Principal Engineer – API Modernization (AI & Agent Systems)
ABC Financial Services18 hours ago
Hyderābād, IndiaStaff+
Responsibilities
- Lead modernization efforts for core APIs and platform interfaces supporting AI-native workflows and automated consumers.
- Define and drive company-wide standards for AI-ready APIs, including deterministic behavior, schema consistency, validation, observability, versioning, and operational safeguards.
- Refactor legacy systems for structured machine consumption, orchestration layers, MCP integrations, and scalable agent workflows.
- Design backend systems and APIs for high-concurrency automated traffic, orchestration loops, and resilient distributed workflows.
- Establish architectural guardrails for idempotency, rate controls, validation, authorization, and failure containment.
- Partner with AI orchestration, platform engineering, and domain engineering teams to enable scalable integration patterns.
- Provide technical leadership and architectural guidance across multiple engineering organizations.
- Lead design reviews, mentor senior engineers, and improve engineering standards and architectural maturity.
- Develop pragmatic modernization strategies balancing future-state architecture, production constraints, and incremental delivery.
- Align platform architecture, API strategy, and AI enablement initiatives across the organization.
Requirements
- 10+ years of software engineering experience with deep expertise in backend systems, distributed architectures, and platform engineering.
- Demonstrated success architecting, building, and evolving complex APIs and distributed systems at scale.
- Experience modernizing legacy platforms and mission-critical production systems without disrupting business operations.
- Deep understanding of API contracts, schema design, deterministic behavior, observability, validation, versioning, authentication, authorization, and integration reliability.
- Experience driving technical strategy and influencing architecture across multiple teams and organizations.
- Strong fundamentals in resiliency, scalability, performance, operational excellence, and distributed systems design.
- Ability to operate as a senior technical leader and subject matter expert in a complex engineering organization.
- Experience mentoring senior engineers and leading architectural discussions.
- Pragmatic decision-making skills balancing architecture goals with delivery timelines and system constraints.
- Experience with gRPC, Protocol Buffers, GraphQL, or other strongly typed API frameworks is preferred.
- Familiarity with Model Context Protocol, AI orchestration systems, or structured interfaces for LLM-powered tools and agents is preferred.
- Experience with event-driven architectures, workflow orchestration systems, high-throughput distributed platforms, platform governance, or enterprise modernization initiatives is preferred.
Benefits
- Hyderabad-based hybrid work arrangement requiring office attendance two to three days per week.
- Competitive PTO plans including 15 earned accrued leave days, 12 sick leave days, and 12 casual leave days per year.
- 11 holidays plus four quarterly Days of Disconnect.
- Group mediclaim insurance coverage of INR 500,000 for the employee, spouse, children, and parents or parents-in-law, including EAP counseling.
- Life insurance and personal accident insurance.
- Quarterly fitness reimbursement through the Best Life Perk.
- Calm App subscription for the employee and up to four dependents over age 16.
- Financial aid toward crèche facilities for working women.
Tech Stack
GraphQLgRPC
Categories
About ABC Financial Services
ABC Financial Services (now ABC Fitness) builds club management and billing software for gyms, studios, and health clubs, combining SaaS tools with integrated payment processing. Its products cover member management, scheduling, point-of-sale, and reporting for single-location studios to multi-site fitness chains, with recurring revenue from subscriptions and processing fees. The company is privately held, backed by private equity, and headquartered in Sherwood, Arkansas, with customers across North America and internationally.