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An analyst follows requirements from the customer's first brief through to acceptance. The work centres on process models, data structures and the contracts between systems.

BPMN / UML / ER · SQL · REST / SOAP

Databases need attention during routine operation and after an incident. This field covers Oracle or PostgreSQL administration, access controls, recovery and performance.

Oracle / PostgreSQL · SQL · Linux / monitoring

A dashboard needs checked data and a clear calculation behind each metric. Analysts use SQL and BI tools to investigate changes and explain the findings to decision-makers.

SQL · Python / Pandas · Power BI / self-hosted BI

Data pipelines need to handle retries, failures and source changes. Data engineers build pipelines and marts, check completeness and investigate discrepancies.

SQL / DWH · Python / Scala / Java · ETL / ELT

Automated tests should help a team investigate defects and understand its coverage. Engineers in this field develop C# frameworks for web and API tests and run them in CI/CD.

C# · API / SQL · CI/CD / test frameworks

Integration testing goes beyond an HTTP response to data, messages and dependent services. Java test automation covers web and API checks, mocks and test reporting.

Java / JUnit / TestNG · Selenium / Selenide / RestAssured · CI/CD / SQL

A load test helps reveal where a system stops coping. The engineer defines the load profile, collects metrics and traces delays to the application, database or network.

JMeter / Locust / k6 · Java / Python · Grafana / Prometheus

Python test automation involves API contracts, test data and service dependencies. Engineers maintain pytest frameworks, test integrations and connect tests to CI/CD.

Python / pytest · httpx / requests · SQL / CI/CD

A Python backend connects user requests, data and external services. The work includes APIs, integrations, automated tests and diagnosing running applications.

Python 3 · FastAPI / Django / Flask · PostgreSQL / pytest

The Java field covers backend services and data exchange between systems. The role uses Java 17 and Spring Boot 3+; Kotlin with Ktor is also a priority.

Java 17 / Spring Boot 3+ · Kotlin / Ktor · PostgreSQL / Kafka

Bitrix24 development connects CRM processes with other systems. Developers build applications and integration services, configure smart processes and support implementation.

Bitrix24 REST API · Smart processes / OAuth · PHP / Node.js

1C development connects application code with accounting and operational processes. The work covers configuration changes, system integrations and data validation after migration.

1C:Enterprise 8.x · 1C:ERP / 1C:Accounting · REST / SOAP / Data Conversion 2/3

An AppSec engineer investigates how vulnerabilities arise and how to fix them in a product. The work includes application audits, threat modelling and security checks during development.

OWASP · SAST / DAST · Secure SDLC

.NET services often sit between APIs, databases and message queues. Developers design these interactions, cover them with tests and investigate failures.

.NET / SOLID · REST / gRPC · Entity Framework / SQL

Go work centres on backend services and their behaviour under load. Developers work with concurrency, service communication and profiling.

Go / goroutines · REST / gRPC · SQL / observability

Node.js developers build APIs and connect backends to data and external services. The work calls for asynchronous programming, API contracts and testing integration behaviour.

Node.js / TypeScript · SQL / NoSQL · Unit / integration tests

Computer vision requires work on both models and image data. Engineers prepare datasets, develop detection and segmentation models and optimise inference for the deployment environment.

Python / OpenCV · PyTorch / TensorFlow · ONNX / TensorRT

A recommender service starts with candidate retrieval and continues through to evaluating what the user sees. The work covers ranking, features, experiments and quality monitoring.

Python / PyTorch · SQL / Spark · Retrieval / ranking / A/B

Classic ML work starts with a business metric and the data needed to predict it. Engineers create features, validate models and track quality after release.

Python / SQL · scikit-learn / boosting · MLflow / DVC

Language model work involves both answer quality and the resources needed to produce it. Engineers build RAG pipelines, adapt models and integrate them into applications through APIs.

Hugging Face · RAG / vector databases · LoRA / vLLM

Frontend developers work on the interface people use every day. The work includes components, forms, API integration, responsive layouts and checking behaviour in the browser.

TypeScript / JavaScript · React / Vue / Angular · HTML / CSS / automated tests

Android development covers screens, on-device data and API connections. The field calls for Kotlin, asynchronous programming and support after release.

Kotlin / Android SDK · Coroutines / Flow · Compose / MVVM

The Swift field has two tracks: iOS and server-side development. Specialist experience in one track is sufficient; the profile covers shared requirements and each track's tools.

Swift / async-await · UIKit / SwiftUI or Vapor / Hummingbird · Testing / CI/CD