AWS DevOps Services for Website and Mobile App Development
AWS DevOps is the practice of building, releasing and operating software on Amazon Web Services with infrastructure defined as code, automated pipelines, and delivery and cost outcomes you can measure. Mixcore Studio does that work for web and mobile products: picking the right AWS compute for each workload, writing the infrastructure code, building the pipeline that ships it, and instrumenting the result so both failures and the bill become visible before they turn into surprises.
We have been delivering software for more than 8 years, with a team of around 20 and 320+ projects behind us. On AWS specifically, the useful skill in 2026 is restraint. AWS publishes well over 200 services; most products need roughly a dozen of them, wired together carefully, with someone accountable for what each one costs and who gets paged when it breaks.
What we build and run on AWS
- Serverless and event-driven systems — Lambda, API Gateway, EventBridge, Step Functions and SQS. AWS has changed what serverless can hold. Lambda durable functions checkpoint multi-step workflows and can run for up to a year, suspending during waits without incurring compute charges, and Lambda Managed Instances run functions on EC2 instances inside your own account while AWS still handles instance lifecycle, OS and runtime patching, routing, load balancing and scaling (Java, Python, Node.js, .NET and Rust are supported). The 15-minute stateless function is no longer the only shape on offer.
- Containers — ECS on Fargate for most service counts, Amazon EKS where the workload genuinely needs Kubernetes scheduling, both fronted by ALB or CloudFront and deployed through the same pipeline as everything else.
- Data and storage — RDS and Aurora, DynamoDB, S3 with lifecycle rules that are actually configured rather than planned, and ElastiCache where the read pattern justifies the extra moving part.
- Delivery pipelines — GitHub Actions or GitLab CI assuming short-lived AWS roles through OIDC, with build, test, scan, sign and deploy as separate auditable stages.
- Mobile back ends — the API, authentication, push and media pipeline behind iOS and Android apps, including staged rollouts and the ability to roll a back end back independently of an app store release.
- Migrations — moving existing systems onto AWS, or off a platform that has stopped being a safe bet, with a cutover plan and a tested rollback rather than a weekend and hope.
When AWS, or Kubernetes on it, is the wrong answer
Kubernetes has won the technical argument and stopped being a sensible thing to sell on its own. The CNCF Annual Cloud Native Survey, published on 20 January 2026, found 82% of container users running Kubernetes in production, and concluded that people, culture and organisational alignment now matter more than tooling alone. The constraint is no longer whether Kubernetes works. It is whether your team wants to operate it.
So we will say plainly when it is the wrong fit. A five-service product does not need EKS. It needs ECS on Fargate, or App Runner, or Lambda, and the engineer-hours saved go into the product. If you ask us for a Kubernetes platform we will quote you the running cost in engineer-hours per month before we quote the build, because that is the number that decides whether it was a good idea a year later. Where a cluster is justified, we default to the managed control plane rather than self-managed nodes running an API server, and we put a paved road in front of it so developers deploy without learning the whole substrate.
AWS itself is not always the answer either. For a small stateless application with predictable traffic, DigitalOcean or Cloudflare Workers can be cheaper and materially simpler to operate, and we have no reason to talk you out of that. We are also careful about putting a new build on Heroku. Heroku's own update of 19 March 2026 confirms it has transitioned to a Sustaining Engineering model, whose stated mission is to provide the most stable, secure and reliable environment for the apps and data already on it, with new features limited to those that align with that goal. It is not discontinued and it is still shipping platform work, but a maintenance-track posture belongs in the decision. For an existing Heroku estate the honest advice is to plan any exit deliberately rather than panic-migrate, and to budget for the add-ons and Postgres rather than only the dynos.
Infrastructure as code, and the licence question
Every environment we build is described in code, reviewed in pull requests, and reproducible from an empty account. Which tool does that is a smaller decision in 2026 than it was two years ago.
- Terraform is not open source — it moved to the Business Source License in August 2023 and stayed there after IBM closed its $6.4 billion acquisition of HashiCorp on 27 February 2025. That is fine for most buyers, but it should be a decision rather than an assumption.
- OpenTofu is the Linux Foundation fork and has diverged on features, including native state encryption. It is our default when a client wants the licence question closed permanently.
- Pulumi made Pulumi Cloud as a Terraform backend and HCL in Pulumi IaC generally available on 4 August 2026, alongside native Terraform module support running against the Pulumi engine. It also shipped Discovered Stacks on 30 July 2026, which models existing CloudFormation stacks and Azure Resource Manager deployments alongside Pulumi stacks and treats a zero-diff preview as the gate for calling a migration done.
- CloudFormation and the AWS CDK remain reasonable where an organisation is committed to AWS and wants no third-party control plane in the path.
The practical consequence of the Pulumi release is that migrating between these tools is now incremental rather than a rewrite, which removes most of the risk from choosing one now and changing your mind later.
Supply chain, credentials and the CRA clock
Two things turned software supply chain work from a security preference into a delivery requirement, and both have dates.
The first is the npm worm family. CHAINDROP, discovered by Elastic Security Labs on 4 August 2026, compromised the maintainer of keyv and backdoored more than 400 npm packages, including keyv at over 600 million monthly downloads and flat-cache at 580 million. It follows the original Shai-Hulud worm of September 2025 and the later Shai-Hulud 2.0 wave. CHAINDROP executes from a preinstall hook in package.json, harvests credentials from developer and CI machines — cloud provider keys, GitHub and npm tokens, Kubernetes service account tokens, HashiCorp Vault tokens — and republishes packages to spread. A long-lived AWS access key in a CI secret store is no longer a defensible design. We use GitHub OIDC to assume short-lived IAM roles, scope those roles per pipeline stage, enforce a soak period before adopting new dependency versions, run npm 12 or later, where dependency lifecycle scripts are blocked by default unless the root package allows them, and require 2FA on publishing accounts.
The second is regulation. The EU Cyber Resilience Act's Article 14 reporting obligations apply from 11 September 2026: manufacturers of products with digital elements must file a 24-hour early warning, a 72-hour notification, and a final report within 14 days for an actively exploited vulnerability (one month for a severe incident), through the CRA Single Reporting Platform to their CSIRT and to ENISA simultaneously. It covers products already on the EU market, not only new ones, with full application following on 11 December 2027. The engineering answer is provenance you can produce on demand: SBOMs generated in the pipeline, SLSA v1.2 attestations (the Approved Specification since 24 November 2025), and artefacts signed with Sigstore using Cosign, Fulcio and Rekor. We also write down who holds the pager for that 24-hour clock, because a reporting duty with no named owner is not a control.
Cost, observability and the numbers we report back
OpenTelemetry graduated from the CNCF on 21 May 2026. Traces and metrics are stable across the major language SDKs, logs are stable in the specification with SDK coverage still filling in, and Profiles is still early. We instrument with OpenTelemetry and route through the Collector to CloudWatch, Amazon Managed Prometheus or a third-party backend, which means the instrumentation is an asset you own rather than a dependency on whoever is currently charging per host or per gigabyte. Writing new code against a single vendor's proprietary agent in 2026 is technical debt from the first commit.
Cost gets the same treatment, because the industry moved backwards on it. Flexera's 2026 State of the Cloud Report, published on 18 March 2026, puts wasted cloud spend at 29% — an increase for the first time in five years — and attributes the reversal to surging cloud-based AI workloads. The FinOps Foundation's State of FinOps 2026, drawn from 1,192 respondents representing more than $83 billion in annual cloud spend, reports that 98% of practitioners now manage AI spend, up from 31% in 2024. AI workloads made forecasting structurally harder. We set budgets and alerts per environment, tag for allocation from day one, and report GPU-hour or token unit economics alongside the infrastructure bill rather than reconciling it in arrears.
On delivery, we report the five metrics DORA now uses — deployment frequency, lead time for changes, change failure rate, failed-deployment recovery time, and rework rate — not just the throughput half. DORA's 2025 State of AI-assisted Software Development, with nearly 5,000 respondents, found 90% of technology professionals using AI at work and over 80% reporting productivity gains, while 30% still have little or no trust in the code it produces. Its central finding is that AI adoption raises throughput and instability together. It amplifies whatever delivery discipline already exists, which is a reason to fix the pipeline before adding more generation to it.
Capacity, residency and what leaving costs
AWS reported revenue of $42.2 billion in Q2 2026, up 37% year over year with operating income of $16.6 billion — Amazon's fastest AWS growth in 18 quarters (Amazon Q2 2026 earnings, reported 30 July 2026). Growth that fast has a downside for buyers. The major cloud providers are pouring capital into AI infrastructure — Amazon's own release reports a year-over-year increase of $66.1 billion in purchases of property and equipment over the trailing twelve months, primarily reflecting AI investment — and the same release names resource and supply volatility, including for memory chips, among the risks to its results. Capacity, not price, is increasingly the scarce input. If your roadmap needs GPUs or accelerators, the questions to settle before signing are which region, what is contracted, and what the lead time is.
Residency has become a specific question rather than a general one. The AWS European Sovereign Cloud is live with its first Region in Brandenburg, Germany, operated by a separate European parent company with subsidiaries incorporated in Germany, led by EU citizens, with day-to-day operations and physical access restricted to EU-resident personnel and no operational access from outside the EU. Local Zone expansion is planned for Belgium, the Netherlands and Portugal. If that matters to your customers, it should be in the architecture from the start, not retrofitted.
We also write the exit. That means portable infrastructure code, no undocumented proprietary glue, runbooks your own team can follow, and a costed estimate of what moving elsewhere would take. The EU Data Act makes this a normal conversation: cloud switching charges, expressly including egress fees charged for the switch, are completely prohibited in the EU from 12 January 2027. Normal operational egress for serving your users is unaffected. A vendor who cannot tell you what leaving costs is telling you something.
Our expertise
- Amazon EKS and container platforms
- Serverless and event-driven AWS
- Terraform and OpenTofu automation
- OIDC pipelines and signed builds
- OpenTelemetry observability
- FinOps and AWS cost control
Frequently asked questions
Should we use Lambda, ECS Fargate or Amazon EKS?
Lambda suits event-driven and spiky workloads, and it now also covers long-running work through durable functions, which checkpoint multi-step workflows and can run for up to a year. ECS on Fargate is the sensible default for ordinary long-lived services, because you get containers without operating a cluster. EKS earns its place when you need Kubernetes scheduling specifically, such as GPU workloads using Dynamic Resource Allocation, complex multi-tenancy, or an existing Kubernetes estate you are consolidating onto. We pick per workload rather than standardising on one and forcing everything through it.
Do we actually need Kubernetes on AWS?
Often not. The 2026 consensus is Kubernetes where necessary and a managed platform or plain containers everywhere else, and the CNCF's latest annual survey concludes that people, culture and organisational alignment now matter more than tooling alone. If you run a handful of services with a small team, EKS usually adds operating cost you then have to justify. We will tell you the monthly engineer-hours a cluster is likely to consume before you commit, and if a cluster is right, we run a managed control plane on a supported version rather than a self-managed one.
How do you keep AWS credentials out of CI pipelines?
We do not put long-lived AWS access keys in CI at all. Pipelines authenticate through OIDC and assume short-lived IAM roles scoped to a single stage, so there is no static secret to steal. This matters more since the CHAINDROP worm, discovered on 4 August 2026, backdoored over 400 npm packages by compromising a maintainer's credentials — that worm family harvests credentials from developer and CI machines, including cloud provider keys and CI tokens. We pair OIDC with dependency soak periods, npm 12 or later, where dependency lifecycle scripts are blocked by default unless the root package allows them, and enforced 2FA on publishing accounts.
Who files the 24-hour report under the EU Cyber Resilience Act?
Legally, the manufacturer of the product with digital elements, which in most engagements is you rather than us. From 11 September 2026 the CRA requires an early warning within 24 hours of an actively exploited vulnerability, a notification within 72 hours, and a final report within 14 days, submitted through the CRA Single Reporting Platform to your CSIRT and ENISA. What we build is the evidence and the process behind it — SBOMs generated in the pipeline, SLSA v1.2 attestations, Sigstore-signed artefacts, and a documented on-call rota with a named owner for that clock. We are engineers, not your legal advisers, and we will say so where the question is legal rather than technical.
How do you keep the AWS bill predictable when AI workloads are involved?
By making unit economics visible before the invoice. We tag for allocation from the first deployment, set per-environment budgets and alerts, and report GPU-hour or token cost per transaction alongside the infrastructure total. This is now the norm rather than a refinement: the FinOps Foundation's State of FinOps 2026 found 98% of practitioners managing AI spend, up from 31% in 2024, while Flexera's 2026 State of the Cloud Report put wasted cloud spend at 29%, the first rise after five years of decline. We also confirm capacity and region up front, since accelerator capacity in a given region is not something to assume.
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