Responsibilities

We are looking for a Senior Python Engineer to play a key role in building the core of our AI platform. In this position, you will design and develop production-grade systems that power intelligent automation, agentic workflows, and large-scale retrieval services. This is a highly technical, hands-on role that involves close collaboration with product and platform teams to transform advanced AI concepts into reliable, scalable, and secure solutions used across our enterprise ecosystem. You will also be responsible to:

• Design, build, and maintain AI-powered services and APIs, leveraging LLMs (OpenAI, Anthropic, Qwen, OSS models) and custom ML models.

• Develop an enterprise-grade agentic framework that enables orchestration, retrieval, and collaboration between multiple AI agents.

• Implement and optimize knowledge retrieval systems and agentic search capabilities using vector databases such as Qdrant and ElasticSearch.

• Write well-structured, efficient, and testable Python code for production services, experimentation, and internal developer tools.

• Build and maintain shared Python libraries and SDKs used across multiple applications and microservices.

• Collaborate with cross-functional teams on architecture, internal protocols, and API standards to ensure consistency and reliability across the platform.

• Develop and enhance monitoring, validation, and observability for production-grade AI solutions.

• Drive the full software development lifecycle - from design and implementation to deployment, monitoring, and continuous improvement.

• Identify and resolve performance bottlenecks, reliability issues, and scaling challenges in complex, data-intensive environments.

• Participate in code reviews and technical discussions, mentoring other engineers and contributing to a culture of excellence.

Example Projects

• Building an evaluation and observability framework for AI model performance and reliability.

• Developing an agentic orchestration platform that enables collaboration among multiple AI agents and tools.

• Implementing semantic retrieval and agentic search capabilities over large enterprise knowledge bases.

• Designing AI services that process and reason over high-volume real-world data at scale.

Requirements

Qualifications / Experience / Technical Skills

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

• 5+ years of experience as a Software Engineer, with strong proficiency in Python.

• Proven track record of building and maintaining production-grade systems using Python.

• Strong understanding of distributed systems, API design, and data-driven architectures.

• Experience with relational and non-relational databases (PostgreSQL, Elastic, Qdrant, or similar).

• Familiarity with AI/ML system design, including LLM integration and evaluation pipelines.

• Knowledge of DevOps and observability practices (CI/CD, monitoring, metrics, and model validation).

• Python • FastAPI • LLM APIs (OpenAI, Anthropic, Qwen, OSS) • LiteLLM • Qdrant • PostgreSQL • ElasticSearch • Langfuse • Kubernetes • GitHub Actions • ArgoCD

Preferred Skills

• Experience working with multiple LLM providers (OpenAI, Anthropic, Qwen, open-source models).

• Background in developer platforms or AI infrastructure services.

• Familiarity with vector databases, semantic retrieval, and knowledge graph architectures.

• Exposure to Langfuse, LiteLLM, LangChain, or similar frameworks.

• Experience developing enterprise-scale SaaS or distributed backend systems.

• Contributions to open-source projects in Python, AI, or infrastructure engineering.

Soft Skills / Personal Characteristics

• Excellent communication skills, with the ability to convey complex technical ideas clearly to both technical and non-technical audiences.

• Collaborative and proactive approach, comfortable working across teams in a dynamic environment.

• Strong analytical and problem-solving abilities, with a focus on continuous improvement and innovation.

• Curiosity and a genuine interest in emerging AI technologies and modern backend architectures.

(REQ ID: 2459)

Tech environment

This role is intentionally not defined by one framework or specialty. That said, you will likely operate in an environment that includes Python-based services and APIs, relational databases, data-warehouses, real time databases and SQL, event-driven or distributed systems, cloud infrastructure, containers, CI/CD pipelines, and observability tooling. Depending on the project, you may also work with AI APIs, LLM-based workflows, retrieval patterns, and automation tooling.

Nice to have

• Experience working on internal platforms, operational tools, or product-heavy backend systems.
• Experience with Python frameworks such as Django, Flask, or FastAPI.
• Experience with PostgreSQL, Snowflake, Tinybird, Redis, and SQL-heavy applications.
• Familiarity with event-driven architectures or messaging systems such as Kafka or RabbitMQ.
• Experience with AWS, Docker, Kubernetes, Terraform, or similar infrastructure patterns.
• Familiarity with observability and monitoring tooling.
• Exposure to AI-enabled product development, LLM integrations, RAG patterns, or workflow automation.
• Experience working on 0→1 initiatives or undefined problem spaces.
• Demonstrated leadership through ownership of difficult projects with broad impact.

What success looks like

• You turn ambiguous opportunities into working systems or products that create clear value.
• You help teams make better trade-offs and avoid overengineering, fragmentation, and local optimization.
• You improve not only what gets built, but also how decisions are made.
• You become a trusted technical leader for important cross-functional initiatives.
• You increase the leverage of other engineers and teams through your judgment, technical direction, and execution support.
• You help connect engineering work to real operational and business outcomes.

Who will thrive in this role

You will likely thrive here if:

• You are energized by ambitious, messy, high-leverage problems.
• You like operating where priorities evolve and the path is not fully defined.
• You care more about impact than about staying inside a narrowly defined engineering lane.
• You enjoy combining engineering depth, product thinking, and business context.
• You naturally look for the highest-leverage way to move a system, a team, or a product forward.
• You want to play a meaningful role in shaping how the company builds and scales. 

Why join Fever

• You will work on some of the company’s most strategic problems.
• You will have real ownership and visible impact.
• You will help shape products, systems, and capabilities that matter across the business.
• You will work in an environment that values ambition, adaptability, pragmatism, and execution.
• You will be surrounded by smart, driven people who care about building things that matter.

Benefits & Perks

• Flexible schedule
• 2 days per week at the office
• 40% discount on all Fever events and experiences
• Health insurance from Day 1
• English or Spanish Lessons
• Wellhub Membership
• Cobee (tax free allowance on restaurants and transport)
• Possibility to receive in advance part of your salary by Payflow

🚀 Launch Your Tech Career with the “Beca de Excelencia Fever” in Software Engineering

There is a belief that only Silicon Valley can create global technology leaders and that the best career opportunities are outside our borders. But Fever was born with the opposite belief: Spain has world-class talent, and from Spain you can build a global tech leader.

That’s why the “Beca de Excelencia” was created: to support and retain exceptional talent and accelerate the careers of future top engineers.

Our goal is to offer students the opportunity to start their professional career in a high-performing engineering team, surrounded by international professionals, an entrepreneurial mindset, and leaders in their respective fields.

Get all the information about the program in becasexcelencia.com

Why join us?

Because you won’t just be an intern — you’ll be a full member of the engineering team in a global tech company.

Fever has already found product-market fit and reached break-even, and we are now in a stage of strong execution and scaling. That means real challenges, real impact, and real ownership.

You’ll work alongside experienced engineers in software, product, data, growth and operations, on projects that impact millions of users. At Fever, Software Engineers have a high level of ownership. That means you will be involved end-to-end, from understanding the problem and designing the solution, to coding, deploying to production and monitoring performance. 

Engineering at Fever

As a Software Engineer at Fever, you will have real ownership from day one. Engineers are responsible end-to-end: understanding the problem, designing the solution, implementing it, deploying it to production and monitoring its performance.

We build scalable systems using a distributed services architecture, applying best practices such as Domain-Driven Design and clean architecture principles.

Tech environment

While this is a graduate program, you will be working with modern production systems and technologies used at scale.

Our core stack includes:

• Backend: Python (Django / FastAPI)
• Frontend: TypeScript with Angular
• Infrastructure: AWS, Docker and Kubernetes
• Architecture: REST APIs and event-driven systems

We focus on building reliable, scalable software used by millions of users worldwide.

What do we offer?

• A 6-month full-time placement (with the possibility to extend another 6 months) —and if things go great, a permanent contract afterwards.
• Compensation up to €24,000 per year for full-time.
• The first 6 months located at our offices in 📍 Madrid or 📍Barcelona.
• Compatibility with other university excellence scholarships.
• English classes to support your growth.
• A 40% discount on all Fever plans.
• Flexible remuneration with Cobee, gympass and private medical insurance. 
• Be part of a mission-driven tech company that’s transforming how millions discover live entertainment every month.

Who are we looking for?

• You’re in your final year of an engineering degree or you’ve just graduated (any engineering discipline).
• Your academic record is outstanding — you’re in the top 10% of your cohort.
• You’re excited about software development, tech solutions and building products that scale.
• You thrive in high-performance environments and have the skills and mindset to hit the ground running.

The job in short

To develop and deliver a production-ready banking platform across all verticals, therefore, being full stack is a big plus.

Meet the job

This role is part of a Backbase product team in R&D. It is a multidisciplinary team of experienced and highly skilled UX designers, software developers, QA engineers, and technical writers. As part of the team, you will contribute to new and existing functionalities, proof of concepts, and technical improvements that will be implemented in the Digital Banking Platform. Your autonomous team is responsible for the entire software development life cycle for the digital banking product suite: from idea to release. We work in Scrum in order to deliver new product increments through short cadences by closely cooperating with other departments as well as customers. You are expected to take ownership of what you build and proactively collaborate with architects, QA engineers and other team members to ensure implementation is done according to our technical vision and best practices.

Backbase provides a modern software solution developed in microservices architecture, ensuring financial institutions can build on the top of cutting-edge technology.  As such, many modern principles have been adopted such as continuous integration and delivery. We have also adopted Agile practices that contribute to rapid delivery, with decisions being driven out of the team with autonomy rather than top down.

• You have a solid background in software development including design;
• You are able to communicate clearly and confidently across all levels to get buy-ins from technical stakeholders as well as from your team members;
• Experience in the banking domain or fintech products will be considered an advantage;
• You have excellent communication skills in English, spoken and written;
•  You have experience with Python, Django, Fastapi, CI and CD;
• You have experience with microservices (SS is a plus);Cloud and traditional application servers (Gunicorn, uvicorn,, …);
• Knowledgeable of relational databases;
• You have experience with non-functionals such as security, performance, scalability etc.;
• Being a Full Stack developer is a huge advantage;
• You have a good understanding of Enterprise Integration Patterns.

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury London Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

Feel free to connect with me on LinkedIn - Freddie Mugridge

#LI-JB1