CyberCraft

We are looking for a Senior AI Platform Engineer to build and scale the infrastructure behind production AI agents.

Our AI agents conduct live conversations — including training role-plays, outbound calls, and interviews — and turn conversations into scores, summaries, and coaching insights.

What you'll work on

• AI Agents: Build and run production voice/conversational agents, including state, interruptions, latency, configuration, versioning, and testing.
• Durable Workflows: Design event-driven pipelines using queues, webhooks, retries, and idempotent processing.
• LLM Pipelines: Build multi-step analysis pipelines using frontier and open-source models, balancing quality, latency, and cost.
• Evals & Observability: Build tracing, evaluations, and quality gates for agents, prompts, and models.
• Architecture & Data: Own technical decisions and design secure multi-tenant systems using PostgreSQL.

• Engineering: Review code, write design notes, improve architecture, and help other engineers grow.

   

What we're looking for

• Production experience building and operating AI agents with real users.
• Experience with voice agent platforms or open-source agent frameworks.
• Strong understanding of latency, interruptions, state, and production failure modes.
• Production experience with durable workflows and event-driven systems.
• Hands-on experience with retries, queues, webhooks, and idempotency.
• Experience shipping LLM-powered features with frontier or open-source models.
• Experience with LLM observability, tracing, and evals.
• Strong PostgreSQL skills, including schema design and migrations.
• Strong TypeScript and comfortable with Python.
• Strong written English and solid technical communication.

Nice to have

• Speech/transcript pipelines at scale.
• Speaker diarization and long-form audio processing.
• Open-source voice agent frameworks.
• SIP, telephony, phone carriers, or WebRTC.
• Building eval sets that gate prompt/model changes.
• Next.js and Supabase.
• Open-source contributions to AI, voice, or LLM tooling.

How we work

• AI-assisted coding is expected — we care about your ability to verify and judge AI-generated code.
• Written-first: design notes, clear PRs, and async communication.
• PR + CI for every change.
• Staging before production.
• Regular code reviews and pairing.
• Small team, high ownership, direct impact on architecture and product.

Why join

You'll own a meaningful part of the production AI stack, from live voice interaction to durable processing, LLM analysis, evaluation, and the final product experience.

If you match most of the requirements but not all of them, apply anyway.

We are looking for an experienced IBM i (AS/400) Developer with practical COBOL experience to support a legacy modernization project involving COBOL and IBM i runtime functionality.

The initial engagement will focus on a small technical assessment and development pilot. You will review existing documentation and reference examples, clarify the expected behavior, and implement or recreate a limited backend function in an IBM i environment.

What we're looking for

• Strong hands-on experience with IBM i / AS400
• Practical development experience with COBOL on IBM i (ILE COBOL, COBOL/400, or equivalent)
• Good working knowledge of CL / CLP (Control Language)
• Solid understanding of core IBM i concepts, including:
  • Libraries
  • Physical files and file members
  • Jobs and program execution
  • File overrides
• Experience compiling, debugging, and troubleshooting applications directly on IBM i
• Ability to understand existing legacy code and documentation and reproduce the intended system behavior
• Ability to work independently when some technical requirements need to be clarified during the assessment

COBOL does not need to be your primary technology, but hands-on experience with COBOL is important for this project. Experience with other legacy technologies or legacy modernization projects is also relevant.

Responsibilities

• Review existing IBM i, COBOL, and CL documentation and reference examples
• Help clarify the expected behavior and technical requirements of the initial pilot
• Implement, modify, or recreate selected backend functionality on IBM i
• Work with IBM i libraries, physical files, file members, jobs, and related runtime logic
• Compile, debug, and test COBOL and CL programs in an IBM i environment
• Validate implemented behavior against available examples and test cases
• Identify missing technical information or dependencies required for implementation
• Document important assumptions and implementation decisions

Nice to have

• Experience with legacy modernization projects
• Experience working with or migrating legacy applications to Java or other modern technologies
• Experience analyzing existing legacy systems where documentation is incomplete
• Experience with other IBM i development technologies

What to expect

This is a focused technical engagement where your ability to understand existing IBM i/COBOL functionality and reproduce its behavior will be more important than experience with a specific modern technology stack.

If you have solid IBM i experience and have worked with COBOL at some point in your career, we would be happy to hear from you.

We are looking for an experienced IBM (AS/400) developer to support a legacy modernization project involving COBOL and IBM i
runtime functionality.
The initial engagement will focus on a small technical assessment and development pilot. The work will involve reviewing existing
documentation and reference examples, clarifying the required behavior, and implementing or recreating a limited backend function on IBM 

Required Experience

• Strong hands-on experience with IBM i / AS/400.
• Practical development experience with COBOL on IBM i (ILE COBOL, COBOL/400, or equivalent).
• Good working knowledge of CL / CLP (Control Language).
• Solid understanding of core IBM i concepts, including libraries, physical files, file members, jobs and program execution, and file
  overrides.
• Experience compiling, debugging, and troubleshooting applications directly on IBM i.
• Ability to understand existing legacy code and documentation and reproduce the intended system behavior.
• Ability to work independently when some technical requirements need to be clarified during the assessment.

Responsibilities

• Review existing IBM i, COBOL, and CL documentation and reference examples.
• Help clarify the expected behavior and technical requirements of the initial pilot.
• Implement, modify, or recreate selected backend functionality on IBM i.
• Work with IBM i libraries, physical files, file members, jobs, and related runtime logic.
• Compile, debug, and test COBOL and CL programs in an IBM i environment.
• Validate the implemented behavior against available examples and test cases.
• Identify missing technical information or dependencies required for implementation.
• Document important assumptions and implementation decisions.