Presales Solution Architect (AWS Serverless / Python / React)

About the Role:

We’re looking for a part-time architect-level consultant to support proposal preparation and presales for projects similar to our GPP refactoring initiative:

• Legacy platform → modern AWS serverless, API-first architecture.
• Stacks typically include React + TypeScript, Python/FastAPI backends, Aurora PostgreSQL, and a range of AWS services (Lambda, API Gateway, S3, CloudFront, Cognito, WAF/Shield, EventBridge/SQS/SNS, etc.).

Key Responsibilities:

• Discovery & Solutioning

-Participate in early client calls to understand business goals, constraints, and legacy systems.

-Design high-level architectures and migration approaches (serverless/microservices, data migration, security, integrations).

-Identify risks, assumptions, and key technical decisions.

• Proposal & Estimation Support

-Draft technical sections of proposals: architecture overview, scope breakdown, approach, risks, and assumptions.

-Help structure effort estimates and phasing (MVP vs. full migration, waves, milestones).

-Prepare AWS cost estimates using AWS calculators and typical usage assumptions.

• Presales Collaboration

-Work closely with sales / account managers / delivery leads to align solution, scope, and commercials.

-Join client workshops / Q&A sessions, explain architectural choices, defend estimates, and adjust based on feedback.

-Create lightweight diagrams and slides that clearly communicate the proposed solution.

• Handover to Delivery

-Provide a clear architecture and scope handover to the delivery team: key decisions, priorities, and constraints.

-Optionally stay engaged as a lightweight advisor during project initiation (on-demand).

Requirements:

• 7+ years in software engineering, including architect / tech lead / solution architect experience.
• Strong practical knowledge of AWS (Lambda, API Gateway, Aurora/PostgreSQL, S3, CloudFront, Cognito, EventBridge/SQS/SNS, WAF/Shield).
• Familiarity with typical delivery stacks: Python (FastAPI or similar) and React + TypeScript.
• Proven experience with migration / refactoring projects (legacy monolith or low-code → modern cloud-native).
• Comfortable with effort estimation and AWS cost modeling at a presales level (ballparks, scenarios, assumptions).
• Excellent written and spoken English; able to write clear proposals and present solutions to non-technical stakeholders.
• Prior experience in a consulting, vendor, or agency environment is a plus.

Our benefits:

• Professional and career growth promotion;
• Competitive salary;
• Paid vacations and sick leaves;
• Internal Medical Program;
• Program for veterans (which includes mentorship, an accessible office for individuals with disabilities, legal support, and additional benefits);
• Flexible working hours;
• Regular corporate social activities;
• Regular technical training at our office;
• English courses;
• Gym, etc.