Senior Product Engineer, Agent Systems

Mactores is a trusted leader among businesses in providing modern data platform solutions. Since 2008, Mactores have been enabling businesses to accelerate their value through automation by providing End-to-End Data Solutions that are automated, agile, and secure. We collaborate with customers to strategize, navigate, and accelerate an ideal path forward with a digital transformation via assessments, migration, or modernization. About Aedeon Aedeon is the agent-native modernization platform for the enterprise. We turn the systems already running the business, applications, databases, data platforms, business rules, and workflows, into governed AI agents, grounded in a persistent Code Intelligence Graph of the customer's own code and verified through behavior-equivalence proof. Aedeon is delivered as a product, not a services engagement, and runs without mandatory forward-deployed engineers.

As Senior Product Engineer on Aedeon's Agent Systems team, you'll build the agents that do the actual modernization work. Aedeon's product surface is the agent fleet itself: parsers that read legacy estates, extractors that lift business rules out of code, synthesizers that stand up agentic workflows, verifiers that produce behavior-equivalence proof. You'll design and ship those agents. Aedeon is product-led, not services-led. The agents you build are the product. They run against the Code Intelligence Graph, a persistent semantic representation of the customer's estate, and operate under governed autonomy with shadow, supervised, and autonomous stages. You'll write Python every day, orchestrate frontier foundation models through the Aedeon Decision Model, and ship into the same release discipline the rest of the product team holds. This role does not require prior Bedrock or LangChain experience. It requires a strong Python engineer who treats agent frameworks as something to learn deeply, not a buzzword. Aedeon is technically demanding, with real enterprise customers in regulated industries and audit chains that must stay intact. We're looking for someone who writes Python they'd be proud to read in a year, treats test cases as a first-class deliverable, and uses AI tools to do the job better and faster.

What will you do?: Agent Systems Development

Build and ship specialized agents in the Aedeon fleet: parsers, business-rule extractors, dependency mappers, test synthesizers, behavior replayers, and the orchestration that wires them together.

Design agents that operate against the Code Intelligence Graph rather than generating from priors, so every agent action traces to a line of code.

Implement governed autonomy: shadow, supervised, and autonomous stages with human-in-the-loop controls at every stage.

Orchestrate frontier foundation models (Anthropic, OpenAI, Google) through the Aedeon Decision Model: pick the right model for each task, against the right slice of the graph, under explicit governance constraints.

Release Ownership

Own the full delivery of assigned agents from prototype through deployment and post-release validation.

Commit to sprint and release deadlines. Raise blockers and risks with enough lead time to mitigate them.

Coordinate with platform and DevOps engineers to keep deployment pipelines clean and repeatable.

Verification and Quality

Practice test-driven development. Write the tests for the agent's contract, governance constraints, and equivalence checks before the agent code that satisfies them.

Build behavior-equivalence verification into every agent: dual-run tests, output diffing, equivalence certificates against production traffic.

Write detailed test cases before deployment, covering functional flows, edge cases, regression scenarios, and integration touchpoints.

Use AI tools to generate qualitative test coverage at scale and validate it for completeness.

Maintain automated test suites (unit, integration, E2E) and integrate them into the CI/CD pipeline.

Collaboration and Documentation

Write clear, maintainable Python with adequate documentation. Review pull requests thoroughly and provide constructive feedback.

Document agent contracts, prompt structures, decision logic, and verification approaches in Confluence or equivalent.

Share patterns and testing practices across the team. Promote a culture of release discipline and quality.

What are we looking for?: Core Python and Systems

Strong Python (4+ years production), async (asyncio), performance optimization, idiomatic code.

Solid grasp of distributed systems concepts: state machines, retries, idempotency, eventual consistency.

Experience integrating with LLM APIs (Anthropic, OpenAI, or similar) from production code: streaming, function calling, structured output, retries, prompt management.

Comfort with FastAPI or equivalent async web frameworks.

Cloud and Infrastructure

Working knowledge of AWS services: EKS, ECS Fargate, S3, DynamoDB, Lambda, Secrets Manager, CloudWatch.

Experience with Docker and Kubernetes: writing Dockerfiles, Helm charts, and Kubernetes manifests.

Comfort with CI/CD pipelines, GitHub Actions preferred.

Comfort navigating multi-account AWS environments (dev, uat, prod).

Testing and Automation

Test-driven development as a discipline. Tests written before the code, not after.

Hands-on experience with pytest, integration testing, and E2E testing.

Ability to design behavior-verification harnesses: dual-run, output comparison, equivalence proof.

Experience using AI tools (Claude, Copilot, LLM-based test generators) to accelerate and improve test case quality.

Experience integrating automated tests into CI/CD pipelines.

Engineering Mindset

Test-first, release-disciplined, ownership-driven.

Strong written and spoken English. You'll be in product reviews and customer-impacting design discussions.

Available to work with US business-hour overlap from India.

You'll be preferred if: Agentic AI frameworks: AWS Bedrock AgentCore, Strands SDK, LangChain, or similar.

Temporal.io or other workflow orchestration engines.

Graph databases (Neo4j) and Cypher query language.

Amazon OpenSearch Service or Elasticsearch.

Java exposure for working with the Java Analyzer component.

Prior B2B SaaS product work with a structured release process.

Domain exposure to enterprise modernization: mainframe, SAP, Oracle, or large Java / .NET estates.

Life at Mactores   We care about creating a culture that makes a real difference in the lives of every Mactorian. Our 10 Core Leadership Principles that honor Decision-making, Leadership, Collaboration, and Curiosity drive how we work.  

1. Be one step ahead
2. Deliver the best
3. Be bold
4. Pay attention to the detail
5. Enjoy the challenge
6. Be curious and take action
7. Take leadership
8. Own it
9. Deliver value
10. Be collaborative   We would like you to read more details about the work culture on https://mactores.com/careers    The Path to Joining the Mactores Team At Mactores, our recruitment process is built around distinct structured stages. Here's an overview of what to expect at each stage: Take-home Assessment:  You will be given a technical task relevant to the role, allowing you to demonstrate your thinking and approach at your own pace. 

Technical Interview:One of our panel members will engage with you in a hands-on, in-person session to assess your technical skills, hands-on experience, and how you approach delivering quality under pressure.  Panel Interview: A structured conversation with members of the hiring team covering your experience, product thinking, and how you work. HR Discussion: During this 30-minute session, you'll have the opportunity to discuss the offer and next steps with a member of the HR team.

At Mactores, we are committed to providing equal opportunities in all of our employment practices, and we do not discriminate based on race, religion, gender, national origin, age, disability, marital status, military status, genetic information, or any other category protected by federal, state, and local laws. This policy extends to all aspects of the employment relationship, including recruitment, compensation, promotions, transfers, disciplinary action, layoff, training, and social and recreational programs. All employment decisions will be made in compliance with these principles.     Note: Please answer as many questions as possible with this application to accelerate the hiring process.