Full Stack Engineer

Software Guidance & Assistance, Inc. (SGA, Inc.); Tysons (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Software Guidance & Assistance, Inc. (SGA, Inc.) is seeking a Full-Stack Engineer for a contract assignment with a regulatory client in the DMV area.

You will own end-to-end features from UI to API and data, building new capabilities while integrating with existing platforms. The role focuses on greenfield workflow capabilities, cross-system integration, and incremental migration, with AI tooling to raise throughput.

Qualifications

• Strong full-stack experience across UI and backend with end-to-end ownership.
• Experience designing and building APIs/interfaces between distinct systems.
• Ability to work with data sources, event patterns, and legacy integrations.

Responsibilities

• Build greenfield workflow capabilities — triage, intelligent assignment, disposition, and handoff flows — from UX through backend, with production-grade rigor.
• Integrate across the ecosystem — define interfaces to data/query layers, catalogs, case-management, and legacy systems.
• Do integration discovery — reverse‑engineer existing systems and map dependencies to build interface contracts.
• Support incremental migration — coexistence of old and new systems with adapters and routing.
• Leverage AI tooling — use AI-assisted development to raise throughput and quality.
• Collaborate across disciplines — work with product, data science, UX, and domain/business partners.

Skills

Full-stack engineering

APIs and integration

AWS

Frontend frameworks

Testing and quality

AI tooling familiarity

Job description

Software Guidance & Assistance, Inc., (SGA), is searching for a Full-Stack Engineer for a CONTRACT assignment with one of our premier Regulatory clients in the DMV area or NY/NJ area.

We're hiring a Full-Stack Engineer with deep systems-integration expertise to help define and build the workflow and triage capabilities for decision analytics system.

Candidate is expected to create new capabilities from scratch while tightly integrating with existing capabilities/platforms (data, query, catalog, case-management, and legacy tools) during a multi-year, incremental (strangler-fig) migration. It suits an engineer who is equally comfortable owning a feature end-to-end (UI → API → data) and reasoning about contracts between systems.

Responsibilities

• Build greenfield workflow capabilities — triage, intelligent assignment, disposition, and handoff flows — from UX through backend, with production-grade rigor (testing, observability, security, accessibility).
• Integrate across the ecosystem — define and implement interfaces to data/query layers, metadata catalogs, case-management, and legacy surveillance systems; treat each cross-system handoff as a contract, not a wiring job.
• Do integration discovery — reverse-engineer how existing systems work, map data/interface dependencies, prototype integration approaches, and turn ambiguity into documented, buildable interface contracts.
• Support incremental migration — build for coexistence of old and new systems (dual-run, adapters, intake routing) rather than big-bang cutover.
• Leverage AI tooling — use AI-assisted development (code generation, spec-driven workflows, agentic accelerators) to raise throughput and quality; help establish patterns for the team.
• Collaborate across disciplines — work with product, data science, UX, and domain/business partners to turn requirements into working software.

Required Skills

• Strong full-stack engineering: modern front-end (e.g., Angular/React/TypeScript) and backend services (e.g., Java/Spring, Node, or Python) — comfortable owning a feature across the whole stack.
• Demonstrated systems-integration experience: designing and building APIs/interfaces between distinct systems; working with heterogeneous data sources, event/messaging patterns, and third-party/legacy integrations.
• Development rigor — testing discipline, code quality, observability, secure‑by‑default patterns, and an instinct for maintainable design under real production constraints.
• Comfort operating in ambiguity / discovery — able to investigate unfamiliar systems, ask the right questions, and produce clear technical designs and interface definitions.
• Fluency with AI‑assisted development tools and a track record (or strong appetite) for using them to accelerate delivery without sacrificing quality.
• Cloud experience (AWS preferred) — building and integrating services in a cloud environment.

Preferred Skills

• Data‑savvy: comfortable with SQL and large/structured data; able to work with data‑science partners on analytics/ML‑backed features (you don't need to be a data scientist, but you should speak the language).
• UX sensibility: strong sense for analyst‑facing usability; able to collaborate closely with UX or prototype UI when needed.
• Experience with BI/visualization platforms (e.g., QuickSight) and embedding/composing visual components.
• Experience with regulated / high‑stakes domains (financial services, compliance, surveillance) where auditability and correctness matter.
• Experience replacing or strangler‑fig‑migrating (or other pattern) a legacy platform incrementally.
• Experience with MCP / LLM‑backed tooling or building agentic/automation accelerators.

SGA is a technology and resource solutions provider driven to stand out. We are a women‑owned business. Our mission: to solve big IT problems with a more personal, boutique approach. Each year, we match consultants like you to more than 1,000 engagements. When we say let's work better together, we mean it. You'll join a diverse team built on these core values: customer service, employee development, and quality and integrity in everything we do. Be yourself, love what you do and find your passion at work. Please find us at https://sgainc.com/ .

SGA is an Equal Opportunity Employer and does not discriminate on the basis of Race, Color, Sex, Sexual Orientation, Gender Identity, Religion, National Origin, Disability, Veteran Status, Age, Marital Status, Pregnancy, Genetic Information, or Other Legally Protected Status. We are committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, and our services, programs, and activities. Please visit our company EEO page to request an accommodation or assistance regarding our policy.