing themes and interfaces.
- Setting performance tasks and goals.
- Updating website features and security patches.
Requirements:
- Must have the ability to develop Magento Modules and Customization, Extension Development.
- Experience: 5+ Years of relevant industry experience.
- Demonstrable knowledge of API integration, Payment Gateways, Shipping etc
- Full understanding of the Magento themes and templating systems.
- Strong understanding of Performance Tuning, Browser Compatibility, SEO Practices, and Version Control.
- Proven software development experience in PHP
- Understanding of open source projects like Joomla, Drupal, Wikis, osCommerce, etc
- Demonstrable knowledge of web technologies including HTML, CSS, Javascript, AJAX etc
- Good knowledge of relational databases, version control tools and developing web services
- Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
- Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
- BS/MS degree in Computer Science, Engineering or a related subject
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https://www.linkedin.com/company/steer-through/?viewAsMember=true" target="_blank">https://www.linkedin.com/company/steer-through/?viewAsMember=true
The candidates who are looking for new trajectories of growth and are determined to convert their vision into realities will find us a perfect team to work with.
We are looking for candidates who are experienced in Website Development preferably in the area of online marketplace/directory websites. The role is responsible for designing, coding, modifying, and maintenance of our website according to our business requirements.
Your day-to-day responsibilities include:
- Write well designed, testable, efficient code by using best website development practices
- Create website layout/user interface by using standard practices
- Integrate data from various back-end services and databases
- Gather and refine specifications and requirements based on business needs
- Create and maintain software documentation
- Be responsible for maintaining, expanding, and scaling our site
- Stay plugged into emerging technologies/industry trends and apply them into operations and activities
- Strong organizational skills to juggle multiple tasks within the constraints of timelines and budgets with business acumen
- Ready to take on additional responsibilities if and when required
Tech stack required:
- Frontend: HTML5, CSS3 (Bootstrap Framework) and JQuery
- Backend: PHP 7 and MySqli 8
- Server: Linux OS, Nginx Server
- DNS Management: CloudFlare
- Basic knowledge of the Search Engine Optimization process
Eligibility criteria:
- The candidate should have work experience in web programming with the above-mentioned tech stack
- The candidates with experience in the startup space will be given preference
We are looking for a full-time remote Senior Backend Developer who has worked with big data and stream processing, to solve big technical challenges at scale that will reshape the healthcare industry for generations. You will get the opportunity to be involved in the big data engineering, novel machine learning pipelines and highly scalable backend development. The successful candidates will be working in a team of highly skilled and experienced developers, data scientists and CTO.
Job Requirements
1) Writing well tested, readable code using Python that is capable of processing large volumes of data
2) Experience with cloud platforms such as GCP, Azure or AWS are essential
3) The ability to work to project deadlines efficiently and with minimum guidance
4) A positive attitude and love working within a global distributed team
Skills
1) Highly proficient working with Python
2)Comfort working with large data sets and high velocity data streams
3) Experienced with microservices and backend services
4) Good relational and NoSQL database working knowledge
5) An interest in healthcare and medical sectors
6) Technical degree with minimum of 2 plus years- backend data heavy development or data engineering experience in Python
7) Desirable ETL/ELT
8) Desirable Apache Spark and big data pipelines, and stream data processing (e.g. Kafka, Flink, Kinesis, Event Hub)









