Mid or Senior Applied AI Engineer

Aviva plc; Warszawa, Polska; Hybrid; PLN 250,000 - 420,000; Full time

Benefits offered by this job

Performance Bonus

Private medical care

Employee Shares Plan

Hybrid working model

Paid time off

Job summary

Aviva plc in Warsaw is seeking a Staff Applied AI Engineer to design and deliver production AI agents and applied AI systems across Aviva’s operations. You will work across the applied AI stack and collaborate with product, architecture, data, risk and compliance teams to create measurable value.

You will help shape reusable engineering patterns, write robust Python, and ensure production reliability while balancing performance and compliance requirements.

Qualifications

• Strong Python programming and production‑quality code.
• Proven experience delivering large language model apps in production.
• Excellent communication with technical and business stakeholders.
• Bachelor's degree in CS/Engineering or equivalent practical experience.

Responsibilities

• Design, build and operate production‑grade AI agents.
• Define architecture decisions for AI systems.
• Define evaluation criteria covering quality, safety, fairness and compliance.
• Turn business needs into practical AI solutions with product teams.
• Write clean Python and use AI‑assisted engineering tools.
• Ensure production reliability and monitor cloud resources.
• Identify and escalate AI risks including compliance.
• Provide technical guidance and participate in reviews.

Skills

Python

Production AI

LLM Applications

Stakeholder Collaboration

Education

CS/Engineering degree

Equivalent practical experience

Tools

AWS Strands

OpenAI Agents SDK

DSPy

MCP servers

Job description

Hi, we're glad you're here! We are hiring to our Aviva Services Excellence Centre! Take a look at our job description - maybe it suits you or one of your friends? We are looking for a Staff Applied AI Engineer to join Aviva Services Excellence Centre (ASEC) and help design and deliver production AI agents and applied AI systems that create measurable value across Aviva’s customer-facing and internal operations. This is a senior, hands‑on engineering role for someone who can work independently across the applied AI stack—from context engineering and agent orchestration to evaluation, memory and multimodal interfaces. You will partner with product, business, architecture, platform, data, risk and compliance teams, while helping shape the reusable engineering patterns that define how AI is built at Aviva.

What will you be doing?

• Designing, building and operating production‑grade AI agents, context pipelines and applied AI services.
• Making architecture decisions for individual AI systems, including framework selection, orchestration patterns and memory strategy.
• Defining evaluation criteria before development begins and implementing robust evaluation frameworks covering quality, safety, fairness and compliance.
• Turning business needs into practical AI solutions in close partnership with product and business teams.
• Making pragmatic build-versus-reuse decisions and contributing reusable components, standards and canonical engineering patterns.
• Writing clean, testable Python code and use AI‑assisted engineering tools effectively.
• Maintaining production reliability, monitoring cloud and API resource usage, and supporting incident response for deployed AI systems.
• Identifying and escalating architectural, data, compliance and responsible AI risks.
• Providing technical guidance to less experienced engineers and contributing actively to architecture and design reviews.

What we’re looking for?

Must have:

• Strong Python engineering skills and a track record of writing clean, testable, production‑quality code.
• Proven experience delivering large language model applications in production, such as AI agents or advanced context pipelines.
• Strong communication skills and the ability to work effectively with both technical and business stakeholders.
• A degree in computer science, engineering, mathematics or a related discipline, or equivalent practical experience.
• A demonstrable portfolio of production AI or large language model engineering work.

Preferably:

• Deep understanding of context engineering, including chunking, embedding selection, hybrid search, re‑ranking, knowledge graphs and prompt construction.
• Hands‑on experience with agent orchestration frameworks such as AWS Strands, OpenAI Agents SDK, Google ADK or DSPy, or with implementing agent loops directly through APIs.
• Practical experience building or consuming Model Context Protocol (MCP) servers.
• Experience implementing production evaluation frameworks using tools such as DeepEval, Arize Phoenix, Galileo or LangSmith.
• Understanding of session, long‑term and semantic memory architectures, including frameworks such as Mem0.
• Experience with AWS and operating AI systems in production.

Great to have:

• Experience fine‑tuning models using tools such as Unsloth, Axolotl or Hugging Face TRL.
• Experience with speech‑to‑text or text‑to‑speech models, such as ElevenLabs, Deepgram or Qwen, in end‑to‑end voice solutions.
• AWS certification, such as Solutions Architect Associate or higher.
• Experience in financial services, insurance or another regulated industry.
• Working knowledge of data protection and customer‑outcome requirements as they apply to AI systems.

In Aviva Services Excellence Centre, we provide:

• Contract of employment Performance Bonus Private medical care (ENEL-MED) Cafeteria system of benefits (e.g. MultiSport card) Additional parent privileges:
• baby leave – 6 weeks leave for second parent
• shortened working time after parental leave Employer‑funded group insurance Employee Shares Plan Extra day off for birthday Paid time off to volunteer Additional leave acquired over the years in the company (even 5 days more in a year) Wellbeing Leave
• additional two weeks paid leave after 10 years of service Psychological support consultations Access to the e-learning platforms Internal employee referral program Hybrid working model from Poland with a few days in Warsaw office per month Attractive office location in Warsaw - Gdański Business Center
• Gdański Business Center Additional entitlements for people with disabilities
• Work Without Barriers Work environment that promotes diversity
• Diversity Charter

Aviva is for everyone!

We’ve been ranked the #1 Best Workplace in Poland for a second year in a row and a top choice for Millennials by Great Place to Work.

As a signatory to the Diversity Charter, Aviva applies a policy of equal treatment and creates a work environment that is friendly to people with disabilities.

We do not require from candidates the date of birth, marital status and attached photos to your CV. We encourage all individuals regardless of gender to apply.

Most of our people are smart working – spending also time in our office - combining the benefits of flexibility, with time together with colleagues.

We’re inclusive - we welcome applications from people with diverse backgrounds and experiences.

We help our 19.5 million customers to save for the future and manage the risks of everyday life. To give these customers the best possible products and service we know we must make Aviva the most attractive choice for talented, entrepreneurial people with diverse backgrounds and an evolving range of expertise and insight. So, we’re passionate about helping our 23,000 people to do the best work of their lives, to enable them to make a positive difference to the lives of our customers.