Senior C# Developer
We are seeking an experienced Senior C# Developer to join a collaborative engineering team focused on enhancing Portfolio Management capabilities.
This role will partner closely with engineering, trading, risk, and operations teams to design and deliver scalable, high-performance solutions that improve portfolio transparency, accuracy, and operational efficiency across the firm. The ideal candidate combines strong technical expertise in C#/.NET with a deep understanding of portfolio and position management concepts, and an interest in modern development practices including AI-enabled engineering and specification-driven development.
Responsibilities
Partner with cross-functional teams to improve and extend portfolio management capabilities
Enhance portfolio aggregation, exposure calculation, and P&L reporting functionality
Improve intraday and end-of-day position workflows and controls
Contribute to strategic initiatives modernizing portfolio and position infrastructure
Core Development
Design, develop, and maintain high-performance services in C# / .NET
Contribute to the evolution of the Position Service architecture
Develop and enhance functionality within the Portfolio Management platform
Build scalable, resilient microservices supporting portfolio and order management workflows
Write clean, maintainable, and well-tested code following engineering best practices
Identify opportunities to leverage AI/ML and automation to enhance portfolio analytics, reconciliation, monitoring, and operational workflows
Collaborate on integrating AI-driven tools into the development lifecycle (e.g., intelligent code generation, review, testing, and documentation)
Contribute to the design of systems that enable advanced analytics and data-driven insights
Specification-Driven Development
Promote and apply specification-driven development practices, including clear technical design documents and formalized functional requirements
Translate business requirements into precise system specifications prior to implementation
Ensure alignment between architecture, documentation, and delivered functionality
Improve development velocity and quality through stronger upfront design and validation processes
System Design & Optimization
Improve system performance, scalability, and reliability
Optimize data processing pipelines and database interactions
Design and maintain robust APIs for internal consumers
Support both real-time and batch processing requirements
Work closely with portfolio managers, traders, risk, and operations teams to translate business requirements into technical solutions
Collaborate within the engineering team to drive architectural improvements
Participate in code reviews and mentor junior developers
Promote best practices in testing, CI/CD, monitoring, and observability
Mandatory Skills
7+ years of professional software development experience.
Strong expertise in C# and .NET (Core/Framework).
Experience building distributed systems and service-oriented architectures.
Full lifecycle experience including requirements gathering, implementation, testing, release, and support.
Strong SQL and database design experience.
Experience with messaging systems and asynchronous programming.
Independent mindset, passion for technology, and an appetite for taking ownership, learning new technologies, and building innovative products.
Experience in Cloud (Azure/AWS/GCP) experience involving stateless and serverless solutions, and cost optimization
Exposure to multi-threaded programming concepts.
Excellent written and verbal communication skills.
Strong team player.
Bachelor's degree in computer science or engineering.
Software Engineer
We are looking for a highly skilled Software Engineer to join our team. You will primarily be utilizing .NET Core, C#, SQL. We hire innovative software development professionals who can work well within a highly collaborative, agile team to develop high quality, testable software. Ideally, you will have a wide breadth of experience performing development in a .NET environment and developing integrations to third‑party systems.
Remote (US)
Responsibilities
Developing SaaS applications, including .NET APIs, and React applications
Working with our product organization to understand business requirements and objectives
Contributing to overall system architecture strategy and design
Leading by example and setting a high standard for code quality
Performing code and design reviews
Motivating an agile team and fostering collaboration and innovation across our development organization
Qualifications
Minimum 5 years full-stack experience working through design, implementation, testing, and delivering high availability enterprise applications
Bachelor’s degree in Computer Science or related field, or 4‑6 years of related experience
Should have a record of successful delivery of software applications as an individual and with a team
Strong understanding of the Agile software development methodologies and principles
Experience with CI/CD
Frontend experience is a plus (Angular, React)
Understanding of cloud native applications (Azure, AWS)
Software Engineer – Integrations
We’re working with a mission‑driven healthcare technology company focused on improving how patient data flows across systems to drive better outcomes at scale. Their platform supports millions of patients and is built around interoperability, data, and real‑world impact.
What you’ll be doing
Build and maintain backend integrations across APIs, databases, and external systems
Work on data flows, ETL processes, and system‑to‑system integrations
Develop and support integration workflows using tools like Rhapsody / Mirth (or similar integration engines)
Collaborate with product and engineering teams to deliver scalable, reliable solutions
Contribute to integration architecture and platform connectivity
What they’re looking for
Experience with Ruby / Ruby on Rails
Background in backend systems, integrations, and distributed systems
Experience with APIs (REST), ETL, middleware, or event‑driven architecture
Experience working with cloud platforms (AWS, GCP, or Azure)
Solid understanding of databases (Postgres / SQL)
Nice to Have
Experience with integration engines (Rhapsody, Mirth, or similar)
Exposure to healthcare interoperability (FHIR, HL7, EHR/EMR systems)
Experience working with messaging platforms or communication APIs
Experience in data‑heavy or highly regulated environments
Fully remote (US) | Competitive hourly rate | 12‑month contract (likely to extend)
Principal Data Engineer
The Principal Data Engineer is a senior technical authority responsible for defining Boldin’s data architecture, setting long‑term technical strategy, and tackling our most complex data engineering challenges. This role shapes company‑wide data standards, and partners with executive and cross‑functional leaders to ensure our data platform scales with the business.
Key Responsibilities
Define and evolve long‑term data architecture and vision
Design resilient and scalable data platform and pipelines
Set standards for data modeling, reliability, observability, and governance
Lead complex, high‑risk technical initiatives and migrations
Influence tool selection, and technology adoption across the data stack
Partner with leadership to align data strategy and business goals
Enable analytics, ML, and product use cases
Uptime: Consistently meets SLA for business‑critical pipelines
Freshness: All Tier 1 datasets delivered within SLA
Delivery predictability: Majority of sprint commitments completed as planned
Cost optimization: Year‑over‑year efficiency improvement as data scales
Documentation: Full coverage for all production‑grade assets
Qualifications
Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)
10+ years of experience in data engineering or related disciplines
Proficient in SQL, Python, or related languages
Strong experience with data warehouse, data lakes, and distributed systems
Strong experience with modern data stack (Athena, BigQuery, Glue, Spark, Dataproc, Kafka, Flink, dbt, Kestra, Fivetran or equivalent)
Proven ability to build and maintain production‑grade ELT/ETL pipelines
Experience with workflow orchestration (e.g., Airflow, Dagster, Prefect, Cloud Composer)
Experience implementing data quality and observability frameworks
Performance and cost optimization in cloud warehouses
Good spoken English
Product & Business Partnership
Experience supporting product analytics and experimentation
Ability to translate business requirements into scalable data models
Strong ownership and accountability for SLAs
Nice to Have
Experience working with Kubernetes
Experience structuring data for ML or AI use cases
Familiarity with Amplitude or product event pipelines
Experience in a high‑growth SaaS or fintech environment
Influencing technical direction without direct managerial authority
Collaborative and innovative work environment.
Flex PTO for any reason, including sick days (no specified limits), flexible work schedule.
Personal laptop.
Health and wellness package.
Budget for English lessons.
Senior Kotlin Software Engineer
We’re looking for a Senior Kotlin Software Engineer to join our team. You’ll design, build, and maintain backend services that power our applications, working closely with frontend and product teams to deliver scalable, reliable, and secure APIs.
What you will do
Design and implement backend services using Kotlin and Spring Boot.
Build and maintain REST APIs consumed by our applications.
Work with PostgreSQL databases, ensuring performance and reliability.
Collaborate with product, frontend, and QA teams to deliver high‑quality features.
Write clean, testable, and maintainable code following best practices.
Contribute to system design and architecture discussions.
What we expect from you
5 years of experience in software engineering.
Deep expertise with Kotlin and Spring Boot, including complex system design.
Strong focus on performance, security, and reliability.
Ability to mentor junior/mid engineers and lead technical initiatives.
Experience with monitoring and observability practices.
Good English communication skills (written and spoken).
Nice to Have
Experience with containerization (Docker, Kubernetes).
Familiarity with monitoring tools (Prometheus, Grafana).
Additional Information
Working schedule follows the Portugal time zone.
Computer Vision Engineer
Build AI‑Powered Computer‑Vision Products with Us. Our company specializes in AI‑driven computer vision solutions for the wood industry, enhancing production efficiency and sustainability.
Your Role
Work in an Agile environment with a team of experienced developers, researchers, and business analysts
Architect and develop highly performant software components, with an emphasis on scalability and robustness
Build back‑end components for web‑based applications built around the product
Actively participate with ideas for improving the product
Write automated tests and document your code
Participate in code review sessions
Engage in knowledge transfer and coaching sessions – you’ll have the opportunity to understand how the entire ecosystem works and contribute to components of the project which you might be interested in – AI, computer vision, HPC.
Work and innovate with R&D to integrate research results into the final product
What We Need from You
Technical Bachelor's degree
Have a very high understanding of OOP concepts and comprehensive knowledge across programming fields
Self‑driven and able to drive tasks to completion independently
Pragmatic and goal‑oriented
Very good technical knowledge and work experience with Java, Spring Boot, JPA, SQL
Ability to architect complex features, focusing on performance
Image processing/computer vision skills are a plus
What We Offer
Flat structure—initiative beats hierarchy
Training, coaching, and certifications
Periodic performance evaluations
Performance or special occasion bonuses
Team buildings
Plus, a high‑tech lab with industrial cameras and lasers
Lead Software Engineer – AI
We are hiring a Lead Software Engineer – AI with strong experience in building Generative AI‑based products in a commercial environment.
Experience Required
3–5 years in software product development
2+ years hands‑on experience with Generative AI
Key Skills
Experience with LLMs, Transformer architectures, Deep Learning
Strong background in statistical modeling (clustering, regression, PCA, time‑series, Bayesian methods)
Knowledge of modern ML techniques (ensemble methods, gradient boosting, representation learning)
Experience with AWS/GCP or other cloud platforms
Understanding of MLOps fundamentals
Agile methodology experience required
Prior experience leading AI/ML projects solving real business problems
Senior/Staff Platform Software Engineer (PHP/Angular)
We are looking for a full‑time, remote Senior/Staff Platform Software Engineer with 7+ years of experience to join our U.S. client. The role focuses on designing, building, and evolving the foundational systems that power the products.
Responsibilities
Design and implement scalable platform services using PHP as a primary backend language
Build and maintain frontend systems using TypeScript and Angular
Architect and evolve shared platform capabilities used across multiple products and teams
Translate product requirements into pragmatic, maintainable technical solutions
Apply Domain‑Driven Design (DDD) principles and architectural modeling to complex business domains
Make sound tradeoffs between ideal architecture and practical delivery timelines
Build and integrate systems leveraging LLM‑based tools to accelerate development workflows
Design and implement features powered by LLMs and agent‑based systems, including orchestration, evaluation, and observability
Improve engineering velocity through tooling, automation, and thoughtful system design
Collaborate cross‑functionally with product and design teams to ensure technical decisions align with customer needs
Contribute to cloud architecture decisions and ensure systems are scalable, secure, and cost‑aware
Required Experience
7+ years of professional software engineering experience
Deep, production‑grade experience with PHP
Strong front‑end development experience using TypeScript and Angular
Experience designing and operating distributed systems in production
Strong understanding of API design, RESTful services, and event‑driven systems and solid knowledge of relational databases and data modeling
Practical experience applying Domain‑Driven Design (DDD) concepts and architectural models (layered architecture, hexagonal/clean architecture, event‑driven architecture, etc.)
Demonstrated ability to evolve legacy systems incrementally
Ability to design systems that balance correctness, scalability, cost, and delivery speed
Hands‑on experience deploying and operating systems in AWS, with familiarity with core AWS services (e.g., EC2, ECS/EKS, Lambda, RDS, S3, API Gateway, CloudWatch, IAM) and strong understanding of cloud‑native patterns, scalability, reliability, and cost optimization
Experience with infrastructure‑as‑code (e.g., Terraform, CloudFormation, CDK) is strongly preferred
Hands‑on experience using LLM‑based tools in daily development workflows
Experience integrating LLM APIs into production systems
Familiarity with prompt design, evaluation strategies, and reliability patterns
Ideally: experience building features or internal tools powered by LLM agents, including orchestration, tool use, guardrails, and monitoring
Strong product mindset with pragmatic decision‑maker — prioritizes customer impact over theoretical purity and avoids dogmatic adherence to patterns or tools
Experience making technical trade‑offs in ambiguous environments
Ability to reason about cost, complexity, maintainability, and time‑to‑market
Highly self‑motivated and accountable, with the ability to drive initiatives independently from concept to production with minimal oversight
Comfortable operating in environments with evolving requirements
Desired Experience
Experience with other major cloud providers (GCP or Azure) is a plus
Experience defining platform strategy or technical direction across teams
Experience mentoring engineers and raising overall engineering standards
Proven track record of modernizing systems at scale
Experience designing developer platforms or internal tooling ecosystems
Strong opinions loosely held — able to debate rigorously and adapt when new information emerges
Additional Information
Knowing your ideas are heard and matter think big!
You get to own your job and be recognized for your contributions
Work with smart and creative people
Making mistakes is human. Lets learn from them. Be transparent!
We recognize you as an individual no presumptions or judgment. Be the extraordinary you!
15 days Paid Time Off (PTO), 1 floating day, 3 sick days, and designated national holidays
Start: ASAP
#J-18808-Ljbffr