Tech Lead - Backend (Node.js / PostgreSQL / MongoDB) - Full-Stack Capable

Solvd, Inc.

Ukraine · Full-time · Mid-Senior

Solvd Inc. is a rapidly growing AI-native consulting and technology services firm delivering enterprise transformation across cloud, data, software engineering, and artificial intelligence. We work with industry-leading organizations to design, build, and operationalize technology solutions that drive measurable business outcomes.

Following the acquisition of Tooploox, a premier AI and product development company, Solvd now offers true end-to-end delivery—from strategic advisory and solution design to custom AI development and enterprise-scale implementation. Our capability centers combine deep technical expertise, proven delivery methodologies, and sector-specific knowledge to address complex business challenges quickly and effectively.

We are seeking a hands-on Tech Lead who will drive the design, implementation, and delivery of backend services and database-driven insurance allocation engines - while also contributing on the full-stack when needed. The ideal candidate is backend-strong (Node.js + PostgreSQL/MongoDB) with the ability to guide engineers across the stack (React/TypeScript).

The candidate will work closely with an existing Solution Architect (who owns target architecture and high-level design) while taking ownership of engineering execution, code quality, sprint delivery, mentoring, and day-to-day technical decisions. The systems you help build must be scalable, auditable, and transparent, powering complex, multi-tier insurance allocation logic used by enterprise clients.

What you'll do

Leadership & Delivery

Lead a team of backend/full-stack engineers, ensuring high-quality delivery and predictable execution.
Collaborate with the Solution Architect to align implementation with architectural standards and long-term goals.
Own engineering execution: task breakdown, backlog refinement, technical planning, and development workflows.
Mentor developers through code reviews, pair programming, and technical guidance.
Partner with Product, Actuaries/SMEs, and UI teams to clarify requirements and define data/API contracts.

Backend Engineering (Hands-On)

Design and build backend services with Node.js (NestJS).
Implement secure, scalable REST APIs and services for complex calculation workflows.
Integrate PostgreSQL calculation logic into backend services with clean orchestration, data validation, and error handling.
Use MongoDB where document-oriented storage is beneficial.

PostgreSQL / Calculation Engine

Develop multi-tier allocation and rating logic using SQL and PL/pgSQL stored procedures.
Design schemas, indexing, and data pipelines optimized for performance, scale, and auditability.
Conduct execution plan analysis, query tuning, and partitioning for large insurance datasets.
Ensure deterministic, traceable, and versioned business logic.

Full-Stack Contribution (as needed)

Support UI integration and occasionally contribute to React + TypeScript front-end components.
Collaborate on API-driven UX workflows, contract changes, and end-to-end feature delivery.

Quality, Observability & Reliability

Implement automated tests (backend + DB logic), enforce code quality, and uphold CI/CD standards.
Improve logging, monitoring, metrics, and alerting to ensure production readiness and transparency.
Participate in production support, root cause analysis, and continuous improvement.

What you bring

Expert-level Node.js (TypeScript) with experience in Express/NestJS.
Strong expertise with PostgreSQL (PL/pgSQL, query tuning, indexing, performance).
Experience with MongoDB as a supporting data store.
Proven experience leading engineering teams and driving delivery in a Tech Lead / Lead Engineer capacity.
Strong understanding of REST API design, distributed systems, and backend scalability.
Familiarity with React + TypeScript and ability to contribute meaningfully on the front end.
Excellent communication and stakeholder collaboration skills.
Strong testing mindset and experience with CI/CD pipelines.

Nice to have

Insurance, fintech, or actuarial systems experience.
Experience with Databricks.
Experience with AWS/Azure, Docker, and observability stacks.

Tech stack

Backend: Node.js, TypeScript, NestJS
Databases: PostgreSQL (primary), MongoDB (secondary)
Frontend: React, TypeScript
Tooling: Docker, GitHub Actions, monitoring/logging stack, CI/CD
APIs: REST (WebSockets optional)

When you join Solvd, you'll…

Shape real-world AI-driven projects across key industries, working with clients from startup innovation to enterprise transformation.
Be part of a global team with equal opportunities for collaboration across continents and cultures.
Thrive in an inclusive environment that prioritizes continuous learning, innovation, and ethical AI standards.

Ready to make an impact?

If you're excited to build things that matter, champion responsible AI, and grow with some of the industry’s sharpest minds. Apply today and let’s innovate together.

Key Skills

Ranked by relevance

ai typescript postgresql react docker cicd ui technical expertise storage sql ux

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